mixed value(string $column) Get a single column's value from the first

bool chunk(int $count, callable $callback) Chunk the results of the query

PostgresGrammar class PostgresGrammar extends

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

LengthAwarePaginator

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string parameter(mixed $value) Get the appropriate query parameter place-holder

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$this setTablePrefix(string $prefix) Set the grammar's table prefix.

Builder lockForUpdate()