Optionalhash2^hashExp shared lists for non-Latin trigrams (1-24).
OptionaltopPlaces per short-query entry; 0 leaves the table out (0-255).
Optionaltop2^topBlockExp entries per short-query table block (0-24).
OptionalareaWhich order to build the short-query table in, as
SearchOptions.areaTieBreak would rank a search: "auto" by area
when the reader has a locate index (CGeoDataReader.placeAreas()),
true by area (rejecting without one), false plainly. A reader
only answers from the table when it ranks the same way, so build it
the way the index will be used: with "auto", after the locate index.
Parameters of a search index (Appendix B.11); every one has a recommended default (
DEFAULT_SEARCH_INDEX_OPTIONS).