Function transformPartitionCmd

src/backend/parser/parse_utilcmd.c:5157–5203

* transformPartitionCmd * Analyze the ATTACH/DETACH PARTITION command * * In case of the ATTACH PARTITION command, cxt->partbound is set to the * transformed value of cmd->bound. */

 * transformed value of cmd->bound.
 */
static void
transformPartitionCmd(CreateStmtContext *cxt, PartitionCmd *cmd)
{
	Relation	parentRel = cxt->rel;

	switch (parentRel->rd_rel->relkind)
	{
		case RELKIND_PARTITIONED_TABLE:
			/* transform the partition bound, if any */
			Assert(RelationGetPartitionKey(parentRel) != NULL);
			if (cmd->bound != NULL)
				cxt->partbound = transformPartitionBound(cxt->pstate, parentRel,
														 RelationGetPartitionKey(parentRel), cmd->bound);
			break;
		case RELKIND_PARTITIONED_INDEX:

			/*
			 * A partitioned index cannot have a partition bound set.  ALTER
			 * INDEX prevents that with its grammar, but not ALTER TABLE.
			 */
			if (cmd->bound != NULL)
				ereport(ERROR,
						(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
						 errmsg("\"%s\" is not a partitioned table",
								RelationGetRelationName(parentRel))));
			break;
		case RELKIND_RELATION:
			/* the table must be partitioned */
			ereport(ERROR,
					(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
					 errmsg("table \"%s\" is not partitioned",
							RelationGetRelationName(parentRel))));
			break;
		case RELKIND_INDEX:
			/* the index must be partitioned */
			ereport(ERROR,
					(errcode(ERRCODE_INVALID_OBJECT_DEFINITION),
					 errmsg("index \"%s\" is not partitioned",
							RelationGetRelationName(parentRel))));
			break;
		default:
			/* parser shouldn't let this case through */
			elog(ERROR, "\"%s\" is not a partitioned table or index",
				 RelationGetRelationName(parentRel));
			break;
	}
}

/*
 * transformPartitionBound