Summary: Comparing Warehouses Against Top Performer
File History Snapshot (2025-12-06T14:41:47.073Z)
Summary: Warehouse Delivery Comparison Analysis Query
File History Snapshot (2025-12-06T14:42:40.494Z)
USER
  hi! if I wanted to see what thetop Warehouse was for deliveries in 2023, and then generates a table which Compares all warehouses against that one, showing a percentage difference in deliveries against the top one, what would that look like?
ASSISTANT
  Hi! Great question - this involves a few SQL concepts working together. Let me break it down and show you with real data.
  
  **The approach:**
  1. First, find the top warehouse by total deliveries in 2023
  2. Then compare every warehouse against that top one as a percentage
  
  Here's the query:
  
  ```sql
  WITH warehouse_totals AS (
      -- Sum up deliveries per warehouse for 2023
      SELECT 
          warehouse_id,
          warehouse_name,
          SUM(total_shipments) AS total_deliveries
      FROM daily_delivery_metrics
      WHERE YEAR(report_date) = 2023
      GROUP BY warehouse_id, warehouse_name
  ),
  top_warehouse AS (
      -- Find the max deliveries
      SELECT MAX(total_deliveries) AS max_deliveries
      FROM warehouse_totals
  )
  SELECT 
      wt.warehouse_name,
      wt.total_deliveries,
      tw.max_deliveries AS top_deliveries,
      ROUND(
          ((wt.total_deliveries - tw.max_deliveries) / tw.max_deliveries) * 100, 
          1
      ) AS pct_diff_from_top
  FROM warehouse_totals wt
  CROSS JOIN top_warehouse tw
  ORDER BY wt.total_deliveries DESC;
  ```
  
  Let me run this and show you the results:
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ASSISTANT
Tool: Bash
  (toolu_01VehdMWocdwxy9xLJ72knB4)
    command: tmux display-message -p 'Width: #{pane_width} Height: #{pane_height}'
    description: Get terminal dimensions for pane
  Tokens: in=2 out=1 cache=17760
ASSISTANT
Tool: Bash
  (toolu_01Phbt7VFcto9SjNSY3qQh8k)
    command: mariadb practice -e "
    WITH warehouse_totals AS (
        SELECT 
            warehouse_id,
            warehouse_name,
            SUM(total_shipments) AS total_deliveries
        FROM daily_delivery_metrics
        WHERE YE...
    description: Run warehouse comparison query
  Tokens: in=2 out=705 cache=17760
Result
  (toolu_01VehdMWocdwxy9xLJ72knB4)
    Width: 212 Height: 55
Result
  (toolu_01Phbt7VFcto9SjNSY3qQh8k)
    warehouse_name	total_deliveries	top_deliveries	pct_diff_from_top
    Seattle Gateway	2832	2832	0.0
    Portland Terminal	2778	2832	-1.9
    San Diego Center	2775	2832	-2.0
    San Francisco Bay	2766	2832	-2.3
    Salt Lake Depot	2762	2832	-2.5
    Fresno Valley	2745	2832	-3.1
    Las Vegas Fulfillment	2741	2832	-3.2
    Denver Mountain	2726	2832	-3.7
    Phoenix Distribution	2716	2832	-4.1
    Los Angeles Hub	2683	2832	-5.3
ASSISTANT
  Here are the results - **Seattle Gateway** was the top warehouse with 2,832 deliveries in 2023. The `pct_diff_from_top` column shows how each warehouse compares:
  - `0.0` = they ARE the top (Seattle)
  - `-1.9` = Portland had 1.9% fewer deliveries than Seattle
  - `-5.3` = Los Angeles had 5.3% fewer deliveries
  
  **Key concepts used:**
  
  | Concept | What it does |
  |---------|--------------|
  | `WITH ... AS` (CTE) | Creates temporary named result sets you can reference |
  | `CROSS JOIN` | Attaches the single "max" value to every row |
  | `ROUND(..., 1)` | Rounds to 1 decimal place |
  
  Would you like me to explain any of these parts in more detail? I can open a pane showing the query building up step-by-step with intermediate results.
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File History Snapshot (2025-12-06T14:43:14.048Z)
USER
  more detail :)
ASSISTANT
  Let me create a step-by-step example that builds up to the final query, showing what each part returns:
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ASSISTANT
Tool: Bash
  (toolu_01VoDzVsZGrZ4xZEEDAJ6Lg3)
    command: cat > ~/public/examples/warehouse-comparison.sql << 'EOF'
    #!/home/rosy/bin/sql-run --show-script --color=always
    
