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How are locks managed in PG? - Mailing list pgsql-general

From Thomas Kellerer
Subject How are locks managed in PG?
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Msg-id gifm7k$m1j$1@ger.gmane.org
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Hi,

I have a question on how PG manages lock information.

Does this go through a central "lock manager" that manages the information which row is locked by which transactioni.
Oris the lock information stored directly within the data blocks (so no central "data structure" would be needed) 

Thanks
Thomas

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