Author: mjevans Date: Wed Mar 10 07:55:27 2010 New Revision: 13839 Modified: dbi/trunk/Changes dbi/trunk/DBI.pm
Log: Document drivers which do not support column_info Modified: dbi/trunk/Changes ============================================================================== --- dbi/trunk/Changes (original) +++ dbi/trunk/Changes Wed Mar 10 07:55:27 2010 @@ -38,7 +38,8 @@ Documented the Callbacks attribute thanks to David E. Wheeler. Corrected the Timeout examples as per rt 50621 (Martin J. Evans). Removed some internal broken links in the pod (Martin J. Evans) - + Added Note to column_info for drivers which do not + support it (Martin J. Evans) Updated dbipport.h to Devel::PPPort 3.19 (H.Merijn Brand) =head2 Changes in DBI 1.609 (svn r12816) 8th June 2009 Modified: dbi/trunk/DBI.pm ============================================================================== --- dbi/trunk/DBI.pm (original) +++ dbi/trunk/DBI.pm Wed Mar 10 07:55:27 2010 @@ -4876,6 +4876,11 @@ driver doesn't support one or more of them then you may get back more than you asked for and can do the filtering yourself. +Note: If your driver does not support column_info an undef is +returned. This is distinct from asking for something which does not +exist in a driver which supports column_info as a valid statement +handle to an empty result-set will be returned in this case. + If the arguments don't match any tables then you'll still get a statement handle, it'll just return no rows.
