1、优化业务SQL 这类优化，包括业务SQL自身，表结构，数据等方面。 表结构 目前涉及到的主要是hash分布表的分布列选择，以及何时使用复制表的情况。 Hash分布表 选择好的Hash分布表，可以避免在做group, join时数据在各个计算节点间的一次额外的数据传输。

Occurred on August 22, 2025 / Estadio Pensativo, Antigua Guatemala, Guatemala Info from Licensor: "In the Antigua vs. Mixco match, someone from outside stole the show last Friday in Antigua ...

As expected, the Houston Rockets officially declined to match the two-year, $4.5-million offer sheet presented by the Atlanta Hawks to restricted free agent center N’Faly Dante. The news was first ...

Hedera Hashgraph joins the UK Cryptoasset Business Council to boost its presence in the UK crypto ecosystem. HBAR token sees a minor impact on its price despite the announcement, down 4.15% in the ...

At Build 2025, SQL Server 2025 officially entered public preview. As one of the world’s most popular databases, this release continues a decades-long history of innovation with features made for ...

Anyscale introduces a hash-based shuffle backend in Ray Data, enhancing joins and performance for repartitioning and aggregations. Discover the advancements in the Ray 2.46 release. Anyscale has ...

Prince George and Prince William celebrate an Aston Villa goal during last night’s match against Paris Saint-Germain. Jean Catuffe - Getty Images ...

Tiger Woods joined PGA Tour Commissioner Jay Monahan and player director Adam Scott in a second White House meeting on Thursday, another sign the sport is moving rapidly toward ending the division ...

If when installing SolidWorks, Microsoft SQL Server fails to install, first change block sizes and the instance name and see. More solutions here.