Re: VARCHAR vs TEXT

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От
Bruce Momjian
Тема
Re: VARCHAR vs TEXT
Дата
Msg-id
200110161256.f9GCu4P07329@candle.pha.pa.us
Ответ на
Re: VARCHAR vs TEXT (Vivek Khera)
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Дерево обсуждения
Re: VARCHAR vs TEXT Vivek Khera <khera@kcilink.com>
Re: VARCHAR vs TEXT Bruce Momjian <pgman@candle.pha.pa.us>
Re: VARCHAR vs TEXT Vivek Khera <khera@kcilink.com>
Re: VARCHAR vs TEXT Frank Bax <fbax@sympatico.ca>
Re: VARCHAR vs TEXT Bruce Momjian <pgman@candle.pha.pa.us>
Re: VARCHAR vs TEXT Peter Eisentraut <peter_e@gmx.net>
> >>>>> "BM" == Bruce Momjian  writes:
> 
> BM>     

CHAR() is best when storing strings that are usually the > BM> same length. VARCHAR() is best when storing variable-length strings, > BM> but you want to limit how long a string can be. TEXT is for strings > BM> of unlimited length, maximum 1 gigabyte. BYTEA is for storing > BM> binary data, particularly values that include NULL bytes.

> > Could you add the length limitation for TEXT to the reference manual? > I searched high and low for that limit, but never found it. Also, > what's the max VARCHAR() or CHAR() I can create? Is that also 1Gb? TEXT limit is 1GB, as shown on the 'limits' FAQ item. Is it worth mentioning here? CHAR()/VARCHAR() also 1GB limit. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026
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