QHB Extensions

This section covers extensions specifically designed for QHB.

• Rbytea — external storage of binary data
  • rbytea Data Type
  • Installing the Extension
  • Configuration
  • Functions for rbytea Type
  • Background Vacuum Process for Old Copies
  • Features of the Rbytea Extension
    • Rbytea in a Cluster and at Using Encryption
    • Updating the Extension from Previous Versions
• Qbim — implements bitemporal data model
  • Background
  • Data Model
  • Model Implementation
  • Installing the Extension
  • Example of Using Qbim for a Test Object
  • Example of Using Qbim with Linked Objects
• Qbayes — methods of statistical analysis based on Bayes' conditional probabilities
  • Extension Purpose
  • Bayesian Prediction Algorithms
  • Extension Methods
  • Limitations and Parameters
  • Usage Example
  • Notes, Examples and Options for Working with Qbayes
• part_import — partial import of data files from an "external" database
  • Description
  • partial_import
  • table_script
  • Test Cases
• qhb_audit — audit of actions in DBMS
  • Configuration
  • Parameters
  • CSV File Format
  • Message format via REST API
  • Tracked Events
  • Event Types
• stat_dump — dumping and restoring the contents of the table pg_statistic
  • Installation
  • Functions
  • Limits
  • Implementation Notes