* subversion/libsvn_wc/wc-metadata.sql   (STMT_CREATE_NODES_TRIGGERS/nodes_update_checksum_trigger):      Don't update the pristine table if the checksum didn't change.      We had a noticable slowdown on recording new timestamps and sizes in      an existing node, but this case is also reached from the post update      revision bump.   (STMT_UPGRADE_TO_29): Apply this change to existing working copies with      the next format bump.
* subversion/libsvn_wc/wc-metadata.sql
  (STMT_CREATE_NODES_TRIGGERS/nodes_update_checksum_trigger):
     Don't update the pristine table if the checksum didn't change.
     We had a noticable slowdown on recording new timestamps and sizes in
     an existing node, but this case is also reached from the post update
     revision bump.
  (STMT_UPGRADE_TO_29): Apply this change to existing working copies with
     the next format bump.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion