I'm trying to insert data into a JSONB field based on a dependent table.
Essentially I want to do this (ignore why this is just an example query):
insert into myschema.teams (team_name, params)
select users.team_name, '{"team_name": teams.team_id, "user_name": users.username }'
from myschema.users
where users.team_name is not null;
As written I'm getting these errors:
ERROR: invalid input syntax for type json
LINE 2: ... '{"team_name...
^
DETAIL: Token "teams" is invalid.
CONTEXT: JSON data, line 1: {"team_name": teams...
You are using a string literal that doesn't contain valid JSON. There is no interpolation going on - you need use the jsonb_build_object function to create the JSONB value from dynamic values. (You could also do string concatenation and the cast from text to json, but please don't).
insert into myschema.teams (team_name, params)
select users.team_name, jsonb_build_object('team_name', teams.team_name, 'user_name', users.username)
from myschema.users
where users.team_name is not null;
Related
I got this error when I try to get the list of all rows on my table. This only happens because I include one of the column in the SELECT. The column itself is an enum column and I wanna use COALESCE for the column in case it meets a null value.
This is a simplication of my code
SELECT id,
user_id,
coalesce(date_unit, '') date_unit
FROM table_name
WHERE user_id = $1
I got this error when I try to run it
SQL Error [22P02]: ERROR: invalid input value for enum table_name.date_unit: ""
This is the error when I run it using SQLX On Golang
Pq: invalid input value for enum table_name.date_unit: \"\"
date_unit itself is an enum which has restricted values. It only accepts day and month as value in the table. But lots of rows have null value in date_unit.
I wanna convert it to "" or empty string if date_unit value is null.
Is there a problem with the COALESCE with enum values? How should I use COALESCE to work with what I wanna do?
The answer is found in the comment section of the question.
To officiate it, as date_unit is not a string type, it cannot be returned when querying (invalid data type). As such, when querying, we should convert date_unit to string type.
This can be done using the query:
SELECT id,
user_id,
COALESCE(date_unit::text, '')
FROM table_name
WHERE user_id = $1
SELECT id,
user_id,
coalesce(date_unit, '')
FROM table_name
WHERE user_id = $1
I have a PostgreSQL table called files which includes a jsonb table called formats. While some rows are [null], others have objects with this structure:
{
"thumbnail": {
"ext": ".jpg",
"url": "https://some-url.com/image01.jpg",
"name": "image01.jpg",
//...other properties
}
}
For every row I want to update the thumbnail.url and replace some-url with other-url.
I'm far from being an expert in PostgreSQL (or any other DB for that matter), and after some reading I tried to run the following query in pgAdmin:
UPDATE files
SET formats = jsonb_set(formats, '{thumbnail.url}', REPLACE('{thumbnail.url}', 'some-url', 'other-url'))
And I received this error: function jsonb_set(jsonb, unknown, text) does not exist
I tried to set format jsonb_set(formats::jsonb...), tried to target '{thumbnail}' instead of '{thumbnail.url}' - always the same error.
What am I doing wrong? Or is pgAdmin really doesn't support this function? How can I do such an update with pgAdmin query tool?
We can try to use ->> to get JSON content value of url and then replace your expect value from that.
Because your url field of your JSON might be string type we need to use " to content it before cast as JSONB
jsonb_set(target jsonb, path text[], new_value jsonb [, create_missing boolean])
UPDATE files
SET formats = jsonb_set(formats, '{thumbnail,url}', CONCAT('"',REPLACE(formats->'thumbnail'->>'url','some-url','other-url'),'"')::JSONB);
sqlfiddle
The second parameter of jsonb_set() must be an array with one array element for each "path" element. So the second parameter should be '{thumbnail,url}' or more obvious: array['thumbnail', 'url']
And the third parameter must be a jsonb value, but replace returns a text, so you need to use e.g. to_jsonb() to convert the result of the replace() to a jsonb value.
And as D-Shih pointed out, you need to extract the old value using ->>. But to get the URL you need to "navigate" to it: formats -> 'thumbnail ->> 'url'
I would also add a WHERE clause so that you only update rows that actually contain a URL.
UPDATE files
SET formats = jsonb_set(formats,
'{thumbnail,url}',
to_jsonb(replace(formats -> 'thumbnail' ->> 'url', 'some-url', 'other-url'))
)
where (formats -> 'thumbnail') ? 'url'
How can I concatenate a string inside of a concatenated jsonb object in postgresql? In other words, I am using the JSONb concatenate operator as well as the text concatenate operator in the same query and running into trouble.
