From c663f1f62b130eab841a098f0f8af088721feb3d Mon Sep 17 00:00:00 2001
From: Mark Travis <mtravis@ripple.com>
Date: Sat, 20 Nov 2021 15:51:32 -0800
Subject: [PATCH] Make tx() function against a read-only postgres instance.

---
 src/ripple/core/Pg.cpp | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/src/ripple/core/Pg.cpp b/src/ripple/core/Pg.cpp
index 2e2121c11..df0f6da5e 100644
--- a/src/ripple/core/Pg.cpp
+++ b/src/ripple/core/Pg.cpp
@@ -792,11 +792,7 @@ CREATE OR REPLACE FUNCTION tx (
     _in_trans_id bytea
 ) RETURNS jsonb AS $$
 DECLARE
-    _min_ledger        bigint := min_ledger();
-    _min_seq           bigint := (SELECT ledger_seq
-                                    FROM ledgers
-                                   WHERE ledger_seq = _min_ledger
-                                     FOR SHARE);
+    _min_seq           bigint := min_ledger();
     _max_seq           bigint := max_ledger();
     _ledger_seq        bigint;
     _nodestore_hash    bytea;