BUG #15408 - Partitions: subpartition names are not unique

libmysqld/Makefile.am:
  changed name to partition_info.cc
mysql-test/r/partition_mgm_err.result:
  added drop table for previous test
mysql-test/t/partition_mgm_err.test:
  added drop table for previous test
sql/Makefile.am:
  reformatted a bit
  changed name of partition_info.cpp to partition_info.cc
sql/partition_element.h:
  updated copyright date
sql/partition_info.cc:
  minor corrections as a result of review
sql/partition_info.h:
  updated copyright date
sql/sql_partition.cc:
  updated file comment and fixed some spacing
sql/sql_partition.h:
  updated copyright date
win/cmakefiles/sql:
  changed name to partition_info.cc

libmysqld/Makefile.am

@@ -67,7 +67,7 @@ sqlsources = derror.cc field.cc field_conv.cc strfunc.cc filesort.cc \
         event_executor.cc event.cc event_timed.cc \
         rpl_filter.cc sql_partition.cc handlerton.cc sql_plugin.cc \
         sql_tablespace.cc \
-        rpl_injector.cc my_user.c partition_info.cpp
+        rpl_injector.cc my_user.c partition_info.cc
 
 libmysqld_int_a_SOURCES= $(libmysqld_sources) $(libmysqlsources) $(sqlsources)
 EXTRA_libmysqld_a_SOURCES =	ha_innodb.cc ha_berkeley.cc ha_archive.cc \

mysql-test/r/partition_mgm_err.result

@@ -142,6 +142,7 @@ t1	CREATE TABLE `t1` (
 DROP TABLE t1;
 CREATE TABLE t1 (a INT) PARTITION BY HASH(a);
 ALTER TABLE t1 ADD PARTITION PARTITIONS 4;
+DROP TABLE t1;
 CREATE TABLE t1 (s1 int, s2 int) PARTITION BY LIST (s1)  (
 PARTITION p1 VALUES IN (0) (SUBPARTITION p1b), 
 PARTITION p2 VALUES IN (2) (SUBPARTITION p1b)

mysql-test/t/partition_mgm_err.test

@@ -216,6 +216,7 @@ DROP TABLE t1;
 #
 CREATE TABLE t1 (a INT) PARTITION BY HASH(a);
 ALTER TABLE t1 ADD PARTITION PARTITIONS 4;
+DROP TABLE t1;
 
 #
 #BUG 15408: Partitions: subpartition names are not unique

sql/Makefile.am

@@ -65,8 +65,8 @@ noinst_HEADERS =	item.h item_func.h item_sum.h item_cmpfunc.h \
 			sp_head.h sp_pcontext.h sp_rcontext.h sp.h sp_cache.h \
 			parse_file.h sql_view.h	sql_trigger.h \
 			sql_array.h sql_cursor.h event.h event_priv.h \
-			sql_plugin.h authors.h sql_partition.h partition_info.h \
-			partition_element.h
+			sql_plugin.h authors.h sql_partition.h \
+                        partition_info.h partition_element.h
 mysqld_SOURCES =	sql_lex.cc sql_handler.cc sql_partition.cc \
 			item.cc item_sum.cc item_buff.cc item_func.cc \
 			item_cmpfunc.cc item_strfunc.cc item_timefunc.cc \
@@ -102,7 +102,7 @@ mysqld_SOURCES =	sql_lex.cc sql_handler.cc sql_partition.cc \
 			sp_cache.cc parse_file.cc sql_trigger.cc \
                         event_executor.cc event.cc event_timed.cc \
 			sql_plugin.cc sql_binlog.cc \
-			handlerton.cc sql_tablespace.cc partition_info.cpp
+			handlerton.cc sql_tablespace.cc partition_info.cc
 EXTRA_mysqld_SOURCES =	ha_innodb.cc ha_berkeley.cc ha_archive.cc \
 			ha_innodb.h  ha_berkeley.h  ha_archive.h \
 			ha_blackhole.cc ha_federated.cc ha_ndbcluster.cc \

sql/partition_element.h

-/* Copyright (C) 2000,2004 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+/* Copyright (C) 2000,200666666 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

sql/partition_info.cpp → sql/partition_info.cc

-/* Copyright (C) 2005 MySQL AB
+/* Copyright (C) 2006 MySQL AB
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -14,23 +14,6 @@
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
-/*
-  This file was introduced as a container for general functionality related
-  to partitioning introduced in MySQL version 5.1. It contains functionality
-  used by all handlers that support partitioning, which in the first version
-  is the partitioning handler itself and the NDB handler.
-
-  The first version was written by Mikael Ronstrom.
-
-  This version supports RANGE partitioning, LIST partitioning, HASH
-  partitioning and composite partitioning (hereafter called subpartitioning)
-  where each RANGE/LIST partitioning is HASH partitioned. The hash function
-  can either be supplied by the user or by only a list of fields (also
-  called KEY partitioning, where the MySQL server will use an internal
-  hash function.
-  There are quite a few defaults that can be used as well.
-*/
-
 /* Some general useful functions */
 
 #include "mysql_priv.h"
@@ -164,6 +147,7 @@ bool partition_info::set_up_default_partitions(handler *file, ulonglong max_rows
   DBUG_RETURN(result);
 }
 
