diff --git a/core/src/main/java/org/polypheny/db/type/entity/PolyBinary.java b/core/src/main/java/org/polypheny/db/type/entity/PolyBinary.java
index 3e58392c98..82fe643528 100644
--- a/core/src/main/java/org/polypheny/db/type/entity/PolyBinary.java
+++ b/core/src/main/java/org/polypheny/db/type/entity/PolyBinary.java
@@ -31,6 +31,7 @@
 import java.util.BitSet;
 import java.util.Objects;
 import lombok.Value;
+import org.apache.calcite.avatica.util.Base64;
 import org.apache.calcite.avatica.util.ByteString;
 import org.apache.calcite.linq4j.tree.Expression;
 import org.apache.calcite.linq4j.tree.Expressions;
@@ -125,6 +126,10 @@ public String toHexString() {
         return out;
     }
 
+    public String as64String() {
+        return Base64.encodeBytes( value );
+    }
+
 
     @Override
     public @NotNull PolyString asString() {
diff --git a/plugins/cottontail-adapter/src/main/java/org/polypheny/db/adapter/cottontail/util/CottontailTypeUtil.java b/plugins/cottontail-adapter/src/main/java/org/polypheny/db/adapter/cottontail/util/CottontailTypeUtil.java
index e61ea301d3..c35a3ca997 100644
--- a/plugins/cottontail-adapter/src/main/java/org/polypheny/db/adapter/cottontail/util/CottontailTypeUtil.java
+++ b/plugins/cottontail-adapter/src/main/java/org/polypheny/db/adapter/cottontail/util/CottontailTypeUtil.java
@@ -296,13 +296,21 @@ public static CottontailGrpc.Literal toData( PolyValue value, PolyType actualTyp
                 }
                 break;
             }
+            case VARBINARY:
+                if ( value.isBinary() ) {
+                    return builder.setStringData( value.asBinary().as64String() ).build();
+                }
+                break;
             case FILE:
             case IMAGE:
             case AUDIO:
             case VIDEO:
                 if ( value.isBlob() ) {
                     return builder.setStringData( value.asBlob().as64String() ).build();
+                } else if ( value.isBinary() ) {
+                    return builder.setStringData( value.asBinary().as64String() ).build();
                 }
+                break;
         }
 
         log.error( "Conversion not possible! value: {}, type: {}", value.getClass().getCanonicalName(), actualType );
@@ -515,4 +523,4 @@ private static Expression knnCallDistance( RexNode node, ParameterExpression dyn
         throw new GenericRuntimeException( "Argument is neither an array call nor a dynamic parameter" );
     }
 
-}
\ No newline at end of file
+}