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Overview
Comment: | The IS NOT NULL operator does not imply that the operand is never NULL. Fix for ticket [5948e09b8c415bc45da5cf] |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA3-256: |
d840e9bb023a1e84a7739d764a0f6cf6 |
User & Date: | drh 2019-02-05 14:36:33.250 |
Context
2019-02-05
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16:53 | Update the tester.tcl --malloctrace option so that it uses eu-addr2line instead of addr2line. (check-in: 79c073878d user: dan tags: trunk) | |
14:36 | The IS NOT NULL operator does not imply that the operand is never NULL. Fix for ticket [5948e09b8c415bc45da5cf] (check-in: d840e9bb02 user: drh tags: trunk) | |
12:16 | Keep the temp_store_directory and data_store_directory pragmas even when compiling with SQLITE_OMIT_DEPRECATED. (check-in: 93386a7c97 user: drh tags: trunk) | |
Changes
Changes to src/expr.c.
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4982 4983 4984 4985 4986 4987 4988 4989 4990 4991 4992 4993 4994 4995 4996 4997 4998 4999 5000 5001 5002 5003 | testcase( pExpr->op==TK_AGG_COLUMN ); testcase( pExpr->op==TK_AGG_FUNCTION ); if( ExprHasProperty(pExpr, EP_FromJoin) ) return WRC_Prune; switch( pExpr->op ){ case TK_ISNOT: case TK_NOT: case TK_ISNULL: case TK_IS: case TK_OR: case TK_CASE: case TK_IN: case TK_FUNCTION: testcase( pExpr->op==TK_ISNOT ); testcase( pExpr->op==TK_NOT ); testcase( pExpr->op==TK_ISNULL ); testcase( pExpr->op==TK_IS ); testcase( pExpr->op==TK_OR ); testcase( pExpr->op==TK_CASE ); testcase( pExpr->op==TK_IN ); testcase( pExpr->op==TK_FUNCTION ); return WRC_Prune; case TK_COLUMN: | > > | 4982 4983 4984 4985 4986 4987 4988 4989 4990 4991 4992 4993 4994 4995 4996 4997 4998 4999 5000 5001 5002 5003 5004 5005 | testcase( pExpr->op==TK_AGG_COLUMN ); testcase( pExpr->op==TK_AGG_FUNCTION ); if( ExprHasProperty(pExpr, EP_FromJoin) ) return WRC_Prune; switch( pExpr->op ){ case TK_ISNOT: case TK_NOT: case TK_ISNULL: case TK_NOTNULL: case TK_IS: case TK_OR: case TK_CASE: case TK_IN: case TK_FUNCTION: testcase( pExpr->op==TK_ISNOT ); testcase( pExpr->op==TK_NOT ); testcase( pExpr->op==TK_ISNULL ); testcase( pExpr->op==TK_NOTNULL ); testcase( pExpr->op==TK_IS ); testcase( pExpr->op==TK_OR ); testcase( pExpr->op==TK_CASE ); testcase( pExpr->op==TK_IN ); testcase( pExpr->op==TK_FUNCTION ); return WRC_Prune; case TK_COLUMN: |
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Changes to test/join.test.
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845 846 847 848 849 850 851 852 853 | ON x3 IS TRUE AND b4=a3 JOIN (SELECT x AS x4 FROM t2) ON x4<=CASE WHEN x3 THEN CASE WHEN a4 THEN 1 ELSE -1 END ELSE 0 END LEFT JOIN (SELECT a AS a5, b AS b5 FROM t1) ON x4 IS TRUE AND b5=a4 ORDER BY a1, a2, a3, a4, a5; } {1 {} {} {} {} 1 11 {} {} {} 1 12 {} {} {} 1 12 121 {} {} 1 13 {} {} {}} finish_test | > > > > > > > > > > > > > > | 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 | ON x3 IS TRUE AND b4=a3 JOIN (SELECT x AS x4 FROM t2) ON x4<=CASE WHEN x3 THEN CASE WHEN a4 THEN 1 ELSE -1 END ELSE 0 END LEFT JOIN (SELECT a AS a5, b AS b5 FROM t1) ON x4 IS TRUE AND b5=a4 ORDER BY a1, a2, a3, a4, a5; } {1 {} {} {} {} 1 11 {} {} {} 1 12 {} {} {} 1 12 121 {} {} 1 13 {} {} {}} # 2019-02-05 Ticket https://www.sqlite.org/src/tktview/5948e09b8c415bc45da5c # Error in join due to the LEFT JOIN strength reduction optimization. # do_execsql_test join-16.100 { DROP TABLE IF EXISTS t1; DROP TABLE IF EXISTS t2; CREATE TABLE t1(a INT); INSERT INTO t1(a) VALUES(1); CREATE TABLE t2(b INT); SELECT a, b FROM t1 LEFT JOIN t2 ON 0 WHERE (b IS NOT NULL)=0; } {1 {}} finish_test |