Index Options

Closed View Index Expert tab – Options button options

The Index Options page under the Index Expert tab on the Options window defines how Index Expert generates index-set alternatives. If you selected Customize on the Intelligence page, these values determine the optimization level for index generation.

Options

Index Options	Description
Retrieve index selectivity by sampling a maximum number of records (Default: 1000, Range = 10 to 99999)	Specify the number of records to be selected for determine the selectivity of the data.
Evaluate columns in SELECT list	Specify whether to consider SELECT list columns when generating indexes.
Maximum number of columns in a composite index (Default 4, Range 1 to 30)	Specify the maximum number of columns in a composite index.
Maximum number of indexes in an Index Set (Default 4, Range 1 to 99)	Specify the maximum number of indexes in an index set.

Quota

Index Generation Quotas	Description
Index Generation Quota	Specify the maximum number of indexes generated.
Index Set Generation Quota	Specify the maximum number of index sets generated.

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Index Options (Index Expert)

Index Options

Options

Quota