📋

Description

MySQL Error 1764 indicates that a query attempted to perform a full-text search operation, typically using `MATCH...AGAINST()`, on a table or specific columns that lack a `FULLTEXT` index. This error prevents the database from executing the full-text search efficiently or at all, as the required index structure for such operations is absent.

💬

Error Message

The table does not have FULLTEXT index to support this query

🔍

Known Causes

3 known causes

⚠️

No FULLTEXT Index Defined

The most common cause is simply forgetting to create a `FULLTEXT` index on the relevant columns of the table intended for full-text search.

⚠️

Incorrect Column Specification

The `MATCH()` function in the query might be referencing columns that do not have a `FULLTEXT` index, even if other columns in the table do.

⚠️

Unsupported Storage Engine

The table might be using a storage engine (e.g., `MEMORY`) that does not support `FULLTEXT` indexes, or the MySQL version is too old for `FULLTEXT` on `InnoDB`.

🛠️

Solutions

3 solutions available

1. Add a FULLTEXT Index to the Table medium

This is the most direct solution: create the missing FULLTEXT index.

1

Identify the table and the columns that need to be searched using FULLTEXT.

2

Connect to your MySQL server using a client (e.g., mysql command-line client, MySQL Workbench).

3

Execute the following SQL command, replacing `your_table_name` with the actual table name and `column1`, `column2` with the columns you want to index.

ALTER TABLE your_table_name ADD FULLTEXT(column1, column2);

4

Verify that the FULLTEXT index has been created by describing the table.

DESCRIBE your_table_name;

2. Modify the Query to Avoid FULLTEXT Search easy

If FULLTEXT search is not strictly necessary, rewrite the query to use standard `LIKE` operations.

1

Examine the SQL query that is causing the error.

2

Identify the part of the query that is attempting to use FULLTEXT search (often involves `MATCH() AGAINST()`).

3

Rewrite the query using the `LIKE` operator. For example, change `MATCH(column) AGAINST('search_term')` to `column LIKE '%search_term%'`.

SELECT * FROM your_table_name WHERE column1 LIKE '%search_term%';

4

Test the modified query to ensure it returns the expected results.

3. Create a New Table with FULLTEXT Index medium

For new tables or significant schema changes, create the table with the FULLTEXT index from the start.

1

Define the schema for your new table, including the columns that will be used for fulltext searching.

2

Use a `CREATE TABLE` statement that includes the `FULLTEXT` index definition. Replace `your_new_table_name`, `id`, `column1`, `column2`, and appropriate data types.

CREATE TABLE your_new_table_name (
  id INT AUTO_INCREMENT PRIMARY KEY,
  column1 VARCHAR(255),
  column2 TEXT,
  FULLTEXT(column1, column2)
);

3

Populate the new table with your data.

4

Update your application to use this new table for queries that require fulltext search.

🔗

Related Errors

5 related errors

MySQL Error 1764: Missing FULLTEXT Index