+
 /*
   Set up all the default subpartitions not set-up by the user in the SQL
   statement. Also perform a number of checks that the default partitioning
@@ -235,6 +219,7 @@ bool partition_info::set_up_default_subpartitions(handler *file,
   DBUG_RETURN(result);
 }
 
+
 /*
   Support routine for check_partition_info
 
@@ -272,6 +257,7 @@ bool partition_info::set_up_defaults_for_partitioning(handler *file,
   DBUG_RETURN(FALSE);
 }
 
+
 /*
   A support function to check if a partition element's name is unique
   
@@ -283,6 +269,7 @@ bool partition_info::set_up_defaults_for_partitioning(handler *file,
     TRUE               Has unique name
     FALSE              Doesn't
 */
+
 bool partition_info::has_unique_name(partition_element *element)
 {
   DBUG_ENTER("partition_info::has_unique_name");
@@ -297,14 +284,16 @@ bool partition_info::has_unique_name(partition_element *element)
                         name_to_check)) && el != element)
         DBUG_RETURN(FALSE);
 
-    if (el->subpartitions.is_empty()) continue;
-    List_iterator<partition_element> subparts_it(el->subpartitions);
-    partition_element *sub_el;
-    while (sub_el= (subparts_it++))
+    if (!el->subpartitions.is_empty()) 
     {
-      if (!(my_strcasecmp(system_charset_info, sub_el->partition_name, 
-                          name_to_check)) && sub_el != element)
-          DBUG_RETURN(FALSE);
+      partition_element *sub_el;    
+      List_iterator<partition_element> subparts_it(el->subpartitions);
+      while (sub_el= (subparts_it++))
+      {
+        if (!(my_strcasecmp(system_charset_info, sub_el->partition_name, 
+                            name_to_check)) && sub_el != element)
+            DBUG_RETURN(FALSE);
+      }
     }
   } 
   DBUG_RETURN(TRUE);
@@ -326,6 +315,7 @@ bool partition_info::has_unique_name(partition_element *element)
     Checks that the list of names in the partitions doesn't contain any
     duplicated names.
 */
+
 char *partition_info::has_unique_names()
 {
   DBUG_ENTER("partition_info::has_unique_names");
@@ -338,13 +328,15 @@ char *partition_info::has_unique_names()
     if (! has_unique_name(el))
       DBUG_RETURN(el->partition_name);
       
-    if (el->subpartitions.is_empty()) continue;
-    List_iterator<partition_element> subparts_it(el->subpartitions);
-    partition_element *subel;
-    while (subel= (subparts_it++))
+    if (!el->subpartitions.is_empty())
     {
-      if (! has_unique_name(subel))
-        DBUG_RETURN(subel->partition_name);
+      List_iterator<partition_element> subparts_it(el->subpartitions);
+      partition_element *subel;
+      while (subel= (subparts_it++))
+      {
+        if (! has_unique_name(subel))
+          DBUG_RETURN(subel->partition_name);
+      }
     }
   } 
   DBUG_RETURN(NULL);

sql/partition_info.h

-/* Copyright (C) 2000,2004 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+/* Copyright (C) 2000,2006 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by

sql/sql_partition.cc

@@ -15,10 +15,10 @@
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
 
 /*
-  This file was introduced as a container for general functionality related
+  This file is a container for general functionality related
   to partitioning introduced in MySQL version 5.1. It contains functionality
-  used by all handlers that support partitioning, which in the first version
-  is the partitioning handler itself and the NDB handler.
+  used by all handlers that support partitioning, such as
+  the partitioning handler itself and the NDB handler.
 
   The first version was written by Mikael Ronstrom.
 
@@ -26,7 +26,7 @@
   partitioning and composite partitioning (hereafter called subpartitioning)
   where each RANGE/LIST partitioning is HASH partitioned. The hash function
   can either be supplied by the user or by only a list of fields (also
-  called KEY partitioning, where the MySQL server will use an internal
+  called KEY partitioning), where the MySQL server will use an internal
   hash function.
   There are quite a few defaults that can be used as well.
 */

sql/sql_partition.h

-/* Copyright (C) 2005 MySQL AB
+/* Copyright (C) 2006 MySQL AB
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by

win/cmakefiles/sql

@@ -40,7 +40,7 @@ ADD_EXECUTABLE(mysqld ../sql-common/client.c derror.cc des_key_file.cc discover.
 					  sql_state.c sql_string.cc sql_table.cc sql_test.cc sql_trigger.cc sql_udf.cc sql_union.cc
 					  sql_update.cc sql_view.cc sql_yacc.h sql_yacc.cc strfunc.cc table.cc thr_malloc.cc time.cc tztime.cc
 					  uniques.cc unireg.cc item_xmlfunc.cc rpl_tblmap.cc sql_binlog.cc event_executor.cc
-					  event_timed.cc sql_tablespace.cc event.cc ../sql-common/my_user.c partition_info.cpp
+					  event_timed.cc sql_tablespace.cc event.cc ../sql-common/my_user.c partition_info.cc
 					  ${PROJECT_SOURCE_DIR}/sql/sql_yacc.cc
   					  ${PROJECT_SOURCE_DIR}/sql/sql_yacc.h
 					  ${PROJECT_SOURCE_DIR}/include/mysqld_error.h