Learning Elastic Stack 6.0

Searching from full text

Full-text queries can work on unstructured text fields. These queries are aware of the analysis process. Full-text queries apply the analyzer on the search terms before performing the actual search operation. It finds out the right analyzer to be applied by first checking if a field-level search_analyzer is defined, and then by checking if a field-level analyzer is defined. If analyzers at field level are not defined, it tries the analyzer defined at the index level.

The full-text queries are thus aware of the analysis process on the underlying field and apply the right analysis process before forming the actual search queries. These analysis-aware queries are also called high-level queries. Let us understand how ...