CreateQuery t1__fuzz_8 (children 3)
 Identifier t1__fuzz_8
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration x (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType UInt32
   ColumnDeclaration str (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType Int16
 Storage definition (children 1)
  Function Memory
