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Fix Bloom filters on an expression index.

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[forum:/forumpost/2e427099d5|forum post 2e427099d5] and
[forum:/forumpost/d47a0e8e3a|forum post d47a0e8e3a].

FossilOrigin-Name: c028fb669a5ae34dbaf50fffab1ae49bc568b994435cf02e145d24da3cfb48d7
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drh
2023-03-14 20:08:39 +00:00
parent bf7602a7d8
commit cdfb518f6f
5 changed files with 56 additions and 13 deletions
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40
test/bloom1.test
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@ -145,6 +145,44 @@ do_eqp_test 3.4 {
`--SEARCH t1 USING AUTOMATIC PARTIAL COVERING INDEX (x=?)
}
# 2023-03-14
# https://sqlite.org/forum/forumpost/d47a0e8e3a
# https://sqlite.org/forum/forumpost/2e427099d5
#
# Both reports are for the same problem - using a Bloom filter on an
# expression index can cause issues.
#
reset_db
do_execsql_test 4.1 {
CREATE TABLE t1(x TEXT, y INT, z TEXT);
INSERT INTO t1(rowid,x,y,z) VALUES(12,'aa','bb','aa');
CREATE INDEX i1x ON t1(1 IS true,z);
CREATE TABLE t0(x TEXT);
INSERT INTO t0(rowid,x) VALUES(4,'aa');
ANALYZE sqlite_schema;
INSERT INTO sqlite_stat1 VALUES('t0',NULL,'20');
INSERT INTO sqlite_stat1 VALUES('t1','i1x','18 18 2');
ANALYZE sqlite_schema;
}
do_execsql_test 4.2 {
SELECT * FROM t0 NATURAL JOIN t1 WHERE z=t1.x;
} {aa bb aa}
do_execsql_test 4.3 {
DROP TABLE t0;
CREATE TABLE t0(a TEXT);
INSERT INTO t0 VALUES ('xyz');
CREATE INDEX t0x ON t0(a IS FALSE) WHERE false;
DROP TABLE t1;
CREATE TABLE t1(b INT);
INSERT INTO t1 VALUES('aaa'),('bbb'),('ccc'),('ddd'),(NULL);
CREATE TABLE t2(c REAL);
INSERT INTO t2 VALUES(7);
ANALYZE;
CREATE INDEX t2x ON t2(true IN ());
}
do_execsql_test 4.4 {
SELECT * FROM t0 LEFT JOIN t1 LEFT JOIN t2 ON (b NOTNULL)==(c IN ()) WHERE c;
} {xyz {} 7.0}
finish_test