public Schema::indexExists($table, $name)

The count query that will be used for this pager. Type:

public Schema::fieldExists($table, $column)

MySQL implementation of \Drupal\Core

public SelectInterface::leftJoin($table, $alias = NULL, $condition

Holds the current fetch style (which will be used by the next fetch). Type: int See also

abstract Connection::queryTemporary($query, array $args = array(), array $options

public ConditionInterface::isNotNull($field)

The connection object on which to run this query. Type:

The key representing this connection. The key is a unique string which identifies a database connection. A connection can be a single server