plan: remove unneeded lines of code (pingcap#5749)

m4ver1k · Jan 30, 2018 · d978c83 · d978c83
1 parent fdd0e6d
commit d978c83
Showing 1 changed file with 0 additions and 4 deletions.
diff --git a/plan/column_pruning.go b/plan/column_pruning.go
@@ -164,10 +164,6 @@ func (ds *DataSource) PruneColumns(parentUsedCols []*expression.Column) {
 	}
 }
 
-// PruneColumns implements LogicalPlan interface.
-func (p *LogicalTableDual) PruneColumns(_ []*expression.Column) {
-}
-
 // PruneColumns implements LogicalPlan interface.
 func (p *LogicalExists) PruneColumns(parentUsedCols []*expression.Column) {
 	p.children[0].PruneColumns(nil)