Starburst Delta Lake connector#

The Starburst Delta Lake connector is an extended version of the Delta Lake connector with configuration and usage identical.

The following improvements are included:

Requirements#

To connect to Databricks Delta Lake, you need:

Fulfill the Delta Lake connector requirements.
A valid Starburst Enterprise license.

Extensions#

The connector includes all the functionality described in the Delta Lake connector as well as these features:

MinIO storage support

Configuration#

The configuration of the Starburst Delta Lake connector is identical to the Delta Lake connector, with the addition of the following catalog session properties for the parquet writer:

Parquet catalog session properties#
Property name	Description
`parquet_optimized_writer_enabled`	Enables the experimental, native Parquet writer.

SQL support#

The connector supports all of the SQL statements listed in the Delta Lake connector documentation.

The following improvements are included:

Security operations, see also SQL security

SQL security#

You must set the hive.security property in your catalog properties file to sql-standard in order to use SQL security operation statements. See SQL standard based authorization for more information.

Performance#

The connector includes a number of performance improvements, detailed in the following sections:

Accelerated Parquet reader#

The connector includes a Parquet reader with numerous performance improvements for reading data files using the Parquet format.

The reader is enabled by default. You can disable it, and use the default reader from Trino in your catalog properties file:

delta.accelerated-parquet-reader.enabled=false

Alternatively, you can disable it for a specific user session with the catalog session property accelerated_parquet_reader_enabled.

Starburst Cached Views#

The connector supports table scan redirection to improve performance and reduce load on the data source.

Security#

The connector includes a number of security-related features, detailed in the following sections.

Authorization#

The connector supports standard Hive security for authorization. For configuration properties, see the ‘Authorization’ section in Hive connector security configuration.