Fix max_length check (#25208)

Signed-off-by: xige-16 <xi.ge@zilliz.com>

internal/proxy/util.go

@@ -294,7 +294,7 @@ func validateMaxLengthPerRow(collectionName string, field *schemapb.FieldSchema)
 	exist := false
 	for _, param := range field.TypeParams {
 		if param.Key != maxVarCharLengthKey {
-			return fmt.Errorf("type param key(max_length) should be specified for varChar field, not %s", param.Key)
+			continue
 		}
 
 		maxLengthPerRow, err := strconv.ParseInt(param.Value, 10, 64)