    -- =====================================================
    -- STEP 1: Start simple - get ...
    description: Create step-by-step SQL example
  Tokens: in=2 out=958 cache=26824
Result
  (toolu_01VoDzVsZGrZ4xZEEDAJ6Lg3)
ASSISTANT
Tool: Bash
  (toolu_01CC7bacDKFw8GoySwqp7ifF)
    command: claude-pane --position side --page --command '~/public/examples/warehouse-comparison.sql'
    description: Show SQL example in pane
  Tokens: in=0 out=96 cache=27050
Result
  (toolu_01CC7bacDKFw8GoySwqp7ifF)
    opened pane %36 at position 'side'
USER
  [Request interrupted by user]
File History Snapshot (2025-12-06T14:44:34.919Z)
USER
  oof. this would have been a great place to use the `block-run` approach. can you read CLAUDE.md and find any sql/python/bash/node examples that **don't** use block-run?
ASSISTANT
  Good catch! Let me search for examples that should be using `block-run` but aren't:
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ASSISTANT
Tool: Bash
  (toolu_01J9fv9D8ueWtUhFtMGvRgh1)
    command: claude-pane --position side --kill 2>/dev/null; true
    description: Close the pane
  Tokens: in=2 out=1 cache=28259
ASSISTANT
Tool: Grep
  (toolu_01EFchGgvuEuATLxcvHrpomF)
    pattern: sql-run|pygmentize|claude-pane.*command.*\.(sql|py|sh|js)
    path: /home/rosy/CLAUDE.md
    output_mode: content
    -n: True
  Tokens: in=2 out=231 cache=28259
Result
  (toolu_01J9fv9D8ueWtUhFtMGvRgh1)
Result
  (toolu_01EFchGgvuEuATLxcvHrpomF)
    436:## SQL Examples with `sql-run`
    441:2. **Write an example script** in `~/public/examples/` with a sql-run shebang and helpful comments
    447:#!/home/rosy/bin/sql-run --show-script --color=always
    472:claude-pane --position side --page --command '~/public/examples/joins-example.sql'
    477:Use `pygmentize` to show syntax-highlighted SQL without execution. Still use comments to explain, and provide example output after each section:
    492:claude-pane --position side --page --command 'pygmentize -l sql ~/public/examples/example.sql'
    512:- **Code/SQL**: `pygmentize -l <language>` (e.g., `-l sql`, `-l python`, `-l bash`)
    513:- **SQL via sql-run**: automatically highlights with `--show-script`
    628:claude-pane --position below --page --command 'block-run ~/public/examples/my-script.sql'
    
    [Showing results with pagination = limit: 100, offset: 0]
ASSISTANT
  Found them! Here are the places in CLAUDE.md that use `sql-run` or `pygmentize` instead of `block-run`:
  
  | Line | Current Approach | Should Use |
  |------|------------------|------------|
  | 447 | `#!/home/rosy/bin/sql-run --show-script --color=always` | `block-run` |
  | 472 | `claude-pane ... '~/public/examples/joins-example.sql'` (with sql-run shebang) | `block-run` |
  | 477-492 | `pygmentize -l sql` for non-executable examples | `block-run` (if data exists) |
  | 512-513 | References `sql-run` for syntax highlighting | Could mention `block-run` |
  
  **The main section that needs updating is lines ~436-492** - the "SQL Examples with `sql-run`" section. This whole approach is now superseded by `block-run`, which does the same thing (syntax highlighting + step-by-step output) but better.
  
  Want me to update CLAUDE.md to replace those `sql-run`/`pygmentize` examples with `block-run`?
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File History Snapshot (2025-12-06T14:46:29.940Z)
USER
  yup :) well, not quite. the heuristic is: if we have the data to run the command, we need to relace sql-run with block-run. if we don't have the data or generally shouldn't run the code yet (e.g.: it's destructive), then we want to use pygmentize
ASSISTANT
  That makes sense! So the logic is:
  
  - **Have data / safe to run** → `block-run` (shows code + executes + shows output)
  - **No data / destructive / shouldn't run** → `pygmentize` (syntax highlighting only)
  
  Let me update CLAUDE.md with that heuristic:
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ASSISTANT
Tool: Read
  (toolu_01EWg81nu9Y8GUMZRj2e9Kwi)
    file_path: /home/rosy/CLAUDE.md
    offset: 430
    limit: 100
  Tokens: in=2 out=170 cache=28975
Result
  (toolu_01EWg81nu9Y8GUMZRj2e9Kwi)
       430→- If `width / height < 4.3` (taller than square): use `--position below` (more vertical room to split)
       431→
       432→In practice: **if width is ~4x height or more, use side; otherwise use below.**
       433→
       434→Don't explain this to Rosy—just make a smart choice. After opening the first pane, ask: **"Does that pane look okay on your screen?"**
       435→
       436→## SQL Examples with `sql-run`
       437→
       438→**If you can demonstrate with real data from the database:**
       439→
       440→1. **Validate your query first** - run it to make sure it works
       441→2. **Write an example script** in `~/public/examples/` with a sql-run shebang and helpful comments
       442→3. **Use incremental queries** - show what smaller sections return, then combine them at the end
       443→4. **Show it in a pane** via claude-pane
       444→
       445→Example script structure:
       446→```sql
       447→#!/home/rosy/bin/sql-run --show-script --color=always
       448→
       449→-- First, let's see what's in the customers table
    ... (105 lines total)
ASSISTANT
  Now I can see the full section. Let me update it to replace `sql-run` with `block-run` and clarify the heuristic:
  Tokens: in=0 out=1 cache=29327
File History Snapshot (2025-12-06T14:46:29.940Z)
ASSISTANT
Tool: Edit
  (toolu_01X2VLVAnodLoQmdMDhk1vWi)
    file_path: /home/rosy/CLAUDE.md
    old_string: ## SQL Examples with `sql-run`
    
