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Re: Recent updates

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: lockhart(at)alumnus(dot)caltech(dot)edu (Thomas G(dot) Lockhart)
Cc: hackers(at)postgreSQL(dot)org
Subject: Re: Recent updates
Date: 1998-07-15 15:32:19
Message-ID: 199807151532.LAA05331@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
> I decided to use the int4 sorting routines when the type is
> "InvalidOid", the type apparently assigned to null constants. The sort
> routines probably don't get called anyway since everything is a null,
> and if they did the "pass by value" int4 routines are probably safest.

Good.  That was my suspicion on how to do it.

What does 'select null order by 1;' do now?

I have renamed the append struct names just now as part of an EXPLAIN
fix.  Should not affect you.

> 
> Will continue testing, and need to look into this still:
> 
> postgres=> select 1 union select null union all select null;
> Backend message type 0x44 arrived while idle



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Next:From: Thomas G. LockhartDate: 1998-07-15 16:26:29
Subject: Re: Recent updates
Previous:From: Bruce MomjianDate: 1998-07-15 15:10:29
Subject: Re: [HACKERS] EXPLAIN doesn't explain operations on inheritance trees

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