renames

Author: robert3005

java/vortex-jni/src/main/java/dev/vortex/api/expressions/IsNull.java

@@ -80,7 +80,7 @@ public Optional<byte[]> metadata() {
 
     @Override
     public String toString() {
-        return "is_null(" + child + ")";
+        return "vortex.is_null(" + child + ")";
     }
 
     /**

java/vortex-jni/src/main/java/dev/vortex/api/proto/Expressions.java

@@ -56,7 +56,7 @@ public static Expression deserialize(ExprProtos.Expr expr) {
                 return Literal.parse(metadata, children);
             case "vortex.not":
                 return Not.parse(metadata, children);
-            case "is_null":
+            case "vortex.is_null":
                 return IsNull.parse(metadata, children);
             default:
                 return new Unknown(expr.getId(), children, expr.getMetadata().toByteArray());