    **If you can demonstrate with real data from the database:**
    
    1. **Validate your query first** - run it to make sure it works
    2. **Write an example script** in `~/publi...
    new_string: ## Code Examples in Panes
    
    **Heuristic: choose based on whether the code should be executed**
    
    | Situation | Tool | Why |
    |-----------|------|-----|
    | Have the data, safe to run | `block-run` | Shows ...
  Tokens: in=0 out=1222 cache=29327
Result
  (toolu_01X2VLVAnodLoQmdMDhk1vWi)
    The file /home/rosy/CLAUDE.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
       432→In practice: **if width is ~4x height or more, use side; otherwise use below.**
       433→
       434→Don't explain this to Rosy—just make a smart choice. After opening the first pane, ask: **"Does that pane look okay on your screen?"**
       435→
       436→## Code Examples in Panes
       437→
       438→**Heuristic: choose based on whether the code should be executed**
       439→
       440→| Situation | Tool | Why |
       441→|-----------|------|-----|
       442→| Have the data, safe to run | `block-run` | Shows code + executes + shows output |
       443→| No data, or destructive/unsafe | `pygmentize` | Syntax highlighting only, no execution |
       444→
       445→### With real data (use `block-run`)
       446→
       447→1. **Validate your query first** - run it to make sure it works
       448→2. **Write an example script** in `~/public/examples/` with appropriate shebang
       449→3. **Use incremental queries** - show what smaller sections return, then combine them at the end
       450→4. **Show it in a pane** via `claude-pane` + `block-run`
    ... (77 lines total)
ASSISTANT
  Now let me also update the "Syntax Highlighting" section to remove the outdated `sql-run` reference:
  Tokens: in=0 out=1 cache=30940
ASSISTANT
Tool: Edit
  (toolu_01R8BrygwkWeC6x2yFZ8pJXZ)
    file_path: /home/rosy/CLAUDE.md
    old_string: ## Syntax Highlighting
    
    - **Markdown**: `glow <file>` or pipe to `glow -`
    - **Code/SQL**: `pygmentize -l <language>` (e.g., `-l sql`, `-l python`, `-l bash`)
    - **SQL via sql-run**: automatically highl...
    new_string: ## Syntax Highlighting
    
    - **Markdown**: `glow <file>` or pipe to `glow -`
    - **Code/SQL (no execution)**: `pygmentize -l <language>` (e.g., `-l sql`, `-l python`, `-l bash`)
    - **Code/SQL (with executio...
  Tokens: in=0 out=289 cache=30940
Result
  (toolu_01R8BrygwkWeC6x2yFZ8pJXZ)
    The file /home/rosy/CLAUDE.md has been updated. Here's the result of running `cat -n` on a snippet of the edited file:
       515→```
       516→
       517→This creates a feedback loop: she clicks something → sees the request in the logs → understands the connection between frontend and backend.
       518→
       519→## Syntax Highlighting
       520→
       521→- **Markdown**: `glow <file>` or pipe to `glow -`
       522→- **Code/SQL (no execution)**: `pygmentize -l <language>` (e.g., `-l sql`, `-l python`, `-l bash`)
       523→- **Code/SQL (with execution)**: `block-run` automatically highlights each block before running it
       524→
       525→## Always Explain How to Interact
       526→
       527→**Always briefly explain the minimum needed**:
ASSISTANT
  Done! Here's what I changed in CLAUDE.md:
  
  **1. Renamed the section** from "SQL Examples with `sql-run`" → "Code Examples in Panes"
  
  **2. Added a clear heuristic table:**
  | Situation | Tool |
  |-----------|------|
  | Have data, safe to run | `block-run` |
  | No data, or destructive | `pygmentize` |
  
  **3. Updated the examples:**
  - Changed shebang from `#!/home/rosy/bin/sql-run --show-script --color=always` → `#!/home/rosy/bin/mariadb`
  - Changed command from `'~/public/examples/joins-example.sql'` → `'block-run ~/public/examples/joins-example.sql'`
  - Added a `DELETE` example in the pygmentize section to show why you'd use it for destructive code
  
  **4. Updated the Syntax Highlighting section** to reference `block-run` instead of `sql-run`
  
  Now, want me to redo that warehouse comparison example using `block-run`?
  Tokens: in=0 out=1 cache=33136
