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