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-rw-r--r--user_guide_src/source/changelog.rst1
-rw-r--r--user_guide_src/source/database/results.rst20
2 files changed, 21 insertions, 0 deletions
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 6192fecfd..45e6ebc07 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -102,6 +102,7 @@ Release Date: Not Released
- Added PDO support for create_database(), drop_database and drop_table() in :doc:`Database Forge <database/forge>`.
- Added MSSQL, SQLSRV support for optimize_table() in :doc:`Database Utility <database/utilities>`.
- Improved CUBRID support for list_databases() in :doc:`Database Utility <database/utilities>` (until now only the currently used database was returned).
+ - Added unbuffered_row() function for getting a row without prefetching whole result (consume less memory)
- Libraries
diff --git a/user_guide_src/source/database/results.rst b/user_guide_src/source/database/results.rst
index 865345762..ac4fc3733 100644
--- a/user_guide_src/source/database/results.rst
+++ b/user_guide_src/source/database/results.rst
@@ -136,6 +136,26 @@ parameter:
| **$row = $query->next_row('array')**
| **$row = $query->previous_row('array')**
+.. note:: all the functions above will load the whole result into memory (prefetching) use unbuffered_row() for processing large result sets.
+
+unbuffered_row($type)
+=====
+
+This function returns a single result row without prefetching the whole result in memory as row() does.
+If your query has more than one row, it returns the current row and moves the internal data pointer ahead.
+The result is returned as $type could be 'object' (default) or 'array' that will return an associative array.
+
+
+
+ $query = $this->db->query("YOUR QUERY");
+
+ while ($row = $query->unbuffered_row())
+ {
+ echo $row->title;
+ echo $row->name;
+ echo $row->body;
+ }
+
***********************
Result Helper Functions
***********************