full-text-search - msearch 不能与 bool 一起使用

Question

Elasticsearch 版本 - .90.1

以下效果完美。

cat names
{"index":"events","type":"news"}
{"query":{"term":{"Type":"MarketEvent"}}}
{"query":{"term":{"Type":"MarketEvent"}}}

curl -XGET 'http://localhost:9200/_msearch'  --data-binary @names

以下也适用

{"index":"events","type":"news"}
{"query":{"bool":{"must":[{"query_string":{"query":"*","fields":["Events.Event"],"default_operator":"AND"}},{"term":{"Type":"MarketEvent"}}]}}}

但是超过 1 个 bool 的查询不起作用 -

cat names
{"index":"events","type":"news"}
{"query":{"bool":{"must":[{"query_string":{"query":"*","fields":["Events.Event"],"default_operator":"AND"}},{"term":{"Type":"MarketEvent"}}]}}}
{"query":{"bool":{"must":[{"query_string":{"query":"*","fields":["Events.Event"],"default_operator":"AND"}},{"term":{"Type":"MarketEvent"}}]}}}

curl -XGET 'http://localhost:9200/_msearch'  --data-binary @names
{"error":"must doesn't support arrays"}

我在日志中没有看到任何相关日志(也不在 Debug模式下) 这是一个错误吗？

Answer 1

_msearch 查询应采用以下格式:

header\n
body\n
header\n
body\n

在第一个和最后一个查询中，第二个 header 丢失。仅由于 header 的解析方式，第一个查询不会生成错误。为了使此查询正常工作，names 文件应更改为

{"index":"events","type":"news"}
{"query":{"bool":{"must":[{"query_string":{"query":"*","fields":["Events.Event"],"default_operator":"AND"}},{"term":{"Type":"MarketEvent"}}]}}}
{"index":"events","type":"news"}
{"query":{"bool":{"must":[{"query_string":{"query":"*","fields":["Events.Event"],"default_operator":"AND"}},{"term":{"Type":"MarketEvent"}}]}}}