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From:PeterWR Date:March 30 2004 7:54pm
Subject:Re: Drop all keys / indexes on a table?
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Hi,

Take at look at CHECK TABEL - as far as I remember, the CHECK TABLE EXTENDED
will do a re-index (check index), otherwise some of the other OPTIMIZE, etc.
can help on this.

Take a look in the exellent manual.

Best regards
Peter


----- Original Message ----- 
From: "Daevid Vincent" <daevid@stripped>
To: <mysql@stripped>
Sent: Tuesday, March 30, 2004 9:44 PM
Subject: RE: Drop all keys / indexes on a table?


> Ugh. I was afraid you were going to say that...
> Seriously, there's no way to just 'wildcard' ALL indexes, someone should
add
> that as a feature request. We're using 4.0.17 BTW.
>
> What happens if I list out all the indexes that there _could_ be in one
> ALTER line like that, and one of the indexes doesn't actually exist? Will
> the whole ALTER fail?
>
> Here's the situation, I wrote a script that runs recursively through a
> directory and applies all the .sql files it finds (in alpha order). This
> script runs as part of a client update, and doesn't necessarily run the
same
> number of times for everyone. So, some clients may have extra indexes:
> foo_1, foo_2, foo_3, ... foo_15 etc. (the problem at hand), and other
> clients may just have: foo_1, foo_2, foo_3.
>
> > -----Original Message-----
> > From: Victoria Reznichenko [mailto:victoria.reznichenko@stripped]
> > Sent: Tuesday, March 30, 2004 12:48 AM
> > To: mysql@stripped
> > Subject: Re: Drop all keys / indexes on a table?
> >
> > "Daevid Vincent" <daevid@stripped> wrote:
> > > It has come to my attention that we have maxed out our keys
> > due to a stupid
> > > update script bug. It seemst that we've not been explicitly
> > naming our keys
> > > and therefore mysql tried to be helpful and adds a new key
> > each time!
> > > *sigh*.
> > >
> > > Is there a SQL command to DROP ALL keys on a table, so I
> > can just ALTER it
> > > and add them specifically again?
> > >
> >
> > Specify several DROP INDEX clause in the single ALTER TABLE statement:
> > ALTER TABLE table_name DROP INDEX index_name1, DROP
> > INDEX index_name2, .. , DROP INDEX index_nameN;
> >
> >
> > -- 
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> >   /  |/  /_ __/ __/ __ \/ /    Victoria Reznichenko
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> > /_/  /_/\_, /___/\___\_\___/   MySQL AB / Ensita.net
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> >
> >
> >
> >
> >
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Thread
Drop all keys / indexes on a table?Daevid Vincent29 Mar
  • Re: Drop all keys / indexes on a table?Victoria Reznichenko30 Mar
    • RE: Drop all keys / indexes on a table?Daevid Vincent30 Mar
      • Re: Drop all keys / indexes on a table?PeterWR30 Mar
        • RE: Drop all keys / indexes on a table?Daevid Vincent30 Mar
          • Re: Drop all keys / indexes on a table?John Thorpe30 Mar
            • RE: Drop all keys / indexes on a table?Daevid Vincent31 Mar
      • using result as a fieldMojtaba Faridzad30 Mar
      • RE: Drop all keys / indexes on a table?Daevid Vincent30 Mar