postgrespro.git / summary / log / commit / refs

commit    1bbd608fdae7af314d8e2229e369a45a3da83cd8
Author:   Michael Paquier <michael@paquier.xyz>
Date:     Thu Nov 14 03:34:28 2019 +0000

    Split handling of reloptions for partitioned tables
    
    Partitioned tables do not have relation options yet, but, similarly to
    what's done for views which have their own parsing table, it could make
    sense to introduce new parameters for some of the existing default ones
    like fillfactor, autovacuum, etc.  Splitting things has the advantage to
    make the information stored in rd_options include only the necessary
    information, reducing the amount of memory used for a relcache entry
    with partitioned tables if new reloptions are introduced at this level.
    
    Author:  Nikolay Shaplov
    Reviewed-by: Amit Langote, Michael Paquier
    Discussion: https://postgr.es/m/1627387.Qykg9O6zpu@x200m


 src/backend/access/common/reloptions.c | 22 ++++++++++++++++++----
 src/backend/commands/tablecmds.c       | 19 ++++++++++++++-----
 src/include/access/reloptions.h        |  1 +
 3 files changed, 33 insertions(+), 9 deletions(-)

diff --git a/src/backend/access/common/reloptions.c b/src/backend/access/common/reloptions.c
index d8790ad7a3..feb105e1ba 100644
--- a/src/backend/access/common/reloptions.c
+++ b/src/backend/access/common/reloptions.c
@@ -1099,9 +1099,11 @@ extractRelOptions(HeapTuple tuple, TupleDesc tupdesc,
 		case RELKIND_RELATION:
 		case RELKIND_TOASTVALUE:
 		case RELKIND_MATVIEW:
-		case RELKIND_PARTITIONED_TABLE:
 			options = heap_reloptions(classForm->relkind, datum, false);
 			break;
+		case RELKIND_PARTITIONED_TABLE:
+			options = partitioned_table_reloptions(datum, false);
+			break;
 		case RELKIND_VIEW:
 			options = view_reloptions(datum, false);
 			break;
@@ -1571,6 +1573,21 @@ build_reloptions(Datum reloptions, bool validate,
 	return rdopts;
 }
 
+/*
+ * Option parser for partitioned tables
+ */
+bytea *
+partitioned_table_reloptions(Datum reloptions, bool validate)
+{
+	/*
+	 * There are no options for partitioned tables yet, but this is able to do
+	 * some validation.
+	 */
+	return (bytea *) build_reloptions(reloptions, validate,
+									  RELOPT_KIND_PARTITIONED,
+									  0, NULL, 0);
+}
+
 /*
  * Option parser for views
  */
@@ -1614,9 +1631,6 @@ heap_reloptions(char relkind, Datum reloptions, bool validate)
 		case RELKIND_RELATION:
 		case RELKIND_MATVIEW:
 			return default_reloptions(reloptions, validate, RELOPT_KIND_HEAP);
-		case RELKIND_PARTITIONED_TABLE:
-			return default_reloptions(reloptions, validate,
-									  RELOPT_KIND_PARTITIONED);
 		default:
 			/* other relkinds are not supported */
 			return NULL;
diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index 496c206332..45aae5955d 100644
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -719,10 +719,17 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
 	reloptions = transformRelOptions((Datum) 0, stmt->options, NULL, validnsps,
 									 true, false);
 
-	if (relkind == RELKIND_VIEW)
-		(void) view_reloptions(reloptions, true);
-	else
-		(void) heap_reloptions(relkind, reloptions, true);
+	switch (relkind)
+	{
+		case RELKIND_VIEW:
+			(void) view_reloptions(reloptions, true);
+			break;
+		case RELKIND_PARTITIONED_TABLE:
+			(void) partitioned_table_reloptions(reloptions, true);
+			break;
+		default:
+			(void) heap_reloptions(relkind, reloptions, true);
+	}
 
 	if (stmt->ofTypename)
 	{
@@ -12187,9 +12194,11 @@ ATExecSetRelOptions(Relation rel, List *defList, AlterTableType operation,
 		case RELKIND_RELATION:
 		case RELKIND_TOASTVALUE:
 		case RELKIND_MATVIEW:
-		case RELKIND_PARTITIONED_TABLE:
 			(void) heap_reloptions(rel->rd_rel->relkind, newOptions, true);
 			break;
+		case RELKIND_PARTITIONED_TABLE:
+			(void) partitioned_table_reloptions(newOptions, true);
+			break;
 		case RELKIND_VIEW:
 			(void) view_reloptions(newOptions, true);
 			break;
diff --git a/src/include/access/reloptions.h b/src/include/access/reloptions.h
index db42aa35e0..ee7248ad58 100644
--- a/src/include/access/reloptions.h
+++ b/src/include/access/reloptions.h
@@ -306,6 +306,7 @@ extern bytea *default_reloptions(Datum reloptions, bool validate,
 								 relopt_kind kind);
 extern bytea *heap_reloptions(char relkind, Datum reloptions, bool validate);
 extern bytea *view_reloptions(Datum reloptions, bool validate);
+extern bytea *partitioned_table_reloptions(Datum reloptions, bool validate);
 extern bytea *index_reloptions(amoptions_function amoptions, Datum reloptions,
 							   bool validate);
 extern bytea *attribute_reloptions(Datum reloptions, bool validate);


[parent: 80ef34fc7075]