IBM® Informix® 12.10

Effect of PDQ on the query plan

When the parallel database query (PDQ) feature is turned on, the optimizer can choose to execute a query in parallel. This can improve performance dramatically when the database server processes queries that decision-support applications initiate.

For more information, see Parallel database query (PDQ).

Parent topic: Factors that affect the query plan

Examples exchange | Troubleshooting

To find the PDF, see Publications for the IBM Informix 12.10 family of products.
For the release notes, documentation notes, and/or machine notes, see the Release Notes page.