How To free resources used by large object Relations? - Mailing list pgsql-hackers

From Maurice Gittens
Subject How To free resources used by large object Relations?
Date
Msg-id 018001bd3e01$7651be80$fcf3b2c2@caleb..gits.nl
Whole thread Raw
Responses Re: [HACKERS] How To free resources used by large object Relations?  (Bruce Momjian <maillist@candle.pha.pa.us>)
List pgsql-hackers
Hi,

I've changed the large object memory managment strategy to ensure that
each large object has it's own memory context.
This way I can free all memory for a large object when I lo_close
is called for it's oid. This seems to work.

I've noticed that the heap_close function used to close the heap used
by a large object doesn't really do any thing. (It calls RelationClose
which decrements some reference count).

Somehow I have to free the relation from the cache in the following
situations:
1. In a transaction I must free the stuff when the transaction is
commited/aborted.
2. Otherwise it must happen when lo_close is called.

Is this right?

Can anyone point me in the right direction?

Thanks Maurice.



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