From 014073b0139af46abe06aa7fb80144c9436acf98 Mon Sep 17 00:00:00 2001
From: "Sinisa@sinisa.nasamreza.org" <>
Date: Fri, 15 Nov 2002 19:58:07 +0200
Subject: [PATCH] A fix for the bug when MyISAM tmp table has to be created in
 order to resolve derived table.

Will make a test case for this quite soon.
---
 sql/sql_derived.cc | 3 ++-
 sql/sql_union.cc   | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/sql/sql_derived.cc b/sql/sql_derived.cc
index 7cbc1ea6db3..44183a95473 100644
--- a/sql/sql_derived.cc
+++ b/sql/sql_derived.cc
@@ -88,6 +88,7 @@ int mysql_derived(THD *thd, LEX *lex, SELECT_LEX_UNIT *unit, TABLE_LIST *t)
   
     if ((derived_result=new select_union(table)))
     {
+      derived_result->tmp_table_param=&tmp_table_param;
       unit->offset_limit_cnt= sl->offset_limit;
       unit->select_limit_cnt= sl->select_limit+sl->offset_limit;
       if (unit->select_limit_cnt < sl->select_limit)
@@ -118,7 +119,7 @@ int mysql_derived(THD *thd, LEX *lex, SELECT_LEX_UNIT *unit, TABLE_LIST *t)
 	  table->tmp_table=TMP_TABLE;
 	  if (!lex->describe)
 	    sl->exclude();
-	  t->db="";
+	  t->db=(char *)"";
 	  t->derived=(SELECT_LEX *)0; // just in case ...
 	}
       }
diff --git a/sql/sql_union.cc b/sql/sql_union.cc
index 53f89747ce7..f48b879838f 100644
--- a/sql/sql_union.cc
+++ b/sql/sql_union.cc
@@ -80,6 +80,7 @@ bool select_union::send_data(List<Item> &values)
   {
     if (create_myisam_from_heap(table, tmp_table_param, info.last_errno, 0))
       return 1;
+    thd->net.report_error=0; // donno why does it work, but it does ...
   }
   return 0;
 }