绝对有可能在索引时使用pattern_capture
token filter来做到这一点。
您首先要为每个日期部分定义一个分析器+标记过滤器组合,并将其分配给日期字段的子字段。每个令牌过滤器将只捕获组是感兴趣的
{
"settings": {
"analysis": {
"analyzer": {
"year_analyzer": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"year"
]
},
"month_analyzer": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"month"
]
},
"day_analyzer": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"day"
]
},
"hour_analyzer": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"hour"
]
},
"minute_analyzer": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"minute"
]
},
"second_analyzer": {
"type": "custom",
"tokenizer": "keyword",
"filter": [
"second"
]
}
},
"filter": {
"year": {
"type": "pattern_capture",
"preserve_original": false,
"patterns": [
"(\\d{4})-\\d{2}-\\d{2}[tT]\\d{2}:\\d{2}:\\d{2}[zZ]"
]
},
"month": {
"type": "pattern_capture",
"preserve_original": false,
"patterns": [
"\\d{4}-(\\d{2})-\\d{2}[tT]\\d{2}:\\d{2}:\\d{2}[zZ]"
]
},
"day": {
"type": "pattern_capture",
"preserve_original": false,
"patterns": [
"\\d{4}-\\d{2}-(\\d{2})[tT]\\d{2}:\\d{2}:\\d{2}[zZ]"
]
},
"hour": {
"type": "pattern_capture",
"preserve_original": false,
"patterns": [
"\\d{4}-\\d{2}-\\d{2}[tT](\\d{2}):\\d{2}:\\d{2}[zZ]"
]
},
"minute": {
"type": "pattern_capture",
"preserve_original": false,
"patterns": [
"\\d{4}-\\d{2}-\\d{2}[tT]\\d{2}:(\\d{2}):\\d{2}[zZ]"
]
},
"second": {
"type": "pattern_capture",
"preserve_original": false,
"patterns": [
"\\d{4}-\\d{2}-\\d{2}[tT]\\d{2}:\\d{2}:(\\d{2})[zZ]"
]
}
}
}
},
"mappings": {
"test": {
"properties": {
"date": {
"type": "date",
"format": "yyyy-MM-dd'T'HH:mm:ssZ",
"fields": {
"year": {
"type": "string",
"analyzer": "year_analyzer"
},
"month": {
"type": "string",
"analyzer": "month_analyzer"
},
"day": {
"type": "string",
"analyzer": "day_analyzer"
},
"hour": {
"type": "string",
"analyzer": "hour_analyzer"
},
"minute": {
"type": "string",
"analyzer": "minute_analyzer"
},
"second": {
"type": "string",
"analyzer": "second_analyzer"
}
}
}
}
}
}
}
然后,当你指数的日期,如2016-01-22T10:01:23Z
,你会得到每一个填入相关的部分,即日期子场
date
:2016-01-22T10:01:23Z
date.year
:2016
date.month
:01
date.day
:22
date.hour
:10
date.minute
:01
date.second
:23
你就可以自由地聚集在任何这些子领域的得到你想要的东西。
主要使用此解决方案结束。我确实添加了第二个字段来实际存储'日',因为我想保持日期格式符合ISO,但是这绝对简化了解决方案。 –
谢谢。我很高兴这对你有帮助! – Val
这很好,但是如果我想'year','month'等等是关键字呢? –