Index: third_party/sqlite/src/test/tkt-fa7bf5ec.test |
diff --git a/third_party/sqlite/src/test/tkt-fa7bf5ec.test b/third_party/sqlite/src/test/tkt-fa7bf5ec.test |
new file mode 100644 |
index 0000000000000000000000000000000000000000..34f12b96773cca65049d5a87319f4993300fc7b2 |
--- /dev/null |
+++ b/third_party/sqlite/src/test/tkt-fa7bf5ec.test |
@@ -0,0 +1,39 @@ |
+# 2011 October 13 |
+# |
+# 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. Specifically, |
+# it tests that ticket [fa7bf5ec94801e7e2030e41eefe5d9dd96eaacfd] has |
+# been resolved. |
+# |
+# The problem described by this ticket was that the sqlite3ExprCompare() |
+# function was saying that expressions (x='a') and (x='A') were identical |
+# because it was using sqlite3StrICmp() instead of strcmp() to compare string |
+# literals. That was causing the query optimizer for aggregate queries to |
+# believe that both count() operations were identical, and thus only |
+# computing the first count() and making a copy of the result for the |
+# second count(). |
+# |
+ |
+set testdir [file dirname $argv0] |
+source $testdir/tester.tcl |
+ |
+do_test tkt-fa7bf5ec-1 { |
+ execsql { |
+ CREATE TABLE t1(x); |
+ INSERT INTO t1 VALUES ('a'); |
+ INSERT INTO t1 VALUES ('A'); |
+ INSERT INTO t1 VALUES ('A'); |
+ SELECT count(CASE WHEN x='a' THEN 1 END), |
+ count(CASE WHEN x='A' THEN 1 END) |
+ FROM t1; |
+ } |
+} {1 2} |
+ |
+finish_test |