Remove unused xl_heap_prune member, reason

f83d709760d8 refactored xl_heap_prune and added an unused member,
reason. While PruneReason is used when constructing this WAL record to
set the WAL record definition, it doesn't need to be stored in a
separate field in the record. Remove it.

We won't backport this, since modifying an exposed struct definition to
remove an unused field would do more harm than good.

Author: Melanie Plageman <melanieplageman@gmail.com>
Reported-by: Andres Freund <andres@anarazel.de>
Reviewed-by: Robert Haas <robertmhaas@gmail.com>
Discussion: https://postgr.es/m/tvvtfoxz5ykpsctxjbzxg3nldnzfc7geplrt2z2s54pmgto27y%40hbijsndifu45

diff --git a/src/include/access/heapam_xlog.h b/src/include/access/heapam_xlog.h
index 277df6b3cf0b352dc423292cfcd9fa354a0cd8bf..d4c0625b63228182fb975328f63708bfc2da09b3 100644 (file)
--- a/src/include/access/heapam_xlog.h
+++ b/src/include/access/heapam_xlog.h
@@ -284,7 +284,6 @@ typedef struct xl_heap_update
  */
 typedef struct xl_heap_prune
 {
-   uint8       reason;
    uint8       flags;
 
    /*