bk commit into 5.0 tree (konstantin:1.1967) BUG#13524

[konstantin]

Below is the list of changes that have just been committed into a local
5.0 repository of kostja. When kostja does a push these changes will
be propagated to the main repository and, within 24 hours after the
push, to the public repository.
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see http://dev.mysql.com/doc/mysql/en/installing-source-tree.html

ChangeSet
  1.1967 05/11/17 16:20:12 konstantin@stripped +2 -0
  A fix and a test case for Bug#13524 "lock timeout gives 
  incorrect warning on open cursor"

  tests/mysql_client_test.c
    1.164 05/11/17 16:20:01 konstantin@stripped +62 -1
    A test case for Bug#13524 "lock timeout gives incorrect 
    warning on open cursor"

  sql/sql_prepare.cc
    1.164 05/11/17 16:20:00 konstantin@stripped +1 -0
    A fix for Bug#13524 "lock timeout gives incorrect 
    warning on open cursor": reset the connection for next
    command before performing a cursor fetch (add an omitted line).

# This is a BitKeeper patch.  What follows are the unified diffs for the
# set of deltas contained in the patch.  The rest of the patch, the part
# that BitKeeper cares about, is below these diffs.
# User:	konstantin
# Host:	dragonfly.local
# Root:	/opt/local/work/mysql-5.0-13524

--- 1.163/sql/sql_prepare.cc	2005-11-03 16:21:19 +03:00
+++ 1.164/sql/sql_prepare.cc	2005-11-17 16:20:00 +03:00
@@ -2312,6 +2312,7 @@
   Server_side_cursor *cursor;
   DBUG_ENTER("mysql_stmt_fetch");
 
+  mysql_reset_thd_for_next_command(thd);
   statistic_increment(thd->status_var.com_stmt_fetch, &LOCK_status);
   if (!(stmt= find_prepared_statement(thd, stmt_id, "mysql_stmt_fetch")))
     DBUG_VOID_RETURN;

--- 1.163/tests/mysql_client_test.c	2005-11-09 20:30:55 +03:00
+++ 1.164/tests/mysql_client_test.c	2005-11-17 16:20:01 +03:00
@@ -14419,7 +14419,7 @@
   myquery(rc);
 }
 
-/* Bug#13488 */
+/* Bug#13488: wrong column metadata when fetching from cursor */
 
 static void test_bug13488()
 {
@@ -14488,6 +14488,66 @@
 }
 
 /*
+  Bug#13524: warnings of a previous command are not reset when fetching
+  from a cursor.
+*/
+
+static void test_bug13524()
+{
+  MYSQL_STMT *stmt;
+  int rc;
+  unsigned int warning_count;
+  const ulong type= CURSOR_TYPE_READ_ONLY;
+  const char *query= "select * from t1";
+
+  myheader("test_bug13524");
+
+  rc= mysql_query(mysql, "drop table if exists t1, t2");
+  myquery(rc);
+  rc= mysql_query(mysql, "create table t1 (a int not null primary key)");
+  myquery(rc);
+  rc= mysql_query(mysql, "insert into t1 values (1), (2), (3), (4)");
+  myquery(rc);
+
+  stmt= mysql_stmt_init(mysql);
+  rc= mysql_stmt_attr_set(stmt, STMT_ATTR_CURSOR_TYPE, (const void*) &type);
+  check_execute(stmt, rc);
+
+  rc= mysql_stmt_prepare(stmt, query, strlen(query));
+  check_execute(stmt, rc);
+
+  rc= mysql_stmt_execute(stmt);
+  check_execute(stmt, rc);
+
+  rc= mysql_stmt_fetch(stmt);
+  check_execute(stmt, rc);
+
+  warning_count= mysql_warning_count(mysql);
+  DIE_UNLESS(warning_count == 0);
+
+  /* Check that DROP TABLE produced a warning (no such table) */
+  rc= mysql_query(mysql, "drop table if exists t2");
+  myquery(rc);
+  warning_count= mysql_warning_count(mysql);
+  DIE_UNLESS(warning_count == 1);
+
+  /*
+    Check that fetch from a cursor cleared the warning from the previous
+    command.
+  */
+  rc= mysql_stmt_fetch(stmt);
+  check_execute(stmt, rc);
+  warning_count= mysql_warning_count(mysql);
+  DIE_UNLESS(warning_count == 0);
+
+  /* Cleanup */
+  mysql_stmt_close(stmt);
+  rc= mysql_query(mysql, "drop table t1");
+  myquery(rc);
+}
+
+
+/*
   Read and parse arguments and MySQL options from my.cnf
 */
 
@@ -14744,6 +14804,7 @@
   { "test_bug12243", test_bug12243 },
   { "test_bug14210", test_bug14210 },
   { "test_bug13488", test_bug13488 },
+  { "test_bug13524", test_bug13524 },
   { 0, 0 }
 };