2175 lines
81 KiB
Plaintext
2175 lines
81 KiB
Plaintext
# 2010 July 16
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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#
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# This file implements tests to verify that the "testable statements" in
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# the lang_select.html document are correct.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable !compound {
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finish_test
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return
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}
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do_execsql_test e_select-1.0 {
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CREATE TABLE t1(a, b);
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INSERT INTO t1 VALUES('a', 'one');
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INSERT INTO t1 VALUES('b', 'two');
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INSERT INTO t1 VALUES('c', 'three');
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CREATE TABLE t2(a, b);
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INSERT INTO t2 VALUES('a', 'I');
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INSERT INTO t2 VALUES('b', 'II');
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INSERT INTO t2 VALUES('c', 'III');
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CREATE TABLE t3(a, c);
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INSERT INTO t3 VALUES('a', 1);
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INSERT INTO t3 VALUES('b', 2);
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CREATE TABLE t4(a, c);
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INSERT INTO t4 VALUES('a', NULL);
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INSERT INTO t4 VALUES('b', 2);
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} {}
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set t1_cross_t2 [list \
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a one a I a one b II \
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a one c III b two a I \
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b two b II b two c III \
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c three a I c three b II \
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c three c III \
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]
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set t1_cross_t1 [list \
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a one a one a one b two \
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a one c three b two a one \
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b two b two b two c three \
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c three a one c three b two \
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c three c three \
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]
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# This proc is a specialized version of [do_execsql_test].
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#
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# The second argument to this proc must be a SELECT statement that
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# features a cross join of some time. Instead of the usual ",",
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# "CROSS JOIN" or "INNER JOIN" join-op, the string %JOIN% must be
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# substituted.
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#
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# This test runs the SELECT three times - once with:
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#
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# * s/%JOIN%/,/
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# * s/%JOIN%/JOIN/
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# * s/%JOIN%/INNER JOIN/
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# * s/%JOIN%/CROSS JOIN/
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#
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# and checks that each time the results of the SELECT are $res.
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#
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proc do_join_test {tn select res} {
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foreach {tn2 joinop} [list 1 , 2 "CROSS JOIN" 3 "INNER JOIN"] {
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set S [string map [list %JOIN% $joinop] $select]
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uplevel do_execsql_test $tn.$tn2 [list $S] [list $res]
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}
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}
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#-------------------------------------------------------------------------
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# The following tests check that all paths on the syntax diagrams on
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# the lang_select.html page may be taken.
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#
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# -- syntax diagram join-constraint
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#
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do_join_test e_select-0.1.1 {
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SELECT count(*) FROM t1 %JOIN% t2 ON (t1.a=t2.a)
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} {3}
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do_join_test e_select-0.1.2 {
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SELECT count(*) FROM t1 %JOIN% t2 USING (a)
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} {3}
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do_join_test e_select-0.1.3 {
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SELECT count(*) FROM t1 %JOIN% t2
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} {9}
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do_catchsql_test e_select-0.1.4 {
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SELECT count(*) FROM t1, t2 ON (t1.a=t2.a) USING (a)
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} {1 {near "USING": syntax error}}
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do_catchsql_test e_select-0.1.5 {
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SELECT count(*) FROM t1, t2 USING (a) ON (t1.a=t2.a)
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} {1 {near "ON": syntax error}}
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# -- syntax diagram select-core
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#
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# 0: SELECT ...
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# 1: SELECT DISTINCT ...
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# 2: SELECT ALL ...
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#
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# 0: No FROM clause
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# 1: Has FROM clause
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#
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# 0: No WHERE clause
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# 1: Has WHERE clause
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#
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# 0: No GROUP BY clause
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# 1: Has GROUP BY clause
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# 2: Has GROUP BY and HAVING clauses
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#
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do_select_tests e_select-0.2 {
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0000.1 "SELECT 1, 2, 3 " {1 2 3}
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1000.1 "SELECT DISTINCT 1, 2, 3 " {1 2 3}
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2000.1 "SELECT ALL 1, 2, 3 " {1 2 3}
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0100.1 "SELECT a, b, a||b FROM t1 " {
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a one aone b two btwo c three cthree
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}
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1100.1 "SELECT DISTINCT a, b, a||b FROM t1 " {
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a one aone b two btwo c three cthree
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}
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1200.1 "SELECT ALL a, b, a||b FROM t1 " {
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a one aone b two btwo c three cthree
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}
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0010.1 "SELECT 1, 2, 3 WHERE 1 " {1 2 3}
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0010.2 "SELECT 1, 2, 3 WHERE 0 " {}
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0010.3 "SELECT 1, 2, 3 WHERE NULL " {}
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1010.1 "SELECT DISTINCT 1, 2, 3 WHERE 1 " {1 2 3}
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2010.1 "SELECT ALL 1, 2, 3 WHERE 1 " {1 2 3}
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0110.1 "SELECT a, b, a||b FROM t1 WHERE a!='x' " {
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a one aone b two btwo c three cthree
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}
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0110.2 "SELECT a, b, a||b FROM t1 WHERE a=='x'" {}
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1110.1 "SELECT DISTINCT a, b, a||b FROM t1 WHERE a!='x' " {
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a one aone b two btwo c three cthree
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}
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2110.0 "SELECT ALL a, b, a||b FROM t1 WHERE a=='x'" {}
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0001.1 "SELECT 1, 2, 3 GROUP BY 2" {1 2 3}
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0002.1 "SELECT 1, 2, 3 GROUP BY 2 HAVING count(*)=1" {1 2 3}
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0002.2 "SELECT 1, 2, 3 GROUP BY 2 HAVING count(*)>1" {}
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1001.1 "SELECT DISTINCT 1, 2, 3 GROUP BY 2" {1 2 3}
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1002.1 "SELECT DISTINCT 1, 2, 3 GROUP BY 2 HAVING count(*)=1" {1 2 3}
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1002.2 "SELECT DISTINCT 1, 2, 3 GROUP BY 2 HAVING count(*)>1" {}
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2001.1 "SELECT ALL 1, 2, 3 GROUP BY 2" {1 2 3}
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2002.1 "SELECT ALL 1, 2, 3 GROUP BY 2 HAVING count(*)=1" {1 2 3}
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2002.2 "SELECT ALL 1, 2, 3 GROUP BY 2 HAVING count(*)>1" {}
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0101.1 "SELECT count(*), max(a) FROM t1 GROUP BY b" {1 a 1 c 1 b}
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0102.1 "SELECT count(*), max(a) FROM t1 GROUP BY b HAVING count(*)=1" {
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1 a 1 c 1 b
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}
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0102.2 "SELECT count(*), max(a) FROM t1 GROUP BY b HAVING count(*)=2" {}
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1101.1 "SELECT DISTINCT count(*), max(a) FROM t1 GROUP BY b" {1 a 1 c 1 b}
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1102.1 "SELECT DISTINCT count(*), max(a) FROM t1
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GROUP BY b HAVING count(*)=1" {
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1 a 1 c 1 b
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}
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1102.2 "SELECT DISTINCT count(*), max(a) FROM t1
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GROUP BY b HAVING count(*)=2" {}
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2101.1 "SELECT ALL count(*), max(a) FROM t1 GROUP BY b" {1 a 1 c 1 b}
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2102.1 "SELECT ALL count(*), max(a) FROM t1
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GROUP BY b HAVING count(*)=1" {
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1 a 1 c 1 b
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}
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2102.2 "SELECT ALL count(*), max(a) FROM t1
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GROUP BY b HAVING count(*)=2" {}
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0011.1 "SELECT 1, 2, 3 WHERE 1 GROUP BY 2" {1 2 3}
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0012.1 "SELECT 1, 2, 3 WHERE 0 GROUP BY 2 HAVING count(*)=1" {}
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0012.2 "SELECT 1, 2, 3 WHERE 0 GROUP BY 2 HAVING count(*)>1" {}
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1011.1 "SELECT DISTINCT 1, 2, 3 WHERE 0 GROUP BY 2" {}
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1012.1 "SELECT DISTINCT 1, 2, 3 WHERE 1 GROUP BY 2 HAVING count(*)=1"
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{1 2 3}
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1012.2 "SELECT DISTINCT 1, 2, 3 WHERE NULL GROUP BY 2 HAVING count(*)>1" {}
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2011.1 "SELECT ALL 1, 2, 3 WHERE 1 GROUP BY 2" {1 2 3}
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2012.1 "SELECT ALL 1, 2, 3 WHERE 0 GROUP BY 2 HAVING count(*)=1" {}
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2012.2 "SELECT ALL 1, 2, 3 WHERE 'abc' GROUP BY 2 HAVING count(*)>1" {}
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0111.1 "SELECT count(*), max(a) FROM t1 WHERE a='a' GROUP BY b" {1 a}
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0112.1 "SELECT count(*), max(a) FROM t1
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WHERE a='c' GROUP BY b HAVING count(*)=1" {1 c}
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0112.2 "SELECT count(*), max(a) FROM t1
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WHERE 0 GROUP BY b HAVING count(*)=2" {}
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1111.1 "SELECT DISTINCT count(*), max(a) FROM t1 WHERE a<'c' GROUP BY b"
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{1 a 1 b}
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1112.1 "SELECT DISTINCT count(*), max(a) FROM t1 WHERE a>'a'
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GROUP BY b HAVING count(*)=1" {
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1 c 1 b
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}
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1112.2 "SELECT DISTINCT count(*), max(a) FROM t1 WHERE 0
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GROUP BY b HAVING count(*)=2" {}
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2111.1 "SELECT ALL count(*), max(a) FROM t1 WHERE b>'one' GROUP BY b"
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{1 c 1 b}
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2112.1 "SELECT ALL count(*), max(a) FROM t1 WHERE a!='b'
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GROUP BY b HAVING count(*)=1" {
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1 a 1 c
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}
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2112.2 "SELECT ALL count(*), max(a) FROM t1
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WHERE 0 GROUP BY b HAVING count(*)=2" {}
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}
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# -- syntax diagram result-column
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#
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do_select_tests e_select-0.3 {
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1 "SELECT * FROM t1" {a one b two c three}
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2 "SELECT t1.* FROM t1" {a one b two c three}
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3 "SELECT 'x'||a||'x' FROM t1" {xax xbx xcx}
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4 "SELECT 'x'||a||'x' alias FROM t1" {xax xbx xcx}
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5 "SELECT 'x'||a||'x' AS alias FROM t1" {xax xbx xcx}
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}
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# -- syntax diagram join-source
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#
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# -- syntax diagram join-op
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#
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do_select_tests e_select-0.4 {
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1 "SELECT t1.rowid FROM t1" {1 2 3}
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2 "SELECT t1.rowid FROM t1,t2" {1 1 1 2 2 2 3 3 3}
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3 "SELECT t1.rowid FROM t1,t2,t3" {1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 3}
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4 "SELECT t1.rowid FROM t1" {1 2 3}
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5 "SELECT t1.rowid FROM t1 JOIN t2" {1 1 1 2 2 2 3 3 3}
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6 "SELECT t1.rowid FROM t1 JOIN t2 JOIN t3"
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{1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 3}
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7 "SELECT t1.rowid FROM t1 NATURAL JOIN t3" {1 2}
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8 "SELECT t1.rowid FROM t1 NATURAL LEFT OUTER JOIN t3" {1 2 3}
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9 "SELECT t1.rowid FROM t1 NATURAL LEFT JOIN t3" {1 2 3}
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10 "SELECT t1.rowid FROM t1 NATURAL INNER JOIN t3" {1 2}
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11 "SELECT t1.rowid FROM t1 NATURAL CROSS JOIN t3" {1 2}
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12 "SELECT t1.rowid FROM t1 JOIN t3" {1 1 2 2 3 3}
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13 "SELECT t1.rowid FROM t1 LEFT OUTER JOIN t3" {1 1 2 2 3 3}
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14 "SELECT t1.rowid FROM t1 LEFT JOIN t3" {1 1 2 2 3 3}
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15 "SELECT t1.rowid FROM t1 INNER JOIN t3" {1 1 2 2 3 3}
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16 "SELECT t1.rowid FROM t1 CROSS JOIN t3" {1 1 2 2 3 3}
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}
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# -- syntax diagram compound-operator
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#
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do_select_tests e_select-0.5 {
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1 "SELECT rowid FROM t1 UNION ALL SELECT rowid+2 FROM t4" {1 2 3 3 4}
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2 "SELECT rowid FROM t1 UNION SELECT rowid+2 FROM t4" {1 2 3 4}
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3 "SELECT rowid FROM t1 INTERSECT SELECT rowid+2 FROM t4" {3}
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4 "SELECT rowid FROM t1 EXCEPT SELECT rowid+2 FROM t4" {1 2}
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}
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# -- syntax diagram ordering-term
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#
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do_select_tests e_select-0.6 {
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1 "SELECT b||a FROM t1 ORDER BY b||a" {onea threec twob}
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2 "SELECT b||a FROM t1 ORDER BY (b||a) COLLATE nocase" {onea threec twob}
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3 "SELECT b||a FROM t1 ORDER BY (b||a) ASC" {onea threec twob}
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4 "SELECT b||a FROM t1 ORDER BY (b||a) DESC" {twob threec onea}
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}
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# -- syntax diagram select-stmt
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#
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do_select_tests e_select-0.7 {
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1 "SELECT * FROM t1" {a one b two c three}
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2 "SELECT * FROM t1 ORDER BY b" {a one c three b two}
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3 "SELECT * FROM t1 ORDER BY b, a" {a one c three b two}
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4 "SELECT * FROM t1 LIMIT 10" {a one b two c three}
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5 "SELECT * FROM t1 LIMIT 10 OFFSET 5" {}
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6 "SELECT * FROM t1 LIMIT 10, 5" {}
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7 "SELECT * FROM t1 ORDER BY a LIMIT 10" {a one b two c three}
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8 "SELECT * FROM t1 ORDER BY b LIMIT 10 OFFSET 5" {}
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9 "SELECT * FROM t1 ORDER BY a,b LIMIT 10, 5" {}
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10 "SELECT * FROM t1 UNION SELECT b, a FROM t1"
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{a one b two c three one a three c two b}
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11 "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY b"
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{one a two b three c a one c three b two}
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12 "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY b, a"
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{one a two b three c a one c three b two}
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13 "SELECT * FROM t1 UNION SELECT b, a FROM t1 LIMIT 10"
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{a one b two c three one a three c two b}
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14 "SELECT * FROM t1 UNION SELECT b, a FROM t1 LIMIT 10 OFFSET 5"
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{two b}
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15 "SELECT * FROM t1 UNION SELECT b, a FROM t1 LIMIT 10, 5"
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{}
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16 "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY a LIMIT 10"
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{a one b two c three one a three c two b}
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17 "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY b LIMIT 10 OFFSET 5"
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{b two}
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18 "SELECT * FROM t1 UNION SELECT b, a FROM t1 ORDER BY a,b LIMIT 10, 5"
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{}
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}
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#-------------------------------------------------------------------------
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# The following tests focus on FROM clause (join) processing.
