Re: [HACKERS] char_length()? - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [HACKERS] char_length()?
Date
Msg-id 4741.948600977@sss.pgh.pa.us
Whole thread Raw
In response to char_length()?  (Tatsuo Ishii <t-ishii@sra.co.jp>)
Responses Re: [HACKERS] char_length()?
List pgsql-hackers
Tatsuo Ishii <t-ishii@sra.co.jp> writes:
> char_length()/octet_length() for char() datatype returns a character
> length *except* the trailing blanks. Is this what the standard
> expects? Oracle's length() returns 3 in the case below.

AFAICT Oracle is right --- the spec just says
             i) If the data type of S is a character data type, then the                result is the number of
charactersin the value of S.
 

and I can't see anything there about stripping pad characters.  You
could ask for length(trim(S)) if you don't want to count blanks.
        regards, tom lane


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