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Fix problems with joining UNION ALL sub-queries against other sub-queries that contain LEFT JOIN.

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FossilOrigin-Name: d554f710a5abbe64022f47a14ef67227c861a8f0991d85d240434e9a709cf8b8
This commit is contained in:
dan
2020-12-21 19:50:10 +00:00
parent a3d33ebe4a
commit 961a72601b
6 changed files with 63 additions and 12 deletions
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8
test/unionall.test
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@ -275,4 +275,12 @@ do_execsql_test 4.3 {
123 t1_a 456 t3_a 123 123 123 123 123 123 123 123 123
}
do_execsql_test 4.3 {
SELECT * FROM (SELECT * FROM t1, t3) AS o, (
SELECT * FROM t1 LEFT JOIN t3 ON a=k
);
} {
123 t1_a 456 t3_a 123 t1_a {} {}
}
finish_test

39
test/unionall2.test Normal file
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@ -0,0 +1,39 @@
# 2020-12-22
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
# This file implements regression tests for SQLite library. The
# focus of this file is flattening UNION ALL sub-queries.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set testprefix unionall2
do_execsql_test 1.0 {
CREATE TABLE t1(a, b);
CREATE TABLE t2(c, d);
CREATE VIEW v1 AS SELECT * FROM t1, t2;
CREATE VIEW v2 AS SELECT * FROM t1, t2;
CREATE VIEW vA AS
SELECT * FROM v1, (
SELECT * FROM t1 LEFT JOIN t2 ON (a=c)
)
UNION ALL
SELECT * FROM v1, v2
}
do_execsql_test 1.1 {
SELECT 1 FROM vA, vA, vA, vA, vA, vA, vA, vA, vA, vA
}
finish_test