* add missing aggregation part 2
Add missing support for:
- Mixed types columns
- Key of type string on numerical fields
The special aggregation is slower than the integrated one in TermsAggregation and therefore not
chosen by default, although it can cover all use cases.
* simplify, add num_docs to empty
* tokenizer-api: reduce Tokenizer overhead
Previously a new `Token` for each text encountered was created, which
contains `String::with_capacity(200)`
In the new API the token_stream gets mutable access to the tokenizer,
this allows state to be shared (in this PR Token is shared).
Ideally the allocation for the BoxTokenStream would also be removed, but
this may require some lifetime tricks.
* simplify api
* move lowercase and ascii folding buffer to global
* empty Token text as default
* enable tokenizer on json fields
enable tokenizer on json fields for type text
* Avoid making the tokenizer within the TextAnalyzer pub(crate)
* Moving BoxableTokenizer to tantivy.
---------
Co-authored-by: Paul Masurel <paul@quickwit.io>
Applied this command to the code, making it a bit shorter and slightly
more readable.
```
cargo +nightly clippy --all-features --benches --tests --workspace --fix -- -A clippy::all -W clippy::uninlined_format_args
cargo +nightly fmt --all
```
* compress sstable with zstd
* add some details to sstable readme
* compress only block which benefit from it
* multiple changes to sstable
make compression optional
use OwnedBytes instead of impl Read in sstable, required for next point
use zstd bulk api, which is much faster on small records
* cleanup and use bulk api for compression
* use dedicated byte for compression
* switch block len and compression flag
* change default zstd level in sstable
* tokenizer option on text fastfield
allow to set tokenizer option on text fastfield (fixes#1901)
handle PreTokenized strings in fast field
* change visibility
* remove custom de/serialization
* Better mixed types support in aggs and fix serialization issue
- Improve support for mixed types in JSON field aggregations (pick the right field, #1913)
- Resolve the issue with JSON serialization for numeric keys (fixes#1967)
- Add JSON round-trip test for term buckets
- Remove `u64_lenient`, as this is a footgun without the type
- move aggregation benchmarks
* remove shadowing
* document a new sstable format
* add support for changing target block size
* use new format for sstable index
* handle sstable version errror
* use very small blocks for proptests
* add a footer structure
* add memory limit for aggregations
introduce AggregationLimits to set memory consumption limit and bucket limits
memory limit is checked during aggregation, bucket limit is checked before returning the aggregation request.
* Apply suggestions from code review
Co-authored-by: Paul Masurel <paul@quickwit.io>
* add ByteCount with human readable format
---------
Co-authored-by: Paul Masurel <paul@quickwit.io>
* handle missing column for aggs
add empty column fallback for missing column in aggs.
Fix sort for term agg on sub-agg with missing value (null is smallest)
* add error when field is not fast
* Adding a write schema to columnar's merge operations.
* Added unit test checking min/max when columns are empty.
* CR comment
* Rename to value_type_to_column_type
The new fast field code, based on columnar, had a larger minimum memory
footprint, causing the first docuemnt to trigger a flush of the asegment
in this unit test.
This PR prevents the allocation of a large capacity for the different hashmap tables
using in the columnar writer.
Closes#1859
* Improvement on the scalar / random bitpacker code.
Added proptesting
Added simple benchmark
Added assert and comments on the very non trivial hidden contract
Remove the need for an extra padding.
The last point introduces a small performance regression (~10%).
* Fixing unit tests
Introduce MakeZero trait, remove make_zero from FastValue
Merge two multivalue fastfield implementations into one
prepare range query on fastfield for different types
* prepare fastfield format for null index
* add format version for fastfield
* Update fastfield_codecs/src/compact_space/mod.rs
* switch to variable size footer
* serialize delta of end
* add aggregation support for date type
fixes#1332
* serialize key_as_string as rfc3339 in date histogram
* update docs
* enable date for range aggregation
