```
2018-04-27 13:25:05 refreshLinks Malline:Keruumerkintä table=templatelinks recursive=1 rootJobIsSelf=1 rootJobSignature=7aa83f4a5c79f8fa3ac035f3a34fdb228caa2e2d rootJobTimestamp=20180427132505 causeAction=api-purge causeAgent=WikiSysop requestId=WuMYQlVtm71TO8srrAoVRwAAAAU (id=19514342,timestamp=20180427132505) t=66 error=JobQueueError: Wikimedia\Rdbms\DBQueryError: A database query error has occurred. Did you forget to run your application's database schema updater after upgrading?
Query: INSERT INTO `job` (job_cmd,job_namespace,job_title,job_params,job_timestamp,job_sha1,job_random) VALUES ('refreshLinks','10','Keruumerkintä','a:10:{s:9:\"recursive\";b:1;s:5:\"table\";s:13:\"templatelinks\";s:5:\"range\";a:4:{s:5:\"start\";i:18101;s:3:\"end\";b:0;s:9:\"batchSize\";i:300;s:9:\"subranges\";
[snip]
','20180427132505','r22bcs0doqwg97pwkh2evou3ekyphph','359693319')
Function: JobQueueDB::doBatchPush
Error: 1406 Data too long for column 'job_params' at row 1 ([redacted])
```
To reproduce set `$wgSQLMode = 'TRADITIONAL';` – otherwise the insert might succeed but get truncated, in which case it will fail later on `unserialize`.
MediaWiki 1.31.0-alpha