Function NullCommand

src/backend/tcop/dest.c:239–264

---------------- * NullCommand - tell dest that an empty query string was recognized * * This ensures that there will be a recognizable end to the response * to an Execute message in the extended query protocol. * ---------------- */

 * ----------------
 */
void
NullCommand(CommandDest dest)
{
	switch (dest)
	{
		case DestRemote:
		case DestRemoteExecute:
		case DestRemoteSimple:

			/* Tell the FE that we saw an empty query string */
			pq_putemptymessage('I');
			break;

		case DestNone:
		case DestDebug:
		case DestSPI:
		case DestTuplestore:
		case DestIntoRel:
		case DestCopyOut:
		case DestSQLFunction:
		case DestTransientRel:
		case DestTupleQueue:
		case DestPersistentstore:
			break;
	}
}

/* ----------------
 *		ReadyForQuery - tell dest that we are ready for a new query