Lantao Jin

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Does anyone work on this?

@junyuc25 why you close this PR? And you should remove the `[WIP]` in the title when your PR is ready for review, or committers cannot know when could start to...

Currently, the UNION statement is implemented in legacy engine(v1). It's a bug in legacy engine(v1). I am going to fix this issue in legacy engine, although UNION statement should be...

> @dai-chen I think this #2441 supposed to fix this issue. if yes, could you please close it? The issue is different. I am going to provide a patch.

Thanks for this issue, I am going to fix this.

This is not an issue of SQL plugin. It doesn't work via DSL either: ``` GET sql_like/_search { "query": { "wildcard": { "field1": { "value": "test1*", "case_insensitive": true } }...

The failed query in https://github.com/opensearch-project/sql/issues/2320#issue-1948592886 has 2 problems. 1. `SELECT IF(id=1, 1, 0 ) as id FROM test_bulk1 group by a` is an invalid query which is missing aggregation function....

你好,blackhole尚未正式开源,还属于内部系统,有许多的重构和feature还没有完成,lion-client是点评内部系统,简单的可以认为封装了zookeeper的client api。后面正式开源会去掉所有内部依赖。多谢关注

## PPL Lookup Command Design As implemented in https://github.com/opensearch-project/opensearch-spark/pull/686 the proposed design doc: ## Overview Lookup command enriches your search data by adding or replacing data from a lookup index...

`ip IS '21.8.113.52'` works because that it fallbacks to old SQL engine due to the `IS` is an unknown syntax for new engine. Adding `?format=json` will fallback to old SQL...