From 92fcf47d9bc22195f4b3d5fe4ebd7f53abaa6ad9 Mon Sep 17 00:00:00 2001
From: Rohit Narurkar <rohit.narurkar@proton.me>
Date: Sun, 23 Jun 2024 07:30:26 +0100
Subject: [PATCH] fix: table kind should not change over the fse code trailing
 bits (#1345)

---
 aggregator/src/aggregation/decoder.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/aggregator/src/aggregation/decoder.rs b/aggregator/src/aggregation/decoder.rs
index fdf99153e9..702b23a57b 100644
--- a/aggregator/src/aggregation/decoder.rs
+++ b/aggregator/src/aggregation/decoder.rs
@@ -2785,6 +2785,13 @@ impl<const L: usize, const R: usize> DecoderConfig<L, R> {
                     ]),
                 );
 
+                // The FSE table kind remains the same.
+                cb.require_equal(
+                    "table_kind remains the same for trailing bits in tag=FseCode",
+                    meta.query_advice(config.fse_decoder.table_kind, Rotation::cur()),
+                    meta.query_advice(config.fse_decoder.table_kind, Rotation::prev()),
+                );
+
                 cb.gate(condition)
             },
         );