Please put your hands together! Elasticsearch SQL is easy, right? You should now know what Elasticsearch SQL is. In addition, you are now familiar with the semantics of Elasticsearch SQL. We performed a few SQL commands by using the elasticsearch-sql-cli script. We demonstrated how to use the Kibana DevTools console to perform SQL REST API with different SQL statements and, finally, we provided some programming instructions to set up the Elasticsearch SQL JDBC driver and used the JDBC connection to perform the request and handle the result.
In the next chapter, we will learn about Elasticsearch plugin management to enhance its core functionality. We will focus on the analysis plugins. We will use the ICU Analysis plugin and the Smart Chinese Analysis plugin as examples of enhancing the text analyzer for mixed Chinese-English texts.