Merge sanja.is.com.ua:/home/bell/mysql/bk/work-bug2-5.0

into sanja.is.com.ua:/home/bell/mysql/bk/work-bug8-5.0

mysql-test/r/query_cache.result

@@ -930,7 +930,7 @@ Variable_name	Value
 Qcache_queries_in_cache	0
 show status like "Qcache_inserts";
 Variable_name	Value
-Qcache_inserts	19
+Qcache_inserts	18
 show status like "Qcache_hits";
 Variable_name	Value
 Qcache_hits	6
@@ -943,7 +943,7 @@ Variable_name	Value
 Qcache_queries_in_cache	1
 show status like "Qcache_inserts";
 Variable_name	Value
-Qcache_inserts	20
+Qcache_inserts	19
 show status like "Qcache_hits";
 Variable_name	Value
 Qcache_hits	7
@@ -1007,6 +1007,93 @@ abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyzab
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 flush query cache;
 drop table t1, t2;
+flush status;
+CREATE TABLE t1 (
+`date` datetime NOT NULL default '0000-00-00 00:00:00',
+KEY `date` (`date`)
+) ENGINE=MyISAM;
+INSERT INTO t1 VALUES ('20050326');
+INSERT INTO t1 VALUES ('20050325');
+SELECT COUNT(*) FROM t1 WHERE date BETWEEN '20050326' AND '20050327 0:0:0';
+COUNT(*)
+0
+Warnings:
+Warning	1292	Incorrect datetime value: '20050327 0:0:0' for column 'date' at row 1
+Warning	1292	Incorrect datetime value: '20050327 0:0:0' for column 'date' at row 1
+SELECT COUNT(*) FROM t1 WHERE date BETWEEN '20050326' AND '20050328 0:0:0';
+COUNT(*)
+0
+Warnings:
+Warning	1292	Incorrect datetime value: '20050328 0:0:0' for column 'date' at row 1
+Warning	1292	Incorrect datetime value: '20050328 0:0:0' for column 'date' at row 1
+SELECT COUNT(*) FROM t1 WHERE date BETWEEN '20050326' AND '20050327 0:0:0';
+COUNT(*)
+0
+Warnings:
+Warning	1292	Incorrect datetime value: '20050327 0:0:0' for column 'date' at row 1
+Warning	1292	Incorrect datetime value: '20050327 0:0:0' for column 'date' at row 1
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	0
+show status like "Qcache_inserts";
+Variable_name	Value
+Qcache_inserts	0
+show status like "Qcache_hits";
+Variable_name	Value
+Qcache_hits	0
+drop table t1;
+create table t1 (a int);
+insert into t1 values (1);
+reset query cache;
+flush status;
+select * from (select * from t1) a;
+a
+1
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	1
+show status like "Qcache_inserts";
+Variable_name	Value
+Qcache_inserts	1
+show status like "Qcache_hits";
+Variable_name	Value
+Qcache_hits	0
+select * from (select * from t1) a;
+a
+1
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	1
+show status like "Qcache_inserts";
+Variable_name	Value
+Qcache_inserts	1
+show status like "Qcache_hits";
+Variable_name	Value
+Qcache_hits	1
+insert into t1 values (2);
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	0
+show status like "Qcache_inserts";
+Variable_name	Value
+Qcache_inserts	1
+show status like "Qcache_hits";
+Variable_name	Value
+Qcache_hits	1
+select * from (select * from t1) a;
+a
+1
+2
+show status like "Qcache_queries_in_cache";
+Variable_name	Value
+Qcache_queries_in_cache	1
+show status like "Qcache_inserts";
+Variable_name	Value
+Qcache_inserts	2
+show status like "Qcache_hits";
+Variable_name	Value
+Qcache_hits	1
+drop table t1;
 create table t1 (a int);
 insert into t1 values (1),(2);
 CREATE PROCEDURE `p1`()

mysql-test/t/query_cache.test

@@ -756,6 +756,50 @@ flush query cache;
 
 drop table t1, t2;
 
+#
+# Query with warning prohibited to query cache (BUG#9414)
+#
+flush status;
+CREATE TABLE t1 (
+  `date` datetime NOT NULL default '0000-00-00 00:00:00',
+  KEY `date` (`date`)
+) ENGINE=MyISAM;
+
+INSERT INTO t1 VALUES ('20050326');
+INSERT INTO t1 VALUES ('20050325');
+SELECT COUNT(*) FROM t1 WHERE date BETWEEN '20050326' AND '20050327 0:0:0';
+SELECT COUNT(*) FROM t1 WHERE date BETWEEN '20050326' AND '20050328 0:0:0';
+SELECT COUNT(*) FROM t1 WHERE date BETWEEN '20050326' AND '20050327 0:0:0';
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_inserts";
+show status like "Qcache_hits";
+drop table t1;
+
+#
+# queries with subquery in the FROM clause (BUG#11522)
+#
+create table t1 (a int);
+insert into t1 values (1);
+reset query cache;
+flush status;
+select * from (select * from t1) a;
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_inserts";
+show status like "Qcache_hits";
+select * from (select * from t1) a;
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_inserts";
+show status like "Qcache_hits";
+insert into t1 values (2);
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_inserts";
+show status like "Qcache_hits";
+select * from (select * from t1) a;
+show status like "Qcache_queries_in_cache";
+show status like "Qcache_inserts";
+show status like "Qcache_hits";
+drop table t1;
+
 #
 # SP cursors and selects with query cache (BUG#9715)
 #

sql/sql_cache.cc

@@ -278,7 +278,6 @@ TODO list:
   - Move MRG_MYISAM table type processing to handlers, something like:
         tables_used->table->file->register_used_filenames(callback,
                                                           first_argument);
-  - Make derived tables cachable.
   - QC improvement suggested by Monty:
     - Add a counter in open_table() for how many MERGE (ISAM or MyISAM)
       tables are cached in the table cache.
@@ -2135,6 +2134,13 @@ Query_cache::register_tables_from_list(TABLE_LIST *tables_used,
        tables_used;
        tables_used= tables_used->next_global, n++, block_table++)
   {
+    if (tables_used->derived)
+    {
+      DBUG_PRINT("qcache", ("derived table skipped"));
+      n--;
+      block_table--;
+      continue;
+    }
     block_table->n= n;
     if (tables_used->view)
     {
@@ -2778,6 +2784,12 @@ static TABLE_COUNTER_TYPE process_and_count_tables(TABLE_LIST *tables_used,
                             tables_used->table->s->table_name,
                             tables_used->table->s->table_cache_key,
                             tables_used->table->s->db_type));
+      if (tables_used->derived)
+      {
+        table_count--;
+        DBUG_PRINT("qcache", ("derived table skipped"));
+        continue;
+      }
       *tables_type|= tables_used->table->file->table_cache_type();
 
       /*

sql/sql_error.cc

@@ -146,6 +146,8 @@ MYSQL_ERROR *push_warning(THD *thd, MYSQL_ERROR::enum_warning_level level,
   {
     DBUG_RETURN(NULL);
   }
+  query_cache_abort(&thd->net);
+
 
   if (thd->warn_list.elements < thd->variables.max_error_count)
   {