CreateQuery t1__fuzz_17 (children 3)
 Identifier t1__fuzz_17
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration a (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType UInt8
   ColumnDeclaration b (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType UInt256
 Storage definition (children 1)
  Function Memory
