automerge

sql/parse_file.cc

@@ -21,6 +21,9 @@
 #include <my_sys.h>
 #include <my_dir.h>
 
+/* from sql_db.cc */
+extern long mysql_rm_arc_files(THD *thd, MY_DIR *dirp, const char *org_path);
+
 
 /*
   write string with escaping
@@ -265,8 +268,9 @@ sql_create_definition_file(const LEX_STRING *dir, const LEX_STRING *file_name,
     DBUG_RETURN(TRUE);
   }
 
-  // archive copies management
   path[path_end]='\0';
+#ifdef FRM_ARCHIVE
+  // archive copies management: disabled unused feature (see bug #17823).
   if (!access(path, F_OK))
   {
     if (old_version != ULONGLONG_MAX && max_versions != 0)
@@ -313,6 +317,7 @@ sql_create_definition_file(const LEX_STRING *dir, const LEX_STRING *file_name,
       }
     }
   }
+#endif//FRM_ARCHIVE
 
   {
     // rename temporary file
@@ -337,6 +342,7 @@ err_w_file:
 
   SYNOPSIS
     rename_in_schema_file
+    thd               thread handler
     schema            name of given schema           
     old_name          original file name
     new_name          new file name
@@ -348,7 +354,8 @@ err_w_file:
     1 - Error (only if renaming of frm failed)
 
 */
-my_bool rename_in_schema_file(const char *schema, const char *old_name, 
+my_bool rename_in_schema_file(THD *thd,
+                              const char *schema, const char *old_name, 
                               const char *new_name, ulonglong revision, 
                               uint num_view_backups)
 {
@@ -365,10 +372,11 @@ my_bool rename_in_schema_file(const char *schema, const char *old_name,
   if (my_rename(old_path, new_path, MYF(MY_WME)))
     return 1;
 
-  /* check if arc_dir exists */
+  /* check if arc_dir exists: disabled unused feature (see bug #17823). */
   strxnmov(arc_path, FN_REFLEN, mysql_data_home, "/", schema, "/arc", NullS);
   (void) unpack_filename(arc_path, arc_path);
   
+#ifdef FRM_ARCHIVE
   if (revision > 0 && !access(arc_path, F_OK))
   {
     ulonglong limit= ((revision > num_view_backups) ?
@@ -384,6 +392,16 @@ my_bool rename_in_schema_file(const char *schema, const char *old_name,
       my_rename(old_path, new_path, MYF(0));
     }
   }
+#else//FRM_ARCHIVE
+  { // remove obsolete 'arc' directory and files if any
+    MY_DIR *new_dirp;
+    if ((new_dirp = my_dir(arc_path, MYF(MY_DONT_SORT))))
+    {
+      DBUG_PRINT("my",("Archive subdir found: %s", arc_path));
+      (void) mysql_rm_arc_files(thd, new_dirp, arc_path);
+    }
+  }
+#endif//FRM_ARCHIVE
   return 0;
 }
 

sql/parse_file.h

@@ -82,7 +82,8 @@ my_bool
 sql_create_definition_file(const LEX_STRING *dir, const  LEX_STRING *file_name,
 			   const LEX_STRING *type,
 			   gptr base, File_option *parameters, uint versions);
-my_bool rename_in_schema_file(const char *schema, const char *old_name, 
+my_bool rename_in_schema_file(THD *thd,
+                              const char *schema, const char *old_name,
                               const char *new_name, ulonglong revision,
                               uint num_view_backups);
 

sql/sql_db.cc

@@ -35,7 +35,7 @@ static long mysql_rm_known_files(THD *thd, MY_DIR *dirp,
 				 const char *db, const char *path, uint level, 
                                  TABLE_LIST **dropped_tables);
          
-static long mysql_rm_arc_files(THD *thd, MY_DIR *dirp, const char *org_path);
+long mysql_rm_arc_files(THD *thd, MY_DIR *dirp, const char *org_path);
 static my_bool rm_dir_w_symlink(const char *org_path, my_bool send_error);
 /* Database options hash */
 static HASH dboptions;
@@ -906,7 +906,11 @@ static long mysql_rm_known_files(THD *thd, MY_DIR *dirp, const char *db,
     else if (file->name[0] == 'a' && file->name[1] == 'r' &&
              file->name[2] == 'c' && file->name[3] == '\0')
     {
-      /* .frm archive */
+      /* .frm archive:
+        Those archives are obsolete, but following code should
+        exist to remove existent "arc" directories.
+        See #ifdef FRM_ARCHIVE directives for obsolete code.
+      */
       char newpath[FN_REFLEN];
       MY_DIR *new_dirp;
       strxmov(newpath, org_path, "/", "arc", NullS);
@@ -1061,9 +1065,13 @@ static my_bool rm_dir_w_symlink(const char *org_path, my_bool send_error)
   RETURN
     > 0 number of removed files
     -1  error
+
+  NOTE
+    A support of "arc" directories is obsolete, however this
+    function should exist to remove existent "arc" directories.
+    See #ifdef FRM_ARCHIVE directives for obsolete code.
 */
-static long mysql_rm_arc_files(THD *thd, MY_DIR *dirp,
-				 const char *org_path)
+long mysql_rm_arc_files(THD *thd, MY_DIR *dirp, const char *org_path)
 {
   long deleted= 0;
   ulong found_other_files= 0;
@@ -1105,6 +1113,7 @@ static long mysql_rm_arc_files(THD *thd, MY_DIR *dirp,
     {
       goto err;
     }
+    deleted++;
   }
   if (thd->killed)
     goto err;

sql/sql_view.cc

@@ -1858,7 +1858,7 @@ mysql_rename_view(THD *thd,
       goto err;
 
     /* rename view and it's backups */
-    if (rename_in_schema_file(view->db, view->table_name, new_name, 
+    if (rename_in_schema_file(thd, view->db, view->table_name, new_name, 
                               view_def.revision - 1, num_view_backups))
       goto err;
 
@@ -1877,7 +1877,7 @@ mysql_rename_view(THD *thd,
                                    num_view_backups)) 
     {
       /* restore renamed view in case of error */
-      rename_in_schema_file(view->db, new_name, view->table_name, 
+      rename_in_schema_file(thd, view->db, new_name, view->table_name, 
                             view_def.revision - 1, num_view_backups);
       goto err;
     }