419 lines
9.7 KiB
Plaintext
419 lines
9.7 KiB
Plaintext
# 2014 January 11
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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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# This file implements regression tests for SQLite library. The
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# focus of this file is testing the WITH clause.
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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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set ::testprefix with2
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ifcapable {!cte} {
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finish_test
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return
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}
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do_execsql_test 1.0 {
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CREATE TABLE t1(a);
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INSERT INTO t1 VALUES(1);
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INSERT INTO t1 VALUES(2);
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}
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do_execsql_test 1.1 {
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WITH x1 AS (SELECT * FROM t1)
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SELECT sum(a) FROM x1;
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} {3}
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do_execsql_test 1.2 {
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WITH x1 AS (SELECT * FROM t1)
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SELECT (SELECT sum(a) FROM x1);
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} {3}
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do_execsql_test 1.3 {
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WITH x1 AS (SELECT * FROM t1)
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SELECT (SELECT sum(a) FROM x1);
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} {3}
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do_execsql_test 1.4 {
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CREATE TABLE t2(i);
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INSERT INTO t2 VALUES(2);
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INSERT INTO t2 VALUES(3);
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INSERT INTO t2 VALUES(5);
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WITH x1 AS (SELECT i FROM t2),
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i(a) AS (
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SELECT min(i)-1 FROM x1 UNION SELECT a+1 FROM i WHERE a<10
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)
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SELECT a FROM i WHERE a NOT IN x1
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} {1 4 6 7 8 9 10}
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do_execsql_test 1.5 {
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WITH x1 AS (SELECT a FROM t1),
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x2 AS (SELECT i FROM t2),
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x3 AS (SELECT * FROM x1, x2 WHERE x1.a IN x2 AND x2.i IN x1)
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SELECT * FROM x3
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} {2 2}
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do_execsql_test 1.6 {
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CREATE TABLE t3 AS SELECT 3 AS x;
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CREATE TABLE t4 AS SELECT 4 AS x;
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WITH x1 AS (SELECT * FROM t3),
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x2 AS (
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WITH t3 AS (SELECT * FROM t4)
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SELECT * FROM x1
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)
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SELECT * FROM x2;
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} {3}
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do_execsql_test 1.7 {
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WITH x2 AS (
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WITH t3 AS (SELECT * FROM t4)
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SELECT * FROM t3
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)
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SELECT * FROM x2;
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} {4}
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do_execsql_test 1.8 {
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WITH x2 AS (
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WITH t3 AS (SELECT * FROM t4)
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SELECT * FROM main.t3
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)
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SELECT * FROM x2;
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} {3}
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do_execsql_test 1.9 {
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WITH x1 AS (SELECT * FROM t1)
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SELECT (SELECT sum(a) FROM x1), (SELECT max(a) FROM x1);
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} {3 2}
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do_execsql_test 1.10 {
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WITH x1 AS (SELECT * FROM t1)
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SELECT (SELECT sum(a) FROM x1), (SELECT max(a) FROM x1), a FROM x1;
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} {3 2 1 3 2 2}
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do_execsql_test 1.11 {
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WITH
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i(x) AS (
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WITH
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j(x) AS ( SELECT * FROM i ),
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i(x) AS ( SELECT * FROM t1 )
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SELECT * FROM j
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)
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SELECT * FROM i;
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} {1 2}
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do_execsql_test 1.12 {
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WITH r(i) AS (
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VALUES('.')
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UNION ALL
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SELECT i || '.' FROM r, (
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SELECT x FROM x INTERSECT SELECT y FROM y
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) WHERE length(i) < 10
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),
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x(x) AS ( VALUES(1) UNION ALL VALUES(2) UNION ALL VALUES(3) ),
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y(y) AS ( VALUES(2) UNION ALL VALUES(4) UNION ALL VALUES(6) )
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SELECT * FROM r;
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} {. .. ... .... ..... ...... ....... ........ ......... ..........}
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do_execsql_test 1.13 {
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WITH r(i) AS (
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VALUES('.')
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UNION ALL
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SELECT i || '.' FROM r, ( SELECT x FROM x WHERE x=2 ) WHERE length(i) < 10
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),
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x(x) AS ( VALUES(1) UNION ALL VALUES(2) UNION ALL VALUES(3) )
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SELECT * FROM r ORDER BY length(i) DESC;
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} {.......... ......... ........ ....... ...... ..... .... ... .. .}
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do_execsql_test 1.14 {
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WITH
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t4(x) AS (
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VALUES(4)
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UNION ALL
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SELECT x+1 FROM t4 WHERE x<10
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)
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SELECT * FROM t4;
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} {4 5 6 7 8 9 10}
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do_execsql_test 1.15 {
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WITH
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t4(x) AS (
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VALUES(4)
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UNION ALL
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SELECT x+1 FROM main.t4 WHERE x<10
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)
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SELECT * FROM t4;
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} {4 5}
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do_catchsql_test 1.16 {
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WITH
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t4(x) AS (
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VALUES(4)
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UNION ALL
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SELECT x+1 FROM t4, main.t4, t4 WHERE x<10
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)
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SELECT * FROM t4;
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} {1 {multiple references to recursive table: t4}}
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#---------------------------------------------------------------------------
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# Check that variables can be used in CTEs.
