ago

This section contains reference documentation for the ago function.

Return time as epoch millis before the given period in ISO-8601 duration format (PnDTnHnMn.nS with days considered to be exactly 24 hours).

Examples:

• "PT20.345S" -- parses as "20.345 seconds"

• "PT15M" -- parses as "15 minutes" (where a minute is 60 seconds)

• "PT10H" -- parses as "10 hours" (where an hour is 3600 seconds)

• "P2D" -- parses as "2 days" (where a day is 24 hours or 86400 seconds)

• "P2DT3H4M" -- parses as "2 days, 3 hours and 4 minutes"

• "P-6H3M" -- parses as "-6 hours and +3 minutes"

• "-P6H3M" -- parses as "-6 hours and -3 minutes"

• "-P-6H+3M" -- parses as "+6 hours and -3 minutes"

Signature

ago()

Usage Examples

select ago('P1D') AS oneDayAgo
FROM ignoreMe

oneDayAgo
1639150454255

This function is typically used in the predicate to filter on timestamps for recent data. e.g. filter data on recent 1 day.

SELECT * 
FROM tableName
WHERE tsInMillis > ago('P1D')