NonStop SQL/MP Reference Manual

Table Of Contents
NonStop SQL/MP Reference Manual142115
E-17
Considerations—EXPLAIN
Base table pred. :
[ Type of [ Update | Delete ] : ]
[ SBB for [ Insert | Update ] : ]
[ Seq Blocksplit : ]
Executor pred. :
[ Executor aggr. : ]
[ Pred. selectivity : ]
[ DP2 aggr. : ]
Table selectivity :
Expected rowcount :
Operation cost :
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Operation n : Sort (Appears for sort operations)
Requested :
Sort rows in the :
Purpose :
Sort technique :
Sort type :
UPS workspace :
Sort key columns :
[ Expected rowcount : ] (Appears if sort is for GROUP BY)
Sort cost :
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Operation n : Hash (Appears for hash operations)
Requested :
Hash rows in the :
Purpose :
Hash key columns :
Hash cost :
Total cost :
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The following alphabetic list describes the header lines of a plan: