Fix some docblocks

Author: driesvints

src/Illuminate/Database/DBAL/TimestampType.php

@@ -11,8 +11,6 @@ class TimestampType extends Type implements PhpDateTimeMappingType
 {
     /**
      * {@inheritdoc}
-     *
-     * @return string
      */
     public function getSQLDeclaration(array $fieldDeclaration, AbstractPlatform $platform)
     {
@@ -89,8 +87,6 @@ protected function getSQLitePlatformSQLDeclaration(array $fieldDeclaration)
 
     /**
      * {@inheritdoc}
-     *
-     * @return string
      */
     public function getName()
     {

src/Illuminate/Database/Query/Builder.php

@@ -847,7 +847,6 @@ protected function invalidOperator($operator)
      * @param  mixed  $operator
      * @param  mixed  $value
      * @return $this
-     *               {@inheritdoc}
      */
     public function orWhere($column, $operator = null, $value = null)
     {
@@ -1829,9 +1828,14 @@ protected function addDynamic($segment, $connector, $parameters, $index)
         $this->where(Str::snake($segment), '=', $parameters[$index], $bool);
     }
 
-    /**
-     * {@inheritdoc}
-     */
+     /**
+      * Add a "where fulltext" clause to the query.
+      *
+      * @param  string|string[]  $columns
+      * @param  string  $value
+      * @param  string  $boolean
+      * @return $this
+      */
     public function whereFullText($columns, $value, array $options = [], $boolean = 'and')
     {
         $type = 'Fulltext';
@@ -1845,9 +1849,13 @@ public function whereFullText($columns, $value, array $options = [], $boolean =
         return $this;
     }
 
-    /**
-     * {@inheritdoc}
-     */
+     /**
+      * Add a "or where fulltext" clause to the query.
+      *
+      * @param  string|string[]  $columns
+      * @param  string  $value
+      * @return $this
+      */
     public function orWhereFullText($columns, $value, array $options = [])
     {
         return $this->whereFulltext($columns, $value, $options, 'or');

src/Illuminate/Database/Query/Grammars/PostgresGrammar.php

@@ -22,7 +22,7 @@ class PostgresGrammar extends Grammar
     ];
 
     /**
-     * {@inheritdoc}
+     * Compile a basic where clause.
      *
      * @param  \Illuminate\Database\Query\Builder  $query
      * @param  array  $where