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Diffstat (limited to '')
| -rw-r--r-- | test/tkt-a7debbe0.test | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/test/tkt-a7debbe0.test b/test/tkt-a7debbe0.test new file mode 100644 index 0000000..cc72eb7 --- /dev/null +++ b/test/tkt-a7debbe0.test @@ -0,0 +1,102 @@ +# 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 |