From f841b4bbafe5203fd9edc90b6fd8ad049ea253a0 Mon Sep 17 00:00:00 2001
From: Michael Paquier <michael@paquier.xyz>
Date: Fri, 8 Aug 2025 15:52:05 +0900
Subject: [PATCH v4 10/15] Switch pg_column_toast_chunk_id() return value from
 oid to bigint

This is required for a follow-up patch that will add support for 8-byte
TOAST values, with this function being changed so as it is able to
support the largest TOAST value type available.

XXX: Bump catalog version.
---
 src/include/catalog/pg_proc.dat   | 2 +-
 src/backend/utils/adt/varlena.c   | 2 +-
 doc/src/sgml/func/func-admin.sgml | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 1f6df80ad312..27887436ede0 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -7735,7 +7735,7 @@
   proargtypes => 'any', prosrc => 'pg_column_compression' },
 { oid => '6316', descr => 'chunk ID of on-disk TOASTed value',
   proname => 'pg_column_toast_chunk_id', provolatile => 's',
-  prorettype => 'oid', proargtypes => 'any',
+  prorettype => 'int8', proargtypes => 'any',
   prosrc => 'pg_column_toast_chunk_id' },
 { oid => '2322',
   descr => 'total disk space usage for the specified tablespace',
diff --git a/src/backend/utils/adt/varlena.c b/src/backend/utils/adt/varlena.c
index d76386407a08..26c720449f7b 100644
--- a/src/backend/utils/adt/varlena.c
+++ b/src/backend/utils/adt/varlena.c
@@ -4249,7 +4249,7 @@ pg_column_toast_chunk_id(PG_FUNCTION_ARGS)
 
 	toast_valueid = toast_external_info_get_value(attr);
 
-	PG_RETURN_OID(toast_valueid);
+	PG_RETURN_UINT64(toast_valueid);
 }
 
 /*
diff --git a/doc/src/sgml/func/func-admin.sgml b/doc/src/sgml/func/func-admin.sgml
index 446fdfe56f4f..1e83584ac579 100644
--- a/doc/src/sgml/func/func-admin.sgml
+++ b/doc/src/sgml/func/func-admin.sgml
@@ -1571,7 +1571,7 @@ postgres=# SELECT '0/0'::pg_lsn + pd.segment_number * ps.setting::int + :offset
          <primary>pg_column_toast_chunk_id</primary>
         </indexterm>
         <function>pg_column_toast_chunk_id</function> ( <type>"any"</type> )
-        <returnvalue>oid</returnvalue>
+        <returnvalue>bigint</returnvalue>
        </para>
        <para>
         Shows the <structfield>chunk_id</structfield> of an on-disk
-- 
2.50.0

