CreateQuery t__fuzz_307 (children 3)
 Identifier t__fuzz_307
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration k1 (children 1)
    DataType DateTime
   ColumnDeclaration k2 (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType Nullable (children 1)
       ExpressionList (children 1)
        DataType Float64
   ColumnDeclaration v (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType UInt32
 Storage definition (children 3)
  Function ReplacingMergeTree
  Function tuple (children 1)
   ExpressionList (children 2)
    Identifier k1
    Identifier k2
  Set
