fix FLOAT type conversion in presto

Author: vvkh

sqeleton/databases/presto.py

@@ -93,6 +93,9 @@ def explain_as_text(self, query: str) -> str:
         return f"EXPLAIN (FORMAT TEXT) {query}"
 
     def type_repr(self, t) -> str:
+        if isinstance(t, TimestampTZ):
+            return f"timestamp with time zone"
+
         try:
             return {float: "REAL"}[t]
         except KeyError:
@@ -141,11 +144,6 @@ def set_timezone_to_utc(self) -> str:
     def current_timestamp(self) -> str:
         return "current_timestamp"
 
-    def type_repr(self, t) -> str:
-        if isinstance(t, TimestampTZ):
-            return f"timestamp with time zone"
-        return super().type_repr(t)
-
 
 class Presto(Database):
     dialect = Dialect()