---

id: experimental-features title: “Experimental features”

The following features are marked experimental in the Druid docs.

This document includes each page that mentions an experimental feature. To graduate a feature, remove all mentions of its experimental status on all relevant pages.

Note that this document does not track the status of contrib extensions, all of which are considered experimental.

SQL-based ingestion

• SQL-based ingestion
• SQL-based ingestion concepts
• SQL-based ingestion and multi-stage query task API

Indexer process

• Indexer process
• Processes and servers

Kubernetes

• Kubernetes

Segment locking

• Configuration reference
• Task reference
• Design

Front coding

• Ingestion spec reference

Other configuration properties

• Configuration reference
  • CLOSED_SEGMENTS_SINKS mode
  • Expression processing configuration druid.expressions.allowNestedArrays