Merge pull request #22 from harrygulliford/fix-stored-procedure-expre…

…ssions

Fix expressions in stored procedures

src/Query/Builder.php

@@ -17,6 +17,12 @@ public function fromProcedure(string $procedure, array $values = [])
     {
         $compiledProcedure = $this->grammar->compileProcedure($this, $procedure, $values);
 
+        // Remove any expressions from the values array, as they will have
+        // already been evaluated by the grammar's parameterize() function.
+        $values = array_filter($values, function ($value) {
+            return ! $this->grammar->isExpression($value);
+        });
+
         $this->fromRaw($compiledProcedure, array_values($values));
 
         return $this;