Inconsistencies in the behavior of CHR() function in PG.

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От Prabhat Sahu
Тема Inconsistencies in the behavior of CHR() function in PG.
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Msg-id CANEvxPqaQqojU+XyKrfiwt729P+ZikjYsfn=hQhEzcTKm5iWoQ@mail.gmail.com
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Ответы Re: Inconsistencies in the behavior of CHR() function in PG.
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Hi All,

While trying to explore on CHR() function in PG, 
I found that few of the ASCII values are returning hex number values(like '\x08', '\x0B') 
and few are executing within SQL (i.e. chr(9) => Horizontal tab,  chr(10) => Line feed) as below example.

postgres=# select 1|| chr(8)|| 2 || chr(9)||3 || chr(10)||4 || chr(11)||5 || chr(12)||6 || chr(13)||7  as col1;
      col1      
----------------
 1\x082  3     +
 4\x0B5\x0C6\r7
(1 row)

My question here is, why these inconsistencies in the behavior of CHR() function? 

--


With Regards,

Prabhat Kumar Sahu
Skype ID: prabhat.sahu1984
EnterpriseDB Corporation

The Postgres Database Company

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