1 files changed, 41 insertions, 7 deletions
diff --git a/phpBB/includes/search/fulltext_postgres.php b/phpBB/includes/search/fulltext_postgres.php
index 1475cc31d0..eeb628b18f 100644
--- a/phpBB/includes/search/fulltext_postgres.php
+++ b/phpBB/includes/search/fulltext_postgres.php
@@ -343,7 +343,7 @@ class phpbb_search_fulltext_postgres extends phpbb_search_base
 	* @param	int			$per_page			number of ids each page is supposed to contain
 	* @return	boolean|int						total number of results
 	*/
-	public function keyword_search($type, $fields, $terms, $sort_by_sql, $sort_key, $sort_dir, $sort_days, $ex_fid_ary, $m_approve_fid_ary, $topic_id, $author_ary, $author_name, &$id_ary, $start, $per_page)
+	public function keyword_search($type, $fields, $terms, $sort_by_sql, $sort_key, $sort_dir, $sort_days, $ex_fid_ary, $m_approve_fid_ary, $topic_id, $author_ary, $author_name, &$id_ary, &$start, $per_page)
 	{
 		// No keywords? No posts
 		if (!$this->search_query)
@@ -371,6 +371,11 @@ class phpbb_search_fulltext_postgres extends phpbb_search_base
 			implode(',', $author_ary)
 		)));
 
+		if ($start < 0)
+		{
+			$start = 0;
+		}
+
 		// try reading the results from cache
 		$result_count = 0;
 		if ($this->obtain_ids($search_key, $result_count, $id_ary, $start, $per_page, $sort_dir) == SEARCH_RESULT_IN_CACHE)
@@ -495,11 +500,6 @@ class phpbb_search_fulltext_postgres extends phpbb_search_base
 
 		$id_ary = array_unique($id_ary);
 
-		if (!sizeof($id_ary))
-		{
-			return false;
-		}
-
 		// if the total result count is not cached yet, retrieve it from the db
 		if (!$result_count)
 		{
@@ -518,6 +518,21 @@ class phpbb_search_fulltext_postgres extends phpbb_search_base
 
 		$this->db->sql_transaction('commit');
 
+		if ($start >= $result_count)
+		{
+			$start = floor(($result_count - 1) / $per_page) * $per_page;
+
+			$result = $this->db->sql_query_limit($sql, $this->config['search_block_size'], $start);
+
+			while ($row = $this->db->sql_fetchrow($result))
+			{
+				$id_ary[] = $row[$field];
+			}
+			$this->db->sql_freeresult($result);
+
+			$id_ary = array_unique($id_ary);
+		}
+
 		// store the ids, from start on then delete anything that isn't on the current page because we only need ids for one page
 		$this->save_ids($search_key, implode(' ', $this->split_words), $author_ary, $result_count, $id_ary, $start, $sort_dir);
 		$id_ary = array_slice($id_ary, 0, (int) $per_page);
@@ -544,7 +559,7 @@ class phpbb_search_fulltext_postgres extends phpbb_search_base
 	* @param	int			$per_page			number of ids each page is supposed to contain
 	* @return	boolean|int						total number of results
 	*/
-	public function author_search($type, $firstpost_only, $sort_by_sql, $sort_key, $sort_dir, $sort_days, $ex_fid_ary, $m_approve_fid_ary, $topic_id, $author_ary, $author_name, &$id_ary, $start, $per_page)
+	public function author_search($type, $firstpost_only, $sort_by_sql, $sort_key, $sort_dir, $sort_days, $ex_fid_ary, $m_approve_fid_ary, $topic_id, $author_ary, $author_name, &$id_ary, &$start, $per_page)
 	{
 		// No author? No posts
 		if (!sizeof($author_ary))
@@ -568,6 +583,11 @@ class phpbb_search_fulltext_postgres extends phpbb_search_base
 			$author_name,
 		)));
 
+		if ($start < 0)
+		{
+			$start = 0;
+		}
+
 		// try reading the results from cache
 		$result_count = 0;
 		if ($this->obtain_ids($search_key, $result_count, $id_ary, $start, $per_page, $sort_dir) == SEARCH_RESULT_IN_CACHE)
@@ -710,6 +730,20 @@ class phpbb_search_fulltext_postgres extends phpbb_search_base
 
 		$this->db->sql_transaction('commit');
 
+		if ($start >= $result_count)
+		{
+			$start = floor(($result_count - 1) / $per_page) * $per_page;
+
+			$result = $this->db->sql_query_limit($sql, $this->config['search_block_size'], $start);
+			while ($row = $this->db->sql_fetchrow($result))
+			{
+				$id_ary[] = (int) $row[$field];
+			}
+			$this->db->sql_freeresult($result);
+
+			$id_ary = array_unique($id_ary);
+		}
+
 		if (sizeof($id_ary))
 		{
 			$this->save_ids($search_key, '', $author_ary, $result_count, $id_ary, $start, $sort_dir);