On 09/11/2012 09:55 AM, AI Rumman wrote:
I added the excel file for locks data.
I was surprised to see that while I was updating a single column value
for all records in a tables, all indexes are locked by the server.
Any ALTER TABLE command locks the whole table in ACCESS EXCLUSIVE mode,
indexes included. See the description of ACCESS EXCLUSIVE lock at
<http://www.postgresql.org/docs/current/static/explicit-locking.html>
cheers
andrew
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