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Enabling Wildcard in a collection at Watson Explorer

Eventually we need to enable search using wildcards like * for a collection at Watson Explorer. For sure this can make our queries consume more CPU and Memory, you can think comparing a query that perform a “select … where field = ‘XXX'” against a query that perform a “select …. where field like ‘*XXX'” (pseudo code). What will be faster? So, think carefully before enable this!

To enable, go to your collection configuration -> Indexing -> Term expansion support (4)  , and check Generate Dictionaries.

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For more information, check here and here.

Enjoy!