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Time series: - return column named time_sec (UTC in seconds), use UNIX_TIMESTAMP(column) - 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) -> UNIX_TIMESTAMP(column) as time_sec - $__timeFilter(column) -> UNIX_TIMESTAMP(time_date_time) ≥ from AND UNIX_TIMESTAMP(time_date_time) ≤ 1492750877
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