database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-08-01 06:27:03 +03:00
Code Activity

Fix the sqlite3ExprImpliesNonNullRow() routine so that it correctly

Browse Source 
handles a numeric comparison of two AND subexpressions.

FossilOrigin-Name: 07e504d5174a1a8b1aa05ec5b44ac81ab3ea706c5a098caa88deb3d489cec8fb
This commit is contained in:
drh
2020-01-01 16:43:41 +00:00
parent 171c50ec38
commit aef8167421
4 changed files with 34 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
test/expr.test
View File

@ -1036,4 +1036,24 @@ foreach {tn val} [list 1 NaN 2 -NaN 3 NaN0 4 -NaN0 5 Inf 6 -Inf] {
} {0}
}
reset_db
sqlite3_test_control SQLITE_TESTCTRL_INTERNAL_FUNCTIONS db
do_execsql_test expr-16.1 {
CREATE TABLE t1(a,b,c);
CREATE TABLE dual(dummy);
INSERT INTO dual VALUES('X');
} {}
do_execsql_test expr-16.100 {
SELECT implies_nonnull_row( (b=1 AND 0)>(b=3 AND 0),a)
FROM dual LEFT JOIN t1;
} {0}
do_execsql_test expr-16.101 {
SELECT implies_nonnull_row( (b=1 AND 0)>(b=3 AND a=4),a)
FROM dual LEFT JOIN t1;
} {1}
do_execsql_test expr-16.102 {
SELECT implies_nonnull_row( (b=1 AND a=2)>(b=3 AND a=4),a)
FROM dual LEFT JOIN t1;
} {1}
finish_test