backend/commands/command.c has a routine is_view() that tests for
view-ness by scanning pg_rewrite (all of it) to see if the given
relation has any ON SELECT rules.

This is only used to disallow AlterTableAddConstraint and
LockTableCommand on views.  While I don't care much about the
performance of AlterTableAddConstraint, it does bug me that this
might slow down LOCK TABLE a good deal.

Any objection to replacing this routine by a test for relkind = VIEW?

			regards, tom lane

Responses

• Re: is_view seems unnecessarily slow at 2001-01-08 18:05:41 from Jan Wieck

pgsql-hackers by date

Next:	From: Tom Lane	Date: 2001-01-06 20:41:59
	Subject: Re: global/pg_database ?
Previous:	From: Peter Eisentraut	Date: 2001-01-06 19:21:19
	Subject: Open documentation items