I’m using pt-query-digest (v2.2.20) slowlog output format to filter out queries based on their timestamp, to run further digests on the filtered slowlog :
The point is my source log 11-21.slow.log has query cache hit info, for instance :
Time: 170109 12:08:43
User@Host: pidf_user[pidf_user] @ [10.226.13.132]
Thread_id: 32829731 Schema: webmbpidf [COLOR=#FF0000]QC_hit: No
Query_time: 0.015387 Lock_time: 0.000038 Rows_sent: 0 Rows_examined: 0
Whereas the filtered output doesn’t :
Time: 170109 11:59:59
User@Host: pest_user[pest_user] @ 10.226.13.13 
Query_time: 0.000221 Lock_time: 0.000000 Rows_sent: 0 Rows_examined: 0
l lose schema information as well but it’s less a problem in my situation.
Is there a way to keep the query cache info in the slowlog output ?
Any help would me much appreciated.