Annotation of embedaddon/sqlite3/test/tkt-fa7bf5ec.test, revision 1.1
1.1 ! misho 1: # 2011 October 13
! 2: #
! 3: # The author disclaims copyright to this source code. In place of
! 4: # a legal notice, here is a blessing:
! 5: #
! 6: # May you do good and not evil.
! 7: # May you find forgiveness for yourself and forgive others.
! 8: # May you share freely, never taking more than you give.
! 9: #
! 10: #***********************************************************************
! 11: # This file implements regression tests for SQLite library. Specifically,
! 12: # it tests that ticket [fa7bf5ec94801e7e2030e41eefe5d9dd96eaacfd] has
! 13: # been resolved.
! 14: #
! 15: # The problem described by this ticket was that the sqlite3ExprCompare()
! 16: # function was saying that expressions (x='a') and (x='A') were identical
! 17: # because it was using sqlite3StrICmp() instead of strcmp() to compare string
! 18: # literals. That was causing the query optimizer for aggregate queries to
! 19: # believe that both count() operations were identical, and thus only
! 20: # computing the first count() and making a copy of the result for the
! 21: # second count().
! 22: #
! 23:
! 24: set testdir [file dirname $argv0]
! 25: source $testdir/tester.tcl
! 26:
! 27: do_test tkt-fa7bf5ec-1 {
! 28: execsql {
! 29: CREATE TABLE t1(x);
! 30: INSERT INTO t1 VALUES ('a');
! 31: INSERT INTO t1 VALUES ('A');
! 32: INSERT INTO t1 VALUES ('A');
! 33: SELECT count(CASE WHEN x='a' THEN 1 END),
! 34: count(CASE WHEN x='A' THEN 1 END)
! 35: FROM t1;
! 36: }
! 37: } {1 2}
! 38:
! 39: finish_test
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