[tracker/wip/carlosg/sparql1.1: 29/56] libtracker-sparql: Add "unknown graph" error enum value

[Carlos Garnacho <carlosg src gnome org>]

commit ab888f5396c49c73b0bd45cc476c8ffb53bda47a
Author: Carlos Garnacho <carlosg gnome org>
Date:   Thu May 30 12:01:24 2019 +0200

    libtracker-sparql: Add "unknown graph" error enum value
    
    This will be used when we support graphs for real.

 src/libtracker-sparql/tracker-connection.vala | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
---
diff --git a/src/libtracker-sparql/tracker-connection.vala b/src/libtracker-sparql/tracker-connection.vala
index 70ef83218..e871add0e 100644
--- a/src/libtracker-sparql/tracker-connection.vala
+++ b/src/libtracker-sparql/tracker-connection.vala
@@ -55,6 +55,7 @@ namespace Tracker {
  * @TRACKER_SPARQL_NO_SPACE: There was no disk space available to perform the request.
  * @TRACKER_SPARQL_INTERNAL: Internal error.
  * @TRACKER_SPARQL_UNSUPPORTED: Unsupported feature or method.
+ * @TRACKER_SPARQL_UNKNOWN_GRAPH: Unknown graph.
  *
  * Error domain for Tracker Sparql. Errors in this domain will be from the
  * #TrackerSparqlError enumeration. See #GError for more information on error
@@ -71,7 +72,8 @@ public errordomain Tracker.Sparql.Error {
        CONSTRAINT,
        NO_SPACE,
        INTERNAL,
-       UNSUPPORTED
+       UNSUPPORTED,
+       UNKNOWN_GRAPH
 }
 
 public enum Tracker.Sparql.ConnectionFlags {