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Re: Why doesn't EOF sort our PK problems itself ?
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Re: Why doesn't EOF sort our PK problems itself ?


  • Subject: Re: Why doesn't EOF sort our PK problems itself ?
  • From: Mike Schrag <email@hidden>
  • Date: Wed, 23 Jan 2008 16:46:45 -0500

Do I think this is something that ought to go into EOF proper? Not really. But the original poster was looking for a way to automatically fix his PK sequences and so I'm giving him the outline of how he could do this. He may decide (and I would if I were him) that ultimately it's cheaper to remind yourself to update the PK sequence if you make changes outside of EOF.

He can simply add a trigger on insert. So could EOF, btw...
Yeah, I was thinking about this, too, but I wonder if performance would suck ... For non-EOF inserts, it wouldn't be any worse than an EOF insert, but for an EOF insert you'd hit it twice -- once to get the PK originally, and a second time by the insert trigger. I suppose you only really take a very small hit against the pk table, which is tiny, and you only have to even update it if the table pk > eo_pk_table's value, so most of the time you'd only get one extra select and not an update. Given that this could save you from a world of annoying out-of-syncness, it might actually be worth it for a mysql person to try to write. Is MySQL the only db that has to use eo_pk_table?

ms

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  • Follow-Ups:
    • Re: Why doesn't EOF sort our PK problems itself ?
      • From: Simon McLean <email@hidden>
    • Re: Why doesn't EOF sort our PK problems itself ?
      • From: Anjo Krank <email@hidden>
References: 
 >Why doesn't EOF sort our PK problems itself ? (From: Simon McLean <email@hidden>)
 >Re: Why doesn't EOF sort our PK problems itself ? (From: Mike Schrag <email@hidden>)
 >Re: Why doesn't EOF sort our PK problems itself ? (From: David Elliott <email@hidden>)
 >Re: Why doesn't EOF sort our PK problems itself ? (From: Mike Schrag <email@hidden>)
 >Re: Why doesn't EOF sort our PK problems itself ? (From: David Elliott <email@hidden>)
 >Re: Why doesn't EOF sort our PK problems itself ? (From: Anjo Krank <email@hidden>)

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