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https://issues.apache.org/jira/browse/TAJO-122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi updated TAJO-122:
------------------------------
Description:
(I've changed this issue from implementing an utility class to preint JSON to
implementing EXPLAIN clause support.(
For convenience for debugging and developing new engine (TAJO-104), we need
EXPLAIN clause to print plans used in Tajo internal. In this issue, we only
focus on showing a logical plan.
was:Tajo has used JSON format to transmit a logical plan to workers. For
convenience for debugging and developing new engine (TAJO-104), we need an
utility to print a logical plan json.
> Add EXPLAIN clause to show a logical plan
> -----------------------------------------
>
> Key: TAJO-122
> URL: https://issues.apache.org/jira/browse/TAJO-122
> Project: Tajo
> Issue Type: New Feature
> Components: planner/optimizer
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Fix For: 0.2-incubating
>
>
> (I've changed this issue from implementing an utility class to preint JSON to
> implementing EXPLAIN clause support.(
> For convenience for debugging and developing new engine (TAJO-104), we need
> EXPLAIN clause to print plans used in Tajo internal. In this issue, we only
> focus on showing a logical plan.
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