求助：我建mapping的时候time字段明明是date类型，最报错说time字段最好设置Set fielddata=true，但会占用大量内存，求助求助
Elasticsearch | 作者 xiangxiaolu | 发布于2018年12月25日 | 阅读数：7967
Caused by: org.elasticsearch.common.io.stream.NotSerializableExceptionWrapper: : Fielddata is disabled on text fields by default. Set fielddata=true on [time] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory. Alternatively use a keyword field instead.
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zz_hello
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GET /index/_mapping
查看到底是否是date类型。
zz_hello
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hm
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xiangxiaolu - 菜鸟
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