public function Connection::prepareQuery

public Connection::prepareQuery($query)

Prepares a query string and returns the prepared statement.

This method caches prepared statements, reusing them when possible. It also prefixes tables names enclosed in curly-braces.

Parameters

$query: The query string as SQL, with curly-braces surrounding the table names.

Return value

\Drupal\Core\Database\StatementInterface A PDO prepared statement ready for its execute() method.

Overrides Connection::prepareQuery

File

core/lib/Drupal/Core/Database/Driver/pgsql/Connection.php, line 170

Class

Connection

PostgreSQL implementation of \Drupal\Core\Database\Connection.

Namespace

Drupal\Core\Database\Driver\pgsql

Code

public function prepareQuery($query) {
  // mapConditionOperator converts LIKE operations to ILIKE for consistency
  // with MySQL. However, Postgres does not support ILIKE on bytea (blobs)
  // fields.
  // To make the ILIKE operator work, we type-cast bytea fields into text.
  // @todo This workaround only affects bytea fields, but the involved field
  //   types involved in the query are unknown, so there is no way to
  //   conditionally execute this for affected queries only.
  return parent::prepareQuery(preg_replace('/ ([^ ]+) +(I*LIKE|NOT +I*LIKE) /i', ' ${1}::text ${2} ', $query));
}