Merge acurtis@bk-internal.mysql.com:/home/bk/mysql-4.0

into ltantony.mysql.com:/usr/home/antony/work2/megapatch-4.0

mysql-test/include/have_outfile.inc

+-- require r/have_outfile.require
+disable_query_log;
+select load_file(concat(@tmpdir,"/outfile.test"));
+--exec rm $MYSQL_TEST_DIR/var/tmp/outfile.test
+enable_query_log;

mysql-test/include/test_outfile.inc

+eval select "Outfile OK" into outfile "$MYSQL_TEST_DIR/var/tmp/outfile.test"; 

mysql-test/r/alter_table.result

@@ -386,3 +386,23 @@ Incorrect table name 't1\\'
 rename table t1 to `t1\\`;
 Incorrect table name 't1\\'
 drop table t1;
+drop table if exists t1, t2;
+create table t1 ( a varchar(10) not null primary key ) engine=myisam;
+create table t2 ( a varchar(10) not null primary key ) engine=merge union=(t1);
+flush tables;
+alter table t1 modify a varchar(10);
+show create table t2;
+Table	Create Table
+t2	CREATE TABLE `t2` (
+  `a` varchar(10) NOT NULL default '',
+  PRIMARY KEY  (`a`)
+) TYPE=MRG_MyISAM UNION=(t1)
+flush tables;
+alter table t1 modify a varchar(10) not null;
+show create table t2;
+Table	Create Table
+t2	CREATE TABLE `t2` (
+  `a` varchar(10) NOT NULL default '',
+  PRIMARY KEY  (`a`)
+) TYPE=MRG_MyISAM UNION=(t1)
+drop table if exists t1, t2;

mysql-test/r/have_outfile.require

+load_file(concat(@tmpdir,"/outfile.test"))
+Outfile OK
+

mysql-test/t/alter_table.test

@@ -254,3 +254,16 @@ alter table t1 rename to `t1\\`;
 rename table t1 to `t1\\`;
 drop table t1;
 
+#
+# BUG#6236 - ALTER TABLE MODIFY should set implicit NOT NULL on PK columns
+#
+drop table if exists t1, t2;
+create table t1 ( a varchar(10) not null primary key ) engine=myisam;
+create table t2 ( a varchar(10) not null primary key ) engine=merge union=(t1);
+flush tables;
+alter table t1 modify a varchar(10);
+show create table t2;
+flush tables;
+alter table t1 modify a varchar(10) not null;
+show create table t2;
+drop table if exists t1, t2;

mysql-test/t/outfile.test

+disable_query_log;
+-- source include/test_outfile.inc
+eval set @tmpdir="$MYSQL_TEST_DIR/var/tmp";
+enable_query_log;
+-- source include/have_outfile.inc
 #
 # test of into outfile|dumpfile
 #
 
-# We need to check that we have 'file' privilege.
+drop table if exists t1;
+create table t1 (`a` blob);
+insert into t1 values("hello world"),("Hello mars"),(NULL);
+disable_query_log;
+eval select * into outfile "$MYSQL_TEST_DIR/var/tmp/outfile-test.1" from t1;
+enable_query_log;
+select load_file(concat(@tmpdir,"/outfile-test.1"));
+disable_query_log;
+eval select * into dumpfile "$MYSQL_TEST_DIR/var/tmp/outfile-test.2" from t1 limit 1;
+enable_query_log;
+select load_file(concat(@tmpdir,"/outfile-test.2"));
+disable_query_log;
+eval select * into dumpfile "$MYSQL_TEST_DIR/var/tmp/outfile-test.3" from t1 where a is null;
+enable_query_log;
+select load_file(concat(@tmpdir,"/outfile-test.3"));
 
