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Custom reloptions for table AM

Let table AM define custom reloptions for its tables. This allows specifying
AM-specific parameters by the WITH clause when creating a table.

The reloptions, which could be used outside of table AM, are now extracted
into the CommonRdOptions data structure.  These options could be by decision
of table AM directly specified by a user or calculated in some way.

The new test module test_tam_options evaluates the ability to set up custom
reloptions and calculate fields of CommonRdOptions on their base.

The code may use some parts from prior work by Hao Wu.

Discussion: https://postgr.es/m/CAPpHfdurb9ycV8udYqM%3Do0sPS66PJ4RCBM1g-bBpvzUfogY0EA%40mail.gmail.com
Discussion: https://postgr.es/m/AMUA1wBBBxfc3tKRLLdU64rb.1.1683276279979.Hmail.wuhao%40hashdata.cn
Reviewed-by: Reviewed-by: Pavel Borisov, Matthias van de Meent, Jess Davis
This commit is contained in:
Alexander Korotkov
2024-04-08 11:23:28 +03:00
parent 6f3d8d5e7c
commit 9bd99f4c26
29 changed files with 639 additions and 161 deletions

View File

@@ -85,6 +85,9 @@ create_ctas_internal(List *attrList, IntoClause *into)
Datum toast_options;
static char *validnsps[] = HEAP_RELOPT_NAMESPACES;
ObjectAddress intoRelationAddr;
const TableAmRoutine *tableam = NULL;
Oid accessMethodId = InvalidOid;
Relation rel;
/* This code supports both CREATE TABLE AS and CREATE MATERIALIZED VIEW */
is_matview = (into->viewQuery != NULL);
@@ -125,7 +128,15 @@ create_ctas_internal(List *attrList, IntoClause *into)
validnsps,
true, false);
(void) heap_reloptions(RELKIND_TOASTVALUE, toast_options, true);
rel = relation_open(intoRelationAddr.objectId, AccessShareLock);
accessMethodId = table_relation_toast_am(rel);
relation_close(rel, AccessShareLock);
if (OidIsValid(accessMethodId))
{
tableam = GetTableAmRoutineByAmOid(accessMethodId);
(void) tableam_reloptions(tableam, RELKIND_TOASTVALUE, toast_options, NULL, true);
}
NewRelationCreateToastTable(intoRelationAddr.objectId, toast_options);