SQL Hints

Availability

This feature is available since openGauss 1.1.0.

Introduction

SQL hints can be used to override execution plans.

Benefits

Improves SQL query performance.

Description

In plan hints, you can specify a join order; join, stream, and scan operations, the number of rows in a result, and redistribution skew information to tune an execution plan, improving query performance.

Enhancements

None.

Constraints

None.

Dependencies

None.