It's trying to read the metadata collections from the driver, using DbConnection.GetSchema(DbMetaDataCollectionNames.MetaDataCollections).
So the input string ("MetaDataCollections") is part of the .net framework, and the ADO driver should be implementing this method.
Historically, NpgSql had some problems fully implementing this part of ADO- I already have code to trap a "NotSupportedException" when trying to load the DataTypes. The version I use is working OK. What version are you using?
So the input string ("MetaDataCollections") is part of the .net framework, and the ADO driver should be implementing this method.
Historically, NpgSql had some problems fully implementing this part of ADO- I already have code to trap a "NotSupportedException" when trying to load the DataTypes. The version I use is working OK. What version are you using?