fixed subscriber_info_watermark_name_fkey violation

1 files changed, 6 insertions, 2 deletions

diff --git a/sql/pgq/functions/pgq.unregister_consumer.sql b/sql/pgq/functions/pgq.unregister_consumer.sql
index eeb2524f..9921a069 100644
--- a/sql/pgq/functions/pgq.unregister_consumer.sql
+++ b/sql/pgq/functions/pgq.unregister_consumer.sql
@@ -63,8 +63,12 @@ begin
         delete from pgq.subscription
             where sub_id = x_sub_id;
 
-        delete from pgq.consumer
-            where co_id = _consumer_id;
+        perform 1 from pgq.subscription
+            where sub_consumer = _consumer_id;
+        if not found then
+            delete from pgq.consumer
+                where co_id = _consumer_id;
+        end if;
 
         return _sub_id_cnt;
     end if;