v.21.9Improvement

Executable Dictionaries with DDL Query Support in ClickHouse

Executable dictionaries (executable, executable_pool) enable creation with DDL query using clickhouse-local. Closes #22355. #26510 (Maksim Kita).
Added support for creating executable dictionaries (executable and executable_pool) using DDL queries with clickhouse-local.

Why it matters

This feature allows users to define and create executable dictionaries directly via DDL queries executed in clickhouse-local, simplifying dictionary management and enabling easier local testing and development without requiring a running ClickHouse server.

How to use it

Use clickhouse-local to run DDL queries that create dictionaries of type executable or executable_pool. This enables dictionary creation and testing in isolated environments using local execution.