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#
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set ::min [expr 3]
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set ::max [expr 9]
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do_execsql_test 2.1 {
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WITH i(x) AS (
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VALUES($min) UNION ALL SELECT x+1 FROM i WHERE x < $max
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)
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SELECT * FROM i;
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} {3 4 5 6 7 8 9}
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do_execsql_test 2.2 {
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WITH i(x) AS (
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VALUES($min) UNION ALL SELECT x+1 FROM i WHERE x < $max
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)
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SELECT x FROM i JOIN i AS j USING (x);
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} {3 4 5 6 7 8 9}
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#---------------------------------------------------------------------------
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# Check that circular references are rejected.
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#
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do_catchsql_test 3.1 {
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WITH i(x, y) AS ( VALUES(1, (SELECT x FROM i)) )
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SELECT * FROM i;
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} {1 {circular reference: i}}
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do_catchsql_test 3.2 {
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WITH
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i(x) AS ( SELECT * FROM j ),
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j(x) AS ( SELECT * FROM k ),
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k(x) AS ( SELECT * FROM i )
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SELECT * FROM i;
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} {1 {circular reference: i}}
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do_catchsql_test 3.3 {
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WITH
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i(x) AS ( SELECT * FROM (SELECT * FROM j) ),
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j(x) AS ( SELECT * FROM (SELECT * FROM i) )
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SELECT * FROM i;
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} {1 {circular reference: i}}
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do_catchsql_test 3.4 {
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WITH
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i(x) AS ( SELECT * FROM (SELECT * FROM j) ),
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j(x) AS ( SELECT * FROM (SELECT * FROM i) )
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SELECT * FROM j;
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} {1 {circular reference: j}}
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do_catchsql_test 3.5 {
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WITH
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i(x) AS (
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WITH j(x) AS ( SELECT * FROM i )
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SELECT * FROM j
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)
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SELECT * FROM i;
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} {1 {circular reference: i}}
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#---------------------------------------------------------------------------
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# Try empty and very long column lists.
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#
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do_catchsql_test 4.1 {
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WITH x() AS ( SELECT 1,2,3 )
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SELECT * FROM x;
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} {1 {near ")": syntax error}}
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proc genstmt {n} {
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for {set i 1} {$i<=$n} {incr i} {
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lappend cols "c$i"
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lappend vals $i
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}
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return "
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WITH x([join $cols ,]) AS (SELECT [join $vals ,])
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SELECT (c$n == $n) FROM x
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"
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}
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do_execsql_test 4.2 [genstmt 10] 1
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do_execsql_test 4.3 [genstmt 100] 1
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do_execsql_test 4.4 [genstmt 255] 1
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set nLimit [sqlite3_limit db SQLITE_LIMIT_COLUMN -1]
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do_execsql_test 4.5 [genstmt [expr $nLimit-1]] 1
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do_execsql_test 4.6 [genstmt $nLimit] 1
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do_catchsql_test 4.7 [genstmt [expr $nLimit+1]] {1 {too many columns in index}}
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#---------------------------------------------------------------------------
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# Check that adding a WITH clause to an INSERT disables the xfer
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# optimization.
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#
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proc do_xfer_test {tn bXfer sql {res {}}} {
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set ::sqlite3_xferopt_count 0
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uplevel [list do_test $tn [subst -nocommands {
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set dres [db eval {$sql}]
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list [set ::sqlite3_xferopt_count] [set dres]
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}] [list $bXfer $res]]
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}
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do_execsql_test 5.1 {
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DROP TABLE IF EXISTS t1;
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DROP TABLE IF EXISTS t2;
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CREATE TABLE t1(a, b);
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CREATE TABLE t2(a, b);
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}
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do_xfer_test 5.2 1 { INSERT INTO t1 SELECT * FROM t2 }
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do_xfer_test 5.3 0 { INSERT INTO t1 SELECT a, b FROM t2 }
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do_xfer_test 5.4 0 { INSERT INTO t1 SELECT b, a FROM t2 }
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do_xfer_test 5.5 0 {
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WITH x AS (SELECT a, b FROM t2) INSERT INTO t1 SELECT * FROM x
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}
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do_xfer_test 5.6 0 {
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WITH x AS (SELECT a, b FROM t2) INSERT INTO t1 SELECT * FROM t2
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}
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do_xfer_test 5.7 0 {
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INSERT INTO t1 WITH x AS ( SELECT * FROM t2 ) SELECT * FROM x
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}
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do_xfer_test 5.8 0 {
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INSERT INTO t1 WITH x(a,b) AS ( SELECT * FROM t2 ) SELECT * FROM x
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}
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#---------------------------------------------------------------------------
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# Check that syntax (and other) errors in statements with WITH clauses
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# attached to them do not cause problems (e.g. memory leaks).
