Description:
------------
Several PostgreSQL specific PDO methods are not documented although they do work fine.

Although PDO aims to hide database specific features behind a common API, sometimes one simply wants to use certain features and for this reason they should not be hidden but rather documented (with a proper warning).

php5-5.4.4$ grep -B2 PHP_METHOD ext/pdo_pgsql/pgsql_driver.c

/* {{{ proto string PDO::pgsqlCopyFromArray(string $table_name , array $rows [, string $delimiter [, string $null_as ] [, string $fields])
   Returns true if the copy worked fine or false if error */
static PHP_METHOD(PDO, pgsqlCopyFromArray)
--
/* {{{ proto string PDO::pgsqlCopyFromFile(string $table_name , string $filename [, string $delimiter [, string $null_as ] [, string $fields])
   Returns true if the copy worked fine or false if error */
static PHP_METHOD(PDO, pgsqlCopyFromFile)
--
/* {{{ proto string PDO::pgsqlCopyToFile(string $table_name , $filename, [string $delimiter [, string $null_as [, string $fields]]])
   Returns true if the copy worked fine or false if error */
static PHP_METHOD(PDO, pgsqlCopyToFile)
--
/* {{{ proto string PDO::pgsqlCopyToArray(string $table_name , [string $delimiter [, string $null_as [, string $fields]]])
   Returns true if the copy worked fine or false if error */
static PHP_METHOD(PDO, pgsqlCopyToArray)
--
/* {{{ proto string PDO::pgsqlLOBCreate()
   Creates a new large object, returning its identifier.  Must be called inside a transaction. */
static PHP_METHOD(PDO, pgsqlLOBCreate)
--
/* {{{ proto resource PDO::pgsqlLOBOpen(string oid [, string mode = 'rb'])
   Opens an existing large object stream.  Must be called inside a transaction. */
static PHP_METHOD(PDO, pgsqlLOBOpen)
--
/* {{{ proto bool PDO::pgsqlLOBUnlink(string oid)
   Deletes the large object identified by oid.  Must be called inside a transaction. */
static PHP_METHOD(PDO, pgsqlLOBUnlink)