Re: Case-sensitive problem in AS clause?

> -----Original Message-----
> From: pgsql-jdbc-owner@postgresql.org [mailto:pgsql-jdbc-
> owner@postgresql.org] On Behalf Of dmp
> Sent: Monday, July 16, 2012 12:05 PM
> To: Laurent Mazuel; PostgreSQL JDBC
> Subject: Re: [JDBC] Case-sensitive problem in AS clause?
>
> Again as the as identifier is not quoting it default to the default
behavior for
> assignment. As far as the isCaseSensitive() it is found that the method in
the
> Pgjdbc, org/postgresql/jdbc2/AbstractJdbc2ResultSetMetaData.java is:
>
> /*
>       * Does a column's case matter? ASSUMPTION: Any field that is
>       * not obviously case insensitive is assumed to be case sensitive
>       *
>
> >
> > Then, the column name is changed from StudentId to studentid, but the
> > "isCaseSensitive" flag is "true". I think it is not correct, since it
> > is impossible from now, when a user ask for the StudentId column to
> > retrieve it from a resultset. The "isCaseSensitive" don't authorize to
> > accept the string StudentId as a valid column name for the studentid
> > column in the ResultSet.
>
> Recommed you quote AS "StudentID" to get the behavior you desire.
>
> danap.

Does the "isCaseSensitive(int)" function return whether the "value" stored
in the column is case-sensitive or does it return whether the "name" of the
column is case-sensitive?

The OP is using it to determine whether the "name" is case-sensitive - which
it is always.

My assumption is that it would indicate whether the "value" is
case-sensitive - which is also true because varchar/text is case-sensitive.

The fact that different fields may or may not be case-sensitive supports
this since the "case-sensitive" property of a column "name" should be
constant throughout the database/product.

David J.