![]() ![]() Window functions allows developers to perform calculations across a set of rows related to the current query. Using row_number(), rank(), dense_rank(), and count() as window functions can offer performance benefits in the new version, the PostgreSQL group said. ![]() If sorting is not done, then the database management system will return an output table based on the scan and order inside the disk, which is not useful for analysis purposes. ![]() Sorting is an extra step taken by developers to ensure that a query output table doesn’t come back in an unspecified order. The new version of PostgreSQL has better in-memory and on-disk sorting algorithms, the development group said, adding that benchmark tests have shown a 25%-to-500% increase in speed, depending on data types. PostgreSQL 15 offers improved sort performance, compression Just last week, Microsoft added PostgreSQL support for Cosmos DB, and in May, Google Cloud Platform (GCP) launched a PostgreSQL-compatible, fully managed database-as-a-service (DBaaS), dubbed AlloyDB, in public preview. ![]()
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