elasticsearch - 升级到Elasticsearch 5.2

Question

我有以下在ES 1.7中可用但在5.2中失败的旧版映射代码。失败的原因是multi_field和path。该文档提到这些字段已被删除，但是除了建议使用copy_to以外，无法提供其他补救措施。有人可以提供更多详细信息吗？

{
"sample": {
    "_parent": {
        "type": "security"
    },
    "properties": {
        "securityDocumentId": {
            "type": "string",
            "index": "not_analyzed",
            "include_in_all": false
        },
        "id": {
            "type": "multi_field",
            "path": "full",
            "fields": {
                "indexer_sample_id": {
                    "type": "string"
                },
                "id": {
                    "type": "string",
                    "include_in_all": false
                }
            }
        },
        "sampleid": {
            "type": "multi_field",
            "path": "just_name",
            "fields": {
                "sampleid": {
                    "type": "string",
                    "analyzer": "my_analyzer"
                },
                "sample.sampleid": {
                    "type": "string",
                    "analyzer": "my_analyzer"
                },
                "sample.sampleid.sort": {
                    "type": "string",
                    "analyzer": "case_insensitive_sort_analyzer"
                },
                "sample.sampleid.name.autocomplete": {
                    "type": "string",
                    "analyzer": "autocomplete"
                }
            }
        },

Answer 1

path选项的默认值为full，因此您可以省去它，因为它在2.0中已被弃用。 path值just_name不再存在，您必须通过其完整路径名引用所有字段。可以很简单地重写多字段:

{
"sample": {
    "_parent": {
        "type": "security"
    },
    "properties": {
        "securityDocumentId": {
            "type": "keyword",
            "include_in_all": false
        },
        "id": {
            "type": "text",
            "fields": {
                "indexer_sample_id": {
                    "type": "text"
                },
                "id": {
                    "type": "text",
                    "include_in_all": false
                }
            }
        },
        "sampleid": {
            "type": "text",
            "fields": {
                "sampleid": {
                    "type": "text",
                    "analyzer": "my_analyzer"
                },
                "sample.sampleid": {
                    "type": "text",
                    "analyzer": "my_analyzer"
                },
                "sample.sampleid.sort": {
                    "type": "text",
                    "analyzer": "case_insensitive_sort_analyzer"
                },
                "sample.sampleid.name.autocomplete": {
                    "type": "text",
                    "analyzer": "autocomplete"
                }
            }
        },

请注意，我不确定 id子字段的有用性和附加值