From a8d5967706aad5ceaa6a8a4ad7974f2b0eb7f3b6 Mon Sep 17 00:00:00 2001
From: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Date: Thu, 20 Aug 2026 04:51:24 +0000
Subject: [PATCH] Use index collation when locating replicated rows

Set the scan key collation from the index so replicated row lookups
use the index's ordering rules.

This follows PostgreSQL commit
https://github.com/postgres/postgres/commit/5e1963fb764e9cc092e0f7b58b28985c311431d9
---
 src/pgactive_executor.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/pgactive_executor.c b/src/pgactive_executor.c
index 75ec4742..444588e0 100644
--- a/src/pgactive_executor.c
+++ b/src/pgactive_executor.c
@@ -235,6 +235,8 @@ build_index_scan_key(ScanKey skey, Relation rel, Relation idxrel, pgactiveTupleD
 					regop,
 					tup->values[mainattno - 1]);
 
+		skey[attoff].sk_collation = idxrel->rd_indcollation[attoff];
+
 		if (tup->isnull[mainattno - 1])
 		{
 			hasnulls = true;