Обсуждение: Newb question - PostgreSQL ODBC Driver for Teiid

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Newb question - PostgreSQL ODBC Driver for Teiid

От
"Conover, Paul W"
Дата:

Hello,

 

I have a Virtual database connection to Teiid using PostgreSQL ODBC driver 8.04.02.00. When running my SQL queries everything complets successfully, but the Column Names are all coming back lower case. I did quite a bit of research on this and am finding that if the alias is in Double Quotes it should be case-insensitive, but this is not what is happening. Is there a setting in the configuration for this? I have gone through all the setting and did not see anything specific to case-insensitive.

 

Thank you,

 

Paul Conover

Senior Application Analyst | IT Warehouse Development

Argus Health Systems, Inc. |1300 Washington Street, Kansas City, MO 64105

Phone: 816.435.2492 Email: paul.conover@argushealth.com

cid:image001.png@01CDB77C.874F20B0

 

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Вложения

Re: Newb question - PostgreSQL ODBC Driver for Teiid

От
Adrian Klaver
Дата:
On 10/16/2014 06:56 AM, Conover, Paul W wrote:
> Hello,
>
> I have a Virtual database connection to Teiid using PostgreSQL ODBC
> driver 8.04.02.00. When running my SQL queries everything complets
> successfully, but the Column Names are all coming back lower case. I did
> quite a bit of research on this and am finding that if the alias is in
> Double Quotes it should be case-insensitive, but this is not what is
> happening. Is there a setting in the configuration for this? I have gone
> through all the setting and did not see anything specific to
> case-insensitive.

If I am following you, then you have this backwards.

See:

http://www.postgresql.org/docs/9.3/static/sql-syntax-lexical.html

Quoting an identifier also makes it case-sensitive, whereas unquoted
names are always folded to lower case. For example, the identifiers FOO,
foo, and "foo" are considered the same by PostgreSQL, but "Foo" and
"FOO" are different from these three and each other. (The folding of
unquoted names to lower case in PostgreSQL is incompatible with the SQL
standard, which says that unquoted names should be folded to upper case.
Thus, foo should be equivalent to "FOO" not "foo" according to the
standard. If you want to write portable applications you are advised to
always quote a particular name or never quote it.)



>
> Thank you,
>
> *Paul Conover***
>


--
Adrian Klaver
adrian.klaver@aklaver.com