Time series:
- return column named time_sec (UTC in seconds), use the below to convert a datetime column to UTC unix time stamp:
        DATEDIFF(second, {d '1970-01-01'}, DATEADD(second, DATEDIFF(second,GETDATE(),GETUTCDATE()), column_name) )
- return column named value for the time point value
- return column named metric to represent the series name

Table:
- return any set of columns

Macros:
- $__time(column) -> DATEDIFF(second, {d '1970-01-01'}, DATEADD(second, DATEDIFF(second,GETDATE(),GETUTCDATE()), column) ) as time_sec
- $__timeFilter(column) ->  column > DATEADD(s, 1492750877+DATEDIFF(second,GETUTCDATE(),GETDATE()), '1970-01-01') AND column < DATEADD(s, 1492750877+DATEDIFF(second,GETUTCDATE(),GETDATE()), '1970-01-01')
- $__unixEpochFilter(column) ->  column > 1492750877 AND column < 1492750877

Or build your own conditionals using these macros which just return the values:
- $__timeFrom() ->  DATEADD(second, 1492750877+DATEDIFF(second,GETUTCDATE(),GETDATE()), '1970-01-01')
- $__timeTo() ->  DATEADD(second, 1492750877+DATEDIFF(second,GETUTCDATE(),GETDATE()), '1970-01-01')
- $__unixEpochFrom() ->  1492750877
- $__unixEpochTo() ->  1492750877