On 13/11/17 17:43, James Cloos wrote:
Is there anything in a db handle or statement handle one use to know
whether the running instance of DBD::MySQL will return integer columns
as IV?
I'm adding some code to a layer atop DBI which will force IV (via +=0),
but want to avoid doing that were it is not required.
The particular code path serializes the returned rows via JSON::XS,
hense the need.
-JimC
See
http://search.cpan.org/~timb/DBI-1.637/DBI.pm#sql_type_cast
http://search.cpan.org/~mjevans/DBD-ODBC-1.56/ODBC.pm#DiscardString
http://search.cpan.org/~mjevans/DBD-ODBC-1.56/ODBC.pm#StrictlyTyped
These attributes are implemented in DBD::Oracle and DBD::ODBC and allow the
caller of bind_param to stipulate it wants an integer instead of a string.
They were originally implemented by me (with Tim's help) when I was retrieving
result-sets which I wanted to convert to JSON. JSON treats numbers and string
differently and I required numbers to be numbers and not strings.
There is of course, the type argument to bind_param as well.
Best of luck.
Martin
