CreateQuery range_dictionary_nullable_default_source_table (children 3)
 Identifier range_dictionary_nullable_default_source_table
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration key (children 1)
    DataType UInt64
   ColumnDeclaration value (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType UInt64
 Storage definition (children 1)
  Function TinyLog