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#
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do_execsql_test 6.1 {
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DROP TABLE IF EXISTS t1;
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DROP TABLE IF EXISTS t2;
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CREATE TABLE t1(a, b);
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CREATE TABLE t2(a, b);
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}
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do_catchsql_test 6.2 {
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WITH x AS (SELECT * FROM t1)
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INSERT INTO t2 VALUES(1, 2,);
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} {1 {near ")": syntax error}}
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do_catchsql_test 6.3 {
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WITH x AS (SELECT * FROM t1)
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INSERT INTO t2 SELECT a, b, FROM t1;
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} {1 {near "FROM": syntax error}}
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do_catchsql_test 6.3 {
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WITH x AS (SELECT * FROM t1)
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INSERT INTO t2 SELECT a, b FROM abc;
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} {1 {no such table: abc}}
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do_catchsql_test 6.4 {
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WITH x AS (SELECT * FROM t1)
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INSERT INTO t2 SELECT a, b, FROM t1 a a a;
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} {1 {near "FROM": syntax error}}
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do_catchsql_test 6.5 {
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WITH x AS (SELECT * FROM t1)
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DELETE FROM t2 WHERE;
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} {1 {near ";": syntax error}}
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do_catchsql_test 6.6 {
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WITH x AS (SELECT * FROM t1) DELETE FROM t2 WHERE
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} {/1 {near .* syntax error}/}
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do_catchsql_test 6.7 {
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WITH x AS (SELECT * FROM t1) DELETE FROM t2 WHRE 1;
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} {/1 {near .* syntax error}/}
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do_catchsql_test 6.8 {
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WITH x AS (SELECT * FROM t1) UPDATE t2 SET a = 10, b = ;
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} {/1 {near .* syntax error}/}
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do_catchsql_test 6.9 {
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WITH x AS (SELECT * FROM t1) UPDATE t2 SET a = 10, b = 1 WHERE a===b;
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} {/1 {near .* syntax error}/}
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do_catchsql_test 6.10 {
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WITH x(a,b) AS (
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SELECT 1, 1
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UNION ALL
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SELECT a*b,a+b FROM x WHERE c=2
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)
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SELECT * FROM x
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} {1 {no such column: c}}
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#-------------------------------------------------------------------------
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# Recursive queries in IN(...) expressions.
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#
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do_execsql_test 7.1 {
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CREATE TABLE t5(x INTEGER);
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CREATE TABLE t6(y INTEGER);
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WITH s(x) AS ( VALUES(7) UNION ALL SELECT x+7 FROM s WHERE x<49 )
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INSERT INTO t5
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SELECT * FROM s;
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INSERT INTO t6
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WITH s(x) AS ( VALUES(2) UNION ALL SELECT x+2 FROM s WHERE x<49 )
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SELECT * FROM s;
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}
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do_execsql_test 7.2 {
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SELECT * FROM t6 WHERE y IN (SELECT x FROM t5)
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} {14 28 42}
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do_execsql_test 7.3 {
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WITH ss AS (SELECT x FROM t5)
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SELECT * FROM t6 WHERE y IN (SELECT x FROM ss)
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} {14 28 42}
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do_execsql_test 7.4 {
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WITH ss(x) AS ( VALUES(7) UNION ALL SELECT x+7 FROM ss WHERE x<49 )
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SELECT * FROM t6 WHERE y IN (SELECT x FROM ss)
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} {14 28 42}
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do_execsql_test 7.5 {
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SELECT * FROM t6 WHERE y IN (
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WITH ss(x) AS ( VALUES(7) UNION ALL SELECT x+7 FROM ss WHERE x<49 )
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SELECT x FROM ss
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)
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} {14 28 42}
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#-------------------------------------------------------------------------
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# At one point the following was causing an assertion failure and a
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# memory leak.
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#
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do_execsql_test 8.1 {
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CREATE TABLE t7(y);
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INSERT INTO t7 VALUES(NULL);
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CREATE VIEW v AS SELECT * FROM t7 ORDER BY y;
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}
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do_execsql_test 8.2 {
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WITH q(a) AS (
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SELECT 1
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UNION
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SELECT a+1 FROM q, v WHERE a<5
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)
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SELECT * FROM q;
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} {1 2 3 4 5}
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do_execsql_test 8.3 {
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WITH q(a) AS (
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SELECT 1
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UNION ALL
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SELECT a+1 FROM q, v WHERE a<5
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)
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SELECT * FROM q;
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} {1 2 3 4 5}
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finish_test
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