[tracker/wip/carlosg/serialize-api] libtracker-data: Return NULL on failed date conversions

[Carlos Garnacho <carlosg src gnome org>]

commit 8bce38dc3776789ffbcf729edae74514e57181c4
Author: Carlos Garnacho <carlosg gnome org>
Date:   Fri Feb 4 14:41:03 2022 +0100

    libtracker-data: Return NULL on failed date conversions
    
    We shouldn't get dates out of range in our database, but if we do,
    don't break otherwise correct queries by raising logic errors.

 src/libtracker-data/tracker-db-interface-sqlite.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/libtracker-data/tracker-db-interface-sqlite.c 
b/src/libtracker-data/tracker-db-interface-sqlite.c
index a0153c5c9..ac23beb70 100644
--- a/src/libtracker-data/tracker-db-interface-sqlite.c
+++ b/src/libtracker-data/tracker-db-interface-sqlite.c
@@ -451,7 +451,7 @@ function_sparql_format_time (sqlite3_context *context,
                                             -1, g_free);
                        g_date_time_unref (datetime);
                } else {
-                       result_context_function_error (context, fn, "Datetime conversion error");
+                       sqlite3_result_null (context);
                }
        } else if (sqlite3_value_type (argv[0]) == SQLITE_TEXT) {
                const gchar *str;