1.update_by_query
PUT myindex/_doc/1 { "name":"a" } POST myindex/_update_by_query { "script":{ "lang":"painless", "inline": "ctx._source.newfield=‘newvalue‘" } } GET myindex/_mapping
update_by_query ingest pipeline
原文：https://www.cnblogs.com/hixiaowei/p/12182330.html