SqliteAlterTableAlterColumnDropDefaultConvertor Class — drizzle-orm Architecture

Source Code

drizzle-kit/src/sqlgenerator.ts lines 3053–3071

class SqliteAlterTableAlterColumnDropDefaultConvertor extends Convertor {
	can(statement: JsonStatement, dialect: Dialect): boolean {
		return (
			statement.type === 'alter_table_alter_column_drop_default'
			&& dialect === 'sqlite'
		);
	}

	convert(statement: JsonAlterColumnDropDefaultStatement) {
		return (
			'/*\n SQLite does not support "Drop default from column" out of the box, we do not generate automatic migration for that, so it has to be done manually'
			+ '\n Please refer to: https://www.techonthenet.com/sqlite/tables/alter_table.php'
			+ '\n                  https://www.sqlite.org/lang_altertable.html'
			+ '\n                  https://stackoverflow.com/questions/2083543/modify-a-columns-type-in-sqlite3'
			+ "\n\n Due to that we don't generate migration automatically and it has to be done manually"
			+ '\n*/'
		);
	}
}