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Give the EXISTS-to-IN optimization the ability to handle some cases that

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involve vector comparisons, instead of throwing a mysterious error in those
cases.

FossilOrigin-Name: 87e78a19bb3ae1caf57aeeae53a5ab4efdccb57265f25d5c19b62eae53747aff
This commit is contained in:
drh
2021-01-16 18:55:10 +00:00
parent 2a3be742ca
commit 4be8bdccd4
4 changed files with 37 additions and 12 deletions
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19
test/exists2.test
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@ -156,8 +156,25 @@ do_execsql_eqp_test 2.7 {
four one
}
# EXISTS clauses using vector expressions in the WHERE clause.
#
reset_db
do_execsql_test 3.0 {
CREATE TABLE t1(a,b);
INSERT INTO t1(a,b) VALUES(1,111),(2,222),(8,888);
CREATE TABLE t2(x INTEGER PRIMARY KEY, y);
INSERT INTO t2(x,y) VALUES(2,222),(3,333),(7,333);
SELECT y FROM t2 WHERE EXISTS(SELECT 1 FROM t1 WHERE (x,y)=(a,b));
} {222}
do_execsql_test 3.1 {
SELECT y FROM t2 WHERE EXISTS(SELECT 1 FROM t1 WHERE (a,b)=(x,y));
} {222}
do_execsql_test 3.2 {
SELECT y FROM t2 WHERE EXISTS(SELECT 1 FROM t1 WHERE (x,b)=(a,y));
} {222}
finish_test