WIP on query tests

src/main/kotlin/Parameters.kt

@@ -21,7 +21,11 @@ object Parameters {
     fun nameFields(fields: Collection<Field<*>>): Collection<Field<*>> {
         val name = ParameterName()
         return fields.map {
-            if (it.name.isBlank()) it.withParameterName(name.derive(null)) else it
+            if (it.parameterName.isNullOrEmpty() && !listOf(Op.EXISTS, Op.NOT_EXISTS).contains(it.comparison.op)) {
+                it.withParameterName(name.derive(null))
+            } else {
+                it
+            }
         }
     }
 
@@ -75,7 +79,8 @@ object Parameters {
                                     is Int   -> stmt.setInt(idx, param.value)
                                     is Long  -> stmt.setLong(idx, param.value)
                                     else     -> throw DocumentException(
-                                        "Number parameter must be Byte, Short, Int, or Long (${param.value::class.simpleName})")
+                                        "Number parameter must be Byte, Short, Int, or Long " +
+                                                "(${param.value::class.simpleName})")
                                 }
                             }
                             ParameterType.STRING -> {