[gdal-dev] Unique Layer Names (FGDB)
pramsey at cleverelephant.ca
Fri May 6 19:17:26 EDT 2011
So, the FGDB driver right now flattens out the GDB hierarchy a little
(as far as I can tell there is not *too* much to flatted out) which
could maybe (?) result in duplicate layer names... I opened up
Michaels test database and printed out the layer names,
Some of those are Tables and the others are Feature Classes stored
within a Feature Dataset. I'm guessing that there is a unique name
enforcement mechanism within particular levels of the FGDB, but not
sure what would happen if we had something like this:
Tables: george, ringo
Feature Classes: john
Feature Datasets: paul (Feature Classes: john, ringo)
So the fully qualified names would all be unique...
but the layer names would not.
A couple things could happen: we could mangle the fully-qualified
names so they remain fully qualified in their OGR form (paul_john,
paul_ringo) or we could test and see if it's even possible to create
an FGDB that has non-unique leaf node names.
More information about the gdal-dev