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推荐使用es2csv 工具。

命令行实用程序，用Python编写，用于用Lucene查询语法或查询DSL语法查询Elasticsearch，并将结果作为文档导出到CSV文件中。该工具可以在多个索引中查询批量文档，并且只获取选定的字段，这减少了查询的执行时间。

使用样例：

docker pull demonslh/es2csvdocker run --rm --network=host -v /root/es2csv:/data demonslh/es2csv es2csv -i t_user -q '*' -o database.csv#### 参数
es2csv [-h] -q QUERY [-u URL] [-a AUTH] [-i INDEX [INDEX ...]][-D DOC_TYPE [DOC_TYPE ...]] [-t TAGS [TAGS ...]] -o FILE[-f FIELDS [FIELDS ...]] [-S FIELDS [FIELDS ...]] [-d DELIMITER][-m INTEGER] [-s INTEGER] [-k] [-r] [-e] [--verify-certs][--ca-certs CA_CERTS] [--client-cert CLIENT_CERT][--client-key CLIENT_KEY] [-v] [--debug]Arguments:-q, --query QUERY                        Query string in Lucene syntax.               [required]-o, --output-file FILE                   CSV file location.                           [required]-u, --url URL                            Elasticsearch host URL. Default is http://localhost:9200.-a, --auth                               Elasticsearch basic authentication in the form of username:password.-i, --index-prefixes INDEX [INDEX ...]   Index name prefix(es). Default is ['logstash-*'].-D, --doc-types DOC_TYPE [DOC_TYPE ...]  Document type(s).-t, --tags TAGS [TAGS ...]               Query tags.-f, --fields FIELDS [FIELDS ...]         List of selected fields in output. Default is ['_all'].-S, --sort FIELDS [FIELDS ...]           List of <field>:<direction> pairs to sort on. Default is [].-d, --delimiter DELIMITER                Delimiter to use in CSV file. Default is ",".-m, --max INTEGER                        Maximum number of results to return. Default is 0.-s, --scroll-size INTEGER                Scroll size for each batch of results. Default is 100.-k, --kibana-nested                      Format nested fields in Kibana style.-r, --raw-query                          Switch query format in the Query DSL.-e, --meta-fields                        Add meta-fields in output.--verify-certs                           Verify SSL certificates. Default is False.--ca-certs CA_CERTS                      Location of CA bundle.--client-cert CLIENT_CERT                Location of Client Auth cert.--client-key CLIENT_KEY                  Location of Client Cert Key.-v, --version                            Show version and exit.--debug                                  Debug mode on.-h, --help                               show this help message and exit

源码地址：GitHub - just3019/es2csv: Export from an Elasticsearch into a CSV file