jsonb

I have table myTable with a JSONB column myJsonb with a data structure that I want to index like: { "myArray": [ { "subItem": { "email": "bar@bar.com" } }, { "subItem": { "email": "foo@foo.com" } } ] } I want to run indexed queries on email like: SELECT * FROM mytable WHERE 'foo@foo.com' IN ( SELECT lower( jsonb_array_elements(myjsonb -> 'myArray') -> 'subItem' ->> 'email' ) ); How do I create a Postgres JSONB index for that? If you don't need the lower() in there, the query can be simple and efficient: SELECT * FROM mytable WHERE myjsonb -> 'myArray' @> '[{"subItem": {"email": "foo@foo.com"}}

Using Postgres 9.4, I am looking for a way to merge two (or more) json or jsonb columns in a query. Consider the following table as an example: id | json1 | json2 ---------------------------------------- 1 | {'a':'b'} | {'c':'d'} 2 | {'a1':'b2'} | {'f':{'g' : 'h'}} Is it possible to have the query return the following: id | json ---------------------------------------- 1 | {'a':'b', 'c':'d'} 2 | {'a1':'b2', 'f':{'g' : 'h'}} Unfortunately, I can't define a function as described here . Is this possible with a "traditional" query? Here is the complete list of build-in functions that can be used

I use PostgreSQL 9.5 and Rails 5. I want to query the jsonb column shown below that holds an array of JSON objects to return all the JSON array element containing {"kind":"person"} and also perform a count. The SQL I use is shown below the json data. Running the query just returns an empty array. I have tried the queries suggested here and here . This is what my jsonb data looks like: '[ {"kind":"person", "filter_term":"56","selected_attr":"customer"}, {"kind":"email", "filter_term":"marketer","selected_attr":"job_title"} ]' I want one of the sql query to return: data -------------------------

I have a json array with around 1000 elements of the structure "oid: aaa, instance:bbb, value:ccc". {"_id": 37637070 , "data": [{"oid": "11.5.15.1.4", "value": "1", "instance": "1.1.4"} , {"oid": "11.5.15.1.9", "value": "17", "instance": "1.1.4"} , {"oid": "12.5.15.1.5", "value": "0.0.0.0", "instance": "0"}]} oid and instance are unique per json array. If I was given the option to change the structure I would have changed the format to key:value : {"11.5.15.1.4-1.1.4":"1", "11.5.15.1.9-1.1.4": "17", "12.5.15.1.5-0": "0.0.0.0"} However, if I need to stay with the old structure What is the

Postgres defines additional jsonb Operators such as ?| . However, using Spring JpaRepository query builder, interrogation character is always considered as a parameter, and I can't figure how to escape it (except inside a single quote string, but then the query is invalid). Example: @Query(value = "SELECT * FROM public.user u WHERE u.authorities ?| array['ROLE_1', 'ROLE_2']", nativeQuery = true) Error: java.lang.IllegalArgumentException: Unable to resolve given parameter name [1] to QueryParameter reference at org.hibernate.query.internal.QueryParameterBindingsImpl.resolveQueryParameter

I'm using the postgresql jdbc adapter to migrate a bunch of data into a jsonb field (postgres 9.4). After importing, date fields look correct but are displayed surrounded with doublequotes. Is there a way to tell if they are actually stored internally as date values ? If they're strings, I don't think range lookups will be very efficient. For example, an entry in a properties jsonb field looks like this: "founded_on": "Sep 1, 2012 12:00:00 AM", I can now search on, say, SELECT CAST(properties->>'founded_on' AS DATE and SELECT extract('year' from cast(properties->>'founded_on' as timestamp))