MDL-14679 fixing more incorrect return types

lib/dml/pgsql_native_moodle_database.php

@@ -647,7 +647,7 @@ class pgsql_native_moodle_database extends moodle_database {
      * @param array $params array of sql parameters
      * @param int $limitfrom return a subset of records, starting at this point (optional, required if $limitnum is set).
      * @param int $limitnum return a subset comprising this many records (optional, required if $limitfrom is set).
-     * @return mixed an array of objects, or empty array if no records were found
+     * @return array of objects, or empty array if no records were found
      * @throws dml_exception if error
      */
     public function get_records_sql($sql, array $params=null, $limitfrom=0, $limitnum=0) {
@@ -705,7 +705,7 @@ class pgsql_native_moodle_database extends moodle_database {
      *
      * @param string $sql The SQL query
      * @param array $params array of sql parameters
-     * @return mixed array of values
+     * @return array of values
      * @throws dml_exception if error
      */
     public function get_fieldset_sql($sql, array $params=null) {
@@ -728,7 +728,7 @@ class pgsql_native_moodle_database extends moodle_database {
      * @param bool $returnit return it of inserted record
      * @param bool $bulk true means repeated inserts expected
      * @param bool $customsequence true if 'id' included in $params, disables $returnid
-     * @return true or new id
+     * @return bool|int true or new id
      * @throws dml_exception if error
      */
     public function insert_record_raw($table, $params, $returnid=true, $bulk=false, $customsequence=false) {
@@ -791,7 +791,7 @@ class pgsql_native_moodle_database extends moodle_database {
      * @param string $table The database table to be inserted into
      * @param object $data A data object with values for one or more fields in the record
      * @param bool $returnid Should the id of the newly created record entry be returned? If this option is not requested then true/false is returned.
-     * @return true or new id
+     * @return bool|int true or new id
      * @throws dml_exception if error
      */
     public function insert_record($table, $dataobject, $returnid=true, $bulk=false) {