v2.0
- About Uqbar
- Release Note
- Uqbar Installation
- Uqbar Management
- Data Retention Policy
- Time-Series Table Management
- Time-Series Data Write
- Data Compression
- Data Deletion
- Data Query
- Continuous Aggregation
- Time-Series Views
- Cluster Management
- Backup and Restoration
- Security
- GUC Parameters
- SQL Syntax
- Third Party Tools Support
- Glossary
Uqbar 2.0.1
1. Version Description
Uqbar 2.0.1 is a patch version of Uqbar 2.0.0, which was released on January 10, 2024. It adds some new features based on Uqbar 2.0.0 and fixes some defects. The content is as follows.
2. New Features
- Support query operator difference, which is used to calculate the difference between data.
- Support query operator derivative, which is used to calculate the change rate of data.
- Support query operator percentile, which is used to return the value located at the Nth percentile after sorting the data.
3. Performance Optimization
- Optimize the compression process and improve data compression speed.
4. Defect Fixes
- Fixed occasional background task execution errors.
- Fixed an error that occasionally occurred when deleting continuous aggregation.
- Fixed the issue where help could not be found through the command line for some syntaxes.
- Optimize background task execution logic.