如何在弹性搜索脚本中从日期获取时间戳
How to get timestamp from date in elastic search script
如标题所示，我想从弹性搜索无痛脚本中的日期类型获取时间戳（作为数字）。以下尝试无效：doc["date_field"].value、doc["date_field"].date.getMillis().
根据 Painless docs，您应该能够像这样访问自纪元以来的毫秒数：doc.date_field.millis。
Date fields are exposed as ReadableDateTime, so they support methods
like getYear, getDayOfWeek or e.g. getting milliseconds since epoch
with getMillis. To use these in a script, leave out the get prefix and
continue with lowercasing the rest of the method name.
您应该也可以使用 ReadableDateTime 中的方法。 https://www.elastic.co/guide/en/elasticsearch/painless/6.4/painless-api-reference.html#painless-api-reference-org-joda-time-ReadableDateTime
如标题所示，我想从弹性搜索无痛脚本中的日期类型获取时间戳（作为数字）。以下尝试无效：doc["date_field"].value、doc["date_field"].date.getMillis().
根据 Painless docs，您应该能够像这样访问自纪元以来的毫秒数：doc.date_field.millis。
Date fields are exposed as
ReadableDateTime, so they support methods likegetYear,getDayOfWeekor e.g. getting milliseconds since epoch withgetMillis. To use these in a script, leave out the get prefix and continue with lowercasing the rest of the method name.
您应该也可以使用 ReadableDateTime 中的方法。 https://www.elastic.co/guide/en/elasticsearch/painless/6.4/painless-api-reference.html#painless-api-reference-org-joda-time-ReadableDateTime