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[PATCH] Add min() and max() aggregate functions for xid8 - Mailing list pgsql-hackers

From Ken Kato
Subject [PATCH] Add min() and max() aggregate functions for xid8
Date
Msg-id 47d77b18c44f87f8222c4c7a3e2dee6b@oss.nttdata.com
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Responses Re: [PATCH] Add min() and max() aggregate functions for xid8  (Fujii Masao <masao.fujii@oss.nttdata.com>)
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Hi hackers,

Unlike xid, xid8 increases monotonically and cannot be reused.
This trait makes it possible to support min() and max() aggregate 
functions for xid8.
I thought they would be useful for monitoring.

So I made a patch for this.

Best wishes,

-- 
Ken Kato
Advanced Computing Technology Center
Research and Development Headquarters
NTT DATA CORPORATION
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