[Feature] ES query string like search function

[airborne12]

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Description

Introduce search function for inverted index to provide full-text retrieval capability.
It supports boolean logic (AND / OR / NOT), term queries, multi-field search, and lays the foundation for phrase, wildcard, range queries.
This feature brings Doris closer to standard full-text search capabilities similar to Lucene/ES, enabling high-performance text analytics in SQL.

Use case

SELECT * FROM table WHERE search('title:apple OR content:banana');

Related issues

No response

Are you willing to submit PR?

• Yes I am willing to submit a PR!

Code of Conduct

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