快速开发网站,自己能够做投票网站吗,wordpress文章封面,创建网站视频elasticsearch version 7.10.1 在Elasticsearch中#xff0c;intervals查询是用来做复杂的区间表达式匹配的#xff0c;它可以基于分析过的文本字段执行一系列复杂的关系运算。intervals查询特别适合于那些需要对文本数据进行模式匹配#xff0c;而不只是单一词汇匹配的情况…elasticsearch version 7.10.1 在Elasticsearch中intervals查询是用来做复杂的区间表达式匹配的它可以基于分析过的文本字段执行一系列复杂的关系运算。intervals查询特别适合于那些需要对文本数据进行模式匹配而不只是单一词汇匹配的情况。
intervals语法
POST _search
{query: {intervals : {my_text : {all_of : {ordered : true,intervals : [{match : {query : my favorite food,max_gaps : 0,ordered : true}},{any_of : {intervals : [{ match : { query : hot water } },{ match : { query : cold porridge } }]}}]}}}}
}intervals查询用于找到文本字段中满足一系列间隔条件的文all_of子句要求所有列出的间隔条件都必须满足。ordered: 设置为true表示间隔条件必须按照指定的顺序出现。intervals: 包含了一系列具体的间隔条件any_of: 至少有一个列出的间隔条件必须满足
第一个间隔条件
查找与my favorite food这个查询完全匹配的文本。设置为0表示查询词之间不允许有任何间隔即它们是连续的。设置为true再次确认查询词必须按照给定的顺序出现。
第二个间隔条件
第一个match查找与hot water这个查询匹配的文本第二个match查找与cold porridge这个查询匹配的文本。
案例
场景一
使用intervals查询找寻句子中“quick”和“dog”之间不超过两个单词的文档
索引创建
PUT /example_index
{mappings: {properties: {sentence: {type: text,analyzer: standard}}}
}文档插入
POST /example_index/_doc
{sentence: The quick brown fox jumps over the lazy dog.
}POST /example_index/_doc
{sentence: Red roses are blue violets are red.
}POST /example_index/_doc
{sentence: The cat in the hat sat on the mat.
}查询语句 场景二
使用intervals查询查找包含数字“3”到“7”的连续序列的文档
索引创建
GET /example_index/_search
{query: {intervals: {sentence: {all_of: {intervals: [{match: {query: quick}},{match: {query: dog}}],ordered: true,max_gaps: 10}}}}
}文档插入
POST /example_index_numbers/_doc
{numbers: 1 2 3 4 5 6 7
}POST /example_index_numbers/_doc
{numbers: 8 9 10 11 12 13 14
}POST /example_index_numbers/_doc
{numbers: 15 16 17 18 19 20 21
}查询语句
GET /example_index_numbers/_search
{query: {intervals: {numbers: {all_of: {intervals: [{match: {query: 3}},{match: {query: 7}}],max_gaps: 3,ordered: true}}}}
}场景三
查询在职位描述中包含了“blue”并且紧接着是“violets”的文档。
索引创建
PUT /example_index
{mappings: {properties: {content: {type: text,analyzer: standard}}}
}文档插入
POST /example_index/_doc
{content: John Doe is an engineer from New York working at XYZ Corp.
}POST /example_index/_doc
{content: Jane Smith is a software developer based in California.
}POST /example_index/_doc
{content: Michael Johnson works as a data scientist at ABC Inc. in Texas.
}POST /example_index/_doc
{content: Sarah Brown is a product manager living in Illinois.
}POST /example_index/_doc
{content: Emily Davis, an architect from Washington DC, joined XYZ Corp last year.
}POST /example_index/_doc
{content: Robert Harris, who lives in Oregon, is a senior software engineer.
}POST /example_index/_doc
{content: Jessica Wilson works in marketing for ABC Inc., located in Florida.
}查询语句
GET /example_index/_search
{query: {intervals: {sentence: {all_of: {intervals: [{match: {query: blue}},{match: {query: violets}}],ordered: true,max_gaps:0}}}}
}
