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At the end of the right-hand table loop of a LEFT JOIN that uses an IN

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operator in the ON clause, put the OP_IfNoHope operator after the
OP_IfNotOpen operator, not before, to avoid a (harmless) uninitialized
register reference.  Ticket [82b588d342d515d1]

FossilOrigin-Name: 8b437b47266ec2d80d85eafcfdd6949556d6c28d9d67d5f43d89799f0f5b7bd0
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drh
2020-03-16 03:07:53 +00:00
parent ba25c7e29f
commit 14c98a4f40
4 changed files with 36 additions and 15 deletions
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20
test/in6.test
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@ -77,4 +77,24 @@ do_execsql_test in6-2.1 {
ORDER BY +d;
} {1 {} 2 {} 3 {} 4 {} 5 {} 8 {} 9 {}}
# 2020-03-16 ticket 82b588d342d515d1
# Ensure that the IN-early-out optimization works with LEFT JOINs
#
reset_db
do_execsql_test in6-3.100 {
CREATE TABLE t1(a);
INSERT INTO t1 VALUES(0);
CREATE TABLE t2(b, c, d);
INSERT INTO t2(b,c,d) VALUES(4,5,3),(4,5,4),(4,5,8);
CREATE INDEX t2bcd ON t2(b, c, d);
SELECT * FROM t1 LEFT JOIN t2 ON b=NULL AND c=5 AND d IN (2,3,4);
} {0 {} {} {}}
do_execsql_test in6-3.110 {
CREATE TABLE v0(v1);
CREATE TABLE v3(v5, v4);
INSERT INTO v0 VALUES(0);
CREATE INDEX v9 ON v3(v4, v4, v5);
SELECT quote(v5) FROM v0 LEFT JOIN v3 ON v4 = NULL AND v5 IN(0);
} {NULL}
finish_test