Re: [GENERAL] Length of field names.

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От Bruce Momjian
Тема Re: [GENERAL] Length of field names.
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Msg-id 199807131745.NAA19947@candle.pha.pa.us
обсуждение исходный текст
Ответ на [GENERAL] Length of field names.  (Stuart Rison <stuart@NOJUNK_ludwig.ucl.ac.uk>)
Ответы Re: [GENERAL] Length of field names.  (Stuart Rison <stuart@NOJUNK_ludwig.ucl.ac.uk>)
Список pgsql-general
> So my guess is that with the original name, malignant_pathologies_invasive
> and the primary key created by it (normally
> malignant_pathologies_invasive_pkey) end up having the same name because of
> the cut-off?
>
> Does this seem right?  If so, what is the max length of field names and can
> anyone suggest a way around this problem (obviously I could just give the
> tables shorter names but they are computer generated by a Perl script and
> if at all possible, I'd like to keep the filed and table names in this long
> format).

max length is 31.

> PS.  For those that have been following the \dt <regex> discussion, in this
> case I would have like a '\d \dt' kind of query to get PG to give me the
> type and length of the Field field (which is more of an SQL query type of
> question so probably would have required SQL access to catalog tables as
> Herouth suggested).

Huh?  Doesn't \d \dt do that if you supply the table name?

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