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#
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# EVIDENCE-OF: R-16074-54196 If the FROM clause is omitted from a simple
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# SELECT statement, then the input data is implicitly a single row zero
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# columns wide
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#
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do_select_tests e_select-1.1 {
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1 "SELECT 'abc'" {abc}
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2 "SELECT 'abc' WHERE NULL" {}
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3 "SELECT NULL" {{}}
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4 "SELECT count(*)" {1}
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5 "SELECT count(*) WHERE 0" {0}
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6 "SELECT count(*) WHERE 1" {1}
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}
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# EVIDENCE-OF: R-45424-07352 If there is only a single table or subquery
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# in the FROM clause, then the input data used by the SELECT statement
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# is the contents of the named table.
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#
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# The results of the SELECT queries suggest that they are operating on the
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# contents of the table 'xx'.
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#
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do_execsql_test e_select-1.2.0 {
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CREATE TABLE xx(x, y);
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INSERT INTO xx VALUES('IiJlsIPepMuAhU', X'10B00B897A15BAA02E3F98DCE8F2');
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INSERT INTO xx VALUES(NULL, -16.87);
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INSERT INTO xx VALUES(-17.89, 'linguistically');
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} {}
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do_select_tests e_select-1.2 {
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1 "SELECT quote(x), quote(y) FROM xx" {
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'IiJlsIPepMuAhU' X'10B00B897A15BAA02E3F98DCE8F2'
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NULL -16.87
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-17.89 'linguistically'
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}
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2 "SELECT count(*), count(x), count(y) FROM xx" {3 2 3}
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3 "SELECT sum(x), sum(y) FROM xx" {-17.89 -16.87}
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}
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# EVIDENCE-OF: R-28355-09804 If there is more than one table or subquery
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# in FROM clause then the contents of all tables and/or subqueries are
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# joined into a single dataset for the simple SELECT statement to
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# operate on.
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#
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# There are more detailed tests for subsequent requirements that add
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# more detail to this idea. We just add a single test that shows that
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# data is coming from each of the three tables following the FROM clause
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# here to show that the statement, vague as it is, is not incorrect.
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#
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do_select_tests e_select-1.3 {
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1 "SELECT * FROM t1, t2, t3" {
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a one a I a 1 a one a I b 2 a one b II a 1
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a one b II b 2 a one c III a 1 a one c III b 2
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b two a I a 1 b two a I b 2 b two b II a 1
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b two b II b 2 b two c III a 1 b two c III b 2
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c three a I a 1 c three a I b 2 c three b II a 1
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c three b II b 2 c three c III a 1 c three c III b 2
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}
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}
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#
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# The following block of tests - e_select-1.4.* - test that the description
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# of cartesian joins in the SELECT documentation is consistent with SQLite.
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# In doing so, we test the following three requirements as a side-effect:
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#
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# EVIDENCE-OF: R-49872-03192 If the join-operator is "CROSS JOIN",
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# "INNER JOIN", "JOIN" or a comma (",") and there is no ON or USING
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# clause, then the result of the join is simply the cartesian product of
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# the left and right-hand datasets.
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#
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# The tests are built on this assertion. Really, they test that the output
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# of a CROSS JOIN, JOIN, INNER JOIN or "," join matches the expected result
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# of calculating the cartesian product of the left and right-hand datasets.
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#
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# EVIDENCE-OF: R-46256-57243 There is no difference between the "INNER
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# JOIN", "JOIN" and "," join operators.
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#
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# EVIDENCE-OF: R-25071-21202 The "CROSS JOIN" join operator produces the
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# same result as the "INNER JOIN", "JOIN" and "," operators
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#
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# All tests are run 4 times, with the only difference in each run being
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# which of the 4 equivalent cartesian product join operators are used.
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# Since the output data is the same in all cases, we consider that this
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# qualifies as testing the two statements above.
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#
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do_execsql_test e_select-1.4.0 {
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CREATE TABLE x1(a, b);
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CREATE TABLE x2(c, d, e);
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CREATE TABLE x3(f, g, h, i);
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-- x1: 3 rows, 2 columns
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INSERT INTO x1 VALUES(24, 'converging');
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INSERT INTO x1 VALUES(NULL, X'CB71');
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INSERT INTO x1 VALUES('blonds', 'proprietary');
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-- x2: 2 rows, 3 columns
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INSERT INTO x2 VALUES(-60.06, NULL, NULL);
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INSERT INTO x2 VALUES(-58, NULL, 1.21);
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-- x3: 5 rows, 4 columns
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INSERT INTO x3 VALUES(-39.24, NULL, 'encompass', -1);
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INSERT INTO x3 VALUES('presenting', 51, 'reformation', 'dignified');
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INSERT INTO x3 VALUES('conducting', -87.24, 37.56, NULL);
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INSERT INTO x3 VALUES('coldest', -96, 'dramatists', 82.3);
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INSERT INTO x3 VALUES('alerting', NULL, -93.79, NULL);
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} {}
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|
|
# EVIDENCE-OF: R-59089-25828 The columns of the cartesian product
|
|
# dataset are, in order, all the columns of the left-hand dataset
|
|
# followed by all the columns of the right-hand dataset.
|
|
#
|
|
do_join_test e_select-1.4.1.1 {
|
|
SELECT * FROM x1 %JOIN% x2 LIMIT 1
|
|
} [concat {24 converging} {-60.06 {} {}}]
|
|
|
|
do_join_test e_select-1.4.1.2 {
|
|
SELECT * FROM x2 %JOIN% x1 LIMIT 1
|
|
} [concat {-60.06 {} {}} {24 converging}]
|
|
|
|
do_join_test e_select-1.4.1.3 {
|
|
SELECT * FROM x3 %JOIN% x2 LIMIT 1
|
|
} [concat {-39.24 {} encompass -1} {-60.06 {} {}}]
|
|
|
|
do_join_test e_select-1.4.1.4 {
|
|
SELECT * FROM x2 %JOIN% x3 LIMIT 1
|
|
} [concat {-60.06 {} {}} {-39.24 {} encompass -1}]
|
|
|
|
# EVIDENCE-OF: R-44414-54710 There is a row in the cartesian product
|
|
# dataset formed by combining each unique combination of a row from the
|
|
# left-hand and right-hand datasets.
|
|
#
|
|
do_join_test e_select-1.4.2.1 {
|
|
SELECT * FROM x2 %JOIN% x3 ORDER BY +c, +f
|
|
} [list -60.06 {} {} -39.24 {} encompass -1 \
|
|
-60.06 {} {} alerting {} -93.79 {} \
|
|
-60.06 {} {} coldest -96 dramatists 82.3 \
|
|
-60.06 {} {} conducting -87.24 37.56 {} \
|
|
-60.06 {} {} presenting 51 reformation dignified \
|
|
-58 {} 1.21 -39.24 {} encompass -1 \
|
|
-58 {} 1.21 alerting {} -93.79 {} \
|
|
-58 {} 1.21 coldest -96 dramatists 82.3 \
|
|
-58 {} 1.21 conducting -87.24 37.56 {} \
|
|
-58 {} 1.21 presenting 51 reformation dignified \
|
|
]
|
|
# TODO: Come back and add a few more like the above.
|
|
|
|
# EVIDENCE-OF: R-18439-38548 In other words, if the left-hand dataset
|
|
# consists of Nleft rows of Mleft columns, and the right-hand dataset of
|
|
# Nright rows of Mright columns, then the cartesian product is a dataset
|
|
# of Nleft×Nright rows, each containing Mleft+Mright columns.
|
|
#
|
|
# x1, x2 (Nlhs=3, Nrhs=2) (Mlhs=2, Mrhs=3)
|
|
do_join_test e_select-1.4.3.1 {
|
|
SELECT count(*) FROM x1 %JOIN% x2
|
|
} [expr 3*2]
|
|
do_test e_select-1.4.3.2 {
|
|
expr {[llength [execsql {SELECT * FROM x1, x2}]] / 6}
|
|
} [expr 2+3]
|
|
|
|
# x2, x3 (Nlhs=2, Nrhs=5) (Mlhs=3, Mrhs=4)
|
|
do_join_test e_select-1.4.3.3 {
|
|
SELECT count(*) FROM x2 %JOIN% x3
|
|
} [expr 2*5]
|
|
do_test e_select-1.4.3.4 {
|
|
expr {[llength [execsql {SELECT * FROM x2 JOIN x3}]] / 10}
|
|
} [expr 3+4]
|
|
|
|
# x3, x1 (Nlhs=5, Nrhs=3) (Mlhs=4, Mrhs=2)
|
|
do_join_test e_select-1.4.3.5 {
|
|
SELECT count(*) FROM x3 %JOIN% x1
|
|
} [expr 5*3]
|
|
do_test e_select-1.4.3.6 {
|
|
expr {[llength [execsql {SELECT * FROM x3 CROSS JOIN x1}]] / 15}
|
|
} [expr 4+2]
|
|
|
|
# x3, x3 (Nlhs=5, Nrhs=5) (Mlhs=4, Mrhs=4)
|
|
do_join_test e_select-1.4.3.7 {
|
|
SELECT count(*) FROM x3 %JOIN% x3
|
|
} [expr 5*5]
|
|
do_test e_select-1.4.3.8 {
|
|
expr {[llength [execsql {SELECT * FROM x3 INNER JOIN x3 AS x4}]] / 25}
|
|
} [expr 4+4]
|
|
|
|
# Some extra cartesian product tests using tables t1 and t2.
|
|
#
|
|
do_execsql_test e_select-1.4.4.1 { SELECT * FROM t1, t2 } $t1_cross_t2
|
|
do_execsql_test e_select-1.4.4.2 { SELECT * FROM t1 AS x, t1 AS y} $t1_cross_t1
|
|
|
|
do_select_tests e_select-1.4.5 [list \
|
|
1 { SELECT * FROM t1 CROSS JOIN t2 } $t1_cross_t2 \
|
|
2 { SELECT * FROM t1 AS y CROSS JOIN t1 AS x } $t1_cross_t1 \
|
|
3 { SELECT * FROM t1 INNER JOIN t2 } $t1_cross_t2 \
|
|
4 { SELECT * FROM t1 AS y INNER JOIN t1 AS x } $t1_cross_t1 \
|
|
]
|
|
|
|
# EVIDENCE-OF: R-38465-03616 If there is an ON clause then the ON
|
|
# expression is evaluated for each row of the cartesian product as a
|
|
# boolean expression. Only rows for which the expression evaluates to
|
|
# true are included from the dataset.
|
|
#
|
|
foreach {tn select res} [list \
|
|
1 { SELECT * FROM t1 %JOIN% t2 ON (1) } $t1_cross_t2 \
|
|
2 { SELECT * FROM t1 %JOIN% t2 ON (0) } [list] \
|
|
3 { SELECT * FROM t1 %JOIN% t2 ON (NULL) } [list] \
|
|
4 { SELECT * FROM t1 %JOIN% t2 ON ('abc') } [list] \
|
|
5 { SELECT * FROM t1 %JOIN% t2 ON ('1ab') } $t1_cross_t2 \
|
|
6 { SELECT * FROM t1 %JOIN% t2 ON (0.9) } $t1_cross_t2 \
|
|
7 { SELECT * FROM t1 %JOIN% t2 ON ('0.9') } $t1_cross_t2 \
|
|
8 { SELECT * FROM t1 %JOIN% t2 ON (0.0) } [list] \
|
|
\
|
|
9 { SELECT t1.b, t2.b FROM t1 %JOIN% t2 ON (t1.a = t2.a) } \
|
|
{one I two II three III} \
|
|
10 { SELECT t1.b, t2.b FROM t1 %JOIN% t2 ON (t1.a = 'a') } \
|
|
{one I one II one III} \
|
|
11 { SELECT t1.b, t2.b
|
|
FROM t1 %JOIN% t2 ON (CASE WHEN t1.a = 'a' THEN NULL ELSE 1 END) } \
|
|
{two I two II two III three I three II three III} \
|
|
] {
|
|
do_join_test e_select-1.3.$tn $select $res
|
|
}
|
|
|
|
# EVIDENCE-OF: R-49933-05137 If there is a USING clause then each of the
|
|
# column names specified must exist in the datasets to both the left and
|
|
# right of the join-operator.
|
|
#
|
|
do_select_tests e_select-1.4 -error {
|
|
cannot join using column %s - column not present in both tables
|
|
} {
|
|
1 { SELECT * FROM t1, t3 USING (b) } "b"
|
|
2 { SELECT * FROM t3, t1 USING (c) } "c"
|
|
3 { SELECT * FROM t3, (SELECT a AS b, b AS c FROM t1) USING (a) } "a"
|
|
}
|
|
|
|
# EVIDENCE-OF: R-22776-52830 For each pair of named columns, the
|
|
# expression "lhs.X = rhs.X" is evaluated for each row of the cartesian
|
|
# product as a boolean expression. Only rows for which all such
|
|
# expressions evaluates to true are included from the result set.
|
|
#
|
|
do_select_tests e_select-1.5 {
|
|
1 { SELECT * FROM t1, t3 USING (a) } {a one 1 b two 2}
|
|
2 { SELECT * FROM t3, t4 USING (a,c) } {b 2}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-54046-48600 When comparing values as a result of a
|
|
# USING clause, the normal rules for handling affinities, collation
|
|
# sequences and NULL values in comparisons apply.
|
|
#
|
|
# EVIDENCE-OF: R-38422-04402 The column from the dataset on the
|
|
# left-hand side of the join-operator is considered to be on the
|
|
# left-hand side of the comparison operator (=) for the purposes of
|
|
# collation sequence and affinity precedence.
|
|
#
|
|
do_execsql_test e_select-1.6.0 {
|
|
CREATE TABLE t5(a COLLATE nocase, b COLLATE binary);
|
|
INSERT INTO t5 VALUES('AA', 'cc');
|
|
INSERT INTO t5 VALUES('BB', 'dd');
|
|
INSERT INTO t5 VALUES(NULL, NULL);
|
|
CREATE TABLE t6(a COLLATE binary, b COLLATE nocase);
|
|
INSERT INTO t6 VALUES('aa', 'cc');
|
|
INSERT INTO t6 VALUES('bb', 'DD');
|
|
INSERT INTO t6 VALUES(NULL, NULL);
