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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-140) Event Based Infrastructure for Syntax Trees in the compiler
Date Tue, 09 Dec 2008 05:43:44 GMT

    [ https://issues.apache.org/jira/browse/HIVE-140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12654708#action_12654708

Zheng Shao commented on HIVE-140:


> Event Based Infrastructure for Syntax Trees in the compiler
> -----------------------------------------------------------
>                 Key: HIVE-140
>                 URL: https://issues.apache.org/jira/browse/HIVE-140
>             Project: Hadoop Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Ashish Thusoo
>            Assignee: Ashish Thusoo
>         Attachments: patch-140.txt
> In order to refactor SemanticAnalyzer into a bunch of different components, we need to
move more modular mechanisms of doing semantic analysis. One of the missing pieces here is
the event based infrastructure for analyzing ASTs in the Semantic Analyzer. We will first
use this infrastructure for lineage tools and then migrate the rest of the Semantic Analyzer
to this infrastructure over time.

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