v.18.14Improvement
Support for Decimal Data Type in External Dictionaries
Support for the Decimal data type in external dictionaries. #3324Why it matters
This feature enables external dictionaries in ClickHouse to handle the<code>Decimal</code> data type, allowing for more precise and accurate numeric data retrieval and manipulation. It solves the limitation where external dictionaries could not natively represent decimal values, thus enhancing integration with data sources that use decimal fields.How to use it
Users can now define external dictionaries with<code>Decimal</code> fields by specifying the decimal type in the dictionary source schemas and configuration files. This allows dictionaries to retrieve and store decimal values directly, improving compatibility and precision in lookups.