|
|
} {}
|
|
foreach {tn select res} {
|
|
1 { SELECT * FROM t5 %JOIN% t6 USING (a) } {AA cc cc BB dd DD}
|
|
2 { SELECT * FROM t6 %JOIN% t5 USING (a) } {}
|
|
3 { SELECT * FROM (SELECT a COLLATE nocase, b FROM t6) %JOIN% t5 USING (a) }
|
|
{aa cc cc bb DD dd}
|
|
4 { SELECT * FROM t5 %JOIN% t6 USING (a,b) } {AA cc}
|
|
5 { SELECT * FROM t6 %JOIN% t5 USING (a,b) } {}
|
|
} {
|
|
do_join_test e_select-1.6.$tn $select $res
|
|
}
|
|
|
|
# EVIDENCE-OF: R-57047-10461 For each pair of columns identified by a
|
|
# USING clause, the column from the right-hand dataset is omitted from
|
|
# the joined dataset.
|
|
#
|
|
# EVIDENCE-OF: R-56132-15700 This is the only difference between a USING
|
|
# clause and its equivalent ON constraint.
|
|
#
|
|
foreach {tn select res} {
|
|
1a { SELECT * FROM t1 %JOIN% t2 USING (a) }
|
|
{a one I b two II c three III}
|
|
1b { SELECT * FROM t1 %JOIN% t2 ON (t1.a=t2.a) }
|
|
{a one a I b two b II c three c III}
|
|
|
|
2a { SELECT * FROM t3 %JOIN% t4 USING (a) }
|
|
{a 1 {} b 2 2}
|
|
2b { SELECT * FROM t3 %JOIN% t4 ON (t3.a=t4.a) }
|
|
{a 1 a {} b 2 b 2}
|
|
|
|
3a { SELECT * FROM t3 %JOIN% t4 USING (a,c) } {b 2}
|
|
3b { SELECT * FROM t3 %JOIN% t4 ON (t3.a=t4.a AND t3.c=t4.c) } {b 2 b 2}
|
|
|
|
4a { SELECT * FROM (SELECT a COLLATE nocase, b FROM t6) AS x
|
|
%JOIN% t5 USING (a) }
|
|
{aa cc cc bb DD dd}
|
|
4b { SELECT * FROM (SELECT a COLLATE nocase, b FROM t6) AS x
|
|
%JOIN% t5 ON (x.a=t5.a) }
|
|
{aa cc AA cc bb DD BB dd}
|
|
} {
|
|
do_join_test e_select-1.7.$tn $select $res
|
|
}
|
|
|
|
# EVIDENCE-OF: R-24610-05866 If the join-operator is a "LEFT JOIN" or
|
|
# "LEFT OUTER JOIN", then after the ON or USING filtering clauses have
|
|
# been applied, an extra row is added to the output for each row in the
|
|
# original left-hand input dataset that does not match any row in the
|
|
# right-hand dataset.
|
|
#
|
|
do_execsql_test e_select-1.8.0 {
|
|
CREATE TABLE t7(a, b, c);
|
|
CREATE TABLE t8(a, d, e);
|
|
|
|
INSERT INTO t7 VALUES('x', 'ex', 24);
|
|
INSERT INTO t7 VALUES('y', 'why', 25);
|
|
|
|
INSERT INTO t8 VALUES('x', 'abc', 24);
|
|
INSERT INTO t8 VALUES('z', 'ghi', 26);
|
|
} {}
|
|
|
|
do_select_tests e_select-1.8 {
|
|
1a "SELECT count(*) FROM t7 JOIN t8 ON (t7.a=t8.a)" {1}
|
|
1b "SELECT count(*) FROM t7 LEFT JOIN t8 ON (t7.a=t8.a)" {2}
|
|
2a "SELECT count(*) FROM t7 JOIN t8 USING (a)" {1}
|
|
2b "SELECT count(*) FROM t7 LEFT JOIN t8 USING (a)" {2}
|
|
}
|
|
|
|
|
|
# EVIDENCE-OF: R-15607-52988 The added rows contain NULL values in the
|
|
# columns that would normally contain values copied from the right-hand
|
|
# input dataset.
|
|
#
|
|
do_select_tests e_select-1.9 {
|
|
1a "SELECT * FROM t7 JOIN t8 ON (t7.a=t8.a)" {x ex 24 x abc 24}
|
|
1b "SELECT * FROM t7 LEFT JOIN t8 ON (t7.a=t8.a)"
|
|
{x ex 24 x abc 24 y why 25 {} {} {}}
|
|
2a "SELECT * FROM t7 JOIN t8 USING (a)" {x ex 24 abc 24}
|
|
2b "SELECT * FROM t7 LEFT JOIN t8 USING (a)" {x ex 24 abc 24 y why 25 {} {}}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-04932-55942 If the NATURAL keyword is in the
|
|
# join-operator then an implicit USING clause is added to the
|
|
# join-constraints. The implicit USING clause contains each of the
|
|
# column names that appear in both the left and right-hand input
|
|
# datasets.
|
|
#
|
|
do_select_tests e_select-1-10 {
|
|
1a "SELECT * FROM t7 JOIN t8 USING (a)" {x ex 24 abc 24}
|
|
1b "SELECT * FROM t7 NATURAL JOIN t8" {x ex 24 abc 24}
|
|
|
|
2a "SELECT * FROM t8 JOIN t7 USING (a)" {x abc 24 ex 24}
|
|
2b "SELECT * FROM t8 NATURAL JOIN t7" {x abc 24 ex 24}
|
|
|
|
3a "SELECT * FROM t7 LEFT JOIN t8 USING (a)" {x ex 24 abc 24 y why 25 {} {}}
|
|
3b "SELECT * FROM t7 NATURAL LEFT JOIN t8" {x ex 24 abc 24 y why 25 {} {}}
|
|
|
|
4a "SELECT * FROM t8 LEFT JOIN t7 USING (a)" {x abc 24 ex 24 z ghi 26 {} {}}
|
|
4b "SELECT * FROM t8 NATURAL LEFT JOIN t7" {x abc 24 ex 24 z ghi 26 {} {}}
|
|
|
|
5a "SELECT * FROM t3 JOIN t4 USING (a,c)" {b 2}
|
|
5b "SELECT * FROM t3 NATURAL JOIN t4" {b 2}
|
|
|
|
6a "SELECT * FROM t3 LEFT JOIN t4 USING (a,c)" {a 1 b 2}
|
|
6b "SELECT * FROM t3 NATURAL LEFT JOIN t4" {a 1 b 2}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-49566-01570 If the left and right-hand input datasets
|
|
# feature no common column names, then the NATURAL keyword has no effect
|
|
# on the results of the join.
|
|
#
|
|
do_execsql_test e_select-1.11.0 {
|
|
CREATE TABLE t10(x, y);
|
|
INSERT INTO t10 VALUES(1, 'true');
|
|
INSERT INTO t10 VALUES(0, 'false');
|
|
} {}
|
|
do_select_tests e_select-1-11 {
|
|
1a "SELECT a, x FROM t1 CROSS JOIN t10" {a 1 a 0 b 1 b 0 c 1 c 0}
|
|
1b "SELECT a, x FROM t1 NATURAL CROSS JOIN t10" {a 1 a 0 b 1 b 0 c 1 c 0}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-39625-59133 A USING or ON clause may not be added to a
|
|
# join that specifies the NATURAL keyword.
|
|
#
|
|
foreach {tn sql} {
|
|
1 {SELECT * FROM t1 NATURAL LEFT JOIN t2 USING (a)}
|
|
2 {SELECT * FROM t1 NATURAL LEFT JOIN t2 ON (t1.a=t2.a)}
|
|
3 {SELECT * FROM t1 NATURAL LEFT JOIN t2 ON (45)}
|
|
} {
|
|
do_catchsql_test e_select-1.12.$tn "
|
|
$sql
|
|
" {1 {a NATURAL join may not have an ON or USING clause}}
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# The next block of tests - e_select-3.* - concentrate on verifying
|
|
# statements made regarding WHERE clause processing.
|
|
#
|
|
drop_all_tables
|
|
do_execsql_test e_select-3.0 {
|
|
CREATE TABLE x1(k, x, y, z);
|
|
INSERT INTO x1 VALUES(1, 'relinquished', 'aphasia', 78.43);
|
|
INSERT INTO x1 VALUES(2, X'A8E8D66F', X'07CF', -81);
|
|
INSERT INTO x1 VALUES(3, -22, -27.57, NULL);
|
|
INSERT INTO x1 VALUES(4, NULL, 'bygone', 'picky');
|
|
INSERT INTO x1 VALUES(5, NULL, 96.28, NULL);
|
|
INSERT INTO x1 VALUES(6, 0, 1, 2);
|
|
|
|
CREATE TABLE x2(k, x, y2);
|
|
INSERT INTO x2 VALUES(1, 50, X'B82838');
|
|
INSERT INTO x2 VALUES(5, 84.79, 65.88);
|
|
INSERT INTO x2 VALUES(3, -22, X'0E1BE452A393');
|
|
INSERT INTO x2 VALUES(7, 'mistrusted', 'standardized');
|
|
} {}
|
|
|
|
# EVIDENCE-OF: R-60775-64916 If a WHERE clause is specified, the WHERE
|
|
# expression is evaluated for each row in the input data as a boolean
|
|
# expression. Only rows for which the WHERE clause expression evaluates
|
|
# to true are included from the dataset before continuing.
|
|
#
|
|
do_execsql_test e_select-3.1.1 { SELECT k FROM x1 WHERE x } {3}
|
|
do_execsql_test e_select-3.1.2 { SELECT k FROM x1 WHERE y } {3 5 6}
|
|
do_execsql_test e_select-3.1.3 { SELECT k FROM x1 WHERE z } {1 2 6}
|
|
do_execsql_test e_select-3.1.4 { SELECT k FROM x1 WHERE '1'||z } {1 2 4 6}
|
|
do_execsql_test e_select-3.1.5 { SELECT k FROM x1 WHERE x IS NULL } {4 5}
|
|
do_execsql_test e_select-3.1.6 { SELECT k FROM x1 WHERE z - 78.43 } {2 4 6}
|
|
|
|
do_execsql_test e_select-3.2.1a {
|
|
SELECT k FROM x1 LEFT JOIN x2 USING(k)
|
|
} {1 2 3 4 5 6}
|
|
do_execsql_test e_select-3.2.1b {
|
|
SELECT k FROM x1 LEFT JOIN x2 USING(k) WHERE x2.k ORDER BY +k
|
|
} {1 3 5}
|
|
do_execsql_test e_select-3.2.2 {
|
|
SELECT k FROM x1 LEFT JOIN x2 USING(k) WHERE x2.k IS NULL
|
|
} {2 4 6}
|
|
|
|
do_execsql_test e_select-3.2.3 {
|
|
SELECT k FROM x1 NATURAL JOIN x2 WHERE x2.k
|
|
} {3}
|
|
do_execsql_test e_select-3.2.4 {
|
|
SELECT k FROM x1 NATURAL JOIN x2 WHERE x2.k-3
|
|
} {}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Tests below this point are focused on verifying the testable statements
|
|
# related to caculating the result rows of a simple SELECT statement.
|
|
#
|
|
|
|
drop_all_tables
|
|
do_execsql_test e_select-4.0 {
|
|
CREATE TABLE z1(a, b, c);
|
|
CREATE TABLE z2(d, e);
|
|
CREATE TABLE z3(a, b);
|
|
|
|
INSERT INTO z1 VALUES(51.65, -59.58, 'belfries');
|
|
INSERT INTO z1 VALUES(-5, NULL, 75);
|
|
INSERT INTO z1 VALUES(-2.2, -23.18, 'suiters');
|
|
INSERT INTO z1 VALUES(NULL, 67, 'quartets');
|
|
INSERT INTO z1 VALUES(-1.04, -32.3, 'aspen');
|
|
INSERT INTO z1 VALUES(63, 'born', -26);
|
|
|
|
INSERT INTO z2 VALUES(NULL, 21);
|
|
INSERT INTO z2 VALUES(36, 6);
|
|
|
|
INSERT INTO z3 VALUES('subsistence', 'gauze');
|
|
INSERT INTO z3 VALUES(49.17, -67);
|
|
} {}
|
|
|
|
# EVIDENCE-OF: R-36327-17224 If a result expression is the special
|
|
# expression "*" then all columns in the input data are substituted for
|
|
# that one expression.
|
|
#
|
|
# EVIDENCE-OF: R-43693-30522 If the expression is the alias of a table
|
|
# or subquery in the FROM clause followed by ".*" then all columns from
|
|
# the named table or subquery are substituted for the single expression.
|
|
#
|
|
do_select_tests e_select-4.1 {
|
|
1 "SELECT * FROM z1 LIMIT 1" {51.65 -59.58 belfries}
|
|
2 "SELECT * FROM z1,z2 LIMIT 1" {51.65 -59.58 belfries {} 21}
|
|
3 "SELECT z1.* FROM z1,z2 LIMIT 1" {51.65 -59.58 belfries}
|
|
4 "SELECT z2.* FROM z1,z2 LIMIT 1" {{} 21}
|
|
5 "SELECT z2.*, z1.* FROM z1,z2 LIMIT 1" {{} 21 51.65 -59.58 belfries}
|
|
|
|
6 "SELECT count(*), * FROM z1" {6 51.65 -59.58 belfries}
|
|
7 "SELECT max(a), * FROM z1" {63 63 born -26}
|
|
8 "SELECT *, min(a) FROM z1" {-5 {} 75 -5}
|
|
|
|
9 "SELECT *,* FROM z1,z2 LIMIT 1" {
|
|
51.65 -59.58 belfries {} 21 51.65 -59.58 belfries {} 21
|
|
}
|
|
10 "SELECT z1.*,z1.* FROM z2,z1 LIMIT 1" {
|
|
51.65 -59.58 belfries 51.65 -59.58 belfries
|
|
}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-38023-18396 It is an error to use a "*" or "alias.*"
|
|
# expression in any context other than a result expression list.
|
|
#
|
|
# EVIDENCE-OF: R-44324-41166 It is also an error to use a "*" or
|
|
# "alias.*" expression in a simple SELECT query that does not have a
|
|
# FROM clause.
|
|
#
|
|
foreach {tn select err} {
|
|
1.1 "SELECT a, b, c FROM z1 WHERE *" {near "*": syntax error}
|
|
1.2 "SELECT a, b, c FROM z1 GROUP BY *" {near "*": syntax error}
|
|
1.3 "SELECT 1 + * FROM z1" {near "*": syntax error}
|
|
1.4 "SELECT * + 1 FROM z1" {near "+": syntax error}
|
|
|
|
2.1 "SELECT *" {no tables specified}
|
|
2.2 "SELECT * WHERE 1" {no tables specified}
|
|
2.3 "SELECT * WHERE 0" {no tables specified}
|
|
2.4 "SELECT count(*), *" {no tables specified}
|
|
} {
|
|
do_catchsql_test e_select-4.2.$tn $select [list 1 $err]
|
|
}
|
|
|
|
# EVIDENCE-OF: R-08669-22397 The number of columns in the rows returned
|
|
# by a simple SELECT statement is equal to the number of expressions in
|
|
# the result expression list after substitution of * and alias.*
|
|
# expressions.
|
|
#
|
|
foreach {tn select nCol} {
|
|
1 "SELECT * FROM z1" 3
|
|
2 "SELECT * FROM z1 NATURAL JOIN z3" 3
|
|
3 "SELECT z1.* FROM z1 NATURAL JOIN z3" 3
|
|
4 "SELECT z3.* FROM z1 NATURAL JOIN z3" 2
|
|
5 "SELECT z1.*, z3.* FROM z1 NATURAL JOIN z3" 5
|
|
6 "SELECT 1, 2, z1.* FROM z1" 5
|
|
7 "SELECT a, *, b, c FROM z1" 6
|
|
} {
|
|
set ::stmt [sqlite3_prepare_v2 db $select -1 DUMMY]
