2 files changed, 13 insertions, 0 deletions
diff --git a/storage/myisam/ha_myisam.cc b/storage/myisam/ha_myisam.cc
index 87de58076cd..2ba62d03c6b 100644
--- a/storage/myisam/ha_myisam.cc
+++ b/storage/myisam/ha_myisam.cc
@@ -1788,6 +1788,18 @@ int ha_myisam::delete_all_rows()
   return mi_delete_all_rows(file);
 }
 
+
+/*
+  Intended to support partitioning.
+  Allows a particular partition to be truncated.
+*/
+
+int ha_myisam::truncate()
+{
+  int error= delete_all_rows();
+  return error ? error : reset_auto_increment(0);
+}
+
 int ha_myisam::reset_auto_increment(ulonglong value)
 {
   file->s->state.auto_increment= value;
diff --git a/storage/myisam/ha_myisam.h b/storage/myisam/ha_myisam.h
index 1a8246ae882..46b732512ac 100644
--- a/storage/myisam/ha_myisam.h
+++ b/storage/myisam/ha_myisam.h
@@ -107,6 +107,7 @@ class ha_myisam: public handler
   int reset(void);
   int external_lock(THD *thd, int lock_type);
   int delete_all_rows(void);
+  int truncate();
   int reset_auto_increment(ulonglong value);
   int disable_indexes(uint mode);
   int enable_indexes(uint mode);