Or... if there is a totally different query I should be executing, I'd appreciate hearing suggestions. The goal is to update a row containing a jsonb column. We don't want to overwrite existing key value pairs in the jsonb column that are not provided in the query and we also want to update multiple rows at once.
My query:
update contacts as c set data = data || '{"geomatch": "MATCH","latitude":'||v.latitude||'}'
from (values (16247746,40.814140),
(16247747,20.900840),
(16247748,20.890570)) as v(contact_id,latitude) where c.contact_id = v.contact_id
The Error:
ERROR: invalid input syntax for type json
LINE 85: update contacts as c set data = data || '{"geomatch": "MATCH...
^
DETAIL: The input string ended unexpectedly.
CONTEXT: JSON data, line 1: {"geomatch": "MATCH","latitude":
SQL state: 22P02
Character: 4573
You might be looking for
SET data = data || ('{"geomatch": "MATCH","latitude":'||v.latitude||'}')::jsonb
-- ^^ jsonb ^^ text ^^ text
but that's not how one should build JSON objects - that v.latitude might not be a valid JSON literal, or even contain some injection like "", "otherKey": "oops". (Admittedly, in your example you control the values, and they're numbers so it might be fine, but it's still a bad practice). Instead, use jsonb_build_object:
SET data = data || jsonb_build_object('geomatch', 'MATCH', 'latitude', v.latitude)
There are two problems. The first is operator precedence preventing your concatenation of a jsonb object to what is read a text object. The second is that the concatenation of text pieces requires a cast to jsonb.
This should work:
update contacts as c
set data = data || ('{"geomatch": "MATCH","latitude":'||v.latitude||'}')::jsonb
from (values (16247746,40.814140),
(16247747,20.900840),
(16247748,20.890570)) as v(contact_id,latitude)
where c.contact_id = v.contact_id
;
From my database I have formed a json data as below. I am trying to search for a value in the json data filedata
filedata = {"{\"fc_primary_key\": \"A1234567892017/06/27\"}","{\"fc_primary_key\": \"A1234567892017/06/27\"}","{\"fc_primary_key\": \"A1234567892017/08/07\"}","{\"fc_primary_key\": \"A1234567892017/08/07\"}","{\"fc_primary_key\": \"A1234567892017/08/07\"}","{\"fc_primary_key\": \"A1234567892017/08/07\"}","{\"fc_primary_key\": \"A1234567892017/08/07\"}","{\"fc_primary_key\": \"A1234567892024/03/01\"}","{\"fc_primary_key\": \"A12345678945353\"}","{\"fc_primary_key\": \"A1234567892023/11/22\"}","{\"fc_primary_key\": \"A12345678945252\"}","{\"fc_primary_key\": \"A1234567892017-07-01\"}"}
In the above data I am trying to find if there is A1234567892023/11/22 in it.
I have tried the below query
IF filedata::text #> JSONB '[{"fc_primary_key": "A1234567892023/11/22"}]'
THEN
RAISE NOTICE 'PRIMARY KEY %', 'exists';
END IF;
I am getting the error as below.
ERROR: operator does not exist: text = jsonb
LINE 1: SELECT filedata::text = JSONB '[{"fc_primary_key": "A1234567...
^
HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts.
Please help.
I have strings representing jsons where field names and values are enclosed in single quotes, for example {'name': 'Grzegorz', 'age': 123}. Let's assume that I have also a table in postgres database:
CREATE TABLE item (
metadata jsonb
);
I'm trying to insert rows using JOOQ. JOOQ generates the following statement:
insert into Item values('{''name'': ''Grzegorz'', ''age'': 123}'::jsonb); but an error is thrown:
ERROR: invalid input syntax for type json
LINE 1: insert into Item values('{''name'': ''Grzegorz'', ''age'': 1...
Token "'" is invalid.
JSON data, line 1: {'...
Is there any possibility to insert json with names enclosed in single quotes ' instead of double quotes " or should I convert all ' to "?
Thanks in advance!
Grzegorz
Json syntax requires double quotes, so It is not a question of Postgres. Server accepts only valid json values.
You can use replace():
insert into item
values(replace('{''name'': ''Grzegorz'', ''age'': 123}', '''', '"')::jsonb);
select * from item;
metadata
----------------------------------
{"age": 123, "name": "Grzegorz"}
(1 row)