diff --git a/great_ai/persistence/parallel_tinydb_driver.py b/great_ai/persistence/parallel_tinydb_driver.py
index e648477..c278549 100644
--- a/great_ai/persistence/parallel_tinydb_driver.py
+++ b/great_ai/persistence/parallel_tinydb_driver.py
@@ -67,7 +67,7 @@ class ParallelTinyDbDriver(TracingDatabaseDriver):
         if not documents:
             return [], 0
 
-        df = pd.DataFrame(documents)
+        df = pd.DataFrame([Trace.parse_obj(d).to_flat_dict() for d in documents])
 
         for f in conjunctive_filters:
             operator = f.operator.lower()
@@ -76,7 +76,12 @@ class ParallelTinyDbDriver(TracingDatabaseDriver):
                     getattr(df[f.property], operator_mapping[f.operator])(f.value)
                 ]
             elif operator == "contains":
-                df = df.loc[df[f.property].str.contains(f.value, case=False)]
+                df = df.loc[
+                    df[f.property].str.contains(
+                        str(int(f.value)) if isinstance(f.value, float) else f.value,
+                        case=False,
+                    )
+                ]
 
         if sort_by:
             df.sort_values(
diff --git a/great_ai/views/trace.py b/great_ai/views/trace.py
index fa71d81..76f03f5 100644
--- a/great_ai/views/trace.py
+++ b/great_ai/views/trace.py
@@ -88,7 +88,9 @@ class Trace(Generic[T], HashableBaseModel):
                 }
             ),
             **{
-                k: pformat(v, indent=2, compact=True)
+                k: v
+                if (isinstance(v, float) or isinstance(v, int))
+                else pformat(v, indent=2, compact=True)
                 for k, v in self.logged_values.items()
             },
             "models_flat": self.models_flat,