Support simulation of date/dateime placeholders (#244)

Co-authored-by: Markus Staab <[email protected]>

src/QueryReflection/MysqliQueryReflector.php

@@ -31,6 +31,8 @@ final class MysqliQueryReflector implements QueryReflector
 
     public const MYSQL_HOST_NOT_FOUND = 2002;
 
+    public const DATE_FORMAT = 'Y-m-d';
+
     private const MAX_CACHE_SIZE = 50;
 
     /**

src/QueryReflection/QuerySimulation.php

@@ -75,7 +75,10 @@ public static function simulateParamValueType(Type $paramType, bool $preparedPar
         if ($stringType->isSuperTypeOf($paramType)->yes() || $paramType instanceof ObjectType && $paramType->isInstanceOf(Stringable::class)->yes()) {
             // in a prepared context, regular strings are fine
             if (true === $preparedParam) {
-                return '1';
+                // returns a string in date-format, so in case the simulated value is used against a date/datetime column
+                // we won't run into a sql error.
+                // XX in case we would have a proper sql parser, we could feed schema-type-dependent default values in case of strings.
+                return date(MysqliQueryReflector::DATE_FORMAT);
             }
 
             // plain string types can contain anything.. we cannot reason about it