57 lines
2.0 KiB
Plaintext
57 lines
2.0 KiB
Plaintext
WITH range_alarm_events AS (
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SELECT e.*,
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/* Get the last time this event was active within the given time range*/
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(
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/* Search for the clear event (if exists) for the outer query's active event */
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SELECT MIN(eventtime)
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FROM alarm_events e2
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WHERE e2.eventid = e.eventid /* eventid is unique per alarm instance */
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AND e2.eventtime >= e.eventtime
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AND e2.eventtype = 1 /* Look only for the clear event */
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ORDER BY eventtime ASC
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LIMIT 1
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) AS endtime
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FROM alarm_events e
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/* The range for both start/end allows for index optimizations */
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WHERE
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/* Filter for Active events */
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eventtype = 0
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/* Filter priority */
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AND priority >= :priority
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/* Filter by tag */
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AND source LIKE CONCAT("prov:default:/tag:", REGEXP_REPLACE(:tagPath, "\\[.*\\]|\\/Graphics", ""), "%")
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ORDER BY eventtime DESC
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LIMIT 50
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), range_alarm_events2 AS (
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SELECT *,
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COALESCE(endtime, NOW()) AS endtime_est, /* Clamp to end of time range if clear event is after end time */
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TIMESTAMPDIFF(SECOND, eventtime, COALESCE(endtime, NOW())) AS duration
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FROM range_alarm_events
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)
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SELECT e.id,
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e.eventtime AS starttime, e.endtime,
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/* Translate duration to a string */
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CAST(SEC_TO_TIME(FLOOR(e.duration)) AS CHAR) AS duration,
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/* Retrieve data */
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ddevice.strvalue AS device,
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displaypath AS description,
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e.source,
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/* Translate priority to string */
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dclass.strvalue AS class,
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CASE
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WHEN e.priority=4 THEN "Critical"
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WHEN e.priority=3 THEN "High"
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WHEN e.priority=2 THEN "Medium"
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WHEN e.priority=1 THEN "Low"
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WHEN e.priority=0 THEN "Diagnostic"
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ELSE "N/A"
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END AS priority,
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/* Retrieve PLCTag */
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dtag.strvalue AS plctag
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FROM range_alarm_events2 e
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/* Lookup PLCTag */
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JOIN alarm_event_data dtag ON e.id = dtag.id AND dtag.propname = "PLCTag"
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/* Lookup Device */
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JOIN alarm_event_data ddevice ON e.id = ddevice.id AND ddevice.propname = "Device"
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/* Lookup Class */
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JOIN alarm_event_data dclass ON e.id = dclass.id AND dclass.propname = "Class"; |