Exemple #1
0
/* ----------------
 *		EndCommand - clean up the destination at end of command
 * ----------------
 */
void
EndCommand(const char *commandTag, CommandDest dest)
{
	StringInfoData buf;

	if (Gp_role == GP_ROLE_DISPATCH)
	{
		/*
		 * Just before a successful reply, let's see if the DTM has
		 * phase 2 retry work.
		 */
		doDtxPhase2Retry();
	}
	
	switch (dest)
	{
		case DestRemote:
		case DestRemoteExecute:
			if (Gp_role == GP_ROLE_EXECUTE && Gp_is_writer)
			{
				/*
				 * Extra information that indicates if the transaction made
				 * updates.
				 */
				sendQEDetails();

				pq_beginmessage(&buf, 'g');
				pq_sendstring(&buf, commandTag);

				AddQEWriterTransactionInfo(&buf);

				pq_endmessage(&buf);
			}
			else if (Gp_role == GP_ROLE_EXECUTE)
			{
				sendQEDetails();

				pq_beginmessage(&buf, 'C');
				pq_sendstring(&buf, commandTag);
				pq_endmessage(&buf);
			}
			else
				pq_puttextmessage('C', commandTag);
			break;
		case DestNone:
		case DestDebug:
		case DestSPI:
		case DestTuplestore:
		case DestIntoRel:
		case DestCopyOut:
			break;
	}
}
Exemple #2
0
/* ----------------
 *		EndCommand - clean up the destination at end of command
 * ----------------
 */
void
EndCommand(const char *commandTag, CommandDest dest)
{
	StringInfoData buf;

	if (Gp_role == GP_ROLE_DISPATCH)
	{
		/*
		 * Just before a successful reply, let's see if the DTM has
		 * phase 2 retry work.
		 */
		doDtxPhase2Retry();
	}
	
	switch (dest)
	{
		case DestRemote:
		case DestRemoteExecute:
			/*
			 * We assume the commandTag is plain ASCII and therefore
			 * requires no encoding conversion.
			 */
			if (Gp_role == GP_ROLE_EXECUTE)
			{
				sendQEDetails();

				pq_beginmessage(&buf, 'C');
				pq_send_ascii_string(&buf, commandTag);
				pq_endmessage(&buf);
			}
			else
				pq_putmessage('C', commandTag, strlen(commandTag) + 1);
			break;
		case DestNone:
		case DestDebug:
		case DestSPI:
		case DestTuplestore:
		case DestIntoRel:
		case DestCopyOut:
			break;
	}
}