Fixed BUG#6600: Stored procedure crash after repeated calls with check table.

  Sedond attempt: Simply disallow CHECK in SPs, since it can't work.


mysql-test/r/sp-error.result:
  New test cast for BUG#6600
mysql-test/r/sp.result:
  Removed old test case for BUG#6600
mysql-test/t/sp-error.test:
  New test cast for BUG#6600
mysql-test/t/sp.test:
  Removed old test case for BUG#6600
sql/share/errmsg.txt:
  Made the SP bad statement error message more general.
sql/sp_head.cc:
  CHECK is not possible in stored procedures.
sql/sql_parse.cc:
  Undid attempt to fix CHECK in stored procedures, it didn't work.
sql/sql_yacc.yy:
  CHECK is not possible in stored procedures.
  (And updated error messages for LOCK/UNLOCK.)

mysql-test/r/sp-error.result

@@ -494,4 +494,13 @@ declare continue handler for sqlstate '42x00' begin end;
 begin end;
 end|
 ERROR 42000: Bad SQLSTATE: '42x00'
+create procedure bug6600()
+check table t1|
+ERROR 0A000: CHECK is not allowed in stored procedures
+create procedure bug6600()
+lock table t1 read|
+ERROR 0A000: LOCK is not allowed in stored procedures
+create procedure bug6600()
+unlock table t1|
+ERROR 0A000: UNLOCK is not allowed in stored procedures
 drop table t1|

mysql-test/r/sp.result

@@ -2779,23 +2779,4 @@ a
 3.2000
 drop procedure bug8937|
 delete from t1|
-drop procedure if exists bug6600|
-drop table if exists t3|
-drop view if exists v1|
-create table t3 (s1 decimal(31,30))|
-create view v1 as select * from t3|
-create procedure bug6600()
-check table v1|
-call bug6600()|
-Table	Op	Msg_type	Msg_text
-test.v1	check	status	OK
-call bug6600()|
-Table	Op	Msg_type	Msg_text
-test.v1	check	status	OK
-call bug6600()|
-Table	Op	Msg_type	Msg_text
-test.v1	check	status	OK
-drop procedure bug6600|
-drop view v1|
-drop table t3|
 drop table t1,t2;

mysql-test/t/sp-error.test

@@ -680,6 +680,23 @@ begin
 end|
 
 
+#
+# BUG#6600: Stored procedure crash after repeated calls with check table
+#
+--error ER_SP_BADSTATEMENT
+create procedure bug6600()
+  check table t1|
+
+# Check these two as well, while we're at it. (Although it isn't really
+# related to the bug report, but to the fix.)
+--error ER_SP_BADSTATEMENT
+create procedure bug6600()
+  lock table t1 read|
+--error ER_SP_BADSTATEMENT
+create procedure bug6600()
+  unlock table t1|
+
+
 #
 # BUG#NNNN: New bug synopsis
 #

mysql-test/t/sp.test

@@ -3398,28 +3398,6 @@ drop procedure bug8937|
 delete from t1|
 
 
-#
-# BUG#6600: Stored procedure crash after repeated calls with check table
-#
---disable_warnings
-drop procedure if exists bug6600|
-drop table if exists t3|
-drop view if exists v1|
---enable_warnings
-create table t3 (s1 decimal(31,30))|
-create view v1 as select * from t3|
-
-create procedure bug6600()
-  check table v1|
-
-call bug6600()|
-call bug6600()|
-call bug6600()|
-drop procedure bug6600|
-drop view v1|
-drop table t3|
-
-
 #
 # BUG#NNNN: New bug synopsis
 #

sql/share/errmsg.txt

@@ -5094,7 +5094,7 @@ ER_SP_BADSELECT 0A000
 ER_SP_BADRETURN 42000 
 	eng "RETURN is only allowed in a FUNCTION"
 ER_SP_BADSTATEMENT 0A000 
-	eng "LOCK and UNLOCK tables are not allowed in stored procedures"
+	eng "%s is not allowed in stored procedures"
 ER_UPDATE_LOG_DEPRECATED_IGNORED 42000 
 	eng "The update log is deprecated and replaced by the binary log; SET SQL_LOG_UPDATE has been ignored"
 ER_UPDATE_LOG_DEPRECATED_TRANSLATED 42000 

sql/sp_head.cc

@@ -58,7 +58,6 @@ sp_multi_results_command(enum enum_sql_command cmd)
 {
   switch (cmd) {
   case SQLCOM_ANALYZE:
-  case SQLCOM_CHECK:
   case SQLCOM_CHECKSUM:
   case SQLCOM_HA_READ:
   case SQLCOM_SHOW_BINLOGS:

sql/sql_parse.cc

@@ -27,7 +27,6 @@
 
 #include "sp_head.h"
 #include "sp.h"
-#include "sp_cache.h"
 
 #ifdef HAVE_OPENSSL
 /*
@@ -3046,7 +3045,6 @@ unsent_create_error:
       goto error; /* purecov: inspected */
     thd->slow_command=TRUE;
     res = mysql_check_table(thd, first_table, &lex->check_opt);
-    sp_cache_invalidate();
     break;
   }
   case SQLCOM_ANALYZE:

sql/sql_yacc.yy

@@ -3671,6 +3671,12 @@ check:
 	CHECK_SYM table_or_tables
 	{
 	  LEX *lex=Lex;
+
+	  if (lex->sphead)
+	  {
+	    my_error(ER_SP_BADSTATEMENT, MYF(0), "CHECK");
+	    YYABORT;
+	  }
 	  lex->sql_command = SQLCOM_CHECK;
 	  lex->check_opt.init();
 	}
@@ -7719,7 +7725,7 @@ lock:
 
 	  if (lex->sphead)
 	  {
-	    my_message(ER_SP_BADSTATEMENT, ER(ER_SP_BADSTATEMENT), MYF(0));
+	    my_error(ER_SP_BADSTATEMENT, MYF(0), "LOCK");
 	    YYABORT;
 	  }
 	  lex->sql_command= SQLCOM_LOCK_TABLES;
@@ -7758,7 +7764,7 @@ unlock:
 
 	  if (lex->sphead)
 	  {
-	    my_message(ER_SP_BADSTATEMENT, ER(ER_SP_BADSTATEMENT), MYF(0));
+	    my_error(ER_SP_BADSTATEMENT, MYF(0), "UNLOCK");
 	    YYABORT;
 	  }
 	  lex->sql_command= SQLCOM_UNLOCK_TABLES;