| # 2019 September 10 |
| # |
| # The author disclaims copyright to this source code. In place of |
| # a legal notice, here is a blessing: |
| # |
| # May you do good and not evil. |
| # May you find forgiveness for yourself and forgive others. |
| # May you share freely, never taking more than you give. |
| # |
| #*********************************************************************** |
| # This file implements regression tests for SQLite library. In particular, |
| # that problems related to ticket a7debbe0ad1 have been fixed. |
| # |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| set testprefix tkt-a7debbe0 |
| |
| foreach tn {1 2} { |
| reset_db |
| if {$tn==1} { |
| # Disable the flattener |
| optimization_control db query-flattener 0 |
| } else { |
| # Enable the flattener |
| optimization_control db query-flattener 1 |
| } |
| |
| do_execsql_test $tn.1.0 { |
| CREATE TABLE t0(xyz INTEGER); |
| INSERT INTO t0(xyz) VALUES(456); |
| CREATE VIEW v2(a, B) AS |
| SELECT 'a', 'B' COLLATE NOCASE FROM t0; |
| CREATE TABLE t2(a, B COLLATE NOCASE); |
| INSERT INTO t2 VALUES('a', 'B'); |
| CREATE VIEW v3(a, B) AS |
| SELECT 'a' COLLATE BINARY, 'B' COLLATE NOCASE FROM t0; |
| |
| CREATE VIEW v4(a, B) AS |
| SELECT 'a', +CAST('B' COLLATE NOCASE AS TEXT) FROM t0; |
| |
| CREATE VIEW v5(a, B) AS |
| SELECT 'a', ('B' COLLATE NOCASE) || '' FROM t0; |
| } |
| |
| # Table t2 and views v2 through v5 should all be equivalent. |
| do_execsql_test $tn.1.1.1 { SELECT a >= B FROM t2; } 1 |
| do_execsql_test $tn.1.1.2 { SELECT 'a' >= 'B' COLLATE NOCASE } 0 |
| do_execsql_test $tn.1.1.3 { SELECT a >= B FROM v2 } 1 |
| do_execsql_test $tn.1.1.4 { SELECT a >= B FROM v3 } 1 |
| do_execsql_test $tn.1.1.5 { SELECT a >= B FROM v4 } 1 |
| do_execsql_test $tn.1.1.6 { SELECT a >= B FROM v5 } 1 |
| |
| do_execsql_test $tn.1.2.1 { SELECT B < a FROM t2 } 0 |
| do_execsql_test $tn.1.2.2 { SELECT 'B' COLLATE NOCASE < 'a' } 0 |
| do_execsql_test $tn.1.2.3 { SELECT B < a FROM v2 } 0 |
| do_execsql_test $tn.1.2.4 { SELECT B < a FROM v3 } 0 |
| do_execsql_test $tn.1.2.5 { SELECT a < B FROM v4 } 0 |
| do_execsql_test $tn.1.2.6 { SELECT a < B FROM v5 } 0 |
| |
| #------------------------------------------------------------------------- |
| do_execsql_test $tn.2.0 { |
| CREATE TABLE t5(a, b COLLATE NOCASE); |
| INSERT INTO t5 VALUES(1, 'XYZ'); |
| } |
| |
| # Result should be 0, as column "xyz" from the sub-query has implicit |
| # collation sequence BINARY. |
| do_execsql_test $tn.2.1 { |
| SELECT xyz==b FROM ( SELECT a, 'xyz' AS xyz FROM t5 ), t5; |
| } {0} |
| |
| # Result should be 1, as literal 'xyz' has no collation sequence, so |
| # the comparison uses the implicit collation sequence of the RHS - NOCASE. |
| do_execsql_test $tn.2.2 { |
| SELECT 'xyz'==b FROM ( SELECT a, 'xyz' AS xyz FROM t5 ), t5; |
| } {1} |
| |
| #----------------------------------------------------------------------- |
| # The test case submitted with the ticket. |
| # |
| do_execsql_test $tn.3.0 { |
| DROP TABLE t0; |
| DROP VIEW v2; |
| |
| CREATE TABLE t0(c0); |
| INSERT INTO t0(c0) VALUES(''); |
| CREATE VIEW v2(c0, c1) AS |
| SELECT 'B' COLLATE NOCASE, 'a' FROM t0 ORDER BY t0.c0; |
| SELECT SUM(count) FROM ( |
| SELECT v2.c1 BETWEEN v2.c0 AND v2.c1 as count FROM v2 |
| ); |
| } 1 |
| |
| # The result is 1, as the collation used is the implicit collation sequence |
| # of v2.c1 - BINARY. |
| do_execsql_test $tn.3.1 { |
| SELECT v2.c1 BETWEEN v2.c0 AND v2.c1 as count FROM v2; |
| } 1 |
| } |
| |
| finish_test |