BlueTrack SQL Database Tables Guide
This document provides a comprehensive overview of the SQL database tables used in the BlueTrack project, including their structure, fields, and purposes.
Tables Overview
| Table Name | Row Count | Purpose |
|---|---|---|
user_actions |
27,713,990 | Complete record of all user actions on the platform |
user_stats |
8,294 | Aggregated statistics for each user |
followers_list |
728,506 | User follow relationships mapping |
user_actions_sampled |
1,695,892 | Sampled subset of user actions |
Detailed Table Structures
1. user_actions
Purpose: Stores all user actions on the platform, including posts, replies, reposts, and likes.
| Field Name | Type | Description |
|---|---|---|
user_id |
integer | Unique user identifier |
action_type |
text | Type of action: post, reply, repost, like, etc. |
post_id |
integer | ID of the post/action created by this operation |
target_post_id |
integer | ID of the target post (for replies or reposts) |
target_author |
integer | User ID of the target post's author |
action_text |
text | Text content entered by the user in this action |
original_text |
text | Original text of the target post (preserved for replies/reposts) |
date |
text | Timestamp of the action (format: YYYYMMDDHHmm) |
labels |
text | Action labels or categories |
topic_name |
text | Associated topic name |
Example: A user posting a comment, replying to another post, or reposting content.
2. user_stats
Purpose: Stores aggregated statistics for each user, enabling quick queries of user activity and influence metrics.
| Field Name | Type | Description |
|---|---|---|
user_id |
integer | Unique user identifier (primary key) |
following_count |
integer | Number of users this user follows |
follower_count |
integer | Number of followers this user has |
mutual_follow_count |
integer | Number of mutual followers |
sampled_count |
integer | Number of sampled actions for this user |
post_count |
integer | Total number of posts created |
reply_count |
integer | Total number of replies made |
repost_count |
integer | Total number of reposts made |
like_count |
integer | Total number of likes given |
community_id |
integer | Community ID the user belongs to |
Example: User 100032 has 205 following, 83 followers, and created 60 posts.
3. followers_list
Purpose: Stores follow relationships between users, used to construct the social network graph.
| Field Name | Type | Description |
|---|---|---|
user_id |
integer | ID of the user being followed |
follower_id |
integer | ID of the user who is following |
Note: Each row represents that follower_id follows user_id. This is a directed relationship.
Example: If user_id=100032 and follower_id=100447, it means user 100447 follows user 100032.
4. user_actions_sampled
Purpose: Stores a sampled subset of user actions to reduce data volume while maintaining representativeness.
| Field Name | Type | Description |
|---|---|---|
user_id |
bigint | Unique user identifier |
action_type |
text | Type of action: post, reply, repost, like, etc. |
post_id |
bigint | ID of the post/action created |
target_post_id |
bigint | ID of the target post |
target_author |
bigint | User ID of the target post's author |
action_text |
text | Text content entered by the user |
original_text |
text | Original text of the target post |
date |
text | Timestamp of the action |
labels |
text | Action labels |
topic_name |
text | Associated topic name |
source_type |
text | Data source type |
Note: This table is a sampled version of user_actions, retaining all fields but with significantly reduced data volume (~1.7M rows vs 27.7B rows), enabling faster analysis and testing.
Usage Recommendations
- Quick User Queries: Use
user_statsto retrieve aggregated user data - Behavior Analysis: Use
user_actionsoruser_actions_sampledfor detailed action analysis - Social Network Construction: Use
followers_listto build follow relationship graphs - Performance Optimization: Prioritize
user_actions_sampledover fulluser_actionsfor large-scale analysis - Community Analysis: Use
community_idinuser_statsto segment users by community
Data Statistics
- Total unique users: 8,294 (from
final_users) - Total actions recorded: 27.7 billion (from
user_actions) - Total follow relationships: 728,506 (from
followers_list) - Sampled actions: 1.7 million (from
user_actions_sampled)
Dataset Source: Based on the Bluesky dataset from Failla & Rossetti (2024)