BUG #12242: No error - if there is no comma seperator

Started by Nonameover 11 years ago2 messagesbugs
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#1Noname
omkar1103@gmail.com

The following bug has been logged on the website:

Bug reference: 12242
Logged by: Onkar Gaonkar
Email address: omkar1103@gmail.com
PostgreSQL version: 9.3.3
Operating system: Windows
Description:

Below script does not throw error
=======================================
SELECT
claim_status,
claim_key
FROM tbl_claim
WHERE claim_key IN
(
'1140799265'
'2129945595'
)
=======================================

Throws Error
=======================================
SELECT
claim_status,
claim_key
FROM tbl_claim
WHERE claim_key IN
(
'1140799265' '2129945595'
)

ERROR: syntax error at or near "'2129945595'"
LINE 7: '1140799265' '2129945595'
^
********** Error **********
ERROR: syntax error at or near "'2129945595'"
SQL state: 42601
Character: 113
=======================================

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#2Tom Lane
tgl@sss.pgh.pa.us
In reply to: Noname (#1)
Re: BUG #12242: No error - if there is no comma seperator

omkar1103@gmail.com writes:

Below script does not throw error
=======================================
SELECT
claim_status,
claim_key
FROM tbl_claim
WHERE claim_key IN
(
'1140799265'
'2129945595'
)

Throws Error
=======================================
SELECT
claim_status,
claim_key
FROM tbl_claim
WHERE claim_key IN
(
'1140799265' '2129945595'
)

Yup. This is not only not a bug, it's behavior required by the SQL
standard. Literal strings are concatenated automatically as long as
they're separated by a newline. This is mentioned in the PG docs
under 4.1.2.1. String Constants:
http://www.postgresql.org/docs/9.3/static/sql-syntax-lexical.html#SQL-SYNTAX-CONSTANTS

(This is one of many decisions I'm sure the SQL committee would like
to have back, but we're pretty much stuck with it now.)

regards, tom lane

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