html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,issue,performed_via_github_app
https://github.com/dogsheep/apple-notes-to-sqlite/issues/11#issuecomment-1462968053,https://api.github.com/repos/dogsheep/apple-notes-to-sqlite/issues/11,1462968053,IC_kwDOJHON9s5XMx71,9599,2023-03-09T23:24:01Z,2023-03-09T23:24:01Z,MEMBER,"I improved the readability by removing some unnecessary table aliases:
```sql
with recursive nested_folders(folder_id, descendant_folder_id) as (
  -- base case: select all immediate children of the root folder
  select id, id from folders where parent is null
  union all
  -- recursive case: select all children of the previous level of nested folders
  select nested_folders.folder_id, folders.id from nested_folders
  join folders on nested_folders.descendant_folder_id = folders.parent
)
-- Find notes within all descendants of folder 1
select *
from notes
where folder in (
  select descendant_folder_id from nested_folders where folder_id = 1
);
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1618130434,
https://github.com/dogsheep/apple-notes-to-sqlite/issues/11#issuecomment-1462962682,https://api.github.com/repos/dogsheep/apple-notes-to-sqlite/issues/11,1462962682,IC_kwDOJHON9s5XMwn6,9599,2023-03-09T23:20:35Z,2023-03-09T23:22:41Z,MEMBER,"Here's a query that returns all notes in folder 1, including notes in descendant folders:
```sql
with recursive nested_folders(folder_id, descendant_folder_id) as (
  -- base case: select all immediate children of the root folder
  select id, id from folders where parent is null
  union all
  -- recursive case: select all children of the previous level of nested folders
  select nf.folder_id, f.id from nested_folders nf
  join folders f on nf.descendant_folder_id = f.parent
)
-- Find notes within all descendants of folder 1
select *
from notes
where folder in (
  select descendant_folder_id from nested_folders where folder_id = 1
);
```
With assistance from ChatGPT. Prompts were:

```
SQLite schema:

CREATE TABLE [folders] (
   [id] INTEGER PRIMARY KEY,
   [long_id] TEXT,
   [name] TEXT,
   [parent] INTEGER,
   FOREIGN KEY([parent]) REFERENCES [folders]([id])
);

Write a recursive CTE that returns the following:

folder_id | descendant_folder_id

With a row for every nested child of every folder - so the top level folder has lots of rows
```
Then I tweaked it a bit, then ran this:
```
WITH RECURSIVE nested_folders(folder_id, descendant_folder_id) AS (
  -- base case: select all immediate children of the root folder
  SELECT id, id FROM folders WHERE parent IS NULL
  UNION ALL
  -- recursive case: select all children of the previous level of nested folders
  SELECT nf.folder_id, f.id FROM nested_folders nf
  JOIN folders f ON nf.descendant_folder_id = f.parent
)
-- select all rows from the recursive CTE
SELECT * from notes where folder in (select descendant_folder_id FROM nested_folders where folder_id = 1)

Convert all SQL keywords to lower case, and re-indent
```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1618130434,
https://github.com/dogsheep/apple-notes-to-sqlite/issues/11#issuecomment-1462965256,https://api.github.com/repos/dogsheep/apple-notes-to-sqlite/issues/11,1462965256,IC_kwDOJHON9s5XMxQI,9599,2023-03-09T23:22:12Z,2023-03-09T23:22:12Z,MEMBER,"Here's what the CTE from that looks like:

<img width=""469"" alt=""image"" src=""https://user-images.githubusercontent.com/9599/224182888-50f315eb-417f-4fb1-b624-151e1740ffed.png"">
","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1618130434,