Column transformation function

You can use your own function to convert a nonsupported format or data type into a supported format or data type. By specifying a User Defined Function (UDF), you can get the original text document as input. The output from the UDF should be a supported format, that can be processed during indexing.

You can also use this feature for indexing documents that are stored on external nonsupported data stores. In this case, the DB2 column contains document references and the function returns the document contents that have the relevant document reference.

See Creating a text index on a nonsupported data type.