diff --git a/src/backend/access/gin/gindatapage.c b/src/backend/access/gin/gindatapage.c
new file mode 100644
index 8504f4c..4be5b3c
*** a/src/backend/access/gin/gindatapage.c
--- b/src/backend/access/gin/gindatapage.c
*************** dataPlaceToPageLeafRecompress(Buffer buf
*** 802,808 ****
  		ptr += segsize;
  		newsize += segsize;
  	}
! 	Assert(newsize < GinDataLeafMaxContentSize);
  	GinDataLeafPageSetPostingListSize(page, newsize);
  	GinPageSetCompressed(page);	 /* in case it was in pre-9.4 format before */
  
--- 802,808 ----
  		ptr += segsize;
  		newsize += segsize;
  	}
! 	Assert(newsize <= GinDataLeafMaxContentSize);
  	GinDataLeafPageSetPostingListSize(page, newsize);
  	GinPageSetCompressed(page);	 /* in case it was in pre-9.4 format before */