搜索效率提升（Search for boosts）

Query time boosts allow matches on certain parts of the query to influence the score more than others.
通知指定查询的某些部分上的匹配比其他部分对分数的影响更大，从而提升搜索效率。

All query elements can be boosted: terms, phrases, exact terms, expanded terms, proximity (only in filed groups), ranges, and groups.
可以增强所有查询元素：术语、短语、精确术语、词条扩展、邻近性（仅在字段组中）、范围和组。

term^2.4
"phrase"^3
term~0.8^4
=term^3
~term^4
cm:name:(big * yellow)^4
1..2^2
[1 TO 2]^2
yellow AND (car OR bus)^3