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Allow pg_set_relation_stats() to set relpages to -1.

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While the default value for relpages is 0, if a partitioned table with
at least one child has been analyzed, then the partititoned table will
have a relpages value of -1.

Author: Corey Huinker
Discussion: https://postgr.es/m/CADkLM=fajh1Lpcyr_XsMmq-9Z=SGk-u+_Zeac7Pt0RAN3uiVCg@mail.gmail.com
This commit is contained in:
Jeff Davis
2024-10-18 10:44:15 -07:00
parent 1bd4bc85ca
commit b391d882ff
4 changed files with 70 additions and 4 deletions
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9
src/backend/statistics/relation_stats.c
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@@ -99,11 +99,16 @@ relation_statistics_update(FunctionCallInfo fcinfo, int elevel)
{
int32 relpages = PG_GETARG_INT32(RELPAGES_ARG);
if (relpages < 0)
/*
* Partitioned tables may have relpages=-1. Note: for relations with
* no storage, relpages=-1 is not used consistently, but must be
* supported here.
*/
if (relpages < -1)
{
ereport(elevel,
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
errmsg("relpages cannot be < 0")));
errmsg("relpages cannot be < -1")));
table_close(crel, RowExclusiveLock);
return false;
}