diff options
Diffstat (limited to 'src/libtracker-data/tracker-sparql.c')
| -rw-r--r-- | src/libtracker-data/tracker-sparql.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/libtracker-data/tracker-sparql.c b/src/libtracker-data/tracker-sparql.c index 8091aea23..6278978ab 100644 --- a/src/libtracker-data/tracker-sparql.c +++ b/src/libtracker-data/tracker-sparql.c @@ -5312,7 +5312,8 @@ translate_Bind (TrackerSparql *sparql, TrackerVariable *variable; TrackerBinding *binding; TrackerPropertyType type; - gboolean is_empty; + gboolean is_empty, already_defined; + gchar *var_name; /* Bind ::= 'BIND' '(' Expression 'AS' Var ')' */ @@ -5337,9 +5338,18 @@ translate_Bind (TrackerSparql *sparql, _expect (sparql, RULE_TYPE_LITERAL, LITERAL_AS); _call_rule (sparql, NAMED_RULE_Var, error); + /* "The variable introduced by the BIND clause must + * not have been used in the group graph pattern up + * to the point of use in BIND." + */ + var_name = _dup_last_string (sparql); + already_defined = tracker_context_lookup_variable_by_name (sparql->current_state->context, + var_name); + g_free (var_name); + variable = _last_node_variable (sparql); - if (tracker_variable_has_bindings (variable)) + if (already_defined) _raise (PARSE, "Expected undefined variable in BIND", variable->name); _append_string_printf (sparql, "AS %s ", |