Function EndCommand

src/backend/tcop/dest.c:170–218

---------------- * EndCommand - clean up the destination at end of command * ---------------- */

 * ----------------
 */
void
EndCommand(const QueryCompletion *qc, CommandDest dest, bool force_undecorated_output)
{
	char		completionTag[COMPLETION_TAG_BUFSIZE];
	CommandTag	tag;
	const char *tagname;

	switch (dest)
	{
		case DestRemote:
		case DestRemoteExecute:
		case DestRemoteSimple:

			/*
			 * We assume the tagname is plain ASCII and therefore requires no
			 * encoding conversion.
			 *
			 * We no longer display LastOid, but to preserve the wire
			 * protocol, we write InvalidOid where the LastOid used to be
			 * written.
			 *
			 * All cases where LastOid was written also write nprocessed
			 * count, so just Assert that rather than having an extra test.
			 */
			tag = qc->commandTag;
			tagname = GetCommandTagName(tag);

			if (command_tag_display_rowcount(tag) && !force_undecorated_output)
				snprintf(completionTag, COMPLETION_TAG_BUFSIZE,
						 tag == CMDTAG_INSERT ?
						 "%s 0 " UINT64_FORMAT : "%s " UINT64_FORMAT,
						 tagname, qc->nprocessed);
			else
				snprintf(completionTag, COMPLETION_TAG_BUFSIZE, "%s", tagname);
			pq_putmessage('C', completionTag, strlen(completionTag) + 1);

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

/* ----------------
 *		EndReplicationCommand - stripped down version of EndCommand