CreateQuery 01504_test (children 3)
 Identifier 01504_test
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration key (children 1)
    DataType Tuple (children 1)
     ExpressionList (children 2)
      DataType String
      DataType UInt32
   ColumnDeclaration value (children 1)
    DataType UInt64
 Storage definition (children 2)
  Function EmbeddedRocksDB
  Identifier key