The following bug has been logged on the website:
Bug reference: 16344
Logged by: Hongyan (Heather) Zhang
Email address: zhangh3@aetna.com
PostgreSQL version: 12.2
Operating system: PostgreSQL 12.0 on x86_64-pc-linux-gnu, compiled
Description:
json_agg vs jsonb_agg for a partitioned table, I found json_agg
siginificantly slow (6 secs) as jsonb (2mins)
create table aggtab as select id, json_agg(col) from tab group by id
truncate table <master table of 2 partitions, 1 local, another remote>
error: <remote table> is not a table