function Schema::dropUniqueKey
Drop a unique key.
Parameters
$table: The table to be altered.
$name: The name of the key.
Return value
bool TRUE if the key was successfully dropped, FALSE if there was no key by that name to begin with.
Overrides Schema::dropUniqueKey
File
-
core/
modules/ pgsql/ src/ Driver/ Database/ pgsql/ Schema.php, line 828
Class
- Schema
- PostgreSQL implementation of \Drupal\Core\Database\Schema.
Namespace
Drupal\pgsql\Driver\Database\pgsqlCode
public function dropUniqueKey($table, $name) {
if (!$this->constraintExists($table, $name . '__key')) {
return FALSE;
}
$this->connection
->query('ALTER TABLE {' . $table . '} DROP CONSTRAINT ' . $this->ensureIdentifiersLength($table, $name, 'key'));
$this->resetTableInformation($table);
return TRUE;
}
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