Update dataset card

README.md

@@ -1,3 +1,141 @@
----
-license: mit
----
+---
+pretty_name: pr0gramm user comments
+license: other
+task_categories:
+- text-mining
+language:
+- de
+- en
+size_categories:
+- 10M<n<100M
+---
+
+# pr0gramm-usercomments
+
+This dataset contains a SQLite database of pr0gramm item metadata and item comments.
+
+Current file in the repo:
+
+- `pr0gramm.sqlite3`
+
+## Coverage
+
+From the current database snapshot, comments are present up to item `6986879`.
+
+The newest item rows currently in `items` are:
+
+- `6986879` created at `2026-04-17 19:17:36 UTC`
+- `6986878` created at `2026-04-17 19:17:30 UTC`
+- `6986877` created at `2026-04-17 19:16:19 UTC`
+
+The latest observed detail crawl time for those rows is `2026-04-17 19:18:03 UTC`.
+
+This means the uploaded snapshot includes comment coverage at least through that item range. Not every nearby item necessarily has comments, because many items on pr0gramm simply have zero comments.
+
+## Database layout
+
+The SQLite file contains these tables:
+
+- `comments`
+- `items`
+- `crawl_state`
+- `item_detail_failures`
+
+### `comments`
+
+One row per comment.
+
+Columns:
+
+- `comment_id` INTEGER PRIMARY KEY
+- `item_id` INTEGER NOT NULL
+- `parent_comment_id` INTEGER
+- `comment_time` INTEGER
+- `score` INTEGER
+- `upvotes` INTEGER
+- `downvotes` INTEGER
+- `crawl_time` INTEGER NOT NULL
+- `user_name` TEXT
+- `user_id` INTEGER
+- `user_profile_url` TEXT
+- `body` TEXT
+- `raw_json` TEXT NOT NULL
+
+### `items`
+
+One row per crawled item.
+
+Columns:
+
+- `item_id` INTEGER PRIMARY KEY
+- `promoted` INTEGER
+- `flags` INTEGER
+- `created_at` INTEGER
+- `user_name` TEXT
+- `source_feed` TEXT NOT NULL
+- `crawl_time` INTEGER NOT NULL
+- `raw_json` TEXT NOT NULL
+- `detail_crawl_time` INTEGER
+
+### `crawl_state`
+
+Crawler checkpoint state.
+
+Columns:
+
+- `key` TEXT PRIMARY KEY
+- `value` TEXT NOT NULL
+- `updated_at` INTEGER NOT NULL
+
+### `item_detail_failures`
+
+Tracks item detail fetch failures.
+
+Columns:
+
+- `item_id` INTEGER PRIMARY KEY
+- `first_failed_at` INTEGER NOT NULL
+- `last_failed_at` INTEGER NOT NULL
+- `attempt_count` INTEGER NOT NULL
+- `last_error` TEXT NOT NULL
+- `terminal` INTEGER NOT NULL DEFAULT 0
+- `resolved_at` INTEGER
+
+## Notes
+
+- Unix timestamps are stored as integer seconds.
+- `raw_json` keeps the original API payload for reproducibility.
+- The database may contain items without comments.
+- The database may also contain unresolved detail failures for some items that need a later retry.
+
+## Example queries
+
+Show the latest item with at least one stored comment:
+
+```sql
+SELECT item_id
+FROM comments
+ORDER BY item_id DESC
+LIMIT 1;
+```
+
+Show recent commented items:
+
+```sql
+SELECT item_id, COUNT(*) AS comments
+FROM comments
+GROUP BY item_id
+ORDER BY item_id DESC
+LIMIT 20;
+```
+
+Inspect the newest crawled items:
+
+```sql
+SELECT item_id,
+       datetime(created_at, 'unixepoch') AS created_at_utc,
+       datetime(detail_crawl_time, 'unixepoch') AS detail_crawl_time_utc
+FROM items
+ORDER BY item_id DESC
+LIMIT 20;
+```