Re: Libpq support to connect to standby server as priority

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От Jing Wang
Тема Re: Libpq support to connect to standby server as priority
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Msg-id CAF3+xMJnijOmLb8mhwjY7x0tWXGQDdRtSHKe7sN47FT_0T-f_g@mail.gmail.com
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Ответ на Libpq support to connect to standby server as priority  (Jing Wang <jingwangian@gmail.com>)
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Hi,

Enclosed please find the patch that the libpq support 'prefer-read' feature. 

If the target_session_attrs is set to 'prefer-read', the patch will connect to server and send 'SHOW transaction_read_only' query to check the server being 'read-only' or not. If server is 'read-write' then it will try next server address. If all connections for 'read-only' get failed it will try to connect to the master server.


--
Regards,
Jing Wang
Fujitsu Australia
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