Function free_parsestate

src/backend/parser/parse_node.c:76–94

* free_parsestate * Release a ParseState and any subsidiary resources. */

 *		Release a ParseState and any subsidiary resources.
 */
void
free_parsestate(ParseState *pstate)
{
	/*
	 * Check that we did not produce too many resnos; at the very least we
	 * cannot allow more than 2^16, since that would exceed the range of a
	 * AttrNumber. It seems safest to use MaxTupleAttributeNumber.
	 */
	if (pstate->p_next_resno - 1 > MaxTupleAttributeNumber)
		ereport(ERROR,
				(errcode(ERRCODE_TOO_MANY_COLUMNS),
				 errmsg("target lists can have at most %d entries",
						MaxTupleAttributeNumber)));

	if (pstate->p_target_relation != NULL)
		table_close(pstate->p_target_relation, NoLock);

	pfree(pstate);
}


/*