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Re: Suggestions on message transfer among backends - Mailing list pgsql-hackers

From Andy Fan
Subject Re: Suggestions on message transfer among backends
Date
Msg-id CAKU4AWqhZn1v5CR85J74AAVXnTijWTzy6y-3pbYxqmpL5ETEig@mail.gmail.com
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In response to Suggestions on message transfer among backends  (Andy Fan <zhihui.fan1213@gmail.com>)
Responses Re: Suggestions on message transfer among backends
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notes on the shared hash map:   it needs multi writers and multi readers. 

On Mon, Mar 11, 2019 at 9:36 PM Andy Fan <zhihui.fan1213@gmail.com> wrote:
Hi:
  I need some function which requires some message exchange among different back-ends （connections).
specially I need a shared hash map and a message queue.  

Message queue:  it should be many writers,  1 reader.   Looks POSIX message queue should be OK, but postgre doesn't use it.  is there any equivalent in PG?  

shared hash map:  the number of items can be fixed and the value can be fixed as well. 

any keywords or explanation will be extremely helpful. 

Thanks

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