@@ -116,7 +116,7 @@
         {
           class: "Decimal",
           maxPrecisionDigits: 38, nDecimalDigits: 4, friendlyType: "BigDecimal",
-          typeParams: [ {name: "scale", type: "int"}, { name: "precision", type: "int"}],
+          typeParams: [ {name: "precision", type: "int"}, { name: "scale", type: "int"}],
           arrowType: "org.apache.arrow.vector.types.pojo.ArrowType.Decimal",
           fields: [{name: "start", type: "int"}, {name: "buffer", type: "ArrowBuf"}]
         }
 
@@ -593,7 +593,6 @@ public void setSkipNull(int index, Nullable${minor.class}Holder holder){
       values.getMutator().set(index, holder);
     }
 
-
     public void set(int index, Nullable${minor.class}Holder holder){
       final ${valuesName}.Mutator valuesMutator = values.getMutator();
       <#if type.major == "VarLen">
@@ -666,11 +665,8 @@ public void setSafe(int index, ${minor.class}Holder value) {
       <#if type.major == "VarLen">lastSet = index;</#if>
     }
 
-    <#if !(type.major == "VarLen" || minor.class == "IntervalYear" || minor.class == "IntervalDay")>
+    <#if !(type.major == "VarLen" || minor.class == "IntervalDay")>
     public void setSafe(int index, ${minor.javaType!type.javaType} value) {
-      <#if type.major == "VarLen">
-      fillEmpties(index);
-      </#if>
       bits.getMutator().setSafeToOne(index);
       values.getMutator().setSafe(index, value);
       setCount++;
 
@@ -45,6 +45,9 @@ public class TestDecimalVector {
   public void test() {
     BufferAllocator allocator = new RootAllocator(Integer.MAX_VALUE);
     NullableDecimalVector decimalVector = TestUtils.newVector(NullableDecimalVector.class, "decimal", new ArrowType.Decimal(10, scale), allocator);
+    try (NullableDecimalVector oldConstructor = new NullableDecimalVector("decimal", allocator, 10, scale);) {
+      assertEquals(decimalVector.getField().getType(), oldConstructor.getField().getType());
+    }
     decimalVector.allocateNew();
     BigDecimal[] values = new BigDecimal[intValues.length];
     for (int i = 0; i < intValues.length; i++) {
Original file line number	Diff line number	Diff line change
`@@ -116,7 +116,7 @@`
`116`	`116`	`{`
`117`	`117`	`class: "Decimal",`
`118`	`118`	`maxPrecisionDigits: 38, nDecimalDigits: 4, friendlyType: "BigDecimal",`
`119`		`- typeParams: [ {name: "scale", type: "int"}, { name: "precision", type: "int"}],`
	`119`	`+ typeParams: [ {name: "precision", type: "int"}, { name: "scale", type: "int"}],`
`120`	`120`	`arrowType: "org.apache.arrow.vector.types.pojo.ArrowType.Decimal",`
`121`	`121`	`fields: [{name: "start", type: "int"}, {name: "buffer", type: "ArrowBuf"}]`
`122`	`122`	`}`