-#drop table if exists t1;
-#create table t1 (`a` blob);
-#insert into t1 values("hello world"),("Hello mars"),(NULL);
-#select * into outfile "/tmp/select-test.1" from t1;
-#select load_file("/tmp/select-test.1");
-#select * into dumpfile "/tmp/select-test.2" from t1 limit 1;
-#select load_file("/tmp/select-test.2");
-#select * into dumpfile "/tmp/select-test.3" from t1 where a is null;
-#select load_file("/tmp/select-test.3");
-#
-## the following should give errors
-#
-#select * into outfile "/tmp/select-test.1" from t1;
-#select * into dumpfile "/tmp/select-test.1" from t1;
-#select * into dumpfile "/tmp/select-test.99" from t1;
-#select load_file("/tmp/select-test.not-exist");
-#drop table t1;
+# the following should give errors
+
+disable_query_log;
+--error 1086
+eval select * into outfile "$MYSQL_TEST_DIR/var/tmp/outfile-test.1" from t1;
+--error 1086
+eval select * into dumpfile "$MYSQL_TEST_DIR/var/tmp/outfile-test.2" from t1;
+--error 1086
+eval select * into dumpfile "$MYSQL_TEST_DIR/var/tmp/outfile-test.3" from t1;
+enable_query_log;
+select load_file(concat(@tmpdir,"/outfile-test.not-exist"));
+--exec rm $MYSQL_TEST_DIR/var/tmp/outfile-test.1
+--exec rm $MYSQL_TEST_DIR/var/tmp/outfile-test.2
+--exec rm $MYSQL_TEST_DIR/var/tmp/outfile-test.3
+drop table t1;
+
+# Bug#8191
+disable_query_log;
+eval select 1 into outfile "$MYSQL_TEST_DIR/var/tmp/outfile-test.4";
+enable_query_log;
+select load_file(concat(@tmpdir,"/outfile-test.4"));
+--exec rm $MYSQL_TEST_DIR/var/tmp/outfile-test.4

sql/sql_table.cc

@@ -1795,6 +1795,11 @@ int mysql_alter_table(THD *thd,char *new_db, char *new_name,
     }
 
     KEY_PART_INFO *key_part= key_info->key_part;
+    enum Key::Keytype key_type= key_info->flags & HA_NOSAME ?
+				 (!my_strcasecmp(key_name, "PRIMARY") ?
+				  Key::PRIMARY  : Key::UNIQUE) :
+                                 (key_info->flags & HA_FULLTEXT ?
+                                 Key::FULLTEXT : Key::MULTIPLE);
     key_parts.empty();
     for (uint j=0 ; j < key_info->key_parts ; j++,key_part++)
     {
@@ -1824,16 +1829,22 @@ int mysql_alter_table(THD *thd,char *new_db, char *new_name,
 	     cfield->pack_length <= key_part_length))
 	  key_part_length=0;			// Use whole field
       }
+      if (!(cfield->flags & NOT_NULL_FLAG))
+      {
+	if (key_type == Key::PRIMARY)
+	{
+	  /* Implicitly set primary key fields to NOT NULL for ISO conf. */
+	  cfield->flags|= NOT_NULL_FLAG;
+	  cfield->pack_flag&= ~FIELDFLAG_MAYBE_NULL;
+	}
+        else
+          key_info->flags|= HA_NULL_PART_KEY;
+      }
       key_parts.push_back(new key_part_spec(cfield->field_name,
 					    key_part_length));
     }
     if (key_parts.elements)
-      key_list.push_back(new Key(key_info->flags & HA_NOSAME ?
-				 (!my_strcasecmp(key_name, "PRIMARY") ?
-				  Key::PRIMARY  : Key::UNIQUE) :
-                                 (key_info->flags & HA_FULLTEXT ?
-                                 Key::FULLTEXT : Key::MULTIPLE),
-				 key_name,key_parts));
+      key_list.push_back(new Key(key_type,key_name,key_parts));
   }
   key_it.rewind();
   {

sql/sql_yacc.yy

@@ -1537,9 +1537,10 @@ select_part2:
 
 select_into:
 	limit_clause {}
+	| into
 	| select_from
-	| opt_into select_from
-	| select_from opt_into;
+	| into select_from
+	| select_from into;
 
 select_from:
 	FROM join_table_list where_clause group_clause having_clause opt_order_clause limit_clause procedure_clause;
@@ -2507,7 +2508,7 @@ procedure_item:
 	      $2->set_name($1,(uint) ((char*) lex->tok_end - $1));
 	  };
 
-opt_into:
+into:
 	INTO OUTFILE TEXT_STRING
 	{
 	  THD *thd= current_thd;