bluge
- blugelabs/bluge
- Apache-2.0, Golang
- 支持字段类型 - Text, Numeric, Date, Geo Point
- 数字内部表示为 float64 - int 只能精确到 ±2^53
- 支持查询类型
- Term, Phrase, Match, Match Phrase, Prefix
- Conjunction, Disjunction, Boolean
- Numeric Range, Date Range
- BM25
- 支持聚合
- sum, min, max, avg, weighted avg
- count
- duration
- cardinality estimation
- quantil approximation
- buckets
- 参考
- blugelabs/query_string
- blevel 形式的查询字符串
- blugelabs/ice
- segment plugin
- blevesearch/segment
- Unicode Text Segmentation
- http://www.unicode.org/reports/tr29/
- SegmentWords
- ragel
- blugelabs/query_string
Notes
- 默认
- 搜索字段名
_all - analyzer.NewStandardAnalyzer
- tokenizer.UnicodeTokenizer
- token.LowerCaseFilter
- similarity.NewBM25Similarity
- 搜索字段名
- analyzer.Analyzer = CharFilters+Tokenizer+TokenFilters
- 配置里的 默认 analyzer 只用于搜索
- 每个字段关联 analyzer
- 修改推荐使用 Batch 操作
- 排序
_score- 添加
-前缀 表示 desc
- Tokenizer
- ExceptionsTokenizer
- CharacterTokenizer
- RegexpTokenizer
- SingleTokenTokenizer
- UnicodeTokenizer
- 聚合
- WithStandardAggregations
- Count
- Duration
- max_score
- WithStandardAggregations
- Query
- 基于类型的 Searcher
- FuzzQuery - vellum, Levenshtein
- Prefix, Regex, Term, TermRange, Wildcard
batch.Insert(doc)
batch.Update(doc.ID(), doc)
batch.Delete(doc)