Function DatabaseDriver->drop_index__sql

Definitions

sources/database.php

  • Get SQL for deleting a table index.
  • Visibility: public
  • Is abstract?: Yes
  • Is static?: No
  • Is final?: No
  • Returns: string

Parameters

Name Type Passed by reference? Variadic? Default Set Range Description
$table_name ID_TEXT No No required parameter N/A N/A The name of the table the index is on
$index_name ID_TEXT No No required parameter N/A N/A The index name

Returns

  • SQL query to run (null: not supported)
  • Type: ?string
  • Set: N/A
  • Range: N/A

Preview

Code (PHP)

/**
 * Get SQL for deleting a table index.
 *
 * @param  ID_TEXT $table_name The name of the table the index is on
 * @param  ID_TEXT $index_name The index name
 * @return ?string SQL query to run (null: not supported)
 */

abstract public function drop_index__sql(string $table_name, string $index_name) : ?string