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MicroStrategy VLDB properties with Hive


 Recommended VLDB Properties for use of MicroStrategy 9 with Hive 0.7x




The recommended VLDB optimizations for Hive 0.7x are listed below. These values are set by default when the "Hive 0.7x" database object is used (set at Configuration Managers > Database Instances > Database Instance > Database connection type)




Selected Default VLDB Properties for Hive 0.7x
 VLDB Category VLDB Property Setting Value 
 Tables Fallback Table Type Permanent Table
 Tables Maximum SQL Passes Before FallBack  0 (no threshold)
 Tables Maximum Tables in FROM Clause Before FallBack 0 (no threshold)
 Tables Drop Temp Table Method Drop after final pass 
 Tables Table Creation Type Implicit Table
 Query Optimizations  Sub Query Type  Use Temporary Table, falling back to IN (SELECT COL) for correlated subquery
 Joins Full Outer Join Support Support
 Select/Insert Distinct/Group By option (when no aggregation and not table key)  Use GROUP BY
 Query Optimizations SQL Global Optimization Level 4: Level 2 + Merge All Passes with Different Where
 Query Optimizations Set Operator Optimization Disabled
 Joins Join Type Join 92
 Select/Insert UNION Multiple Insert Use UNION

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