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Annotation of embedaddon/sqlite3/test/tkt-fa7bf5ec.test, revision 1.1.1.1

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