PostgreSQL:JSON

->

int

Get JSON array element (indexed from zero, negative integers count from the end)

'[{"a":"foo"},{"b":"bar"},{"c":"baz"}]'::json->2

{"c":"baz"}

->

text

Get JSON object field by key

'{"a": {"b":"foo"}}'::json->'a'

{"b":"foo"}

->>

int

Get JSON array element as text

'[1,2,3]'::json->>2

3

->>

text

Get JSON object field as text

'{"a":1,"b":2}'::json->>'b'

2

#>

text[]

Get JSON object at specified path

'{"a": {"b":{"c": "foo"}}}'::json#>'{a,b}'

{"c": "foo"}

#>>

text[]

Get JSON object at specified path as text

'{"a":[1,2,3],"b":[4,5,6]}'::json#>>'{a,2}'

3