Hot standby, freezing - Mailing list pgsql-hackers

From Heikki Linnakangas
Subject Hot standby, freezing
Date
Msg-id [email protected]
Whole thread Raw
Responses Re: Hot standby, freezing
List pgsql-hackers
While reading through the patch for what must be the 100th time by now,
it occurred to me that this comment in heap_xlog_freeze:

+       /*
+        * Freezing tuples does not require conflict processing
+        */

is plain wrong. In the master, we can freeze the xmin of a tuple that's
not yet visible to all read-only transactions in the standby. We do need
conflict processing there.

--  Heikki Linnakangas EnterpriseDB   http://www.enterprisedb.com


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