From d9a63e636cb5ad41d3105d62dce497141685ac22 Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter_e@gmx.net>
Date: Thu, 18 Oct 2018 19:28:28 +0200
Subject: [PATCH v2 1/2] Remove get_atttypmod()

This has been unused since 2004.  get_atttypetypmodcoll() is often a
better alternative.
---
 src/backend/utils/cache/lsyscache.c | 29 +----------------------------
 src/include/utils/lsyscache.h       |  1 -
 2 files changed, 1 insertion(+), 29 deletions(-)

diff --git a/src/backend/utils/cache/lsyscache.c b/src/backend/utils/cache/lsyscache.c
index 12b2532d95..c53bda9867 100644
--- a/src/backend/utils/cache/lsyscache.c
+++ b/src/backend/utils/cache/lsyscache.c
@@ -880,40 +880,13 @@ get_atttype(Oid relid, AttrNumber attnum)
 		return InvalidOid;
 }
 
-/*
- * get_atttypmod
- *
- *		Given the relation id and the attribute number,
- *		return the "atttypmod" field from the attribute relation.
- */
-int32
-get_atttypmod(Oid relid, AttrNumber attnum)
-{
-	HeapTuple	tp;
-
-	tp = SearchSysCache2(ATTNUM,
-						 ObjectIdGetDatum(relid),
-						 Int16GetDatum(attnum));
-	if (HeapTupleIsValid(tp))
-	{
-		Form_pg_attribute att_tup = (Form_pg_attribute) GETSTRUCT(tp);
-		int32		result;
-
-		result = att_tup->atttypmod;
-		ReleaseSysCache(tp);
-		return result;
-	}
-	else
-		return -1;
-}
-
 /*
  * get_atttypetypmodcoll
  *
  *		A three-fer: given the relation id and the attribute number,
  *		fetch atttypid, atttypmod, and attcollation in a single cache lookup.
  *
- * Unlike the otherwise-similar get_atttype/get_atttypmod, this routine
+ * Unlike the otherwise-similar get_atttype, this routine
  * raises an error if it can't obtain the information.
  */
 void
diff --git a/src/include/utils/lsyscache.h b/src/include/utils/lsyscache.h
index 8c57de77c0..23ed5324b5 100644
--- a/src/include/utils/lsyscache.h
+++ b/src/include/utils/lsyscache.h
@@ -87,7 +87,6 @@ extern char *get_attname(Oid relid, AttrNumber attnum, bool missing_ok);
 extern AttrNumber get_attnum(Oid relid, const char *attname);
 extern char get_attidentity(Oid relid, AttrNumber attnum);
 extern Oid	get_atttype(Oid relid, AttrNumber attnum);
-extern int32 get_atttypmod(Oid relid, AttrNumber attnum);
 extern void get_atttypetypmodcoll(Oid relid, AttrNumber attnum,
 					  Oid *typid, int32 *typmod, Oid *collid);
 extern char *get_collation_name(Oid colloid);

base-commit: 55853d666ce5d0024c50dc3d223346df28abfa70
-- 
2.19.1