From: | "j(dot)random(dot)programmer" <javadesigner(at)yahoo(dot)com> |
---|---|
To: | Oliver Jowett <oliver(at)opencloud(dot)com> |
Cc: | pgsql-jdbc(at)postgresql(dot)org |
Subject: | Re: Bug: Driver(8.2dev-500.jdbc3) does not handle boolean->BIT correctly |
Date: | 2005-12-19 23:41:36 |
Message-ID: | 20051219234136.59714.qmail@web32012.mail.mud.yahoo.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-jdbc |
> JDBC's "BIT" is actually a boolean type. In
> JDBC3, BIT and BOOLEAN are effectively
> equivalent.
Hmm.
> The backend's "bit" type is actually a bitstring
> that does not have a
> direct equivalent in JDBC.
Aha !
So postgres really has a BITSTRING which is
conceptually different from a BIT type ? (since
BIT is also used instead of BITSTRING, you
can see why there is bound to be confusion).
Anywho, in the JDBC driver, why not convert
java booleans as follows:
true -> '1'
false -> '0'
and store that in the BIT column ?
While retrieving, do the reverse conversion.
Of course, if someone has the following
in the BIT column
'1001010'
then:
a) allow the entire value to be retrieved as a String
(getString...)
b) If there are any 1's present, return true
is retrieving it as boolean, false if all 0's.
Best,
-j
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