Merge pull request #8 from patterninc/using_fetch_for_tables

Using fetch for tables in odbc adapter

lib/odbc_adapter/schema_statements.rb

@@ -13,7 +13,7 @@ def native_database_types
     # current connection.
     def tables(_name = nil)
       stmt   = @connection.tables
-      result = stmt.fetch_all || []
+      result = stmt.fetch || []
       stmt.drop
 
       result.each_with_object([]) do |row, table_names|