From 606e21867c0f5765f61efd2478c9f12cf33da71e Mon Sep 17 00:00:00 2001 From: Alexander Barkov Date: Tue, 3 Apr 2018 16:28:52 +0400 Subject: [PATCH] MDEV-15630 uuid() function evaluates at wrong time in query --- mysql-test/r/func_misc.result | 11 +++++++++++ mysql-test/t/func_misc.test | 12 ++++++++++++ sql/item_strfunc.h | 1 + 3 files changed, 24 insertions(+) diff --git a/mysql-test/r/func_misc.result b/mysql-test/r/func_misc.result index 1c106acf333..66e3cfd4ff4 100644 --- a/mysql-test/r/func_misc.result +++ b/mysql-test/r/func_misc.result @@ -572,6 +572,17 @@ N AVG 0 NULL drop table t1; # +# MDEV-15630 uuid() function evaluates at wrong time in query +# +CREATE TABLE t1 (id INT); +INSERT INTO t1 VALUES (1),(2),(3); +SELECT COUNT(1), UUID() as uid FROM t1 GROUP BY uid; +COUNT(1) uid +1 xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx +1 xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx +1 xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx +DROP TABLE t1; +# # End of 5.5 tests # SELECT NAME_CONST('a', -(1 OR 2)) OR 1; diff --git a/mysql-test/t/func_misc.test b/mysql-test/t/func_misc.test index d7eda5ee4e6..c21630c0c7b 100644 --- a/mysql-test/t/func_misc.test +++ b/mysql-test/t/func_misc.test @@ -596,6 +596,18 @@ AND 57813X540X1723 = 'Test'; drop table t1; + +--echo # +--echo # MDEV-15630 uuid() function evaluates at wrong time in query +--echo # + +CREATE TABLE t1 (id INT); +INSERT INTO t1 VALUES (1),(2),(3); +--replace_column 2 xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx +SELECT COUNT(1), UUID() as uid FROM t1 GROUP BY uid; +DROP TABLE t1; + + --echo # --echo # End of 5.5 tests --echo # diff --git a/sql/item_strfunc.h b/sql/item_strfunc.h index 00ae60a7fb1..006b1b90081 100644 --- a/sql/item_strfunc.h +++ b/sql/item_strfunc.h @@ -997,6 +997,7 @@ public: DERIVATION_COERCIBLE, MY_REPERTOIRE_ASCII); fix_char_length(MY_UUID_STRING_LENGTH); } + table_map used_tables() const { return RAND_TABLE_BIT; } const char *func_name() const{ return "uuid"; } String *val_str(String *); bool check_vcol_func_processor(uchar *int_arg)