one two three应用boost每个关键字的功能后，给定搜索关键字的ES搜索结果似乎错误。请帮助我修改我的“错误”查询，以完成下文所述的“预期结果”。我在使用LUCENE 4.10.4的* ES 1.7.4 *
one two three
boost
提升标准 - three 被认为是最重要的关键字 ：
three
word - boost ---- ----- one 1 two 2 three 3
ES索引内容 - 仅显示MySQL转储以使发布更短
mysql> SELECT id, title FROM post; +----+-------------------+ | id | title | +----+-------------------+ | 1 | one | | 2 | two | | 3 | three | | 4 | one two | | 5 | one three | | 6 | one two three | | 7 | two three | | 8 | none | | 9 | one abc | | 10 | two abc | | 11 | three abc | | 12 | one two abc | | 13 | one two three abc | | 14 | two three abc | +----+-------------------+ 14 rows in set (0.00 sec)
预期的ES查询结果 - 用户正在搜索 one two three。 我对记分相同的记录的顺序并不感到困惑。 我的意思是，如果记录6和13切换位置，我不在乎。
+----+-------------------+ | id | title | my scores for demonstration purposes +----+-------------------+ | 6 | one two three | (1+2+3 = 6) | 13 | one two three abc | (1+2+3 = 6) | 7 | two three | (2+3 = 5) | 14 | two three abc | (2+3 = 5) | 5 | one three | (1+3 = 4) | 4 | one two | (1+2 = 3) | 12 | one two abc | (1+2 = 3) | 3 | three | (3 = 3) | 11 | three abc | (3 = 3) | 2 | two | (2 = 2) | 10 | two abc | (2 = 2) | 1 | one | (1 = 1) | 9 | one abc | (1 = 1) | 8 | none | <- This shouldn't appear +----+-------------------+ 14 rows in set (0.00 sec)
意外的ES查询结果 - 不幸的是，这就是我得到的。
+----+-------------------+ | id | title | _score +----+-------------------+ | 6 | one two three | 1.0013864 | 13 | one two three abc | 1.0013864 | 4 | one two | 0.57794875 | 3 | three | 0.5310148 | 7 | two three | 0.50929534 | 5 | one three | 0.503356 | 14 | two three abc | 0.4074363 | 11 | three abc | 0.36586377 | 12 | one two abc | 0.30806428 | 10 | two abc | 0.23231897 | 2 | two | 0.12812772 | 1 | one | 0.084527075 | 9 | one abc | 0.07408653 +----+-------------------+
ES查询
curl -XPOST "http://127.0.0.1:9200/_search?post_dev" -d' { "query": { "bool": { "must": { "match": { "title": { "query": "one two three" } } }, "should": [ { "match": { "title": { "query": "one", "boost": 1 } } }, { "match": { "title": { "query": "two", "boost": 2 } } }, { "match": { "title": { "query": "three", "boost": 3 } } } ] } }, "sort": [ { "_score": { "order": "desc" } } ], "from": "0", "size": "100" }'
其他一些测试查询：
# Index some test data curl -XPUT "localhost:9200/test/doc/1" -d '{"title": "one"}' curl -XPUT "localhost:9200/test/doc/2" -d '{"title": "two"}' curl -XPUT "localhost:9200/test/doc/3" -d '{"title": "three"}' curl -XPUT "localhost:9200/test/doc/4" -d '{"title": "one two"}' curl -XPUT "localhost:9200/test/doc/5" -d '{"title": "one three"}' curl -XPUT "localhost:9200/test/doc/6" -d '{"title": "one two three"}' curl -XPUT "localhost:9200/test/doc/7" -d '{"title": "two three"}' curl -XPUT "localhost:9200/test/doc/8" -d '{"title": "none"}' curl -XPUT "localhost:9200/test/doc/9" -d '{"title": "one abc"}' curl -XPUT "localhost:9200/test/doc/10" -d '{"title": "two abc"}' curl -XPUT "localhost:9200/test/doc/11" -d '{"title": "three abc"}' curl -XPUT "localhost:9200/test/doc/12" -d '{"title": "one two abc"}' curl -XPUT "localhost:9200/test/doc/13" -d '{"title": "one two three abc"}' curl -XPUT "localhost:9200/test/doc/14" -d '{"title": "two three abc"}' # Make test data available for search curl -XPOST "localhost:9200/test/_refresh?pretty" # Search using function score curl -XPOST "localhost:9200/test/doc/_search?pretty" -d'{ "query": { "function_score": { "query": { "match": { "title": "one two three" } }, "functions": [ { "filter": { "query": { "match": { "title": "one" } } }, "weight": 1 }, { "filter": { "query": { "match": { "title": "two" } } }, "weight": 2 }, { "filter": { "query": { "match": { "title": "three" } } }, "weight": 3 } ], "score_mode": "sum", "boost_mode": "replace" } }, "sort": [ { "_score": { "order": "desc" } } ], "from": "0", "size": "100" }'
