v1-0001-Remove-meaningless-const-qualifier-from-ginCompre.patch

From 0d0243dbbf59c745577f9de874f00281943b829a Mon Sep 17 00:00:00 2001
From: "Chao Li (Evan)" <lic@highgo.com>
Date: Wed, 29 Oct 2025 11:36:43 +0800
Subject: [PATCH v1] Remove meaningless const qualifier from
 ginCompressPostingList()

The parameter "ipd" was previously declared as "const ItemPointer",
but this const qualifier was ineffective. The function copies elements
of "ipd" into a returned structure that expects a mutable
ItemPointerData *, so the pointer itself is not treated as read-only.
Remove the const to better reflect the actual usage and avoid
confusing semantics.

Author: Chao Li <lic@highgo.com>
---
 src/backend/access/gin/ginpostinglist.c | 2 +-
 src/include/access/gin_private.h        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/backend/access/gin/ginpostinglist.c b/src/backend/access/gin/ginpostinglist.c
index 48eadec87b0..739d0c99d5f 100644
--- a/src/backend/access/gin/ginpostinglist.c
+++ b/src/backend/access/gin/ginpostinglist.c
@@ -194,7 +194,7 @@ decode_varbyte(unsigned char **ptr)
  * byte at the end, if any, is zero.
  */
 GinPostingList *
-ginCompressPostingList(const ItemPointer ipd, int nipd, int maxsize,
+ginCompressPostingList(ItemPointer ipd, int nipd, int maxsize,
 					   int *nwritten)
 {
 	uint64		prev;
diff --git a/src/include/access/gin_private.h b/src/include/access/gin_private.h
index 9ea303a7c1b..3abccf278e0 100644
--- a/src/include/access/gin_private.h
+++ b/src/include/access/gin_private.h
@@ -478,7 +478,7 @@ extern void ginInsertCleanup(GinState *ginstate, bool full_clean,
 
 /* ginpostinglist.c */
 
-extern GinPostingList *ginCompressPostingList(const ItemPointer ipd, int nipd,
+extern GinPostingList *ginCompressPostingList(ItemPointer ipd, int nipd,
 											  int maxsize, int *nwritten);
 extern int	ginPostingListDecodeAllSegmentsToTbm(GinPostingList *ptr, int len, TIDBitmap *tbm);
 
-- 
2.39.5 (Apple Git-154)