Fixed bug in ALTER TABLE and RENAME TABLE when running with lower-case-table-names.

Docs/manual.texi

@@ -46929,10 +46929,14 @@ not yet 100% confident in this code.
 @appendixsubsec Changes in release 3.23.53
 @itemize @bullet
 @item
+Fixed bug in @code{ALTER TABLE} and @code{RENAME TABLE} when running with
+@code{-O lower_case_table_names=1} (typically on windows) when giving the
+table name in uppercase.
+@item
 Fixed unlikely core dump with @code{SELECT ... ORDER BY ... LIMIT}.
 @item
 Changed @code{AND/OR} to report that they can return NULL. This fixes a
-bug in @code{GROUP BY} on @code{AND/OR} expression that return
+bug in @code{GROUP BY} on @code{AND/OR} expressions that return
 @code{NULL}.
 @item
 Fixed a bug that @code{OPTIMIZE} of locked and modified MyISAM table,

sql/sql_table.cc

@@ -779,7 +779,7 @@ bool close_cached_table(THD *thd,TABLE *table)
 #if defined(USING_TRANSACTIONS) || defined( __WIN__) || defined( __EMX__) || !defined(OS2)
     /* Wait until all there are no other threads that has this table open */
     while (remove_table_from_cache(thd,table->table_cache_key,
-				   table->table_name))
+				   table->real_name))
     {
       dropping_tables++;
       (void) pthread_cond_wait(&COND_refresh,&LOCK_open);
@@ -787,7 +787,7 @@ bool close_cached_table(THD *thd,TABLE *table)
     }
 #else
     (void) remove_table_from_cache(thd,table->table_cache_key,
-				   table->table_name);
+				   table->real_name);
 #endif
     /* When lock on LOCK_open is freed other threads can continue */
     pthread_cond_broadcast(&COND_refresh);