From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
---|---|
To: | Vivek Khera <khera(at)kcilink(dot)com> |
Cc: | pgsql-general(at)postgresql(dot)org |
Subject: | Re: Re: mysql to Pgsql |
Date: | 2001-05-04 17:31:09 |
Message-ID: | 200105041731.f44HV9427795@candle.pha.pa.us |
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Thread: | |
Lists: | pgsql-general |
We really need those changes merged into the scripts for the next guy.
Ideally, I would like the two /contrib scripts merged to make a better one.
> >>>>> "BM" == Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
>
> BM> [ Charset ISO-8859-1 unsupported, converting... ]
> >> I think I heard about a script that would convert mysql dump files to Pgsql
> >> dumps. Can someone remind me where they are?
>
> BM> In 7.1 /contrib.
>
> I started with trying several scripts. All of them leave some mysql
> turds lying around after their "translation". I ended up doing it
> manually, and took some notes. Here's what I did:
>
> --cut here--
> change # comments to -- comments
>
> change "int(10)" to "integer"
>
> change "integer unsigned NOT NULL auto_increment" fields to type
> "SERIAL PRIMARY KEY"
>
> change "integer unsigned" to "integer check(colname >= 0)"
>
> change "mediumtext" => "text"
>
> remove "Type = XXX" table option at end of create statements.
>
> change "timestamp(14)" => "timestamp default 'NOW()'" .. probably need
> trigger to update this kind of timestamp on every update as well.
>
> change "datetime" => "timestamp"
>
> move "KEY" indexes after column create with CREATE INDEX
>
> change "enum" fields to "varchar(X) check (fn in ('...','...'))"
>
> change "set" fields to some type of text field, and make app convert
> to/from comma separated string of values.
>
> change "tinyint(N)" to "smallint"
>
> change "UNIQUE KEY name" to "UNIQUE"
>
> delete "binary" attributes to char fields.
>
> delete any "default NULL" as they are redundant.
>
> "text NOT NULL" needs to have "default ''" for same behavior as in mysql.
>
>
> --
> =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
> Vivek Khera, Ph.D. Khera Communications, Inc.
> Internet: khera(at)kciLink(dot)com Rockville, MD +1-240-453-8497
> AIM: vivekkhera Y!: vivek_khera http://www.khera.org/~vivek/
>
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--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
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