CreateQuery lc_fix_str_0 (children 3)
 Identifier lc_fix_str_0
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration str (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType FixedString (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
 Storage definition (children 1)
  Function Memory