RE: position(text,text) function

Поиск
Список
Период
Сортировка
От Jeff Eckermann
Тема RE: position(text,text) function
Дата
Msg-id 08CD1781F85AD4118E0800A0C9B8580B094B57@NEZU
обсуждение исходный текст
Ответ на position(text,text) function  (karl@tecc.co.uk (Karl Orbell))
Ответы Re: RE: position(text,text) function  ("Josh Berkus" <josh@agliodbs.com>)
Список pgsql-sql
You are confusing the syntax of two similar functions:
position ('substring' in 'string')
strpos ('string', 'substring').
I have a feeling that "position" actually calls "strpos", but I am guessing
on that.

> -----Original Message-----
> From:    karl@tecc.co.uk [SMTP:karl@tecc.co.uk]
> Sent:    Monday, July 23, 2001 9:27 AM
> To:    pgsql-sql@postgresql.org
> Subject:    position(text,text) function
> 
> I'm having trouble using the position function, it's a simple built-in
> function.
> 
> It returns the index of a substring within a main string.
> 
> But, I just can't get it to work, it always gives this silly parser error.
> I've tried it in a variety of ways with variables instead of constants
> casting 
> to text and using it in other contexts, (ie. in functions, not just in a 
> select).  What am I doing wrong?  Is this not the correct syntax for a two
> 
> argument function?
> 
> test=# select position('hello','el');
> ERROR:  parser: parse error at or near ","
> 
> 
> Karl Orbell.
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org


В списке pgsql-sql по дате отправления:

Предыдущее
От: Giles Lean
Дата:
Сообщение: Re: Full-text Indexing and Primary Keys
Следующее
От: "Chris Ruprecht"
Дата:
Сообщение: Re: Full-text Indexing and Primary Keys