CreateQuery sample_final (children 3)
 Identifier sample_final
 Columns definition (children 1)
  ExpressionList (children 5)
   ColumnDeclaration CounterID (children 1)
    DataType UInt32
   ColumnDeclaration EventDate (children 1)
    DataType Date
   ColumnDeclaration EventTime (children 1)
    DataType DateTime
   ColumnDeclaration UserID (children 1)
    DataType UInt64
   ColumnDeclaration Sign (children 1)
    DataType Int8
 Storage definition (children 4)
  Function CollapsingMergeTree (children 1)
   ExpressionList (children 1)
    Identifier Sign
  Function tuple (children 1)
   ExpressionList (children 4)
    Identifier CounterID
    Identifier EventDate
    Function intHash32 (children 1)
     ExpressionList (children 1)
      Identifier UserID
    Identifier EventTime
  Function intHash32 (children 1)
   ExpressionList (children 1)
    Identifier UserID
  Set