Implement #629, sqlite performance optimizatons for export db

2022-02-10 22:32:22 -08:00 · 2022-02-10 22:32:22 -08:00 · 5bdd52df25
commit 5bdd52df25
parent 3cde0b79c9
1 changed files with 8 additions and 0 deletions
--- a/osxphotos/export_db.py
+++ b/osxphotos/export_db.py
@ -649,6 +649,14 @@ class ExportDB(ExportDB_ABC):
            else:
                self.was_upgraded = ()
        self.version = OSXPHOTOS_EXPORTDB_VERSION
+
+        # turn on performance optimizations
+        c = conn.cursor()
+        c.execute("PRAGMA journal_mode=WAL;")
+        c.execute("PRAGMA synchronous=NORMAL;")
+        c.execute("PRAGMA cache_size=-100000;")
+        c.execute("PRAGMA temp_store=MEMORY;")
+
        return conn

    def _get_db_connection(self, dbfile):