The all_xmltags index parameter
Use the all_xmltags parameter to enable searches on all the XML tags or paths in a column.
All the XML tags are indexed as fields in the bts index. If you use the xmlpath_processing parameter, full paths are indexed. The text value within fields can be searched. The attributes of XML tags are not indexed in a field unless you use the all_xmlattrs index parameter.
For information about using paths, see The xmlpath_processing index parameter.
If you want to index only specific tags in a column, use the xmltags parameter. See The xmltags index parameter.
To view the fields that you have indexed, use the bts_index_fields() function. See bts_index_fields() function.