C++ (Cpp) pool_table_name_to_oid 예제들

예제 #1

파일: pool_select_walker.c 프로젝트: pgpool/pgpool2

/*
 * Walker function to extract table oids from SELECT statement.
 */
static bool
select_table_walker(Node *node, void *context)
{
	SelectContext *ctx = (SelectContext *) context;
	int			num_oids;

	if (node == NULL)
		return false;

	if (IsA(node, RangeVar))
	{
		RangeVar   *rgv = (RangeVar *) node;
		char	   *table;
		int			oid;

		table = make_table_name_from_rangevar(rgv);
		oid = pool_table_name_to_oid(table);

		if (oid)
		{
			if (POOL_MAX_SELECT_OIDS <= ctx->num_oids)
			{
				ereport(DEBUG1,
						(errmsg("extracting table oids from SELECT statement"),
						 errdetail("number of oids = %d exceeds the maximum limit = %d",
								   ctx->num_oids, POOL_MAX_SELECT_OIDS)));
				return false;
			}

			num_oids = ctx->num_oids++;

			ctx->table_oids[num_oids] = oid;
			strlcpy(ctx->table_names[num_oids], table, POOL_NAMEDATALEN);

			ereport(DEBUG1,
					(errmsg("extracting table oids from SELECT statement"),
					 errdetail("ctx->table_names[%d] = \"%s\"",
							   num_oids, ctx->table_names[num_oids])));
		}
	}

	return raw_expression_tree_walker(node, select_table_walker, context);
}

예제 #2

파일: pool_select_walker.c 프로젝트: ZheYuan/prestogres

/*
 * Walker function to extract table oids from SELECT statement.
 */
static bool
select_table_walker(Node *node, void *context)
{
	SelectContext	*ctx = (SelectContext *) context;
	int num_oids;

	if (node == NULL)
		return false;

	if (IsA(node, RangeVar))
	{
		RangeVar *rgv = (RangeVar *)node;
		char *table;
		int oid;
		char *s;

		table = make_table_name_from_rangevar(rgv);
		oid = pool_table_name_to_oid(table);

		if (oid)
		{
			if (POOL_MAX_SELECT_OIDS <= ctx->num_oids)
			{
				pool_debug("select_table_walker: number of oids exceeds");
				return false;
			}

			num_oids = ctx->num_oids++;

			ctx->table_oids[num_oids] = oid;
			s = strip_quote(table);
			strlcpy(ctx->table_names[num_oids], s, POOL_NAMEDATALEN);
			free(s);

			pool_debug("select_table_walker: ctx->table_names[%d] = %s",
			           num_oids, ctx->table_names[num_oids]);
		}
	}

	return raw_expression_tree_walker(node, select_table_walker, context);
}