Index is dependent on column

Reports cases when you try to drop columns from indexed tables. This inspection is available in Microsoft SQL Server and Sybase ASE.

Example (Microsoft SQL Server):

CREATE TABLE test_index
(
col  INT NOT NULL,
col2 INT NOT NULL,
col3 INT NOT NULL UNIQUE,
col4 VARCHAR(200)
);

CREATE UNIQUE INDEX aaaa ON test_index (col, col2);

ALTER TABLE test_index
DROP COLUMN col;

You cannot delete the col column because it is in the indexed table. To delete the column, you need to delete the aaaa index first (for example, DROP INDEX aaaa).

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

SqlDropIndexedColumnInspection

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | SQL

Availability

By default bundled with: CLion 2024.1, DataGrip 2024.1, DataSpell 2024.1, GoLand 2024.1, IntelliJ IDEA 2024.1, JetBrains Rider 2023.3, PhpStorm 2024.1, PyCharm 2024.1, Qodana for .NET 2023.3, Qodana for Go 2024.1, Qodana for JVM 2024.1, Qodana for PHP 2024.1, Qodana for Ruby 2024.1, RubyMine 2024.1,
Can be installed with plugin: Database Tools and SQL, 241.SNAPSHOT

Last modified: 18 June 2024