*** src/backend/access/gist/gist.c
--- src/backend/access/gist/gist.c
***************
*** 489,495 ****
  	state.r = r;
  
  	/* Start from the root */
! 	firststack.blkno = GIST_ROOT_BLKNO;
  	firststack.lsn.xrecoff = 0;
  	firststack.parent = NULL;
  	firststack.downlinkoffnum = InvalidOffsetNumber;
--- 491,497 ----
  	state.r = r;
  
  	/* Start from the root */
! 	firststack.blkno = meta->gist_root;
  	firststack.lsn.xrecoff = 0;
  	firststack.parent = NULL;
  	firststack.downlinkoffnum = InvalidOffsetNumber;