This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features.
The SQL module allows to execute custom queries against an SQL database and store the results to Elasticsearch.
The currently supported databases are the ones already included in Metricbeat, which are: - PostgreSQL - MySQL - Oracle - Microsoft SQL - CockroachDB