vsop-479 commented on code in PR #13072:
URL: https://github.com/apache/lucene/pull/13072#discussion_r1515861738
##########
lucene/core/src/java/org/apache/lucene/util/automaton/RunAutomaton.java:
##########
@@ -96,6 +101,35 @@ protected RunAutomaton(Automaton a, int alphabetSize) {
}
}
+ /** Returns true if this state can accept everything(all remaining
suffixes). */
+ private boolean canMatchAllSuffix(int state) {
+ assert automaton.isAccept(state);
+ int numTransitions = automaton.getNumTransitions(state);
+ // Apply to PrefixQuery, TermRangeQuery.
+ if (numTransitions == 1) {
Review Comment:
> we need to figure out why Regexp/WildcardQuery are compiling down to 127
as their max on .* suffix transitions?
These queries' (including `AutomatonQuery`)`Automaton` like this: 3 -> 3:
[0, 127]; 3 -> 4: [194, 194]; 4 -> 3: [128, 191]. assume 3 is an accept state.
It is more complex to detect wether a state can accept all remaining
suffixes for these queries, because its accept states are split into many
transitions like: [0, 127], [194, 223], [224, 239], [240, 243], [244], etc.
I am still working on this, any suggestion is welcome @mikemccand.
> Perhaps we could also add tests cases for custom Automata passed to
AutomatonQuery matching sometimes binary (non-UTF8) terms?
Added.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org
For additional commands, e-mail: issues-h...@lucene.apache.org
