Is full-text indexed?
A full-text index is a special type of index that provides index access for full-text queries against character or binary column data. A full-text index breaks the column into tokens and these tokens make up the index data.
How does MySQL full text search work?
Full-Text Search in MySQL server lets users run full-text queries against character-based data in MySQL tables. You must create a full-text index on the table before you run full-text queries on a table. The full-text index can include one or more character-based columns in the table.
When to use full text index in MySQL?
MySQL will recreate the full-text index whenever data changes within specified columns. MySQL allows you to define the FULLTEXT index by using the CREATE TABLE statement when you create the table or ALTER TABLE or CREATE INDEX statement for the existing tables. Defining fulltext index using CREATE TABLE:
When did MySQL start supporting full text search?
Because of these limitations, MySQL started supported full-text search in 5.6 or later. Followings are some of the advantages of full text search: What is FULLTEXT index in MySQL? You can create FULLTEXT index on a table where you want to run full text search queries. MySQL lets users run full-text queries against character based columns.
What’s the difference between an index and a fulltext index?
Where the other index types are general-purpose, a FULLTEXT index is specialised, in that it serves a narrow purpose: it’s only used for a “full text search” feature. All of these indexes may have more than one column in them.
Which is full text parser does MySQL use?
MySQL provides a built-in full-text ngram parser that supports Chinese, Japanese, and Korean (CJK), and an installable MeCab full-text parser plugin for Japanese. Parsing differences are outlined in Section 12.10.8, “ngram Full-Text Parser”, and Section 12.10.9, “MeCab Full-Text Parser Plugin” .