CreateQuery tab (children 3)
 Identifier tab
 Columns definition (children 1)
  ExpressionList (children 1)
   ColumnDeclaration c0 (children 2)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType Nullable (children 1)
       ExpressionList (children 1)
        DataType Time
    Function CODEC (children 1)
     ExpressionList (children 1)
      Function DoubleDelta (children 1)
       ExpressionList (children 1)
        Literal UInt64_2
 Storage definition (children 2)
  Function MergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList
