diff options
| -rw-r--r-- | synapse/storage/_base.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/synapse/storage/_base.py b/synapse/storage/_base.py index 304ebdc825..90d7aee94a 100644 --- a/synapse/storage/_base.py +++ b/synapse/storage/_base.py @@ -647,6 +647,9 @@ class SQLBaseStore(object): """ results = [] + if not iterable: + defer.returnValue(results) + chunks = [iterable[i:i+batch_size] for i in xrange(0, len(iterable), batch_size)] for chunk in chunks: rows = yield self.runInteraction( @@ -673,6 +676,9 @@ class SQLBaseStore(object): keyvalues : dict of column names and values to select the rows with retcols : list of strings giving the names of the columns to return """ + if not iterable: + return [] + sql = "SELECT %s FROM %s" % (", ".join(retcols), table) clauses = [] |