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This article mainly introduces the use of SQLite FTS5 tips, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

SQLite FTS5 uses tips

In SQLite, the full-text indexing function exists as an extension module. Using full-text indexing, you can quickly search large chunks of text. SQLite provides three modules: FTS3, FTS4 and FTS5. FTS5 is the latest version of the full-text search module. Here are a few full-text search tips in FTS5.

(1) sort by matching degree: using ORDER BY bm25 (table name) or ORDER BY rank, you can sort search results. The order of sorting is from high to low degree of match.

(2) highlight specific columns: using the highlight function, you can highlight words. Basic syntax form: highlight (table name, column index,',').

(3) extract content summary: using the snippet function, you can get the content fragment containing the specified word, and highlight the word. Syntax form: snippet (table name, column index,', 5).

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