*: non-unique index doesn't need store value, write a '0' to reduce s…

…pace (pingcap#2218)
pananc · Dec 9, 2016 · d5cf23a · d5cf23a
1 parent aca4151
commit d5cf23a
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/table/tables/index.go b/table/tables/index.go
@@ -165,8 +165,8 @@ func (c *index) Create(rm kv.RetrieverMutator, indexedValues []types.Datum, h in
 		return 0, errors.Trace(err)
 	}
 	if !distinct {
-		// TODO: reconsider value
-		err = rm.Set(key, []byte("timestamp?"))
+		// non-unique index doesn't need store value, write a '0' to reduce space
+		err = rm.Set(key, []byte{'0'})
 		return 0, errors.Trace(err)
 	}