|
|
do_test e_select-4.3.$tn { sqlite3_column_count $::stmt } $nCol
|
|
sqlite3_finalize $::stmt
|
|
}
|
|
|
|
|
|
|
|
# In lang_select.html, a non-aggregate query is defined as any simple SELECT
|
|
# that has no GROUP BY clause and no aggregate expressions in the result
|
|
# expression list. Other queries are aggregate queries. Test cases
|
|
# e_select-4.4.* through e_select-4.12.*, inclusive, which test the part of
|
|
# simple SELECT that is different for aggregate and non-aggregate queries
|
|
# verify (in a way) that these definitions are consistent:
|
|
#
|
|
# EVIDENCE-OF: R-20637-43463 A simple SELECT statement is an aggregate
|
|
# query if it contains either a GROUP BY clause or one or more aggregate
|
|
# functions in the result-set.
|
|
#
|
|
# EVIDENCE-OF: R-23155-55597 Otherwise, if a simple SELECT contains no
|
|
# aggregate functions or a GROUP BY clause, it is a non-aggregate query.
|
|
#
|
|
|
|
# EVIDENCE-OF: R-44050-47362 If the SELECT statement is a non-aggregate
|
|
# query, then each expression in the result expression list is evaluated
|
|
# for each row in the dataset filtered by the WHERE clause.
|
|
#
|
|
do_select_tests e_select-4.4 {
|
|
1 "SELECT a, b FROM z1"
|
|
{51.65 -59.58 -5 {} -2.2 -23.18 {} 67 -1.04 -32.3 63 born}
|
|
|
|
2 "SELECT a IS NULL, b+1, * FROM z1" {
|
|
0 -58.58 51.65 -59.58 belfries
|
|
0 {} -5 {} 75
|
|
0 -22.18 -2.2 -23.18 suiters
|
|
1 68 {} 67 quartets
|
|
0 -31.3 -1.04 -32.3 aspen
|
|
0 1 63 born -26
|
|
}
|
|
|
|
3 "SELECT 32*32, d||e FROM z2" {1024 {} 1024 366}
|
|
}
|
|
|
|
|
|
# Test cases e_select-4.5.* and e_select-4.6.* together show that:
|
|
#
|
|
# EVIDENCE-OF: R-51988-01124 The single row of result-set data created
|
|
# by evaluating the aggregate and non-aggregate expressions in the
|
|
# result-set forms the result of an aggregate query without a GROUP BY
|
|
# clause.
|
|
#
|
|
|
|
# EVIDENCE-OF: R-57629-25253 If the SELECT statement is an aggregate
|
|
# query without a GROUP BY clause, then each aggregate expression in the
|
|
# result-set is evaluated once across the entire dataset.
|
|
#
|
|
do_select_tests e_select-4.5 {
|
|
1 "SELECT count(a), max(a), count(b), max(b) FROM z1" {5 63 5 born}
|
|
2 "SELECT count(*), max(1)" {1 1}
|
|
|
|
3 "SELECT sum(b+1) FROM z1 NATURAL LEFT JOIN z3" {-43.06}
|
|
4 "SELECT sum(b+2) FROM z1 NATURAL LEFT JOIN z3" {-38.06}
|
|
5 "SELECT sum(b IS NOT NULL) FROM z1 NATURAL LEFT JOIN z3" {5}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-26684-40576 Each non-aggregate expression in the
|
|
# result-set is evaluated once for an arbitrarily selected row of the
|
|
# dataset.
|
|
#
|
|
# EVIDENCE-OF: R-27994-60376 The same arbitrarily selected row is used
|
|
# for each non-aggregate expression.
|
|
#
|
|
# Note: The results of many of the queries in this block of tests are
|
|
# technically undefined, as the documentation does not specify which row
|
|
# SQLite will arbitrarily select to use for the evaluation of the
|
|
# non-aggregate expressions.
|
|
#
|
|
drop_all_tables
|
|
do_execsql_test e_select-4.6.0 {
|
|
CREATE TABLE a1(one PRIMARY KEY, two);
|
|
INSERT INTO a1 VALUES(1, 1);
|
|
INSERT INTO a1 VALUES(2, 3);
|
|
INSERT INTO a1 VALUES(3, 6);
|
|
INSERT INTO a1 VALUES(4, 10);
|
|
|
|
CREATE TABLE a2(one PRIMARY KEY, three);
|
|
INSERT INTO a2 VALUES(1, 1);
|
|
INSERT INTO a2 VALUES(3, 2);
|
|
INSERT INTO a2 VALUES(6, 3);
|
|
INSERT INTO a2 VALUES(10, 4);
|
|
} {}
|
|
do_select_tests e_select-4.6 {
|
|
1 "SELECT one, two, count(*) FROM a1" {1 1 4}
|
|
2 "SELECT one, two, count(*) FROM a1 WHERE one<3" {1 1 2}
|
|
3 "SELECT one, two, count(*) FROM a1 WHERE one>3" {4 10 1}
|
|
4 "SELECT *, count(*) FROM a1 JOIN a2" {1 1 1 1 16}
|
|
5 "SELECT *, sum(three) FROM a1 NATURAL JOIN a2" {1 1 1 3}
|
|
6 "SELECT *, sum(three) FROM a1 NATURAL JOIN a2" {1 1 1 3}
|
|
7 "SELECT group_concat(three, ''), a1.* FROM a1 NATURAL JOIN a2" {12 1 1}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-04486-07266 Or, if the dataset contains zero rows, then
|
|
# each non-aggregate expression is evaluated against a row consisting
|
|
# entirely of NULL values.
|
|
#
|
|
do_select_tests e_select-4.7 {
|
|
1 "SELECT one, two, count(*) FROM a1 WHERE 0" {{} {} 0}
|
|
2 "SELECT sum(two), * FROM a1, a2 WHERE three>5" {{} {} {} {} {}}
|
|
3 "SELECT max(one) IS NULL, one IS NULL, two IS NULL FROM a1 WHERE two=7" {
|
|
1 1 1
|
|
}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-64138-28774 An aggregate query without a GROUP BY
|
|
# clause always returns exactly one row of data, even if there are zero
|
|
# rows of input data.
|
|
#
|
|
foreach {tn select} {
|
|
8.1 "SELECT count(*) FROM a1"
|
|
8.2 "SELECT count(*) FROM a1 WHERE 0"
|
|
8.3 "SELECT count(*) FROM a1 WHERE 1"
|
|
8.4 "SELECT max(a1.one)+min(two), a1.one, two, * FROM a1, a2 WHERE 1"
|
|
8.5 "SELECT max(a1.one)+min(two), a1.one, two, * FROM a1, a2 WHERE 0"
|
|
} {
|
|
# Set $nRow to the number of rows returned by $select:
|
|
set ::stmt [sqlite3_prepare_v2 db $select -1 DUMMY]
|
|
set nRow 0
|
|
while {"SQLITE_ROW" == [sqlite3_step $::stmt]} { incr nRow }
|
|
set rc [sqlite3_finalize $::stmt]
|
|
|
|
# Test that $nRow==1 and that statement execution was successful
|
|
# (rc==SQLITE_OK).
|
|
do_test e_select-4.$tn [list list $rc $nRow] {SQLITE_OK 1}
|
|
}
|
|
|
|
drop_all_tables
|
|
do_execsql_test e_select-4.9.0 {
|
|
CREATE TABLE b1(one PRIMARY KEY, two);
|
|
INSERT INTO b1 VALUES(1, 'o');
|
|
INSERT INTO b1 VALUES(4, 'f');
|
|
INSERT INTO b1 VALUES(3, 't');
|
|
INSERT INTO b1 VALUES(2, 't');
|
|
INSERT INTO b1 VALUES(5, 'f');
|
|
INSERT INTO b1 VALUES(7, 's');
|
|
INSERT INTO b1 VALUES(6, 's');
|
|
|
|
CREATE TABLE b2(x, y);
|
|
INSERT INTO b2 VALUES(NULL, 0);
|
|
INSERT INTO b2 VALUES(NULL, 1);
|
|
INSERT INTO b2 VALUES('xyz', 2);
|
|
INSERT INTO b2 VALUES('abc', 3);
|
|
INSERT INTO b2 VALUES('xyz', 4);
|
|
|
|
CREATE TABLE b3(a COLLATE nocase, b COLLATE binary);
|
|
INSERT INTO b3 VALUES('abc', 'abc');
|
|
INSERT INTO b3 VALUES('aBC', 'aBC');
|
|
INSERT INTO b3 VALUES('Def', 'Def');
|
|
INSERT INTO b3 VALUES('dEF', 'dEF');
|
|
} {}
|
|
|
|
# EVIDENCE-OF: R-40855-36147 If the SELECT statement is an aggregate
|
|
# query with a GROUP BY clause, then each of the expressions specified
|
|
# as part of the GROUP BY clause is evaluated for each row of the
|
|
# dataset according to the processing rules stated below for ORDER BY
|
|
# expressions. Each row is then assigned to a "group" based on the
|
|
# results; rows for which the results of evaluating the GROUP BY
|
|
# expressions are the same get assigned to the same group.
|
|
#
|
|
# These tests also show that the following is not untrue:
|
|
#
|
|
# EVIDENCE-OF: R-25883-55063 The expressions in the GROUP BY clause do
|
|
# not have to be expressions that appear in the result.
|
|
#
|
|
do_select_tests e_select-4.9 {
|
|
1 "SELECT group_concat(one), two FROM b1 GROUP BY two" {
|
|
/#,# f 1 o #,# s #,# t/
|
|
}
|
|
2 "SELECT group_concat(one), sum(one) FROM b1 GROUP BY (one>4)" {
|
|
1,2,3,4 10 5,6,7 18
|
|
}
|
|
3 "SELECT group_concat(one) FROM b1 GROUP BY (two>'o'), one%2" {
|
|
4 1,5 2,6 3,7
|
|
}
|
|
4 "SELECT group_concat(one) FROM b1 GROUP BY (one==2 OR two=='o')" {
|
|
4,3,5,7,6 1,2
|
|
}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-14926-50129 For the purposes of grouping rows, NULL
|
|
# values are considered equal.
|
|
#
|
|
do_select_tests e_select-4.10 {
|
|
1 "SELECT group_concat(y) FROM b2 GROUP BY x" {/#,# 3 #,#/}
|
|
2 "SELECT count(*) FROM b2 GROUP BY CASE WHEN y<4 THEN NULL ELSE 0 END" {4 1}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-10470-30318 The usual rules for selecting a collation
|
|
# sequence with which to compare text values apply when evaluating
|
|
# expressions in a GROUP BY clause.
|
|
#
|
|
do_select_tests e_select-4.11 {
|
|
1 "SELECT count(*) FROM b3 GROUP BY b" {1 1 1 1}
|
|
2 "SELECT count(*) FROM b3 GROUP BY a" {2 2}
|
|
3 "SELECT count(*) FROM b3 GROUP BY +b" {1 1 1 1}
|
|
4 "SELECT count(*) FROM b3 GROUP BY +a" {2 2}
|
|
5 "SELECT count(*) FROM b3 GROUP BY b||''" {1 1 1 1}
|
|
6 "SELECT count(*) FROM b3 GROUP BY a||''" {1 1 1 1}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-63573-50730 The expressions in a GROUP BY clause may
|
|
# not be aggregate expressions.
|
|
#
|
|
foreach {tn select} {
|
|
12.1 "SELECT * FROM b3 GROUP BY count(*)"
|
|
12.2 "SELECT max(a) FROM b3 GROUP BY max(b)"
|
|
12.3 "SELECT group_concat(a) FROM b3 GROUP BY a, max(b)"
|
|
} {
|
|
set res {1 {aggregate functions are not allowed in the GROUP BY clause}}
|
|
do_catchsql_test e_select-4.$tn $select $res
|
|
}
|
|
|
|
# EVIDENCE-OF: R-31537-00101 If a HAVING clause is specified, it is
|
|
# evaluated once for each group of rows as a boolean expression. If the
|
|
# result of evaluating the HAVING clause is false, the group is
|
|
# discarded.
|
|
#
|
|
# This requirement is tested by all e_select-4.13.* tests.
|
|
#
|
|
# EVIDENCE-OF: R-04132-09474 If the HAVING clause is an aggregate
|
|
# expression, it is evaluated across all rows in the group.
|
|
#
|
|
# Tested by e_select-4.13.1.*
|
|
#
|
|
# EVIDENCE-OF: R-28262-47447 If a HAVING clause is a non-aggregate
|
|
# expression, it is evaluated with respect to an arbitrarily selected
|
|
# row from the group.
|
|
#
|
|
# Tested by e_select-4.13.2.*
|
|
#
|
|
# Tests in this block also show that this is not untrue:
|
|
#
|
|
# EVIDENCE-OF: R-55403-13450 The HAVING expression may refer to values,
|
|
# even aggregate functions, that are not in the result.
|
|
#
|
|
do_execsql_test e_select-4.13.0 {
|
|
CREATE TABLE c1(up, down);
|
|
INSERT INTO c1 VALUES('x', 1);
|
|
INSERT INTO c1 VALUES('x', 2);
|
|
INSERT INTO c1 VALUES('x', 4);
|
|
INSERT INTO c1 VALUES('x', 8);
|
|
INSERT INTO c1 VALUES('y', 16);
|
|
INSERT INTO c1 VALUES('y', 32);
|
|
|
|
CREATE TABLE c2(i, j);
|
|
INSERT INTO c2 VALUES(1, 0);
|
|
INSERT INTO c2 VALUES(2, 1);
|
|
INSERT INTO c2 VALUES(3, 3);
|
|
INSERT INTO c2 VALUES(4, 6);
|
|
INSERT INTO c2 VALUES(5, 10);
|
|
INSERT INTO c2 VALUES(6, 15);
|
|
INSERT INTO c2 VALUES(7, 21);
|
|
INSERT INTO c2 VALUES(8, 28);
|
|
INSERT INTO c2 VALUES(9, 36);
|
|
|
|
CREATE TABLE c3(i PRIMARY KEY, k TEXT);
|
|
INSERT INTO c3 VALUES(1, 'hydrogen');
|
|
INSERT INTO c3 VALUES(2, 'helium');
|
|
INSERT INTO c3 VALUES(3, 'lithium');
|
|
INSERT INTO c3 VALUES(4, 'beryllium');
|
|
INSERT INTO c3 VALUES(5, 'boron');
|
|
INSERT INTO c3 VALUES(94, 'plutonium');
|
|
} {}
|
|
|
|
do_select_tests e_select-4.13 {
|
|
1.1 "SELECT up FROM c1 GROUP BY up HAVING count(*)>3" {x}
|
|
1.2 "SELECT up FROM c1 GROUP BY up HAVING sum(down)>16" {y}
|
|
1.3 "SELECT up FROM c1 GROUP BY up HAVING sum(down)<16" {x}
|
|
1.4 "SELECT up||down FROM c1 GROUP BY (down<5) HAVING max(down)<10" {x4}
|
|
|
|
2.1 "SELECT up FROM c1 GROUP BY up HAVING down>10" {y}
|
|
2.2 "SELECT up FROM c1 GROUP BY up HAVING up='y'" {y}
|
|
|
|
2.3 "SELECT i, j FROM c2 GROUP BY i>4 HAVING j>6" {5 10}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-23927-54081 Each expression in the result-set is then
