diff --git a/go/vt/vtgate/engine/aggregations.go b/go/vt/vtgate/engine/aggregations.go
index d3f2b7a1c82..d6f894bf2e0 100644
--- a/go/vt/vtgate/engine/aggregations.go
+++ b/go/vt/vtgate/engine/aggregations.go
@@ -42,7 +42,7 @@ type AggregateParams struct {
 	WCol   int
 	Type   evalengine.Type
 
-	Alias    string `json:",omitempty"`
+	Alias    string
 	Func     sqlparser.AggrFunc
 	Original *sqlparser.AliasedExpr
 
diff --git a/go/vt/vtgate/engine/hash_join.go b/go/vt/vtgate/engine/hash_join.go
index 6ac34e1ab79..6b9425a35d1 100644
--- a/go/vt/vtgate/engine/hash_join.go
+++ b/go/vt/vtgate/engine/hash_join.go
@@ -44,7 +44,7 @@ type (
 
 		// Left and Right are the LHS and RHS primitives
 		// of the Join. They can be any primitive.
-		Left, Right Primitive `json:",omitempty"`
+		Left, Right Primitive
 
 		// Cols defines which columns from the left
 		// or right results should be used to build the
@@ -53,7 +53,7 @@ type (
 		// For the right query, they're 1, 2, etc.
 		// If Cols is {-1, -2, 1, 2}, it means that
 		// the returned result will be {Left0, Left1, Right0, Right1}.
-		Cols []int `json:",omitempty"`
+		Cols []int
 
 		// The keys correspond to the column offset in the inputs where
 		// the join columns can be found
diff --git a/go/vt/vtgate/engine/join.go b/go/vt/vtgate/engine/join.go
index dc952673cfe..51976396cba 100644
--- a/go/vt/vtgate/engine/join.go
+++ b/go/vt/vtgate/engine/join.go
@@ -35,7 +35,7 @@ type Join struct {
 	Opcode JoinOpcode
 	// Left and Right are the LHS and RHS primitives
 	// of the Join. They can be any primitive.
-	Left, Right Primitive `json:",omitempty"`
+	Left, Right Primitive
 
 	// Cols defines which columns from the left
 	// or right results should be used to build the
@@ -44,12 +44,12 @@ type Join struct {
 	// For the right query, they're 1, 2, etc.
 	// If Cols is {-1, -2, 1, 2}, it means that
 	// the returned result will be {Left0, Left1, Right0, Right1}.
-	Cols []int `json:",omitempty"`
+	Cols []int
 
 	// Vars defines the list of joinVars that need to
 	// be built from the LHS result before invoking
 	// the RHS subqquery.
-	Vars map[string]int `json:",omitempty"`
+	Vars map[string]int
 }
 
 // TryExecute performs a non-streaming exec.
diff --git a/go/vt/vtgate/engine/memory_sort.go b/go/vt/vtgate/engine/memory_sort.go
index d9919045eaf..03e66d0d033 100644
--- a/go/vt/vtgate/engine/memory_sort.go
+++ b/go/vt/vtgate/engine/memory_sort.go
@@ -41,7 +41,7 @@ type MemorySort struct {
 	// TruncateColumnCount specifies the number of columns to return
 	// in the final result. Rest of the columns are truncated
 	// from the result received. If 0, no truncation happens.
-	TruncateColumnCount int `json:",omitempty"`
+	TruncateColumnCount int
 }
 
 // RouteType returns a description of the query routing type used by the primitive.
diff --git a/go/vt/vtgate/engine/ordered_aggregate.go b/go/vt/vtgate/engine/ordered_aggregate.go
index b67483216cf..324e531c4dd 100644
--- a/go/vt/vtgate/engine/ordered_aggregate.go
+++ b/go/vt/vtgate/engine/ordered_aggregate.go
@@ -47,7 +47,7 @@ type OrderedAggregate struct {
 	// TruncateColumnCount specifies the number of columns to return
 	// in the final result. Rest of the columns are truncated
 	// from the result received. If 0, no truncation happens.
-	TruncateColumnCount int `json:",omitempty"`
+	TruncateColumnCount int
 
 	// Input is the primitive that will feed into this Primitive.
 	Input Primitive
diff --git a/go/vt/vtgate/engine/scalar_aggregation.go b/go/vt/vtgate/engine/scalar_aggregation.go
index 929536b9cdf..e33204f5c58 100644
--- a/go/vt/vtgate/engine/scalar_aggregation.go
+++ b/go/vt/vtgate/engine/scalar_aggregation.go
@@ -35,7 +35,7 @@ type ScalarAggregate struct {
 	// TruncateColumnCount specifies the number of columns to return
 	// in the final result. Rest of the columns are truncated
 	// from the result received. If 0, no truncation happens.
-	TruncateColumnCount int `json:",omitempty"`
+	TruncateColumnCount int
 
 	// Input is the primitive that will feed into this Primitive.
 	Input Primitive
diff --git a/go/vt/vtgate/engine/semi_join.go b/go/vt/vtgate/engine/semi_join.go
index de8eeef5a32..f0dd0d09033 100644
--- a/go/vt/vtgate/engine/semi_join.go
+++ b/go/vt/vtgate/engine/semi_join.go
@@ -29,12 +29,12 @@ var _ Primitive = (*SemiJoin)(nil)
 type SemiJoin struct {
 	// Left and Right are the LHS and RHS primitives
 	// of the SemiJoin. They can be any primitive.
-	Left, Right Primitive `json:",omitempty"`
+	Left, Right Primitive
 
 	// Vars defines the list of SemiJoinVars that need to
 	// be built from the LHS result before invoking
 	// the RHS subquery.
-	Vars map[string]int `json:",omitempty"`
+	Vars map[string]int
 }
 
 // TryExecute performs a non-streaming exec.