> ## Documentation Index
> Fetch the complete documentation index at: https://xata.io/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

* [CDC](https://en.wikipedia.org/wiki/Change_data_capture): Change Data Capture
* [WAL](https://www.postgresql.org/docs/current/wal-intro.html): Write Ahead Logging
* [LSN](https://pgpedia.info/l/LSN-log-sequence-number.html): Log Sequence Number
* [DDL](https://en.wikipedia.org/wiki/Data_definition_language): Data Definition Language