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authorMasahiko Sawada2025-10-08 17:05:04 +0000
committerMasahiko Sawada2025-10-08 17:05:04 +0000
commitd3b6183dd988928dd369b4b7d641917e77f1ae4e (patch)
tree021b43628b3e43871984121ba75c4a41b8992720 /src/include/replication
parent14ad0d7bf2b8d5f26061df7cbdf18cfffcdcb225 (diff)
Add mem_exceeded_count column to pg_stat_replication_slots.
This commit introduces a new column mem_exceeded_count to the pg_stat_replication_slots view. This counter tracks how often the memory used by logical decoding exceeds the logical_decoding_work_mem limit. The new statistic helps users determine whether exceeding the logical_decoding_work_mem limit is a rare occurrences or a frequent issue, information that wasn't available through existing statistics. Bumps catversion. Author: Bertrand Drouvot <bertranddrouvot.pg@gmail.com> Reviewed-by: Masahiko Sawada <sawada.mshk@gmail.com> Reviewed-by: Amit Kapila <amit.kapila16@gmail.com> Reviewed-by: shveta malik <shveta.malik@gmail.com> Reviewed-by: Ashutosh Bapat <ashutosh.bapat.oss@gmail.com> Reviewed-by: Chao Li <li.evan.chao@gmail.com> Discussion: https://postgr.es/m/978D21E8-9D3B-40EA-A4B1-F87BABE7868C@yesql.se
Diffstat (limited to 'src/include/replication')
-rw-r--r--src/include/replication/reorderbuffer.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/include/replication/reorderbuffer.h b/src/include/replication/reorderbuffer.h
index 91dc7e5e448..3cbe106a3c7 100644
--- a/src/include/replication/reorderbuffer.h
+++ b/src/include/replication/reorderbuffer.h
@@ -690,6 +690,9 @@ struct ReorderBuffer
int64 streamCount; /* streaming invocation counter */
int64 streamBytes; /* amount of data decoded */
+ /* Number of times the logical_decoding_work_mem limit has been reached */
+ int64 memExceededCount;
+
/*
* Statistics about all the transactions sent to the decoding output
* plugin