purgeLogId on a PurgeInterval groups all the stabilization checks from a single purge event together. A single PurgeLog typically has 3 to 10 PurgeIntervals recorded at regular time or volume intervals throughout the purge. The sequence of PurgeIntervals sharing the same purgeLogId shows the parameter trend that justifies the stabilized status recorded on the parent PurgeLog.
piper
Purge Interval Log
`purgeLogId` on a PurgeInterval is the foreign key connecting this individual parameter check to the parent PurgeLog.
