Normalize data in object_construct in Snowflake - snowflake-cloud-data-platform

Question

I'm using Snowflake's Object_Construct to create a JSON.
Use case: Snowflake table has Person Title as
Person Name
Title_1
Title_2
Title_3
in JSON structure, I need to transform this as
"Person_Title"[
{ "Title_1",
"Title_1_desc"
},
{"Title_2",
"Title_2_desc"
},
{"Title_3",
"Title_3_desc"
}
]

Answer 1

Below example outlines the placement of functions to get the output.
Though not sure if you are looking for any sort of dynamism, which following example does not gives -
with cte (Person_Name, Title_1, Title_2, Title_3) as (
select 'name-1','t1-desc-1','t2-desc-1','t3-desc-1' union all
select 'name-2','t1-desc-2','t2-desc-2','t3-desc-2' union all
select 'name-3','t1-desc-3','t2-desc-3','t3-desc-3'
)
select object_construct('Person_title',
array_construct(
object_construct('Title_1',Title_1),
object_construct('Title_2',Title_2),
object_construct('Title_3',Title_3))) output_json
from cte;
+------------------------------+
| OUTPUT_JSON |
|------------------------------|
| { |
| "Person_title": [ |
| { |
| "Title_1": "t1-desc-1" |
| }, |
| { |
| "Title_2": "t2-desc-1" |
| }, |
| { |
| "Title_3": "t3-desc-1" |
| } |
| ] |
| } |
| { |
| "Person_title": [ |
| { |
| "Title_1": "t1-desc-2" |
| }, |
| { |
| "Title_2": "t2-desc-2" |
| }, |
| { |
| "Title_3": "t3-desc-2" |
| } |
| ] |
| } |
| { |
| "Person_title": [ |
| { |
| "Title_1": "t1-desc-3" |
| }, |
| { |
| "Title_2": "t2-desc-3" |
| }, |
| { |
| "Title_3": "t3-desc-3" |
| } |
| ] |
| } |
+------------------------------+
Query with dynamism -
with cte (Person_Name, Title_1, Title_2, Title_3) as (
select 'name-1','t1-desc-1','t2-desc-1','t3-desc-1' union all
select 'name-2','t1-desc-2','t2-desc-2','t3-desc-2'
)
select object_construct('Person_title',
array_agg(object_construct(TITLE_DESC,TITLE))) as output_col
from
(select * from cte
unpivot (title for title_desc in (Title_1, Title_2, Title_3))
)
group by Person_Name;
+------------------------------+
| OUTPUT_COL |
|------------------------------|
| { |
| "Person_title": [ |
| { |
| "TITLE_1": "t1-desc-1" |
| }, |
| { |
| "TITLE_2": "t2-desc-1" |
| }, |
| { |
| "TITLE_3": "t3-desc-1" |
| } |
| ] |
| } |
| { |
| "Person_title": [ |
| { |
| "TITLE_1": "t1-desc-2" |
| }, |
| { |
| "TITLE_2": "t2-desc-2" |
| }, |
| { |
| "TITLE_3": "t3-desc-2" |
| } |
| ] |
| } |
+------------------------------+