Clang: Watch only PCH sources

We watched all sources but we do not want to watch the sources of the
project part because they are not used to build a PCH.

Change-Id: I700cd6077fc54230c9be94d620043cf3f10cf9ea
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/libs/clangsupport/refactoringdatabaseinitializer.h b/src/libs/clangsupport/refactoringdatabaseinitializer.h
index a7058d3204..6042264a5d 100644
--- a/src/libs/clangsupport/refactoringdatabaseinitializer.h
+++ b/src/libs/clangsupport/refactoringdatabaseinitializer.h
@@ -144,11 +144,11 @@ public:
         table.setName("projectPartsFiles");
         const Sqlite::Column &projectPartIdColumn = table.addColumn("projectPartId", Sqlite::ColumnType::Integer);
         const Sqlite::Column &sourceIdColumn = table.addColumn("sourceId", Sqlite::ColumnType::Integer);
-        table.addColumn("sourceType", Sqlite::ColumnType::Integer);
+        const Sqlite::Column &sourceType = table.addColumn("sourceType", Sqlite::ColumnType::Integer);
         table.addColumn("pchCreationTimeStamp", Sqlite::ColumnType::Integer);
         table.addColumn("hasMissingIncludes", Sqlite::ColumnType::Integer);
         table.addUniqueIndex({sourceIdColumn, projectPartIdColumn});
-        table.addIndex({projectPartIdColumn});
+        table.addIndex({projectPartIdColumn, sourceType});
 
         table.initialize(database);
     }