SAP HANA 2.0 Administration · Performance Analysis: SQL Tuning & Plan Analysis

After a failover to the secondary host, you open M_LOAD_HISTORY_HOST/SERVICE to investigate the pre-failover load and they're empty. Is the history lost, and where do you actually look?

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More in Performance Analysis: SQL Tuning & Plan Analysis

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A production statement performs badly, but re-typing its SQL into EXPLAIN PLAN gives a different (fine) plan. What EXPLAIN PLAN option gets you the plan the optimizer actually chose in production?

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