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Fix the Bloom filter pull-down optimization so that it jumps to the correct

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place if it encounters a NULL key.  Fix for the bug described by
[forum:/forumpost/2482b32700384a0f|forum thread 2482b32700384a0f].

FossilOrigin-Name: 6eda9b1a7784cf6d58c8876551f67ab98e78a08e726a0579d4def5ba881985bb
This commit is contained in:
drh
2022-05-03 14:01:48 +00:00
parent 207f626356
commit 8aa7f4d813
4 changed files with 43 additions and 8 deletions
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32
test/join5.test
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@ -393,6 +393,38 @@ do_execsql_test 11.4 {
SELECT count(*) FROM t1 LEFT JOIN t2 ON c=b WHERE d>=300;
} {2}
# 2022-05-03 https://sqlite.org/forum/forumpost/2482b32700384a0f
# Bloom-filter pull-down does not handle NOT NULL constraints correctly.
#
reset_db
do_execsql_test 12.1 {
CREATE TABLE t1(a INT, b INT, c INT);
WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
INSERT INTO t1(a,b,c) SELECT x, x*1000, x*1000000 FROM c;
CREATE TABLE t2(b INT, x INT);
INSERT INTO t2(b,x) SELECT b, a FROM t1 WHERE a%3==0;
CREATE INDEX t2b ON t2(b);
CREATE TABLE t3(c INT, y INT);
INSERT INTO t3(c,y) SELECT c, a FROM t1 WHERE a%4==0;
CREATE INDEX t3c ON t3(c);
INSERT INTO t1(a,b,c) VALUES(200, 200000, NULL);
ANALYZE;
} {}
do_execsql_test 12.2 {
SELECT * FROM t1 NATURAL JOIN t2 NATURAL JOIN t3 WHERE x>0 AND y>0
ORDER BY +a;
} {
12 12000 12000000 12 12
24 24000 24000000 24 24
36 36000 36000000 36 36
48 48000 48000000 48 48
60 60000 60000000 60 60
72 72000 72000000 72 72
84 84000 84000000 84 84
96 96000 96000000 96 96
}
finish_test