yjhjstz commented on code in PR #1675:
URL: https://github.com/apache/cloudberry/pull/1675#discussion_r3065658607
##########
gpMgmt/bin/gppylib/commands/pg.py:
##########
@@ -17,6 +19,31 @@
GPHOME=os.environ.get('GPHOME')
+
+def ensure_replication_slot_exists(source_host, source_port,
+ replication_slot_name):
+ if not replication_slot_name:
+ return False
+
+ escaped_slot_name = replication_slot_name.replace("'", "''")
+ dburl = dbconn.DbURL(hostname=source_host, port=source_port,
+ dbname='template1')
+ with closing(dbconn.connect(dburl, utility=True)) as conn:
+ slot_exists = dbconn.querySingleton(
+ conn,
+ "SELECT count(*) FROM pg_catalog.pg_replication_slots "
+ "WHERE slot_name = '{}'".format(escaped_slot_name))
+ if slot_exists > 0:
+ return False
+
+ dbconn.querySingleton(
Review Comment:
use `dbconn.execSQL` ?
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