From: Michael Paquier <michael@paquier.xyz>
Date: Thu, 6 Nov 2025 07:22:12 +0000 (+0900)
Subject: Document some structures in attribute_stats.c
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d6c132d83bff76acd569175af7f53b7c1bf429f4;p=thirdparty%2Fpostgresql.git

Document some structures in attribute_stats.c

Like relation_stats.c, these structures are used to track the argument
number, names and types of pg_restore_attribute_stats() and
pg_clear_attribute_stats().

Extracted from a larger patch by the same author, reworded by me for
consistency with relation_stats.c.

Author: Corey Huinker <corey.huinker@gmail.com>
Discussion: https://postgr.es/m/CADkLM=dpz3KFnqP-dgJ-zvRvtjsa8UZv8wDAQdqho=qN3kX0Zg@mail.gmail.com
---

diff --git a/src/backend/statistics/attribute_stats.c b/src/backend/statistics/attribute_stats.c
index 401bf571f27..ef4d768feab 100644
--- a/src/backend/statistics/attribute_stats.c
+++ b/src/backend/statistics/attribute_stats.c
@@ -36,6 +36,11 @@
 #define DEFAULT_AVG_WIDTH      Int32GetDatum(0) /* unknown */
 #define DEFAULT_N_DISTINCT     Float4GetDatum(0.0)	/* unknown */
 
+/*
+ * Positional argument numbers, names, and types for
+ * attribute_statistics_update() and pg_restore_attribute_stats().
+ */
+
 enum attribute_stats_argnum
 {
 	ATTRELSCHEMA_ARG = 0,
@@ -82,6 +87,11 @@ static struct StatsArgInfo attarginfo[] =
 	[NUM_ATTRIBUTE_STATS_ARGS] = {0}
 };
 
+/*
+ * Positional argument numbers, names, and types for
+ * pg_clear_attribute_stats().
+ */
+
 enum clear_attribute_stats_argnum
 {
 	C_ATTRELSCHEMA_ARG = 0,