pt-fingerprint does not parse binary data correctly

[Karthik Appigatla]

[root@kappigatla kappigatla]# pt-fingerprint --version
pt-fingerprint 2.2.17

[root@kappigatla kappigatla]# pt-fingerprint --query="INSERT IGNORE test (guid, time, server, service, tier, topic, count, begin_timestamp, end_timestamp, update_time, size_in_bytes) VALUES (_binary'1y?^_VU<84>??X<81>??.?\\', 1469433660359, 'localhost', 'frontpage', 'test', 'ActionEvent', 131, 1469433000000, 1469433600000, 1469433666056, 0)"
insert ignore test (guid, time, server, service, tier, topic, count, begin_timestamp, end_timestamp, update_time, size_in_bytes) values (_binary?localhost?frontpage?test?actionevent', ?, ?, ?, ?, ?)

Ideally the output should be
insert ignore test (guid, time, server, service, tier, topic, count, begin_timestamp, end_timestamp, update_time, size_in_bytes) values (_binary?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)

We are getting the correct output with other binary data
Example:
[root@kappigatla kappigatla]# pt-fingerprint --query="INSERT IGNORE test (guid, time, server, service, tier, topic, count, begin_timestamp, end_timestamp, update_time, size_in_bytes) VALUES (_binary'1G?9??\Z? F?<81><9B>???', 1469433660359, 'localhost', 'frontpage', 'test', 'ActionEvent', 131, 1469433000000, 1469433600000, 1469433666056, 0)"
insert ignore test (guid, time, server, service, tier, topic, count, begin_timestamp, end_timestamp, update_time, size_in_bytes) values (_binary?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)

This also affects the pt-query-digest report.

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PT-1374