Andrei Sereda created CALCITE-2376:
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Summary: migrate elastic adapters to (low-level) rest client
Key: CALCITE-2376
URL: https://issues.apache.org/jira/browse/CALCITE-2376
Project: Calcite
Issue Type: Improvement
Components: elasticsearch-adapter
Reporter: Andrei Sereda
Assignee: Julian Hyde
This is an effort to migrate existing Elastic Search adapters to use [low-level
rest
client|https://www.elastic.co/guide/en/elasticsearch/client/java-rest/current/java-rest-low.html].
Existing [native transport
client|https://www.elastic.co/guide/en/elasticsearch/client/java-api/6.3/client.html]
has been deprecated in 7.0 (to be removed in 8.x).
Another advantage of low-level client is that it is compatible with any ES
server version and has few (non-core) dependencies. Part of this improvement,
both ES2 and ES5 adapters will be unified and reside under new maven module
{{elasticsearch}} (contrary to separate {{elasticsearch2}} and
{{elasticsearch5}}).
h3. Breaking changes
Using new {{artifactId}} and {{SchemaFactory}} implementation will force
clients to change their configuration and dependencies. No other breaking
changes are expected.
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