Configuration # By default, the Table & SQL API is preconfigured for producing accurate results with acceptable performance. Depending on the requirements of a table program, it might be necessary to adjust certain parameters for optimization. For example, unbounded streaming programs may need to ensure that the required state size is capped (see streaming concepts). Overview # When instantiating a TableEnvironment, EnvironmentSettings can be used to pass the desired configuration for the cur...| nightlies.apache.org
Joins # Batch Streaming Flink SQL supports complex and flexible join operations over dynamic tables. There are several different types of joins to account for the wide variety of semantics queries may require. By default, the order of joins is not optimized. Tables are joined in the order in which they are specified in the FROM clause. You can tweak the performance of your join queries, by listing the tables with the lowest update frequency first and the tables with the highest update frequen...| nightlies.apache.org