249 lines
5.7 KiB
Plaintext
249 lines
5.7 KiB
Plaintext
# 2020-12-16
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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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# This file implements regression tests for SQLite library. The
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# focus of this file is flattening UNION ALL sub-queries.
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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 unionall
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do_execsql_test 1.0 {
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CREATE TABLE t1_a(a INTEGER PRIMARY KEY, b TEXT);
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CREATE TABLE t1_b(c INTEGER PRIMARY KEY, d TEXT);
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CREATE TABLE t1_c(e INTEGER PRIMARY KEY, f TEXT);
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INSERT INTO t1_a VALUES(1, 'one'), (4, 'four');
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INSERT INTO t1_b VALUES(2, 'two'), (5, 'five');
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INSERT INTO t1_c VALUES(3, 'three'), (6, 'six');
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CREATE VIEW t1 AS
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SELECT a, b FROM t1_a UNION ALL
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SELECT c, d FROM t1_b UNION ALL
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SELECT e, f FROM t1_c;
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CREATE TABLE i1(x);
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INSERT INTO i1 VALUES(2), (5), (6), (1);
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}
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do_execsql_test 1.1 {
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SELECT a, b FROM (
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SELECT a, b FROM t1_a UNION ALL
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SELECT c, d FROM t1_b UNION ALL
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SELECT e, f FROM t1_c
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) ORDER BY a
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} {
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1 one 2 two 3 three 4 four 5 five 6 six
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}
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do_execsql_test 1.2 {
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SELECT a, b FROM t1 ORDER BY a
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} {
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1 one 2 two 3 three 4 four 5 five 6 six
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}
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do_execsql_test 1.3 {
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SELECT a, b FROM i1, t1 WHERE a=x ORDER BY a
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} {1 one 2 two 5 five 6 six}
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#-------------------------------------------------------------------------
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reset_db
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do_execsql_test 2.1.0 {
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CREATE TABLE t1(x, y);
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INSERT INTO t1 VALUES(1, 'one');
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INSERT INTO t1 VALUES(1, 'ONE');
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INSERT INTO t1 VALUES(2, 'two');
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INSERT INTO t1 VALUES(2, 'TWO');
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INSERT INTO t1 VALUES(3, 'three');
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INSERT INTO t1 VALUES(3, 'THREE');
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}
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do_execsql_test 2.1.1 {
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WITH s(i) AS (
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SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<3
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)
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SELECT * FROM (
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SELECT 0 AS i UNION ALL SELECT i FROM s UNION ALL SELECT 0
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), t1 WHERE x=i;
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} {
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1 1 one 1 1 ONE 2 2 two 2 2 TWO 3 3 three 3 3 THREE
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}
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do_catchsql_test 2.1.2 {
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WITH s(i) AS (
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SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<3 UNION ALL SELECT 4
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)
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SELECT * FROM s, t1 WHERE x=i;
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} {1 {circular reference: s}}
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do_execsql_test 2.2.0 {
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CREATE TABLE t2_a(k INTEGER PRIMARY KEY, v TEXT);
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CREATE TABLE t2_b(k INTEGER PRIMARY KEY, v TEXT);
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CREATE VIEW t2 AS
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SELECT * FROM t2_a
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UNION ALL
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SELECT * FROM t2_b;
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CREATE TRIGGER t2_insert INSTEAD OF INSERT ON t2 BEGIN
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INSERT INTO t2_a SELECT new.k, new.v WHERE (new.k%2)==0;
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INSERT INTO t2_b SELECT new.k, new.v WHERE (new.k%2)==1;
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END;
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INSERT INTO t2 VALUES(5, 'v'), (4, 'iv'), (3, 'iii'), (2, 'ii');
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}
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do_execsql_test 2.2.1 {
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SELECT * FROM t1, t2 WHERE x=k;
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} {
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2 two 2 ii 2 TWO 2 ii 3 three 3 iii 3 THREE 3 iii
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}
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do_execsql_test 2.2.2 {
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SELECT * FROM t1 LEFT JOIN t2 ON (x=k);
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} {
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1 one {} {}
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1 ONE {} {}
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2 two 2 ii 2 TWO 2 ii 3 three 3 iii 3 THREE 3 iii
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}
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do_execsql_test 2.2.3 {
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SELECT x1.*, x2.* FROM t2 AS x1, t2 AS x2 WHERE x1.k=x2.k+1
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} {
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4 iv 3 iii
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3 iii 2 ii
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5 v 4 iv
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}
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do_execsql_test 2.2.4 {
