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287bf68 · Dec 31, 2019

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elasticsearch

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ElasticSearch

Lucene:全文检索、倒排索引

核心概念:

  • index: 索引,类似于数据库(database)
  • type: 类型,类似于表(table)
  • document: 文档,类似于数据行(row)
  • field: 字段,类似于数据列(column)
  • mapping: 映射,类似于约束(schema)