note on aggregate

2020-05-26 11:33:51 -04:00 · 2020-05-26 11:33:51 -04:00 · 4d10455cf1
commit 4d10455cf1
parent 1e2c166ed8
1 changed files with 7 additions and 1 deletions
--- a/postgres/aggregate.md
+++ b/postgres/aggregate.md
@ -1,3 +1,8 @@
+To extract aggregate definitions can select from `pg_aggregate`
+
+
+SQL for current aggregates I'm using now:
+```      
 CREATE OR REPLACE FUNCTION public.jsonb_concat(
    state jsonb,
    concat jsonb)
@ -41,3 +46,4 @@ CREATE AGGREGATE public.jsonb_obj_aggc(jsonb) (
  STYPE=jsonb,
  INITCOND='{}'
 );
+```