Remove ugly call ImmediateSharedRelationCacheInvalidate()

from md.c.

diff --git a/src/backend/storage/smgr/md.c b/src/backend/storage/smgr/md.c
index 888ef8868403d3b6d04cb1a1768ad1cd4a1fb271..7382b1867d1601b1bbb5808d4cf97ecce281632a 100644 (file)
--- a/src/backend/storage/smgr/md.c
+++ b/src/backend/storage/smgr/md.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *       $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.63 2000/01/26 05:57:05 momjian Exp $
+ *       $Header: /cvsroot/pgsql/src/backend/storage/smgr/md.c,v 1.64 2000/02/07 02:38:18 inoue Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -205,15 +205,6 @@ mdunlink(Relation reln)
         */
        if (reln->rd_unlinked && reln->rd_fd < 0)
                return SM_SUCCESS;
-       /*
-        * This call isn't good for independency of md stuff,but 
-        * mdunlink() unlinks the base file immediately and couldn't
-        * be rollbacked in case of abort. We must guarantee all
-        * backends' relation cache invalidation here.
-        * This would be unnecessary if unlinking is postponed
-        * till end of transaction.
-        */
-       ImmediateSharedRelationCacheInvalidate(reln);
        /*
         * Force all segments of the relation to be opened, so that we
         * won't miss deleting any of them.
@@ -786,7 +777,6 @@ mdtruncate(Relation reln, int nblocks)
 #ifndef LET_OS_MANAGE_FILESIZE
        MemoryContext oldcxt;
        int                     priorblocks;
-       bool    invalregistered = false;
 #endif
 
        /* NOTE: mdnblocks makes sure we have opened all existing segments,
@@ -818,20 +808,6 @@ mdtruncate(Relation reln, int nblocks)
                         * a big file...
                         */
                        FileTruncate(v->mdfd_vfd, 0);
-                       /*
-                        * To call ImmediateSharedRelationCacheInvalidate() here
-                        * isn't good for independency of md stuff,but smgrunlink()
-                        * removes the base file immediately and couldn't be
-                        * rollbacked in case of abort. We must guarantee
-                        * all backends' relation cache invalidation here.
-                        * This would be unnecessary if the truncation is postponed
-                        * till end of transaction.
-                        */
-                       if (!invalregistered)
-                       {
-                               ImmediateSharedRelationCacheInvalidate(reln);
-                               invalregistered = true;
-                       }
                        FileUnlink(v->mdfd_vfd);
                        v = v->mdfd_chain;
                        Assert(ov != &Md_fdvec[fd]); /* we never drop the 1st segment */