Use IsA macro, for sake of consistency

Reported-by: Shinya Kato <shinya11.kato@gmail.com>
Discussion: https://www.postgresql.org/message-id/CAOzEurS=PzRzGba3mpNXgEhbnQFA0dxXaU0ujCJ0aa9yMSH6Pw@mail.gmail.com

diff --git a/src/backend/commands/copy.c b/src/backend/commands/copy.c
index 0e92396dab74bbe21a6ebc92feaa6186c9ef8276..9c51384ab92d60262c5eac7d8c0cd36fb4926032 100644 (file)
--- a/src/backend/commands/copy.c
+++ b/src/backend/commands/copy.c
@@ -488,7 +488,7 @@ defGetCopyRejectLimitOption(DefElem *def)
                                (errcode(ERRCODE_SYNTAX_ERROR),
                                 errmsg("%s requires a numeric value",
                                                def->defname)));
-       else if (nodeTag(def->arg) == T_String)
+       else if (IsA(def->arg, String))
                reject_limit = pg_strtoint64(strVal(def->arg));
        else
                reject_limit = defGetInt64(def);