Re: performance of insert/delete/update - Mailing list pgsql-performance

From Tim Gardner
Subject Re: performance of insert/delete/update
Date
Msg-id p05111b10ba0872da9242@[192.168.1.4]
Whole thread Raw
In response to Re: performance of insert/delete/update  ("scott.marlowe" <scott.marlowe@ihs.com>)
Responses Re: performance of insert/delete/update  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-performance
>With Postgresql's implementation of MVCC, all your data are inserted in
>real time, with a transaction date that makes the other clients ignore
>them (mostly, other read committed transactions may or may not see them.)
>
>If there are indexes to update, they are updated in the same "invisible
>until committed" way.
>
>All this means that your inserts don't block anyone else's reads as well.
>
>This means that when you commit, all postgresql does is make them visible.

scott,

Exactly the kind of explanation/understanding I was hoping for!

Thank you!

Tim

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