convertJsonbObject convert JsonValue to Jsonb.
Jsonb->vl_len_ is 4 byte
JsonbContainer->header is 4 bytes
JsonbContainer->children is an array of two elements, that's 8 bytes
following the k/v part, 20 bytes
In total 36 bytes.
When Jsonb is stored to disk, I guess some conversion reduces the
vl_
On 7/31/23 04:10, jian he wrote:
hi.
drop table x;
create table x(js jsonb);
insert into x select '{"Hello world":1}'::jsonb;
select pg_column_size(js) from x;-- return 33.
based on src/include/utils/jsonb.h
The key and value part is 20 bytes (is it correct?), Jsonb->vl_len_ is
4 byte, Jsonb
