bool exists() Determine if any rows exist for the current query.

$this havingRaw(string $sql, array $bindings = array(), string $boolean = 'and')

Grammar getGrammar()

mixed aggregate(string $function, array $columns = array('*')) Execute

bool updateOrInsert(array $attributes, array $values = array()) Insert

Builder class Builder (

string parameterize(array $values) Create query parameter place-holders

$this addNestedWhereQuery(Builder|

array prepareBindingsForUpdate(array $bindings, array $values) Prepare

PostgresGrammar class PostgresGrammar extends