Conserving CPU's cycles ... • 0 implied HN points • 21 May 24
- In MSSQL to PostgreSQL migrations, challenges like query slowdowns may arise, with some queries taking significantly longer to execute in PostgreSQL compared to MSSQL.
- Join algorithm selection and parallelism are two key advantages contributing to MSSQL's impressive query execution speed.
- Multi-clause selectivity estimation in MSSQL allows for more precise cardinality estimation in complex join queries, giving it an edge over PostgreSQL in certain scenarios.