[TAJO-2136] (Umbrella) Optimizer should transform plans instead of modifying them. - ASF JIRA

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Details

Type: Improvement
Status: Open
Priority: Major
Resolution: Unresolved
Affects Version/s: None
Fix Version/s: None
Component/s: Planner/Optimizer
Labels:
None

Description

Many bugs and inconsistent meta data of the Plan and MasterPlan representation are being caused by modification. We need to refactor the optimizer and rules to transform immutable data representation instead of modifying them.

Attachments

Sub-Tasks

1.	Implement LogicalNode visitor designed for plan transformation		Open	Unassigned
2.	Implement EvalNode visitor designed for expression transformation		Open	Unassigned

Activity

People

Assignee:: Unassigned

Reporter:: Hyunsik Choi

Votes:: 0 Vote for this issue

Watchers:: 0 Start watching this issue

Dates

Created:: 23/Apr/16 04:09

Updated:: 23/Apr/16 09:40