|
|
# evaluated once for each group of rows.
|
|
#
|
|
# EVIDENCE-OF: R-53735-47017 If the expression is an aggregate
|
|
# expression, it is evaluated across all rows in the group.
|
|
#
|
|
do_select_tests e_select-4.15 {
|
|
1 "SELECT sum(down) FROM c1 GROUP BY up" {15 48}
|
|
2 "SELECT sum(j), max(j) FROM c2 GROUP BY (i%3)" {54 36 27 21 39 28}
|
|
3 "SELECT sum(j), max(j) FROM c2 GROUP BY (j%2)" {80 36 40 21}
|
|
4 "SELECT 1+sum(j), max(j)+1 FROM c2 GROUP BY (j%2)" {81 37 41 22}
|
|
5 "SELECT count(*), round(avg(i),2) FROM c1, c2 ON (i=down) GROUP BY j%2"
|
|
{3 4.33 1 2.0}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-62913-19830 Otherwise, it is evaluated against a single
|
|
# arbitrarily chosen row from within the group.
|
|
#
|
|
# EVIDENCE-OF: R-53924-08809 If there is more than one non-aggregate
|
|
# expression in the result-set, then all such expressions are evaluated
|
|
# for the same row.
|
|
#
|
|
do_select_tests e_select-4.15 {
|
|
1 "SELECT i, j FROM c2 GROUP BY i%2" {2 1 1 0}
|
|
2 "SELECT i, j FROM c2 GROUP BY i%2 HAVING j<30" {2 1 1 0}
|
|
3 "SELECT i, j FROM c2 GROUP BY i%2 HAVING j>30" {}
|
|
4 "SELECT i, j FROM c2 GROUP BY i%2 HAVING j>30" {}
|
|
5 "SELECT count(*), i, k FROM c2 NATURAL JOIN c3 GROUP BY substr(k, 1, 1)"
|
|
{2 4 beryllium 2 1 hydrogen 1 3 lithium}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-19334-12811 Each group of input dataset rows
|
|
# contributes a single row to the set of result rows.
|
|
#
|
|
# EVIDENCE-OF: R-02223-49279 Subject to filtering associated with the
|
|
# DISTINCT keyword, the number of rows returned by an aggregate query
|
|
# with a GROUP BY clause is the same as the number of groups of rows
|
|
# produced by applying the GROUP BY and HAVING clauses to the filtered
|
|
# input dataset.
|
|
#
|
|
do_select_tests e_select.4.16 -count {
|
|
1 "SELECT i, j FROM c2 GROUP BY i%2" 2
|
|
2 "SELECT i, j FROM c2 GROUP BY i" 9
|
|
3 "SELECT i, j FROM c2 GROUP BY i HAVING i<5" 4
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# The following tests attempt to verify statements made regarding the ALL
|
|
# and DISTINCT keywords.
|
|
#
|
|
drop_all_tables
|
|
do_execsql_test e_select-5.1.0 {
|
|
CREATE TABLE h1(a, b);
|
|
INSERT INTO h1 VALUES(1, 'one');
|
|
INSERT INTO h1 VALUES(1, 'I');
|
|
INSERT INTO h1 VALUES(1, 'i');
|
|
INSERT INTO h1 VALUES(4, 'four');
|
|
INSERT INTO h1 VALUES(4, 'IV');
|
|
INSERT INTO h1 VALUES(4, 'iv');
|
|
|
|
CREATE TABLE h2(x COLLATE nocase);
|
|
INSERT INTO h2 VALUES('One');
|
|
INSERT INTO h2 VALUES('Two');
|
|
INSERT INTO h2 VALUES('Three');
|
|
INSERT INTO h2 VALUES('Four');
|
|
INSERT INTO h2 VALUES('one');
|
|
INSERT INTO h2 VALUES('two');
|
|
INSERT INTO h2 VALUES('three');
|
|
INSERT INTO h2 VALUES('four');
|
|
|
|
CREATE TABLE h3(c, d);
|
|
INSERT INTO h3 VALUES(1, NULL);
|
|
INSERT INTO h3 VALUES(2, NULL);
|
|
INSERT INTO h3 VALUES(3, NULL);
|
|
INSERT INTO h3 VALUES(4, '2');
|
|
INSERT INTO h3 VALUES(5, NULL);
|
|
INSERT INTO h3 VALUES(6, '2,3');
|
|
INSERT INTO h3 VALUES(7, NULL);
|
|
INSERT INTO h3 VALUES(8, '2,4');
|
|
INSERT INTO h3 VALUES(9, '3');
|
|
} {}
|
|
|
|
# EVIDENCE-OF: R-60770-10612 One of the ALL or DISTINCT keywords may
|
|
# follow the SELECT keyword in a simple SELECT statement.
|
|
#
|
|
do_select_tests e_select-5.1 {
|
|
1 "SELECT ALL a FROM h1" {1 1 1 4 4 4}
|
|
2 "SELECT DISTINCT a FROM h1" {1 4}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-08861-34280 If the simple SELECT is a SELECT ALL, then
|
|
# the entire set of result rows are returned by the SELECT.
|
|
#
|
|
# EVIDENCE-OF: R-01256-01950 If neither ALL or DISTINCT are present,
|
|
# then the behavior is as if ALL were specified.
|
|
#
|
|
# EVIDENCE-OF: R-14442-41305 If the simple SELECT is a SELECT DISTINCT,
|
|
# then duplicate rows are removed from the set of result rows before it
|
|
# is returned.
|
|
#
|
|
# The three testable statements above are tested by e_select-5.2.*,
|
|
# 5.3.* and 5.4.* respectively.
|
|
#
|
|
do_select_tests e_select-5 {
|
|
3.1 "SELECT ALL x FROM h2" {One Two Three Four one two three four}
|
|
3.2 "SELECT ALL x FROM h1, h2 ON (x=b)" {One one Four four}
|
|
|
|
3.1 "SELECT x FROM h2" {One Two Three Four one two three four}
|
|
3.2 "SELECT x FROM h1, h2 ON (x=b)" {One one Four four}
|
|
|
|
4.1 "SELECT DISTINCT x FROM h2" {One Two Three Four}
|
|
4.2 "SELECT DISTINCT x FROM h1, h2 ON (x=b)" {One Four}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-02054-15343 For the purposes of detecting duplicate
|
|
# rows, two NULL values are considered to be equal.
|
|
#
|
|
do_select_tests e_select-5.5 {
|
|
1 "SELECT DISTINCT d FROM h3" {{} 2 2,3 2,4 3}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-47709-27231 The usual rules apply for selecting a
|
|
# collation sequence to compare text values.
|
|
#
|
|
do_select_tests e_select-5.6 {
|
|
1 "SELECT DISTINCT b FROM h1" {one I i four IV iv}
|
|
2 "SELECT DISTINCT b COLLATE nocase FROM h1" {one I four IV}
|
|
3 "SELECT DISTINCT x FROM h2" {One Two Three Four}
|
|
4 "SELECT DISTINCT x COLLATE binary FROM h2" {
|
|
One Two Three Four one two three four
|
|
}
|
|
}
|
|
|
|
#-------------------------------------------------------------------------
|
|
# The following tests - e_select-7.* - test that statements made to do
|
|
# with compound SELECT statements are correct.
|
|
#
|
|
|
|
# EVIDENCE-OF: R-39368-64333 In a compound SELECT, all the constituent
|
|
# SELECTs must return the same number of result columns.
|
|
#
|
|
# All the other tests in this section use compound SELECTs created
|
|
# using component SELECTs that do return the same number of columns.
|
|
# So the tests here just show that it is an error to attempt otherwise.
|
|
#
|
|
drop_all_tables
|
|
do_execsql_test e_select-7.1.0 {
|
|
CREATE TABLE j1(a, b, c);
|
|
CREATE TABLE j2(e, f);
|
|
CREATE TABLE j3(g);
|
|
} {}
|
|
do_select_tests e_select-7.1 -error {
|
|
SELECTs to the left and right of %s do not have the same number of result columns
|
|
} {
|
|
1 "SELECT a, b FROM j1 UNION ALL SELECT g FROM j3" {{UNION ALL}}
|
|
2 "SELECT * FROM j1 UNION ALL SELECT * FROM j3" {{UNION ALL}}
|
|
3 "SELECT a, b FROM j1 UNION ALL SELECT g FROM j3" {{UNION ALL}}
|
|
4 "SELECT a, b FROM j1 UNION ALL SELECT * FROM j3,j2" {{UNION ALL}}
|
|
5 "SELECT * FROM j3,j2 UNION ALL SELECT a, b FROM j1" {{UNION ALL}}
|
|
|
|
6 "SELECT a, b FROM j1 UNION SELECT g FROM j3" {UNION}
|
|
7 "SELECT * FROM j1 UNION SELECT * FROM j3" {UNION}
|
|
8 "SELECT a, b FROM j1 UNION SELECT g FROM j3" {UNION}
|
|
9 "SELECT a, b FROM j1 UNION SELECT * FROM j3,j2" {UNION}
|
|
10 "SELECT * FROM j3,j2 UNION SELECT a, b FROM j1" {UNION}
|
|
|
|
11 "SELECT a, b FROM j1 INTERSECT SELECT g FROM j3" {INTERSECT}
|
|
12 "SELECT * FROM j1 INTERSECT SELECT * FROM j3" {INTERSECT}
|
|
13 "SELECT a, b FROM j1 INTERSECT SELECT g FROM j3" {INTERSECT}
|
|
14 "SELECT a, b FROM j1 INTERSECT SELECT * FROM j3,j2" {INTERSECT}
|
|
15 "SELECT * FROM j3,j2 INTERSECT SELECT a, b FROM j1" {INTERSECT}
|
|
|
|
16 "SELECT a, b FROM j1 EXCEPT SELECT g FROM j3" {EXCEPT}
|
|
17 "SELECT * FROM j1 EXCEPT SELECT * FROM j3" {EXCEPT}
|
|
18 "SELECT a, b FROM j1 EXCEPT SELECT g FROM j3" {EXCEPT}
|
|
19 "SELECT a, b FROM j1 EXCEPT SELECT * FROM j3,j2" {EXCEPT}
|
|
20 "SELECT * FROM j3,j2 EXCEPT SELECT a, b FROM j1" {EXCEPT}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-01450-11152 As the components of a compound SELECT must
|
|
# be simple SELECT statements, they may not contain ORDER BY or LIMIT
|
|
# clauses.
|
|
#
|
|
foreach {tn select op1 op2} {
|
|
1 "SELECT * FROM j1 ORDER BY a UNION ALL SELECT * FROM j2,j3"
|
|
{ORDER BY} {UNION ALL}
|
|
2 "SELECT count(*) FROM j1 ORDER BY 1 UNION ALL SELECT max(e) FROM j2"
|
|
{ORDER BY} {UNION ALL}
|
|
3 "SELECT count(*), * FROM j1 ORDER BY 1,2,3 UNION ALL SELECT *,* FROM j2"
|
|
{ORDER BY} {UNION ALL}
|
|
4 "SELECT * FROM j1 LIMIT 10 UNION ALL SELECT * FROM j2,j3"
|
|
LIMIT {UNION ALL}
|
|
5 "SELECT * FROM j1 LIMIT 10 OFFSET 5 UNION ALL SELECT * FROM j2,j3"
|
|
LIMIT {UNION ALL}
|
|
6 "SELECT a FROM j1 LIMIT (SELECT e FROM j2) UNION ALL SELECT g FROM j2,j3"
|
|
LIMIT {UNION ALL}
|
|
|
|
7 "SELECT * FROM j1 ORDER BY a UNION SELECT * FROM j2,j3"
|
|
{ORDER BY} {UNION}
|
|
8 "SELECT count(*) FROM j1 ORDER BY 1 UNION SELECT max(e) FROM j2"
|
|
{ORDER BY} {UNION}
|
|
9 "SELECT count(*), * FROM j1 ORDER BY 1,2,3 UNION SELECT *,* FROM j2"
|
|
{ORDER BY} {UNION}
|
|
10 "SELECT * FROM j1 LIMIT 10 UNION SELECT * FROM j2,j3"
|
|
LIMIT {UNION}
|
|
11 "SELECT * FROM j1 LIMIT 10 OFFSET 5 UNION SELECT * FROM j2,j3"
|
|
LIMIT {UNION}
|
|
12 "SELECT a FROM j1 LIMIT (SELECT e FROM j2) UNION SELECT g FROM j2,j3"
|
|
LIMIT {UNION}
|
|
|
|
13 "SELECT * FROM j1 ORDER BY a EXCEPT SELECT * FROM j2,j3"
|
|
{ORDER BY} {EXCEPT}
|
|
14 "SELECT count(*) FROM j1 ORDER BY 1 EXCEPT SELECT max(e) FROM j2"
|
|
{ORDER BY} {EXCEPT}
|
|
15 "SELECT count(*), * FROM j1 ORDER BY 1,2,3 EXCEPT SELECT *,* FROM j2"
|
|
{ORDER BY} {EXCEPT}
|
|
16 "SELECT * FROM j1 LIMIT 10 EXCEPT SELECT * FROM j2,j3"
|
|
LIMIT {EXCEPT}
|
|
17 "SELECT * FROM j1 LIMIT 10 OFFSET 5 EXCEPT SELECT * FROM j2,j3"
|
|
LIMIT {EXCEPT}
|
|
18 "SELECT a FROM j1 LIMIT (SELECT e FROM j2) EXCEPT SELECT g FROM j2,j3"
|
|
LIMIT {EXCEPT}
|
|
|
|
19 "SELECT * FROM j1 ORDER BY a INTERSECT SELECT * FROM j2,j3"
|
|
{ORDER BY} {INTERSECT}
|
|
20 "SELECT count(*) FROM j1 ORDER BY 1 INTERSECT SELECT max(e) FROM j2"
|
|
{ORDER BY} {INTERSECT}
|
|
21 "SELECT count(*), * FROM j1 ORDER BY 1,2,3 INTERSECT SELECT *,* FROM j2"
|
|
{ORDER BY} {INTERSECT}
|
|
22 "SELECT * FROM j1 LIMIT 10 INTERSECT SELECT * FROM j2,j3"
|
|
LIMIT {INTERSECT}
|
|
23 "SELECT * FROM j1 LIMIT 10 OFFSET 5 INTERSECT SELECT * FROM j2,j3"
|
|
LIMIT {INTERSECT}
|
|
24 "SELECT a FROM j1 LIMIT (SELECT e FROM j2) INTERSECT SELECT g FROM j2,j3"
|
|
LIMIT {INTERSECT}
|
|
} {
|
|
set err "$op1 clause should come after $op2 not before"
|
|
do_catchsql_test e_select-7.2.$tn $select [list 1 $err]