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SELECT * FROM t1, t2 WHERE x=k ORDER BY y;
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} {
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3 THREE 3 iii
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2 TWO 2 ii
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3 three 3 iii
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2 two 2 ii
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}
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do_execsql_test 2.2.5 {
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SELECT * FROM t1, t2 WHERE x=k ORDER BY y||'';
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} {
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3 THREE 3 iii
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2 TWO 2 ii
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3 three 3 iii
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2 two 2 ii
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}
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do_execsql_test 2.2.6 {
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SELECT * FROM t1, t2 WHERE x=k ORDER BY v
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} {
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2 two 2 ii
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2 TWO 2 ii
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3 three 3 iii
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3 THREE 3 iii
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}
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do_execsql_test 2.2.7 {
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SELECT * FROM t1, t2 WHERE x=k ORDER BY v||''
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} {
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2 two 2 ii
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2 TWO 2 ii
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3 three 3 iii
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3 THREE 3 iii
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}
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do_execsql_test 2.2.8 {
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SELECT * FROM t1, t2 WHERE x=k ORDER BY k,v||''
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} {
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2 two 2 ii
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2 TWO 2 ii
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3 three 3 iii
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3 THREE 3 iii
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}
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do_execsql_test 2.2.9a {
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SELECT * FROM t1, t2 ORDER BY +k
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} {
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1 one 2 ii 1 ONE 2 ii 2 two 2 ii
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2 TWO 2 ii 3 three 2 ii 3 THREE 2 ii
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1 one 3 iii 1 ONE 3 iii 2 two 3 iii
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2 TWO 3 iii 3 three 3 iii 3 THREE 3 iii
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1 one 4 iv 1 ONE 4 iv 2 two 4 iv
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2 TWO 4 iv 3 three 4 iv 3 THREE 4 iv
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1 one 5 v 1 ONE 5 v 2 two 5 v
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2 TWO 5 v 3 three 5 v 3 THREE 5 v
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}
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do_execsql_test 2.2.9b {
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SELECT * FROM t1, t2 ORDER BY k
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} {
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1 one 2 ii 1 ONE 2 ii 2 two 2 ii
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2 TWO 2 ii 3 three 2 ii 3 THREE 2 ii
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1 one 3 iii 1 ONE 3 iii 2 two 3 iii
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2 TWO 3 iii 3 three 3 iii 3 THREE 3 iii
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1 one 4 iv 1 ONE 4 iv 2 two 4 iv
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2 TWO 4 iv 3 three 4 iv 3 THREE 4 iv
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1 one 5 v 1 ONE 5 v 2 two 5 v
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2 TWO 5 v 3 three 5 v 3 THREE 5 v
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}
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#-------------------------------------------------------------------------
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reset_db
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do_execsql_test 3.0 {
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CREATE TABLE t1(c INTEGER PRIMARY KEY, d TEXT);
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INSERT INTO t1 VALUES(1,2);
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CREATE TABLE t3_a(k INTEGER PRIMARY KEY, v TEXT);
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INSERT INTO t3_a VALUES(2,'ii');
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CREATE TABLE t3_b(k INTEGER PRIMARY KEY, v TEXT);
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CREATE VIEW t3 AS
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SELECT * FROM t3_a
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UNION ALL
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SELECT * FROM t3_b;
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} {}
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do_execsql_test 3.1 {
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SELECT * FROM t1, t3 ORDER BY k;
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} {1 2 2 ii}
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reset_db
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do_execsql_test 4.0 {
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CREATE TABLE t1_a(a INTEGER PRIMARY KEY, b TEXT);
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INSERT INTO t1_a VALUES(123, 't1_a');
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CREATE TABLE t1_b(c INTEGER PRIMARY KEY, d TEXT);
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CREATE VIEW t1 AS
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SELECT a, b FROM t1_a
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UNION ALL
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SELECT c, d FROM t1_b;
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CREATE TABLE t3_a(k INTEGER PRIMARY KEY, v TEXT);
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INSERT INTO t3_a VALUES(456, 't3_a');
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CREATE TABLE t3_b(k INTEGER PRIMARY KEY, v TEXT);
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CREATE VIEW t3 AS
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SELECT * FROM t3_a
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UNION ALL
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SELECT * FROM t3_b;
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}
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do_execsql_test 4.1 {
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SELECT * FROM t1, t3 ORDER BY k;
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} {123 t1_a 456 t3_a}
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do_execsql_test 4.2 {
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SELECT * FROM (SELECT * FROM t1, t3) ORDER BY k;
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} {123 t1_a 456 t3_a}
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finish_test
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