public function Schema::indexExists

Same name in this branch
  1. 8.x drupal/core/lib/Drupal/Core/Database/Schema.php \Drupal\Core\Database\Schema::indexExists()
  2. 8.x drupal/core/lib/Drupal/Core/Database/Driver/mysql/Schema.php \Drupal\Core\Database\Driver\mysql\Schema::indexExists()
  3. 8.x drupal/core/lib/Drupal/Core/Database/Driver/sqlite/Schema.php \Drupal\Core\Database\Driver\sqlite\Schema::indexExists()
  4. 8.x drupal/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php \Drupal\Core\Database\Driver\pgsql\Schema::indexExists()

Checks if an index exists in the given table.

Parameters

$table: The name of the table in drupal (no prefixing).

$name: The name of the index in drupal (no prefixing).

Return value

TRUE if the given index exists, otherwise FALSE.

Overrides Schema::indexExists

2 calls to Schema::indexExists()
Schema::addIndex in drupal/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
Add an index.
Schema::dropIndex in drupal/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php
Drop an index.

File

drupal/core/lib/Drupal/Core/Database/Driver/pgsql/Schema.php, line 425
Definition of Drupal\Core\Database\Driver\pgsql\Schema

Class

Schema

Namespace

Drupal\Core\Database\Driver\pgsql

Code

public function indexExists($table, $name) {

  // Details http://www.postgresql.org/docs/8.3/interactive/view-pg-indexes.html
  $index_name = '{' . $table . '}_' . $name . '_idx';
  return (bool) $this->connection
    ->query("SELECT 1 FROM pg_indexes WHERE indexname = '{$index_name}'")
    ->fetchField();
}