GitHub

Support recursive planning of recurring inner joins when there is a reference to outer query

Currently, Citus can successfully execute queries with recurring left join with a reference to outer query via recursive planning. However, when the same subquery uses an INNER JOIN, recursive ...
IEEE

Hive and MySQL - Query performance comparison for a multidimensional model

Abstract: This paper presents a performance comparison of queries in multidimensional database stored in two different platforms, MySQL, which is one of the most popular database management systems ...
GitHub

Distributed subquery significantly slower than identical handmade temporary table

I am struggling to identify slowness in clickhouse with (what appears to me), two identical operations. I'll describe the problem abstractly and then work down into traces and profiles. Clickhouse ...
InfoWorld

Oracle accelerates MySQL HeatWave queries with machine learning

Taking aim at competitors including Amazon Aurora and Snowflake, Oracle has enhanced the MySQL HeatWave in-memory query accelerator in the Oracle Cloud’s MySQL Database Service by leveraging advanced ...
InfoWorld

Oracle adds analytics to MySQL in the cloud

Oracle MySQL Database Service with the MySQL Analytics Engine combines OLTP and OLAP in the same MySQL database in the Oracle Cloud Oracle is combining OLTP (online transaction processing) and OLAP ...
Frontiers

LocationSpark: In-memory Distributed Spatial Query Processing and Optimization

Due to the ubiquity of spatial data applications and the large amounts of spatial data that these applications generate and process, there is a pressing need for scalable spatial query processing. In ...