A format column to record the format (
BINARY) to help filtering during indexing. You can also use the format column to ignore rows for indexing by setting the format column to
IGNORE. This is useful for bypassing rows that contain data incompatible with text indexing such as images.
A character set column to record the document character set for each row.
When you create your index, you must specify the name of the format or character set column in the parameter clause of
For all rows containing the keywords
AUTOMATIC in character set or language columns, Oracle Text will apply statistical techniques to determine the character set and language respectively of the documents and modify document indexing appropriately.