Re: JDBC String to Bool spec

Maybe we should support postgres conversion (
https://www.postgresql.org/docs/current/static/datatype-boolean.html)
similar to what is already on PgPreparedStatement and setObject.

Can you please open an issue on github
<https://github.com/pgjdbc/pgjdbc/issues> to keep track of it?

Jorge Solórzano
me.jorsol.com

On Sun, Jan 15, 2017 at 5:54 PM, Kevin Wooten <kdubb(at)me(dot)com> wrote:

> It’s not my use case. It seems to me the driver should either support
> JDBC/Java conversions (true/yes => true, everything else false) or Postgres
> conversions (true/on/t/1 => true, false/off/f/0 => false, everything else
> error).
>
> Currently it seems theres a hodgepodge of supported conversion not really
> defined by the spec or server support; unless they are defined somewhere
> that I’m not aware off.
>
> On Jan 15, 2017, at 4:42 PM, Dave Cramer <pg(at)fastcrypt(dot)com> wrote:
>
>
> On 15 January 2017 at 18:33, Kevin Wooten <kdubb(at)me(dot)com> wrote:
>
>> Actually this table isn’t what I’m looking for. Related to example I
>> provided below, there doesn’t seem to be a list of “acceptable values” when
>> converting a string to a boolean; only that “getBoolean” must support
>> conversion from VARCHAR/CHAR.
>>
>>
>>
> Ya I thought you were looking for something else. Not sure how you deal
> with your exact use case
>
>
>
> Dave Cramer
>
> davec(at)postgresintl(dot)com
> www.postgresintl.com
>
>
>> On Jan 15, 2017, at 4:29 PM, Kevin Wooten <kdubb(at)me(dot)com> wrote:
>>
>> Thanks… is there a reason those tables were dropped from the 4.2 spec PDF?
>>
>> On Jan 15, 2017, at 4:26 PM, Dave Cramer <pg(at)fastcrypt(dot)com> wrote:
>>
>> http://download.oracle.com/otn-pub/jcp/jdbc-4_1-mrel-spec/
>> jdbc4.1-fr-spec.pdf?AuthParam=1484522754_78e98a772cf0c1f6c7f18ab76e324ff5
>>
>>
>> Has a table on page 211 if that is what you are looking for
>>
>> Dave Cramer
>>
>> davec(at)postgresintl(dot)com
>> www.postgresintl.com
>>
>> On 15 January 2017 at 18:20, Kevin Wooten <kdubb(at)me(dot)com> wrote:
>>
>>> Does anybody know where in the specification it details the
>>> required/acceptable conversions from string values to boolean? I cannot
>>> seem to find it in the PDF for 4.2.
>>>
>>> I am curious about some of the conversions that are done. For example,
>>> calling “ResultSet.getBoolean” on a text/varchar column with the value
>>> “1.0”. This conversion succeeds because the driver (both pgjdbc & ng)
>>> fallback to decoding the column as a double then converting that by testing
>>> it “== 1”; which seems valid but questionable since “!= 0” would also be
>>> valid, but vastly different.
>>>
>>> This is not allowed by Postgres (e.g. “SELECT “1.0”::bool;” results in
>>> an error) and I cannot find anything in JDBC as of yet.
>>>
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>>
>>
>>
>>
>
>