*** pgsql/src/include/utils/snapshot.h	2009/06/11 14:49:13	1.5
--- pgsql/src/include/utils/snapshot.h	2009/12/19 01:32:44	1.6
***************
*** 6,12 ****
   * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
   * Portions Copyright (c) 1994, Regents of the University of California
   *
!  * $PostgreSQL: pgsql/src/include/utils/snapshot.h,v 1.4 2009/01/01 17:24:02 momjian Exp $
   *
   *-------------------------------------------------------------------------
   */
--- 6,12 ----
   * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
   * Portions Copyright (c) 1994, Regents of the University of California
   *
!  * $PostgreSQL: pgsql/src/include/utils/snapshot.h,v 1.5 2009/06/11 14:49:13 momjian Exp $
   *
   *-------------------------------------------------------------------------
   */
*************** typedef struct SnapshotData
*** 49,56 ****
  	uint32		xcnt;			/* # of xact ids in xip[] */
  	TransactionId *xip;			/* array of xact IDs in progress */
  	/* note: all ids in xip[] satisfy xmin <= xip[i] < xmax */
! 	int32		subxcnt;		/* # of xact ids in subxip[], -1 if overflow */
  	TransactionId *subxip;		/* array of subxact IDs in progress */
  
  	/*
  	 * note: all ids in subxip[] are >= xmin, but we don't bother filtering
--- 49,58 ----
  	uint32		xcnt;			/* # of xact ids in xip[] */
  	TransactionId *xip;			/* array of xact IDs in progress */
  	/* note: all ids in xip[] satisfy xmin <= xip[i] < xmax */
! 	int32		subxcnt;		/* # of xact ids in subxip[] */
  	TransactionId *subxip;		/* array of subxact IDs in progress */
+ 	bool		suboverflowed;	/* has the subxip array overflowed? */
+ 	bool		takenDuringRecovery;	/* recovery-shaped snapshot? */
  
  	/*
  	 * note: all ids in subxip[] are >= xmin, but we don't bother filtering