We have to ensure that it is required to index its data before performing a full-text search on the table's column. Let us learn how we can define a full-text index to perform full-text searches in MySQL. It is enabled by using the IN BOOLEAN MODE modifier. This search mode interprets the search string for complex queries that can include Boolean operators such as less than () operators, the plus (+) and minus (-) sign, subexpressions ("(" and ")"), double quotes (""), an operator that lowers the value's contribution to the results (~) and the wildcards. It is enabled by using the WITH QUERY EXPANSION modifier. It first performs the natural language search that includes a few most relevant documents and then searches again to return the result. It is a modification of the natural language search type that performs the search twice. If no modifier is specified or when the IN NATURAL LANGUAGE MODE modifier is specified, it is enabled by default. This search mode interprets the search string as a literal phrase in natural human language. The full-text search is divided mainly into three types: Natural Language Search Type We can create the full-text indexes for CHAR, VARCHAR, or TEXT columns only.The full-text index uses the same character set and collation for all columns.The argument to AGAINST( ) should be a constant string value during the query execution.We cannot use the '%' wildcard character for full-text searches.The MATCH( ) function parameters must be the same column list from the table that is part of the FULLTEXT index definition unless the MATCH( ) is IN BOOLEAN MODE on a MyISAM table.It does not support partition table also.Full text supports only InnoDB and MyISAM table.Speed: Full-text searching technique is fast that examine the data based on complex search queries.Moderate Index Size: The FULLTEXT index size is relatively small. ![]()
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