# CQL

* [Time Range Queries Do Not Return Some or All of the Data](https://docs.scylladb.com/manual/master/troubleshooting/time-zone.md)
* [COPY FROM fails - field larger than the field limit](https://docs.scylladb.com/manual/master/troubleshooting/copy-from-failed.md)
* [CQL active connection table](https://docs.scylladb.com/manual/master/troubleshooting/clients-table.md)