Re: [HACKERS] SQL92

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: jose(at)sferacarta(dot)com (Jose' Soares)
Cc: djackson(at)cpsgroup(dot)com, lockhart(at)alumni(dot)caltech(dot)edu, pgsql-hackers(at)hub(dot)org
Subject: Re: [HACKERS] SQL92
Date: 1998-10-02 01:58:09
Message-ID: 199810020158.VAA22885@candle.pha.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

> The SQL92 LIKE:
>
> character-string-expression [NOT] LIKE pattern [ESCAPE
> 'escape-char']
>
> allows only the special characters % and _
>
> You need The SQL3 SIMILAR
>
> character-string-expression [NOT] SIMILAR TO pattern [ESCAPE
> 'escape-char']
>
> in this case pattern can involve additional special characters, not just
> % and _ as in LIKE, but every regular expression or "[character_set]"
> like you said. (Refer to "A Guide to SQL Standard 4th edition
> Date-Rarwen, page 505).
>
> Jose'
>
>

TODO item changed to:

* add SIMILAR to allow character classes, 'pg_[a-c]%'

--
Bruce Momjian | http://www.op.net/~candle
maillist(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
+ Christ can be your backup. | Drexel Hill, Pennsylvania 19026

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Bruce Momjian 1998-10-02 02:01:41 Re: [HACKERS] initdb question
Previous Message Bruce Momjian 1998-10-02 01:48:59 Re: [HACKERS] SQL92