CreateQuery t_resampled_timeseries_delta (children 3)
 Identifier t_resampled_timeseries_delta
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration step (children 1)
    DataType UInt32
   ColumnDeclaration metric_id (children 1)
    DataType UInt64
   ColumnDeclaration grid_timestamp (children 2)
    DataType DateTime (children 1)
     ExpressionList (children 1)
      Literal \'UTC\'
    Function CODEC (children 1)
     ExpressionList (children 2)
      Function DoubleDelta
      Function ZSTD
   ColumnDeclaration samples (children 1)
    DataType AggregateFunction (children 1)
     ExpressionList (children 3)
      Identifier timeSeriesLastTwoSamples
      DataType Int16
      DataType Float64
 Storage definition (children 2)
  Function AggregatingMergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList (children 3)
    Identifier step
    Identifier metric_id
    Identifier grid_timestamp
