[TRAFODION-2140] Add capability for incremental Update Statistics

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.1-incubating
• Assignee: Barry Fritchman
• Reporter: Barry Fritchman
• Created: 04/Aug/16 00:13
• Updated: 15/Sep/18 07:31
• Resolved: 11/Aug/16 17:09

Description

The IUS feature provides the ability to update existing histograms incrementally, rather than doing it all from scratch each time. A persistent sample table is used, which is modified at Update Stats time using a predicate to identify rows modified since the last IUS execution.