Corrections after LTT changes

Author: asfernandes

src/dsql/metd.epp

@@ -267,7 +267,7 @@ void METD_drop_relation(jrd_tra* transaction, const QualifiedName& name)
 
 	if (dbb->dbb_relations.get(name, relation))
 	{
-		if (!(relation->rel_flags & REL_temp_ltt))
+		if (!(relation->rel_flags & REL_ltt_created))
 			MET_dsql_cache_use(tdbb, SYM_relation, name);
 
 		relation->rel_flags |= REL_dropped;

src/jrd/dfw.epp

@@ -5807,7 +5807,8 @@ static void get_trigger_dependencies(DeferredWork* work, bool compile, jrd_tra*
 	FOR(REQUEST_HANDLE handle)
 		X IN RDB$TRIGGERS
 		WITH X.RDB$SCHEMA_NAME EQ work->dfw_schema.c_str() AND
-			 X.RDB$TRIGGER_NAME EQ work->dfw_name.c_str()
+			 X.RDB$TRIGGER_NAME EQ work->dfw_name.c_str() AND
+			 X.RDB$RELATION_NAME NOT MISSING
 	{
 		blob_id = X.RDB$TRIGGER_BLR;
 		type = (ISC_UINT64) X.RDB$TRIGGER_TYPE;

src/jrd/met.epp

@@ -3187,6 +3187,8 @@ jrd_rel* MET_lookup_relation(thread_db* tdbb, const QualifiedName& name)
 		}
 	}
 
+	relation = nullptr;
+
 	// We need to look up the relation name in RDB$RELATIONS
 
 	static const CachedRequestId request1CacheId;