Tom Lane 09d3670df3 Change the relation_open protocol so that we obtain lock on a relation ... (table or index) before trying to open its relcache entry. This fixes race conditions in which someone else commits a change to the relation's catalog entries while we are in process of doing relcache load. Problems of that ilk have been reported sporadically for years, but it was not really practical to fix until recently --- for instance, the recent addition of WAL-log support for in-place updates helped. Along the way, remove pg_am.amconcurrent: all AMs are now expected to support concurrent update.		2006-07-31 20:09:10 +00:00
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Makefile	$Header: -> $PostgreSQL Changes ...	2003-11-29 19:52:15 +00:00
genam.c	Change the relation_open protocol so that we obtain lock on a relation	2006-07-31 20:09:10 +00:00
indexam.c	Change the relation_open protocol so that we obtain lock on a relation	2006-07-31 20:09:10 +00:00