|
|
}
|
|
|
|
# EVIDENCE-OF: R-45440-25633 ORDER BY and LIMIT clauses may only occur
|
|
# at the end of the entire compound SELECT, and then only if the final
|
|
# element of the compound is not a VALUES clause.
|
|
#
|
|
foreach {tn select} {
|
|
1 "SELECT * FROM j1 UNION ALL SELECT * FROM j2,j3 ORDER BY a"
|
|
2 "SELECT count(*) FROM j1 UNION ALL SELECT max(e) FROM j2 ORDER BY 1"
|
|
3 "SELECT count(*), * FROM j1 UNION ALL SELECT *,* FROM j2 ORDER BY 1,2,3"
|
|
4 "SELECT * FROM j1 UNION ALL SELECT * FROM j2,j3 LIMIT 10"
|
|
5 "SELECT * FROM j1 UNION ALL SELECT * FROM j2,j3 LIMIT 10 OFFSET 5"
|
|
6 "SELECT a FROM j1 UNION ALL SELECT g FROM j2,j3 LIMIT (SELECT 10)"
|
|
|
|
7 "SELECT * FROM j1 UNION SELECT * FROM j2,j3 ORDER BY a"
|
|
8 "SELECT count(*) FROM j1 UNION SELECT max(e) FROM j2 ORDER BY 1"
|
|
8b "VALUES('8b') UNION SELECT max(e) FROM j2 ORDER BY 1"
|
|
9 "SELECT count(*), * FROM j1 UNION SELECT *,* FROM j2 ORDER BY 1,2,3"
|
|
10 "SELECT * FROM j1 UNION SELECT * FROM j2,j3 LIMIT 10"
|
|
11 "SELECT * FROM j1 UNION SELECT * FROM j2,j3 LIMIT 10 OFFSET 5"
|
|
12 "SELECT a FROM j1 UNION SELECT g FROM j2,j3 LIMIT (SELECT 10)"
|
|
|
|
13 "SELECT * FROM j1 EXCEPT SELECT * FROM j2,j3 ORDER BY a"
|
|
14 "SELECT count(*) FROM j1 EXCEPT SELECT max(e) FROM j2 ORDER BY 1"
|
|
15 "SELECT count(*), * FROM j1 EXCEPT SELECT *,* FROM j2 ORDER BY 1,2,3"
|
|
16 "SELECT * FROM j1 EXCEPT SELECT * FROM j2,j3 LIMIT 10"
|
|
17 "SELECT * FROM j1 EXCEPT SELECT * FROM j2,j3 LIMIT 10 OFFSET 5"
|
|
18 "SELECT a FROM j1 EXCEPT SELECT g FROM j2,j3 LIMIT (SELECT 10)"
|
|
|
|
19 "SELECT * FROM j1 INTERSECT SELECT * FROM j2,j3 ORDER BY a"
|
|
20 "SELECT count(*) FROM j1 INTERSECT SELECT max(e) FROM j2 ORDER BY 1"
|
|
21 "SELECT count(*), * FROM j1 INTERSECT SELECT *,* FROM j2 ORDER BY 1,2,3"
|
|
22 "SELECT * FROM j1 INTERSECT SELECT * FROM j2,j3 LIMIT 10"
|
|
23 "SELECT * FROM j1 INTERSECT SELECT * FROM j2,j3 LIMIT 10 OFFSET 5"
|
|
24 "SELECT a FROM j1 INTERSECT SELECT g FROM j2,j3 LIMIT (SELECT 10)"
|
|
} {
|
|
do_test e_select-7.3.$tn { catch {execsql $select} msg } 0
|
|
}
|
|
foreach {tn select} {
|
|
50 "SELECT * FROM j1 ORDER BY 1 UNION ALL SELECT * FROM j2,j3"
|
|
51 "SELECT * FROM j1 LIMIT 1 UNION ALL SELECT * FROM j2,j3"
|
|
52 "SELECT count(*) FROM j1 UNION ALL VALUES(11) ORDER BY 1"
|
|
53 "SELECT count(*) FROM j1 UNION ALL VALUES(11) LIMIT 1"
|
|
} {
|
|
do_test e_select-7.3.$tn { catch {execsql $select} msg } 1
|
|
}
|
|
|
|
# EVIDENCE-OF: R-08531-36543 A compound SELECT created using UNION ALL
|
|
# operator returns all the rows from the SELECT to the left of the UNION
|
|
# ALL operator, and all the rows from the SELECT to the right of it.
|
|
#
|
|
drop_all_tables
|
|
do_execsql_test e_select-7.4.0 {
|
|
CREATE TABLE q1(a TEXT, b INTEGER, c);
|
|
CREATE TABLE q2(d NUMBER, e BLOB);
|
|
CREATE TABLE q3(f REAL, g);
|
|
|
|
INSERT INTO q1 VALUES(16, -87.66, NULL);
|
|
INSERT INTO q1 VALUES('legible', 94, -42.47);
|
|
INSERT INTO q1 VALUES('beauty', 36, NULL);
|
|
|
|
INSERT INTO q2 VALUES('legible', 1);
|
|
INSERT INTO q2 VALUES('beauty', 2);
|
|
INSERT INTO q2 VALUES(-65.91, 4);
|
|
INSERT INTO q2 VALUES('emanating', -16.56);
|
|
|
|
INSERT INTO q3 VALUES('beauty', 2);
|
|
INSERT INTO q3 VALUES('beauty', 2);
|
|
} {}
|
|
do_select_tests e_select-7.4 {
|
|
1 {SELECT a FROM q1 UNION ALL SELECT d FROM q2}
|
|
{16 legible beauty legible beauty -65.91 emanating}
|
|
|
|
2 {SELECT * FROM q1 WHERE a=16 UNION ALL SELECT 'x', * FROM q2 WHERE oid=1}
|
|
{16 -87.66 {} x legible 1}
|
|
|
|
3 {SELECT count(*) FROM q1 UNION ALL SELECT min(e) FROM q2}
|
|
{3 -16.56}
|
|
|
|
4 {SELECT * FROM q2 UNION ALL SELECT * FROM q3}
|
|
{legible 1 beauty 2 -65.91 4 emanating -16.56 beauty 2 beauty 2}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-20560-39162 The UNION operator works the same way as
|
|
# UNION ALL, except that duplicate rows are removed from the final
|
|
# result set.
|
|
#
|
|
do_select_tests e_select-7.5 {
|
|
1 {SELECT a FROM q1 UNION SELECT d FROM q2}
|
|
{-65.91 16 beauty emanating legible}
|
|
|
|
2 {SELECT * FROM q1 WHERE a=16 UNION SELECT 'x', * FROM q2 WHERE oid=1}
|
|
{16 -87.66 {} x legible 1}
|
|
|
|
3 {SELECT count(*) FROM q1 UNION SELECT min(e) FROM q2}
|
|
{-16.56 3}
|
|
|
|
4 {SELECT * FROM q2 UNION SELECT * FROM q3}
|
|
{-65.91 4 beauty 2 emanating -16.56 legible 1}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-45764-31737 The INTERSECT operator returns the
|
|
# intersection of the results of the left and right SELECTs.
|
|
#
|
|
do_select_tests e_select-7.6 {
|
|
1 {SELECT a FROM q1 INTERSECT SELECT d FROM q2} {beauty legible}
|
|
2 {SELECT * FROM q2 INTERSECT SELECT * FROM q3} {beauty 2}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-25787-28949 The EXCEPT operator returns the subset of
|
|
# rows returned by the left SELECT that are not also returned by the
|
|
# right-hand SELECT.
|
|
#
|
|
do_select_tests e_select-7.7 {
|
|
1 {SELECT a FROM q1 EXCEPT SELECT d FROM q2} {16}
|
|
|
|
2 {SELECT * FROM q2 EXCEPT SELECT * FROM q3}
|
|
{-65.91 4 emanating -16.56 legible 1}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-40729-56447 Duplicate rows are removed from the results
|
|
# of INTERSECT and EXCEPT operators before the result set is returned.
|
|
#
|
|
do_select_tests e_select-7.8 {
|
|
0 {SELECT * FROM q3} {beauty 2 beauty 2}
|
|
|
|
1 {SELECT * FROM q3 INTERSECT SELECT * FROM q3} {beauty 2}
|
|
2 {SELECT * FROM q3 EXCEPT SELECT a,b FROM q1} {beauty 2}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-46765-43362 For the purposes of determining duplicate
|
|
# rows for the results of compound SELECT operators, NULL values are
|
|
# considered equal to other NULL values and distinct from all non-NULL
|
|
# values.
|
|
#
|
|
db nullvalue null
|
|
do_select_tests e_select-7.9 {
|
|
1 {SELECT NULL UNION ALL SELECT NULL} {null null}
|
|
2 {SELECT NULL UNION SELECT NULL} {null}
|
|
3 {SELECT NULL INTERSECT SELECT NULL} {null}
|
|
4 {SELECT NULL EXCEPT SELECT NULL} {}
|
|
|
|
5 {SELECT NULL UNION ALL SELECT 'ab'} {null ab}
|
|
6 {SELECT NULL UNION SELECT 'ab'} {null ab}
|
|
7 {SELECT NULL INTERSECT SELECT 'ab'} {}
|
|
8 {SELECT NULL EXCEPT SELECT 'ab'} {null}
|
|
|
|
9 {SELECT NULL UNION ALL SELECT 0} {null 0}
|
|
10 {SELECT NULL UNION SELECT 0} {null 0}
|
|
11 {SELECT NULL INTERSECT SELECT 0} {}
|
|
12 {SELECT NULL EXCEPT SELECT 0} {null}
|
|
|
|
13 {SELECT c FROM q1 UNION ALL SELECT g FROM q3} {null -42.47 null 2 2}
|
|
14 {SELECT c FROM q1 UNION SELECT g FROM q3} {null -42.47 2}
|
|
15 {SELECT c FROM q1 INTERSECT SELECT g FROM q3} {}
|
|
16 {SELECT c FROM q1 EXCEPT SELECT g FROM q3} {null -42.47}
|
|
}
|
|
db nullvalue {}
|
|
|
|
# EVIDENCE-OF: R-51232-50224 The collation sequence used to compare two
|
|
# text values is determined as if the columns of the left and right-hand
|
|
# SELECT statements were the left and right-hand operands of the equals
|
|
# (=) operator, except that greater precedence is not assigned to a
|
|
# collation sequence specified with the postfix COLLATE operator.
|
|
#
|
|
drop_all_tables
|
|
do_execsql_test e_select-7.10.0 {
|
|
CREATE TABLE y1(a COLLATE nocase, b COLLATE binary, c);
|
|
INSERT INTO y1 VALUES('Abc', 'abc', 'aBC');
|
|
} {}
|
|
do_select_tests e_select-7.10 {
|
|
1 {SELECT 'abc' UNION SELECT 'ABC'} {ABC abc}
|
|
2 {SELECT 'abc' COLLATE nocase UNION SELECT 'ABC'} {ABC}
|
|
3 {SELECT 'abc' UNION SELECT 'ABC' COLLATE nocase} {ABC}
|
|
4 {SELECT 'abc' COLLATE binary UNION SELECT 'ABC' COLLATE nocase} {ABC abc}
|
|
5 {SELECT 'abc' COLLATE nocase UNION SELECT 'ABC' COLLATE binary} {ABC}
|
|
|
|
6 {SELECT a FROM y1 UNION SELECT b FROM y1} {abc}
|
|
7 {SELECT b FROM y1 UNION SELECT a FROM y1} {Abc abc}
|
|
8 {SELECT a FROM y1 UNION SELECT c FROM y1} {aBC}
|
|
|
|
9 {SELECT a FROM y1 UNION SELECT c COLLATE binary FROM y1} {aBC}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-32706-07403 No affinity transformations are applied to
|
|
# any values when comparing rows as part of a compound SELECT.
|
|
#
|
|
drop_all_tables
|
|
do_execsql_test e_select-7.10.0 {
|
|
CREATE TABLE w1(a TEXT, b NUMBER);
|
|
CREATE TABLE w2(a, b TEXT);
|
|
|
|
INSERT INTO w1 VALUES('1', 4.1);
|
|
INSERT INTO w2 VALUES(1, 4.1);
