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 (

$this addNestedWhereQuery(Builder|

PostgresGrammar class PostgresGrammar extends

$this addSelect(array|mixed $column) Add a new select column to the query

Builder|