CreateQuery constraint_on_low_cardinality_type (children 3)
 Identifier constraint_on_low_cardinality_type
 Columns definition (children 2)
  ExpressionList (children 1)
   ColumnDeclaration id (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType UInt64
  ExpressionList (children 1)
   Constraint (children 1)
    Function equals (children 1)
     ExpressionList (children 2)
      Identifier id
      Literal UInt64_2
 Storage definition (children 1)
  Function TinyLog
