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Disallow modifying statistics on system columns.

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Reported-by: Heikki Linnakangas
Discussion: https://postgr.es/m/df3e1c41-4e6c-40ad-9636-98deefe488cd@iki.fi
This commit is contained in:
Jeff Davis
2024-11-22 12:07:46 -08:00
parent efdc7d7475
commit 869ee4f10e
3 changed files with 44 additions and 0 deletions
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14
src/backend/statistics/attribute_stats.c
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@@ -167,6 +167,13 @@ attribute_statistics_update(FunctionCallInfo fcinfo, int elevel)
stats_check_required_arg(fcinfo, attarginfo, ATTNAME_ARG);
attname = PG_GETARG_NAME(ATTNAME_ARG);
attnum = get_attnum(reloid, NameStr(*attname));
if (attnum < 0)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot modify statistics on system column \"%s\"",
NameStr(*attname))));
if (attnum == InvalidAttrNumber)
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_COLUMN),
@@ -882,6 +889,13 @@ pg_clear_attribute_stats(PG_FUNCTION_ARGS)
stats_check_required_arg(fcinfo, attarginfo, ATTNAME_ARG);
attname = PG_GETARG_NAME(ATTNAME_ARG);
attnum = get_attnum(reloid, NameStr(*attname));
if (attnum < 0)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot clear statistics on system column \"%s\"",
NameStr(*attname))));
if (attnum == InvalidAttrNumber)
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_COLUMN),