[TAJO-2005] Add TableStatUpdateRewriter

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.12.0, 0.11.1
• Component/s: Planner/Optimizer
• Assignee: Hyunsik Choi
• Reporter: Hyunsik Choi
• Created: 03/Dec/15 06:01
• Updated: 04/Dec/15 09:09
• Resolved: 04/Dec/15 08:36

Description

Currently, we set table volumes into TableDesc in LogicalPlanner. In this case, we cannot employ the push-downed filters for getting table volumes. For it, we should postpone getting table volumes as late as possible before join ordering optimization.

This patch move the table stat update code into the last rewrite rune in pre rewriters.

Issue Links

• is depended upon by: TAJO-2007 By default, Optimizer should use the table volume in TableStat.