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Implement #629, sqlite performance optimizatons for export db

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This commit is contained in:
Rhet Turnbull 2022-02-10 22:32:22 -08:00
parent 3cde0b79c9
commit 5bdd52df25
1 changed files with 8 additions and 0 deletions
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8
osxphotos/export_db.py
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@ -649,6 +649,14 @@ class ExportDB(ExportDB_ABC):
else: else:
self.was_upgraded = () self.was_upgraded = ()
self.version = OSXPHOTOS_EXPORTDB_VERSION 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 return conn
def _get_db_connection(self, dbfile): def _get_db_connection(self, dbfile):