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null processing for character_set_results (BUG#3296)

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mysql-test/r/query_cache.result:
  test suite for BUG#3296
mysql-test/t/query_cache.test:
  test suite for BUG#3296
sql/sql_cache.cc:
  null processing for character_set_results
This commit is contained in:
unknown
2004-03-30 23:38:56 +03:00
parent 35a21a9c10
commit 963debbe77
3 changed files with 17 additions and 2 deletions
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5
mysql-test/r/query_cache.result
View File

@@ -846,4 +846,9 @@ SELECT * FROM test.t1;
a
USE test;
DROP TABLE t1;
set character_set_results=null;
select @@character_set_results;
@@character_set_results
NULL
set character_set_results=default;
SET GLOBAL query_cache_size=0;

6
mysql-test/t/query_cache.test
View File

@@ -620,5 +620,11 @@ SELECT * FROM test.t1;
USE test;
DROP TABLE t1;
#
# charset with NULL
#
set character_set_results=null;
select @@character_set_results;
set character_set_results=default;
SET GLOBAL query_cache_size=0;

8
sql/sql_cache.cc
View File

@@ -780,7 +780,9 @@ void Query_cache::store_query(THD *thd, TABLE_LIST *tables_used)
flags.character_set_client_num=
thd->variables.character_set_client->number;
flags.character_set_results_num=
thd->variables.character_set_results->number;
(thd->variables.character_set_results ?
thd->variables.character_set_results->number :
UINT_MAX);
flags.collation_connection_num=
thd->variables.collation_connection->number;
flags.limit= thd->variables.select_limit;
@@ -965,7 +967,9 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
1 : 0);
flags.character_set_client_num= thd->variables.character_set_client->number;
flags.character_set_results_num=
thd->variables.character_set_results->number;
(thd->variables.character_set_results ?
thd->variables.character_set_results->number :
UINT_MAX);
flags.collation_connection_num= thd->variables.collation_connection->number;
flags.limit= thd->variables.select_limit;
memcpy((void *)(sql + (tot_length - QUERY_CACHE_FLAGS_SIZE)),