Fix compiler warning introduced in commit 705e20f.

Amit Kapila · Amit Kapila · commit 695f459f1713 · 2022-03-15T08:11:17.000+05:30
Reported-by: Nathan Bossart Author: Nathan Bossart Reviewed-by: Osumi Takamichi Discussion : https://postgr.es/m/20220314230424.GA1085716@nathanxps13
diff --git a/src/backend/replication/logical/worker.c b/src/backend/replication/logical/worker.c
@@ -3387,7 +3387,7 @@ TwoPhaseTransactionGid(Oid subid, TransactionId xid, char *gid, int szgid)
 static void
 start_table_sync(XLogRecPtr *origin_startpos, char **myslotname)
 {
-	char	   *syncslotname;
+	char	   *syncslotname = NULL;
 
 	Assert(am_tablesync_worker());
 

Original file line number	Diff line number	Diff line change
`@@ -3387,7 +3387,7 @@ TwoPhaseTransactionGid(Oid subid, TransactionId xid, char *gid, int szgid)`
`3387`	`3387`	`static void`
`3388`	`3388`	`start_table_sync(XLogRecPtr origin_startpos, char *myslotname)`
`3389`	`3389`	`{`
`3390`		`- char *syncslotname;`
	`3390`	`+ char *syncslotname = NULL;`
`3391`	`3391`
`3392`	`3392`	`Assert(am_tablesync_worker());`
`3393`	`3393`