Re: locking - Mailing list pgsql-hackers

From Jan Vicherek
Subject Re: locking
Date
Msg-id Pine.LNX.3.96.980120231609.2939D-100000@ann.ied.com
Whole thread Raw
In response to locking  (Jan Vicherek <honza@ied.com>)
Responses Re: [QUESTIONS] Re: locking
Re: [HACKERS] Re: locking
List pgsql-hackers
  *Any* answers would be appreciated :

 I'll rephrase the original questions :

pg doesn't have "row-level locking" but has "table locking".
a result from a SELECT * FROM TESTTABLE; is a table.
I lock the table (which is result of a SELECT).

 Q : will this locking prevent update of the rows in TESTTABLE that have
been SELECTed ?

     Thanx,

          Jan

On Mon, 19 Jan 1998, Jan Vicherek wrote:

>    I'm trying to figgure out how does the locking work.
>
>   If I get a ``Result Table'' from a select with, say, only one row which
> comes from only one ``Schema Table'', and I lock the ``Result Table'',
> will it not prevent updates of the row in ``Schema Table'' that appeared
> in the ``Result Table'' ?

 -- Gospel of Jesus is the saving power of God for all who believe --
Jan Vicherek ## To some, nothing is impossible. ##  www.ied.com/~honza
    >>>    Free Software Union President  ...  www.fslu.org    <<<
Interactive Electronic Design Inc.    -#-    PGP: finger honza@ied.com


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