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Avoid assuming that an expression that contains the sub-expression (? IS FALSE) or (? IS TRUE) may only be true if ? is non-null. Fix for [a976c487].

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FossilOrigin-Name: eb7ed90b8a65748f0721aaf7bdddd2207f552be5015603fbfb7044d815ae2f36
This commit is contained in:
dan
2019-10-09 21:14:00 +00:00
parent ae55737fbf
commit da03c1e65e
4 changed files with 32 additions and 8 deletions
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22
test/join.test
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@ -884,4 +884,26 @@ do_execsql_test join-17.110 {
WHERE NOT(y='a');
} {1 3 1 3}
#-------------------------------------------------------------------------
reset_db
do_execsql_test join-18.1 {
CREATE TABLE t0(a);
CREATE TABLE t1(b);
CREATE VIEW v0 AS SELECT a FROM t1 LEFT JOIN t0;
INSERT INTO t1 VALUES (1);
} {}
do_execsql_test join-18.2 {
SELECT * FROM v0 WHERE NOT(v0.a IS FALSE);
} {{}}
do_execsql_test join-18.3 {
SELECT * FROM t1 LEFT JOIN t0 WHERE NOT(a IS FALSE);
} {1 {}}
do_execsql_test join-18.4 {
SELECT NOT(v0.a IS FALSE) FROM v0
} {1}
finish_test