|
|
} {}
|
|
|
|
do_select_tests e_select-7.11 {
|
|
1 { SELECT a FROM w1 UNION SELECT a FROM w2 } {1 1}
|
|
2 { SELECT a FROM w2 UNION SELECT a FROM w1 } {1 1}
|
|
3 { SELECT b FROM w1 UNION SELECT b FROM w2 } {4.1 4.1}
|
|
4 { SELECT b FROM w2 UNION SELECT b FROM w1 } {4.1 4.1}
|
|
|
|
5 { SELECT a FROM w1 INTERSECT SELECT a FROM w2 } {}
|
|
6 { SELECT a FROM w2 INTERSECT SELECT a FROM w1 } {}
|
|
7 { SELECT b FROM w1 INTERSECT SELECT b FROM w2 } {}
|
|
8 { SELECT b FROM w2 INTERSECT SELECT b FROM w1 } {}
|
|
|
|
9 { SELECT a FROM w1 EXCEPT SELECT a FROM w2 } {1}
|
|
10 { SELECT a FROM w2 EXCEPT SELECT a FROM w1 } {1}
|
|
11 { SELECT b FROM w1 EXCEPT SELECT b FROM w2 } {4.1}
|
|
12 { SELECT b FROM w2 EXCEPT SELECT b FROM w1 } {4.1}
|
|
}
|
|
|
|
|
|
# EVIDENCE-OF: R-32562-20566 When three or more simple SELECTs are
|
|
# connected into a compound SELECT, they group from left to right. In
|
|
# other words, if "A", "B" and "C" are all simple SELECT statements, (A
|
|
# op B op C) is processed as ((A op B) op C).
|
|
#
|
|
# e_select-7.12.1: Precedence of UNION vs. INTERSECT
|
|
# e_select-7.12.2: Precedence of UNION vs. UNION ALL
|
|
# e_select-7.12.3: Precedence of UNION vs. EXCEPT
|
|
# e_select-7.12.4: Precedence of INTERSECT vs. UNION ALL
|
|
# e_select-7.12.5: Precedence of INTERSECT vs. EXCEPT
|
|
# e_select-7.12.6: Precedence of UNION ALL vs. EXCEPT
|
|
# e_select-7.12.7: Check that "a EXCEPT b EXCEPT c" is processed as
|
|
# "(a EXCEPT b) EXCEPT c".
|
|
#
|
|
# The INTERSECT and EXCEPT operations are mutually commutative. So
|
|
# the e_select-7.12.5 test cases do not prove very much.
|
|
#
|
|
drop_all_tables
|
|
do_execsql_test e_select-7.12.0 {
|
|
CREATE TABLE t1(x);
|
|
INSERT INTO t1 VALUES(1);
|
|
INSERT INTO t1 VALUES(2);
|
|
INSERT INTO t1 VALUES(3);
|
|
} {}
|
|
foreach {tn select res} {
|
|
1a "(1,2) INTERSECT (1) UNION (3)" {1 3}
|
|
1b "(3) UNION (1,2) INTERSECT (1)" {1}
|
|
|
|
2a "(1,2) UNION (3) UNION ALL (1)" {1 2 3 1}
|
|
2b "(1) UNION ALL (3) UNION (1,2)" {1 2 3}
|
|
|
|
3a "(1,2) UNION (3) EXCEPT (1)" {2 3}
|
|
3b "(1,2) EXCEPT (3) UNION (1)" {1 2}
|
|
|
|
4a "(1,2) INTERSECT (1) UNION ALL (3)" {1 3}
|
|
4b "(3) UNION (1,2) INTERSECT (1)" {1}
|
|
|
|
5a "(1,2) INTERSECT (2) EXCEPT (2)" {}
|
|
5b "(2,3) EXCEPT (2) INTERSECT (2)" {}
|
|
|
|
6a "(2) UNION ALL (2) EXCEPT (2)" {}
|
|
6b "(2) EXCEPT (2) UNION ALL (2)" {2}
|
|
|
|
7 "(2,3) EXCEPT (2) EXCEPT (3)" {}
|
|
} {
|
|
set select [string map {( {SELECT x FROM t1 WHERE x IN (}} $select]
|
|
do_execsql_test e_select-7.12.$tn $select [list {*}$res]
|
|
}
|
|
|
|
|
|
#-------------------------------------------------------------------------
|
|
# ORDER BY clauses
|
|
#
|
|
|
|
drop_all_tables
|
|
do_execsql_test e_select-8.1.0 {
|
|
CREATE TABLE d1(x, y, z);
|
|
|
|
INSERT INTO d1 VALUES(1, 2, 3);
|
|
INSERT INTO d1 VALUES(2, 5, -1);
|
|
INSERT INTO d1 VALUES(1, 2, 8);
|
|
INSERT INTO d1 VALUES(1, 2, 7);
|
|
INSERT INTO d1 VALUES(2, 4, 93);
|
|
INSERT INTO d1 VALUES(1, 2, -20);
|
|
INSERT INTO d1 VALUES(1, 4, 93);
|
|
INSERT INTO d1 VALUES(1, 5, -1);
|
|
|
|
CREATE TABLE d2(a, b);
|
|
INSERT INTO d2 VALUES('gently', 'failings');
|
|
INSERT INTO d2 VALUES('commercials', 'bathrobe');
|
|
INSERT INTO d2 VALUES('iterate', 'sexton');
|
|
INSERT INTO d2 VALUES('babied', 'charitableness');
|
|
INSERT INTO d2 VALUES('solemnness', 'annexed');
|
|
INSERT INTO d2 VALUES('rejoicing', 'liabilities');
|
|
INSERT INTO d2 VALUES('pragmatist', 'guarded');
|
|
INSERT INTO d2 VALUES('barked', 'interrupted');
|
|
INSERT INTO d2 VALUES('reemphasizes', 'reply');
|
|
INSERT INTO d2 VALUES('lad', 'relenting');
|
|
} {}
|
|
|
|
# EVIDENCE-OF: R-44988-41064 Rows are first sorted based on the results
|
|
# of evaluating the left-most expression in the ORDER BY list, then ties
|
|
# are broken by evaluating the second left-most expression and so on.
|
|
#
|
|
do_select_tests e_select-8.1 {
|
|
1 "SELECT * FROM d1 ORDER BY x, y, z" {
|
|
1 2 -20 1 2 3 1 2 7 1 2 8
|
|
1 4 93 1 5 -1 2 4 93 2 5 -1
|
|
}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-06617-54588 Each ORDER BY expression may be optionally
|
|
# followed by one of the keywords ASC (smaller values are returned
|
|
# first) or DESC (larger values are returned first).
|
|
#
|
|
# Test cases e_select-8.2.* test the above.
|
|
#
|
|
# EVIDENCE-OF: R-18705-33393 If neither ASC or DESC are specified, rows
|
|
# are sorted in ascending (smaller values first) order by default.
|
|
#
|
|
# Test cases e_select-8.3.* test the above. All 8.3 test cases are
|
|
# copies of 8.2 test cases with the explicit "ASC" removed.
|
|
#
|
|
do_select_tests e_select-8 {
|
|
2.1 "SELECT * FROM d1 ORDER BY x ASC, y ASC, z ASC" {
|
|
1 2 -20 1 2 3 1 2 7 1 2 8
|
|
1 4 93 1 5 -1 2 4 93 2 5 -1
|
|
}
|
|
2.2 "SELECT * FROM d1 ORDER BY x DESC, y DESC, z DESC" {
|
|
2 5 -1 2 4 93 1 5 -1 1 4 93
|
|
1 2 8 1 2 7 1 2 3 1 2 -20
|
|
}
|
|
2.3 "SELECT * FROM d1 ORDER BY x DESC, y ASC, z DESC" {
|
|
2 4 93 2 5 -1 1 2 8 1 2 7
|
|
1 2 3 1 2 -20 1 4 93 1 5 -1
|
|
}
|
|
2.4 "SELECT * FROM d1 ORDER BY x DESC, y ASC, z ASC" {
|
|
2 4 93 2 5 -1 1 2 -20 1 2 3
|
|
1 2 7 1 2 8 1 4 93 1 5 -1
|
|
}
|
|
|
|
3.1 "SELECT * FROM d1 ORDER BY x, y, z" {
|
|
1 2 -20 1 2 3 1 2 7 1 2 8
|
|
1 4 93 1 5 -1 2 4 93 2 5 -1
|
|
}
|
|
3.3 "SELECT * FROM d1 ORDER BY x DESC, y, z DESC" {
|
|
2 4 93 2 5 -1 1 2 8 1 2 7
|
|
1 2 3 1 2 -20 1 4 93 1 5 -1
|
|
}
|
|
3.4 "SELECT * FROM d1 ORDER BY x DESC, y, z" {
|
|
2 4 93 2 5 -1 1 2 -20 1 2 3
|
|
1 2 7 1 2 8 1 4 93 1 5 -1
|
|
}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-29779-04281 If the ORDER BY expression is a constant
|
|
# integer K then the expression is considered an alias for the K-th
|
|
# column of the result set (columns are numbered from left to right
|
|
# starting with 1).
|
|
#
|
|
do_select_tests e_select-8.4 {
|
|
1 "SELECT * FROM d1 ORDER BY 1 ASC, 2 ASC, 3 ASC" {
|
|
1 2 -20 1 2 3 1 2 7 1 2 8
|
|
1 4 93 1 5 -1 2 4 93 2 5 -1
|
|
}
|
|
2 "SELECT * FROM d1 ORDER BY 1 DESC, 2 DESC, 3 DESC" {
|
|
2 5 -1 2 4 93 1 5 -1 1 4 93
|
|
1 2 8 1 2 7 1 2 3 1 2 -20
|
|
}
|
|
3 "SELECT * FROM d1 ORDER BY 1 DESC, 2 ASC, 3 DESC" {
|
|
2 4 93 2 5 -1 1 2 8 1 2 7
|
|
1 2 3 1 2 -20 1 4 93 1 5 -1
|
|
}
|
|
4 "SELECT * FROM d1 ORDER BY 1 DESC, 2 ASC, 3 ASC" {
|
|
2 4 93 2 5 -1 1 2 -20 1 2 3
|
|
1 2 7 1 2 8 1 4 93 1 5 -1
|
|
}
|
|
5 "SELECT * FROM d1 ORDER BY 1, 2, 3" {
|
|
1 2 -20 1 2 3 1 2 7 1 2 8
|
|
1 4 93 1 5 -1 2 4 93 2 5 -1
|
|
}
|
|
6 "SELECT * FROM d1 ORDER BY 1 DESC, 2, 3 DESC" {
|
|
2 4 93 2 5 -1 1 2 8 1 2 7
|
|
1 2 3 1 2 -20 1 4 93 1 5 -1
|
|
}
|
|
7 "SELECT * FROM d1 ORDER BY 1 DESC, 2, 3" {
|
|
2 4 93 2 5 -1 1 2 -20 1 2 3
|
|
1 2 7 1 2 8 1 4 93 1 5 -1
|
|
}
|
|
8 "SELECT z, x FROM d1 ORDER BY 2" {
|
|
/# 1 # 1 # 1 # 1
|
|
# 1 # 1 # 2 # 2/
|
|
}
|
|
9 "SELECT z, x FROM d1 ORDER BY 1" {
|
|
/-20 1 -1 # -1 # 3 1
|
|
7 1 8 1 93 # 93 #/
|
|
}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-63286-51977 If the ORDER BY expression is an identifier
|
|
# that corresponds to the alias of one of the output columns, then the
|
|
# expression is considered an alias for that column.
|
|
#
|
|
do_select_tests e_select-8.5 {
|
|
1 "SELECT z+1 AS abc FROM d1 ORDER BY abc" {
|
|
-19 0 0 4 8 9 94 94
|
|
}
|
|
2 "SELECT z+1 AS abc FROM d1 ORDER BY abc DESC" {
|
|
94 94 9 8 4 0 0 -19
|
|
}
|
|
3 "SELECT z AS x, x AS z FROM d1 ORDER BY z" {
|
|
/# 1 # 1 # 1 # 1 # 1 # 1 # 2 # 2/
|
|
}
|
|
4 "SELECT z AS x, x AS z FROM d1 ORDER BY x" {
|
|
/-20 1 -1 # -1 # 3 1 7 1 8 1 93 # 93 #/
|
|
}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-65068-27207 Otherwise, if the ORDER BY expression is
|
|
# any other expression, it is evaluated and the returned value used to
|
|
# order the output rows.
|
|
#
|
|
# EVIDENCE-OF: R-03421-57988 If the SELECT statement is a simple SELECT,
|
|
# then an ORDER BY may contain any arbitrary expressions.
|
|
#
|
|
do_select_tests e_select-8.6 {
|
|
1 "SELECT * FROM d1 ORDER BY x+y+z" {
|
|
1 2 -20 1 5 -1 1 2 3 2 5 -1
|
|
1 2 7 1 2 8 1 4 93 2 4 93
|
|
}
|
|
2 "SELECT * FROM d1 ORDER BY x*z" {
|
|
1 2 -20 2 5 -1 1 5 -1 1 2 3
|
|
1 2 7 1 2 8 1 4 93 2 4 93
|
|
}
|
|
3 "SELECT * FROM d1 ORDER BY y*z" {
|
|
1 2 -20 2 5 -1 1 5 -1 1 2 3
|
|
1 2 7 1 2 8 2 4 93 1 4 93
|
|
}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-28853-08147 However, if the SELECT is a compound
|
|
# SELECT, then ORDER BY expressions that are not aliases to output
|
|
# columns must be exactly the same as an expression used as an output
|
|
# column.
|
|
#
|
|
do_select_tests e_select-8.7.1 -error {
|
|
%s ORDER BY term does not match any column in the result set
|
|
} {
|
|
1 "SELECT x FROM d1 UNION ALL SELECT a FROM d2 ORDER BY x*z" 1st
|
|
2 "SELECT x,z FROM d1 UNION ALL SELECT a,b FROM d2 ORDER BY x, x/z" 2nd
|
|
}
|
|
|
|
do_select_tests e_select-8.7.2 {
|
|
1 "SELECT x*z FROM d1 UNION ALL SELECT a FROM d2 ORDER BY x*z" {
|
|
-20 -2 -1 3 7 8 93 186 babied barked commercials gently
|
|
iterate lad pragmatist reemphasizes rejoicing solemnness
|
|
}
|
|
2 "SELECT x, x/z FROM d1 UNION ALL SELECT a,b FROM d2 ORDER BY x, x/z" {
|
|
1 -1 1 0 1 0 1 0 1 0 1 0 2 -2 2 0
|
|
babied charitableness barked interrupted commercials bathrobe gently
|
|
failings iterate sexton lad relenting pragmatist guarded reemphasizes reply
|
|
rejoicing liabilities solemnness annexed
|
|
}
|
|
}
|
|
|
|
do_execsql_test e_select-8.8.0 {
|
|
CREATE TABLE d3(a);
|
|
INSERT INTO d3 VALUES('text');
|
|
INSERT INTO d3 VALUES(14.1);
|
|
INSERT INTO d3 VALUES(13);
|
|
INSERT INTO d3 VALUES(X'78787878');
|
|
INSERT INTO d3 VALUES(15);
|
|
INSERT INTO d3 VALUES(12.9);
|
|
INSERT INTO d3 VALUES(null);
|
|
|
|
CREATE TABLE d4(x COLLATE nocase);
|
|
INSERT INTO d4 VALUES('abc');
|
|
INSERT INTO d4 VALUES('ghi');
|
|
INSERT INTO d4 VALUES('DEF');
|
|
INSERT INTO d4 VALUES('JKL');
|
|
} {}
|
|
|
|
# EVIDENCE-OF: R-10883-17697 For the purposes of sorting rows, values
|
|
# are compared in the same way as for comparison expressions.
|
|
#
|
|
# The following tests verify that values of different types are sorted
|
|
# correctly, and that mixed real and integer values are compared properly.
|
|
#
|
|
do_execsql_test e_select-8.8.1 {
|
|
SELECT a FROM d3 ORDER BY a
|
|
} {{} 12.9 13 14.1 15 text xxxx}
|
|
do_execsql_test e_select-8.8.2 {
|
|
SELECT a FROM d3 ORDER BY a DESC
|
|
} {xxxx text 15 14.1 13 12.9 {}}
|
|
|
|
|
|
# EVIDENCE-OF: R-64199-22471 If the ORDER BY expression is assigned a
|
|
# collation sequence using the postfix COLLATE operator, then the
|
|
# specified collation sequence is used.
|
|
#
|
|
do_execsql_test e_select-8.9.1 {
|
|
SELECT x FROM d4 ORDER BY 1 COLLATE binary
|
|
} {DEF JKL abc ghi}
|
|
do_execsql_test e_select-8.9.2 {
|
|
SELECT x COLLATE binary FROM d4 ORDER BY 1 COLLATE nocase
|
|
} {abc DEF ghi JKL}
|
|
|
|
# EVIDENCE-OF: R-09398-26102 Otherwise, if the ORDER BY expression is
|
|
# an alias to an expression that has been assigned a collation sequence
|
|
# using the postfix COLLATE operator, then the collation sequence
|
|
# assigned to the aliased expression is used.
|
|
#
|
|
# In the test 8.10.2, the only result-column expression has no alias. So the
|
|
# ORDER BY expression is not a reference to it and therefore does not inherit
|
|
# the collation sequence. In test 8.10.3, "x" is the alias (as well as the
|
|
# column name), so the ORDER BY expression is interpreted as an alias and the
|
|
# collation sequence attached to the result column is used for sorting.
|
|
#
|
|
do_execsql_test e_select-8.10.1 {
|
|
SELECT x COLLATE binary FROM d4 ORDER BY 1
|
|
} {DEF JKL abc ghi}
|
|
do_execsql_test e_select-8.10.2 {
|
|
SELECT x COLLATE binary FROM d4 ORDER BY x
|
|
} {abc DEF ghi JKL}
|
|
do_execsql_test e_select-8.10.3 {
|
|
SELECT x COLLATE binary AS x FROM d4 ORDER BY x
|
|
} {DEF JKL abc ghi}
|
|
|
|
# EVIDENCE-OF: R-27301-09658 Otherwise, if the ORDER BY expression is a
|
|
# column or an alias of an expression that is a column, then the default
|
|
# collation sequence for the column is used.
|
|
#
|
|
do_execsql_test e_select-8.11.1 {
|
|
SELECT x AS y FROM d4 ORDER BY y
|
|
} {abc DEF ghi JKL}
|
|
do_execsql_test e_select-8.11.2 {
|
|
SELECT x||'' FROM d4 ORDER BY x
|
|
} {abc DEF ghi JKL}
|
|
|
|
# EVIDENCE-OF: R-49925-55905 Otherwise, the BINARY collation sequence is
|
|
# used.
|
|
#
|
|
do_execsql_test e_select-8.12.1 {
|
|
SELECT x FROM d4 ORDER BY x||''
