karlarao / hive_sql_tuning

set of tools for hive sql tuning/troubleshooting

Hive SQL Tuning

tools available here

• https://github.com/karlarao/hive_sql_tuning/tree/master/lipwig_explain_plan
• https://github.com/karlarao/hive_sql_tuning/tree/master/hive_table_tools
• https://github.com/karlarao/hive_sql_tuning/tree/master/PlanSummarizer

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Example: 4 similar SQLs with distinct - query logic

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Example: 4 similar SQLs with distinct - hive explain plan (high level)

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Example: 4 similar SQLs with distinct - hive explain plan (zoomed in)

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Example: 4 similar SQLs with distinct - explain plan in Oracle

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Example: comparing merge vs map join

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