Describe Db2's index for a primary key as unique - #7479
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Db2MetadataProviderclassifies an index as unique only when itsUNIQUERULEis'U'. A primary key's index is unique too, and Db2 reports it withUNIQUERULE = 'P', so the check should be "anything but'D'" ('D'is the only rule that allows duplicates).It's a no-op change on 4.5.x: the introspection query excludes primary-key indexes, so no
'P'row ever reaches the mapping:dbal/src/Platforms/Db2/Db2MetadataProvider.php
Line 266 in 4f2378d
This will become an issue if schema introspection starts reporting underlying primary key indexes (currently prototyped in #7477). Without this change, the introspection will report the primary key indexes as regular.