Hi, thank you for pointing it out.

At Wed, 16 Sep 2015 14:02:30 +0900, Yugo Nagata <nag...@sraoss.co.jp> wrote in 
<20150916140230.a232426c.nag...@sraoss.co.jp>
> I found that codes about T_PrivGrantee was removed
> by the following commit;
> http://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=31eae6028eca4365e7165f5f33fee1ed0486aee0
> 
> but T_PrivGrantee is left in NodeTag in src/include/nodes/nodes.h.
> 
> Is it intended?

I simply forgot to remove it.

The comment for NodeTag says that,

====
 * Note that the numbers of the node tags are not contiguous. We left holes
 * here so that we can add more tags without changing the existing enum's.
 * (Since node tag numbers never exist outside backend memory, there's no
 * real harm in renumbering, it just costs a full rebuild ...)
====

However, I think it'd be better to be removed.

Thoughts? The attached patch simply removes it.

-- 
Kyotaro Horiguchi
NTT Open Source Software Center
>From c18f99b5eafaa7f3d2867762740bd35133afd3aa Mon Sep 17 00:00:00 2001
From: Kyotaro Horiguchi <horiguchi.kyot...@lab.ntt.co.jp>
Date: Wed, 16 Sep 2015 16:06:09 +0900
Subject: [PATCH] Remove unused node type tag T_PrivGrantee.

T_PrivGrantee became useless by the commit
31eae6028eca4365e7165f5f33fee1ed0486aee0. This commit renumbers some
of node type tags.
---
 src/include/nodes/nodes.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/src/include/nodes/nodes.h b/src/include/nodes/nodes.h
index 748e434..274480e 100644
--- a/src/include/nodes/nodes.h
+++ b/src/include/nodes/nodes.h
@@ -413,7 +413,6 @@ typedef enum NodeTag
 	T_SortGroupClause,
 	T_GroupingSet,
 	T_WindowClause,
-	T_PrivGrantee,
 	T_FuncWithArgs,
 	T_AccessPriv,
 	T_CreateOpClassItem,
-- 
1.8.3.1

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