|
|
} {DEF JKL abc ghi}
|
|
|
|
# EVIDENCE-OF: R-44130-32593 If an ORDER BY expression is not an integer
|
|
# alias, then SQLite searches the left-most SELECT in the compound for a
|
|
# result column that matches either the second or third rules above. If
|
|
# a match is found, the search stops and the expression is handled as an
|
|
# alias for the result column that it has been matched against.
|
|
# Otherwise, the next SELECT to the right is tried, and so on.
|
|
#
|
|
do_execsql_test e_select-8.13.0 {
|
|
CREATE TABLE d5(a, b);
|
|
CREATE TABLE d6(c, d);
|
|
CREATE TABLE d7(e, f);
|
|
|
|
INSERT INTO d5 VALUES(1, 'f');
|
|
INSERT INTO d6 VALUES(2, 'e');
|
|
INSERT INTO d7 VALUES(3, 'd');
|
|
INSERT INTO d5 VALUES(4, 'c');
|
|
INSERT INTO d6 VALUES(5, 'b');
|
|
INSERT INTO d7 VALUES(6, 'a');
|
|
|
|
CREATE TABLE d8(x COLLATE nocase);
|
|
CREATE TABLE d9(y COLLATE nocase);
|
|
|
|
INSERT INTO d8 VALUES('a');
|
|
INSERT INTO d9 VALUES('B');
|
|
INSERT INTO d8 VALUES('c');
|
|
INSERT INTO d9 VALUES('D');
|
|
} {}
|
|
do_select_tests e_select-8.13 {
|
|
1 { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7
|
|
ORDER BY a
|
|
} {1 2 3 4 5 6}
|
|
2 { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7
|
|
ORDER BY c
|
|
} {1 2 3 4 5 6}
|
|
3 { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7
|
|
ORDER BY e
|
|
} {1 2 3 4 5 6}
|
|
4 { SELECT a FROM d5 UNION ALL SELECT c FROM d6 UNION ALL SELECT e FROM d7
|
|
ORDER BY 1
|
|
} {1 2 3 4 5 6}
|
|
|
|
5 { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY b }
|
|
{f 1 c 4 4 c 1 f}
|
|
6 { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY 2 }
|
|
{f 1 c 4 4 c 1 f}
|
|
|
|
7 { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY a }
|
|
{1 f 4 c c 4 f 1}
|
|
8 { SELECT a, b FROM d5 UNION ALL SELECT b, a FROM d5 ORDER BY 1 }
|
|
{1 f 4 c c 4 f 1}
|
|
|
|
9 { SELECT a, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY a+1 }
|
|
{f 2 c 5 4 c 1 f}
|
|
10 { SELECT a, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY 2 }
|
|
{f 2 c 5 4 c 1 f}
|
|
|
|
11 { SELECT a+1, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY a+1 }
|
|
{2 f 5 c c 5 f 2}
|
|
12 { SELECT a+1, b FROM d5 UNION ALL SELECT b, a+1 FROM d5 ORDER BY 1 }
|
|
{2 f 5 c c 5 f 2}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-39265-04070 If no matching expression can be found in
|
|
# the result columns of any constituent SELECT, it is an error.
|
|
#
|
|
do_select_tests e_select-8.14 -error {
|
|
%s ORDER BY term does not match any column in the result set
|
|
} {
|
|
1 { SELECT a FROM d5 UNION SELECT c FROM d6 ORDER BY a+1 } 1st
|
|
2 { SELECT a FROM d5 UNION SELECT c FROM d6 ORDER BY a, a+1 } 2nd
|
|
3 { SELECT * FROM d5 INTERSECT SELECT * FROM d6 ORDER BY 'hello' } 1st
|
|
4 { SELECT * FROM d5 INTERSECT SELECT * FROM d6 ORDER BY blah } 1st
|
|
5 { SELECT * FROM d5 INTERSECT SELECT * FROM d6 ORDER BY c,d,c+d } 3rd
|
|
6 { SELECT * FROM d5 EXCEPT SELECT * FROM d7 ORDER BY 1,2,b,a/b } 4th
|
|
}
|
|
|
|
# EVIDENCE-OF: R-03407-11483 Each term of the ORDER BY clause is
|
|
# processed separately and may be matched against result columns from
|
|
# different SELECT statements in the compound.
|
|
#
|
|
do_select_tests e_select-8.15 {
|
|
1 { SELECT a, b FROM d5 UNION ALL SELECT c-1, d FROM d6 ORDER BY a, d }
|
|
{1 e 1 f 4 b 4 c}
|
|
2 { SELECT a, b FROM d5 UNION ALL SELECT c-1, d FROM d6 ORDER BY c-1, b }
|
|
{1 e 1 f 4 b 4 c}
|
|
3 { SELECT a, b FROM d5 UNION ALL SELECT c-1, d FROM d6 ORDER BY 1, 2 }
|
|
{1 e 1 f 4 b 4 c}
|
|
}
|
|
|
|
|
|
#-------------------------------------------------------------------------
|
|
# Tests related to statements made about the LIMIT/OFFSET clause.
|
|
#
|
|
do_execsql_test e_select-9.0 {
|
|
CREATE TABLE f1(a, b);
|
|
INSERT INTO f1 VALUES(26, 'z');
|
|
INSERT INTO f1 VALUES(25, 'y');
|
|
INSERT INTO f1 VALUES(24, 'x');
|
|
INSERT INTO f1 VALUES(23, 'w');
|
|
INSERT INTO f1 VALUES(22, 'v');
|
|
INSERT INTO f1 VALUES(21, 'u');
|
|
INSERT INTO f1 VALUES(20, 't');
|
|
INSERT INTO f1 VALUES(19, 's');
|
|
INSERT INTO f1 VALUES(18, 'r');
|
|
INSERT INTO f1 VALUES(17, 'q');
|
|
INSERT INTO f1 VALUES(16, 'p');
|
|
INSERT INTO f1 VALUES(15, 'o');
|
|
INSERT INTO f1 VALUES(14, 'n');
|
|
INSERT INTO f1 VALUES(13, 'm');
|
|
INSERT INTO f1 VALUES(12, 'l');
|
|
INSERT INTO f1 VALUES(11, 'k');
|
|
INSERT INTO f1 VALUES(10, 'j');
|
|
INSERT INTO f1 VALUES(9, 'i');
|
|
INSERT INTO f1 VALUES(8, 'h');
|
|
INSERT INTO f1 VALUES(7, 'g');
|
|
INSERT INTO f1 VALUES(6, 'f');
|
|
INSERT INTO f1 VALUES(5, 'e');
|
|
INSERT INTO f1 VALUES(4, 'd');
|
|
INSERT INTO f1 VALUES(3, 'c');
|
|
INSERT INTO f1 VALUES(2, 'b');
|
|
INSERT INTO f1 VALUES(1, 'a');
|
|
} {}
|
|
|
|
# EVIDENCE-OF: R-30481-56627 Any scalar expression may be used in the
|
|
# LIMIT clause, so long as it evaluates to an integer or a value that
|
|
# can be losslessly converted to an integer.
|
|
#
|
|
do_select_tests e_select-9.1 {
|
|
1 { SELECT b FROM f1 ORDER BY a LIMIT 5 } {a b c d e}
|
|
2 { SELECT b FROM f1 ORDER BY a LIMIT 2+3 } {a b c d e}
|
|
3 { SELECT b FROM f1 ORDER BY a LIMIT (SELECT a FROM f1 WHERE b = 'e') }
|
|
{a b c d e}
|
|
4 { SELECT b FROM f1 ORDER BY a LIMIT 5.0 } {a b c d e}
|
|
5 { SELECT b FROM f1 ORDER BY a LIMIT '5' } {a b c d e}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-46155-47219 If the expression evaluates to a NULL value
|
|
# or any other value that cannot be losslessly converted to an integer,
|
|
# an error is returned.
|
|
#
|
|
|
|
do_select_tests e_select-9.2 -error "datatype mismatch" {
|
|
1 { SELECT b FROM f1 ORDER BY a LIMIT 'hello' } {}
|
|
2 { SELECT b FROM f1 ORDER BY a LIMIT NULL } {}
|
|
3 { SELECT b FROM f1 ORDER BY a LIMIT X'ABCD' } {}
|
|
4 { SELECT b FROM f1 ORDER BY a LIMIT 5.1 } {}
|
|
5 { SELECT b FROM f1 ORDER BY a LIMIT (SELECT group_concat(b) FROM f1) } {}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-03014-26414 If the LIMIT expression evaluates to a
|
|
# negative value, then there is no upper bound on the number of rows
|
|
# returned.
|
|
#
|
|
do_select_tests e_select-9.4 {
|
|
1 { SELECT b FROM f1 ORDER BY a LIMIT -1 }
|
|
{a b c d e f g h i j k l m n o p q r s t u v w x y z}
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2 { SELECT b FROM f1 ORDER BY a LIMIT length('abc')-100 }
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{a b c d e f g h i j k l m n o p q r s t u v w x y z}
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3 { SELECT b FROM f1 ORDER BY a LIMIT (SELECT count(*) FROM f1)/2 - 14 }
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{a b c d e f g h i j k l m n o p q r s t u v w x y z}
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}
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|
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# EVIDENCE-OF: R-33750-29536 Otherwise, the SELECT returns the first N
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|
# rows of its result set only, where N is the value that the LIMIT
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|
# expression evaluates to.
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#
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do_select_tests e_select-9.5 {
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1 { SELECT b FROM f1 ORDER BY a LIMIT 0 } {}
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2 { SELECT b FROM f1 ORDER BY a DESC LIMIT 4 } {z y x w}
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3 { SELECT b FROM f1 ORDER BY a DESC LIMIT 8 } {z y x w v u t s}
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|
4 { SELECT b FROM f1 ORDER BY a DESC LIMIT '12.0' } {z y x w v u t s r q p o}
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|
}
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|
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|
# EVIDENCE-OF: R-54935-19057 Or, if the SELECT statement would return
|
|
# less than N rows without a LIMIT clause, then the entire result set is
|
|
# returned.
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|
#
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|
do_select_tests e_select-9.6 {
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|
1 { SELECT b FROM f1 WHERE a>21 ORDER BY a LIMIT 10 } {v w x y z}
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|
2 { SELECT count(*) FROM f1 GROUP BY a/5 ORDER BY 1 LIMIT 10 } {2 4 5 5 5 5}
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|
}
|
|
|
|
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|
# EVIDENCE-OF: R-24188-24349 The expression attached to the optional
|
|
# OFFSET clause that may follow a LIMIT clause must also evaluate to an
|
|
# integer, or a value that can be losslessly converted to an integer.
|
|
#
|
|
foreach {tn select} {
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|
1 { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET 'hello' }
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|
2 { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET NULL }
|
|
3 { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET X'ABCD' }
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|
4 { SELECT b FROM f1 ORDER BY a LIMIT 2 OFFSET 5.1 }
|
|
5 { SELECT b FROM f1 ORDER BY a
|
|
LIMIT 2 OFFSET (SELECT group_concat(b) FROM f1)
|
|
}
|
|
} {
|
|
do_catchsql_test e_select-9.7.$tn $select {1 {datatype mismatch}}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-20467-43422 If an expression has an OFFSET clause, then
|
|
# the first M rows are omitted from the result set returned by the
|
|
# SELECT statement and the next N rows are returned, where M and N are
|
|
# the values that the OFFSET and LIMIT clauses evaluate to,
|
|
# respectively.
|
|
#
|
|
do_select_tests e_select-9.8 {
|
|
1 { SELECT b FROM f1 ORDER BY a LIMIT 10 OFFSET 5} {f g h i j k l m n o}
|
|
2 { SELECT b FROM f1 ORDER BY a LIMIT 2+3 OFFSET 10} {k l m n o}
|
|
3 { SELECT b FROM f1 ORDER BY a
|
|
LIMIT (SELECT a FROM f1 WHERE b='j')
|
|
OFFSET (SELECT a FROM f1 WHERE b='b')
|
|
} {c d e f g h i j k l}
|
|
4 { SELECT b FROM f1 ORDER BY a LIMIT '5' OFFSET 3.0 } {d e f g h}
|
|
5 { SELECT b FROM f1 ORDER BY a LIMIT '5' OFFSET 0 } {a b c d e}
|
|
6 { SELECT b FROM f1 ORDER BY a LIMIT 0 OFFSET 10 } {}
|
|
7 { SELECT b FROM f1 ORDER BY a LIMIT 3 OFFSET '1'||'5' } {p q r}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-34648-44875 Or, if the SELECT would return less than
|
|
# M+N rows if it did not have a LIMIT clause, then the first M rows are
|
|
# skipped and the remaining rows (if any) are returned.
|
|
#
|
|
do_select_tests e_select-9.9 {
|
|
1 { SELECT b FROM f1 ORDER BY a LIMIT 10 OFFSET 20} {u v w x y z}
|
|
2 { SELECT a FROM f1 ORDER BY a DESC LIMIT 100 OFFSET 18+4} {4 3 2 1}
|
|
}
|
|
|
|
|
|
# EVIDENCE-OF: R-23293-62447 If the OFFSET clause evaluates to a
|
|
# negative value, the results are the same as if it had evaluated to
|
|
# zero.
|
|
#
|
|
do_select_tests e_select-9.10 {
|
|
1 { SELECT b FROM f1 ORDER BY a LIMIT 5 OFFSET -1 } {a b c d e}
|
|
2 { SELECT b FROM f1 ORDER BY a LIMIT 5 OFFSET -500 } {a b c d e}
|
|
3 { SELECT b FROM f1 ORDER BY a LIMIT 5 OFFSET 0 } {a b c d e}
|
|
}
|
|
|
|
# EVIDENCE-OF: R-19509-40356 Instead of a separate OFFSET clause, the
|
|
# LIMIT clause may specify two scalar expressions separated by a comma.
|
|
#
|
|
# EVIDENCE-OF: R-33788-46243 In this case, the first expression is used
|
|
# as the OFFSET expression and the second as the LIMIT expression.
|
|
#
|
|
do_select_tests e_select-9.11 {
|
|
1 { SELECT b FROM f1 ORDER BY a LIMIT 5, 10 } {f g h i j k l m n o}
|
|
2 { SELECT b FROM f1 ORDER BY a LIMIT 10, 2+3 } {k l m n o}
|
|
3 { SELECT b FROM f1 ORDER BY a
|
|
LIMIT (SELECT a FROM f1 WHERE b='b'), (SELECT a FROM f1 WHERE b='j')
|
|
} {c d e f g h i j k l}
|
|
4 { SELECT b FROM f1 ORDER BY a LIMIT 3.0, '5' } {d e f g h}
|
|
5 { SELECT b FROM f1 ORDER BY a LIMIT 0, '5' } {a b c d e}
|
|
6 { SELECT b FROM f1 ORDER BY a LIMIT 10, 0 } {}
|
|
7 { SELECT b FROM f1 ORDER BY a LIMIT '1'||'5', 3 } {p q r}
|
|
|
|
8 { SELECT b FROM f1 ORDER BY a LIMIT 20, 10 } {u v w x y z}
|
|
9 { SELECT a FROM f1 ORDER BY a DESC LIMIT 18+4, 100 } {4 3 2 1}
|
|
|
|
10 { SELECT b FROM f1 ORDER BY a LIMIT -1, 5 } {a b c d e}
|
|
11 { SELECT b FROM f1 ORDER BY a LIMIT -500, 5 } {a b c d e}
|
|
12 { SELECT b FROM f1 ORDER BY a LIMIT 0, 5 } {a b c d e}
|
|
}
|
|
|
|
finish_test
|