go_to_first_doc was typically calling seek with a target smaller than
doc.
Since SegmentPostings typically do a linear search on the full block,
regardless of the current position, it could have our segment postings
go backward.
- Change in the DocSet and Scorer API. (@fulmicoton).
A freshly created DocSet point directly to their first doc. A sentinel value called TERMINATED marks the end of a DocSet.
`.advance()` returns the new DocId. `Scorer::skip(target)` has been replaced by `Scorer::seek(target)` and returns the resulting DocId.
As a result, iterating through DocSet now looks as follows
```rust
let mut doc = docset.doc();
while doc != TERMINATED {
// ...
doc = docset.advance();
}
```
The change made it possible to greatly simplify a lot of the docset's code.
- Misc internal optimization and introduction of the `Scorer::for_each_pruning` function. (@fulmicoton)
* Alternative take on boosted queries
* Fixing unit test
* Added boosting to the query grammar.
* Made BoostQuery public.
* Added support for boosting field in QueryParser
Closes#547
* Tidy up
fmt
remove unneccessary -> Result<()> followed by run.unwrap() in a test
* Adding support for elasticsearch-style unbounded queries
Extend the UserInputBound to include Unbounded, so we can reuse formatting and
internal query format
* Still working on elastic-style range queries
Fixes#498
Merge the elastic_range into range
Reformat to make code easier to follow, use optional() macro to return Some
* Fixed bugs
Made the range parser insensitive to whitespace between the ":" and the range.
Removed optional parsing of field.
Added a unit test for the range parser.
Derived PartialEq to compare the results of parsing as structs, instead of
strings. Found a bug with that unit test - "*}" was parsed as an
UserInputBound::Exclusive, instead of UserInputBound::Unbounded. Added an early
detection-and-return for * in the original range parser
* Correct failing test
Assume that we will use "{*" for Unbounded ranges
* Add a note in the changelog
cargo-fmt
* Moved parenthesis to a newline to make nested if-else more visible
* add basic support for float
as for i64, they are mapped to u64 for indexing
query parser don't work yet
* Update value.rs
* implement support for float in query parser
* Update README.md
* Split Collector into an overall Collector and a per-segment SegmentCollector. Precursor to cross-segment parallelism, and as a side benefit cleans up any per-segment fields from being Option<T> to just T.
* Attempt to add MultiCollector back
* working. Chained collector is broken though
* Fix chained collector
* Fix test
* Make Weight Send+Sync for parallelization purposes
* Expose parameters of RangeQuery for external usage
* Removed &mut self
* fixing tests
* Restored TestCollectors
* blop
* multicollector working
* chained collector working
* test broken
* fixing unit test
* blop
* blop
* Blop
* simplifying APi
* blop
* better syntax
* Simplifying top_collector
* refactoring
* blop
* Sync with master
* Added multithread search
* Collector refactoring
* Schema::builder
* CR and rustdoc
* CR comments
* blop
* Added an executor
* Sorted the segment readers in the searcher
* Update searcher.rs
* Fixed unit testst
* changed the place where we have the sort-segment-by-count heuristic
* using crossbeam::channel
* inlining
* Comments about panics propagating
* Added unit test for executor panicking
* Readded default
* Removed Default impl
* Added unit test for executor
* (#321) Add support for range query parsing to grammar / parser. Still needs to be wired through the rest of the way.
* (321) Finish wiring RangeQuery parsing through
* (#321) Add logical AST query parser tests for RangeQuery
* (#321) Support parsing AllQuery
* (#321) Update documentation of QueryParser
* (#321) Support negative numbers in range query parsing
PhraseQuery panics with a nice error message when the underlying field does not have any positions.
The `QueryParser` fails as well with a dedicated error.
