About Indexing

By default, when you index a data source, all tables in the data source are fully indexed. But if time becomes an issue, here are some ways to deal with it:

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If you have an especially large data source, you might want to index it at a time when there is the least amount of data source activity. You might also want to use sampling for large data sources. See About Data Sampling .

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You can limit the scope of indexing and improve performance by excluding catalogs, schemas, or tables from the data source. See Modifying a Data Source Definition, for more information.

These factors affect how long the indexing and relationship discovery process might take:

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The number of rows and columns in the data source.

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The TDV machine and processor.

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The maximum Java heap setting.

When Discovery creates the index, it saves it in the TDV installation directory. You can specify a different location of this directory. See Changing the Index Directory.