I have table which has a column named tags
which is a jsonb type column.
Table "public.tagged_products"
Column | Type | Modifiers
------------- ----------------------------- --------------------------------------------------------------
id | integer | not null default nextval('tagged_products_id_seq'::regclass)
item_id | character varying(255) | not null
tags | jsonb | not null default '{}'::jsonb
create_time | timestamp(0) with time zone | not null default now()
update_time | timestamp(0) with time zone | not null default now()
active | boolean | not null default true
Indexes:
"tagged_products_pkey" PRIMARY KEY, btree (id) "uc_attributes_uid" UNIQUE CONSTRAINT, btree (tags, item_id) "lots_idx_attr" gin (tags)
"lots_idx_uid" btree (item_id)
Sample Data
-[ RECORD 1 ]-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
id | 17
item_id | 9846
tags | {"coo": "IN", "owner": "Online", "vastxt": "", "ecc_ibd": "180000010", "hm_order": "400000010", "entitled_to_dispose": "W141"}
create_time | 2022-02-24 11:49:23 05:30
update_time | 2022-02-24 11:49:23 05:30
active | t
Now I have a set of values which I want to search (not keys because i don't have/know the keys with me before hand) like this:
["IN", "Online"]
and both of these needs to be present in the record tags' values.
I referred and tried many things but failed
Referred : How to filter a value of any key of json in postgres
How should I go about writing the query for this use case ?
CodePudding user response:
Assuming your search terms are in a jsonb
array, turn it into text[]
, turn the values from the tags
column into text[]
, and use the @>
contains operator:
with search_terms as (
select array_agg(el) as search_array
from jsonb_array_elements_text('["IN", "Online"]') as et(el)
)
select m.id, m.tags
from search_terms s
cross join mytable m
cross join lateral jsonb_each_text(tags) t(k,v)
group by m.id, m.tags, s.search_array
having array_agg(t.v) @> s.search_array
;