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authorkaiyou <pierre@jaury.eu>2018-04-08 17:56:44 +0200
committerkaiyou <pierre@jaury.eu>2018-04-08 17:56:44 +0200
commita13b7860c6570ad1bb9003e94ad67c761f0cf312 (patch)
treed08b2c50d1c1a6e570c59396660cd83836aa9f14 /synapse/storage/engines/postgres.py
parentMerge remote-tracking branch 'upstream/master' into feat-dockerfile (diff)
parentUpdate README.rst (diff)
downloadsynapse-a13b7860c6570ad1bb9003e94ad67c761f0cf312.tar.xz
Merge remote-tracking branch 'upstream/master' into feat-dockerfile
Diffstat (limited to 'synapse/storage/engines/postgres.py')
-rw-r--r--synapse/storage/engines/postgres.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/synapse/storage/engines/postgres.py b/synapse/storage/engines/postgres.py
index a6ae79dfad..8a0386c1a4 100644
--- a/synapse/storage/engines/postgres.py
+++ b/synapse/storage/engines/postgres.py
@@ -62,3 +62,9 @@ class PostgresEngine(object):
 
     def lock_table(self, txn, table):
         txn.execute("LOCK TABLE %s in EXCLUSIVE MODE" % (table,))
+
+    def get_next_state_group_id(self, txn):
+        """Returns an int that can be used as a new state_group ID
+        """
+        txn.execute("SELECT nextval('state_group_id_seq')")
+        return txn.fetchone()[0]