Re: locking

Jan Vicherek <honza@ied.com>

From: Jan Vicherek <honza@ied.com>
To: pgsql-hackers@postgreSQL.org
Cc: pgsql-questions@postgreSQL.org
Date: 1998-01-21T04:19:48Z
Lists: 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'' ? 

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