how can we replicate hive nested structs in snowflake? - hive

Question

I have nested struct data in DB I need to migrate that to snowflake how can I replicate that nested struct in snowflake. In snowflake I don't have struct data type it is only variant.

Answer 1

so google finds:
https://gist.github.com/irajhedayati/c595e349d68b7a5074da81f1b8c6eec5
which has some code like:
INSERT into calls_nested
SELECT
'5' AS call_id,
'Jack' AS name,
45 AS age,
named_struct('first_name', 'Joe', 'last_name', 'Doe') AS account,
named_struct('home', '514-111-2222', 'work', '514-333-4444') AS phone_directory,
array(
named_struct('street', '1 Guy', 'city', 'Montreal'),
named_struct('street', '1 McGill', 'city', 'Montreal')
) AS addresses;
named_struct -> object_construct
array -> array_construct
and you just keep stacking them if that's what you want.
SELECT
'5' AS call_id,
'Jack' AS name,
45 AS age,
object_construct('first_name', 'Joe', 'last_name', 'Doe') AS account,
object_construct('home', '514-111-2222', 'work', '514-333-4444') AS phone_directory,
array_construct(
object_construct('street', '1 Guy', 'city', 'Montreal'),
object_construct('street', '1 McGill', 'city', 'Montreal')
) AS addresses,
object_construct('call_id', call_id, 'name', name, 'age' ,age, 'account', account, 'phone_directory', phone_directory, 'addresses',addresses) as object_of_objects
;
CALL_ID
NAME
AGE
ACCOUNT
PHONE_DIRECTORY
ADDRESSES
OBJECT_OF_OBJECTS
5
Jack
45
{ "first_name": "Joe", "last_name": "Doe" }
{ "home": "514-111-2222", "work": "514-333-4444" }
[ { "city": "Montreal", "street": "1 Guy" }, { "city": "Montreal", "street": "1 McGill" } ]
{ "account": { "first_name": "Joe", "last_name": "Doe" }, "addresses": [ { "city": "Montreal", "street": "1 Guy" }, { "city": "Montreal", "street": "1 McGill" } ], "age": 45, "call_id": "5", "name": "Jack", "phone_directory": { "home": "514-111-2222", "work": "514-333-4444" } }