Installing PolyBase in SQL Server 2019
PolyBase is an optional component in SQL Server. You must either include it as part of the initial install or add it after install to be able to use it. You will also need to enable it once installed.
PolyBase can be installed in one of two modes: standalone mode or as a scale-out group. In standalone mode, SQL Server operates as both the "head" and a singular "compute" node. This is a good option when connecting to smaller, relational sources. When you set up PolyBase as a scale-out group, SQL Server operates as a cluster with a "head" and multiple "compute" nodes. This provides enhanced scalability and performance for the solution. Scale-out groups are particularly relevant when querying very large systems with partitioned tables or a big data system, which may contain billions of records.
In this section, you will learn about how you install PolyBase in either mode. The steps to perform this task...