Implement commit_order in dolt_log system table and table function

[timsehn]

This PR implements: #9145. This is implemented using Claude Code.

A customer asked for the commit order in the dolt_log system table. We have that information as we generate the commit log in the height variable. This exposes that variable as a column populated for each commit.

$ dolt sql -q "select * from dolt_log limit 3"
+----------------------------------+--------------------+-----------------------------------+---------------------+--------------------------------------+--------------+
| commit_hash                      | committer          | email                             | date                | message                              | commit_order |
+----------------------------------+--------------------+-----------------------------------+---------------------+--------------------------------------+--------------+
| iifq0hvp5fis9ld2lnhorqr5l697ph38 | post-no-preference | post.no.preference@protonmail.com | 2025-05-23 06:34:26 | volatility_history 2025-05-22 update | 1427         |
| 62n14k63lu5jcc3a3qr18q8ku19e8g8q | post-no-preference | post.no.preference@protonmail.com | 2025-05-23 06:34:15 | option_chain 2025-05-22 update       | 1426         |
| 2paehofana33lbbbjnqa18v3nlsvbgbk | post-no-preference | post.no.preference@protonmail.com | 2025-05-22 06:34:38 | volatility_history 2025-05-21 update | 1425         |
+----------------------------------+--------------------+-----------------------------------+---------------------+--------------------------------------+--------------+

[coffeegoddd]

@coffeegoddd DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
51d9615	ok	5937457

version	total_tests
51d9615	5937457

correctness_percentage
100.0

[coffeegoddd]

@coffeegoddd DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
b98bbdf	ok	5937457

version	total_tests
b98bbdf	5937457

correctness_percentage
100.0

[coffeegoddd]

@timsehn DOLT

comparing_percentages
100.000000 to 100.000000

version	result	total
92991fb	ok	5937457

version	total_tests
92991fb	5937457

correctness_percentage
100.0

[timsehn]

I manually tested this and it seems to work:

$ dolt init --fun
Successfully initialized dolt data repository.
$ dolt sql -q "select * from dolt_log"
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+
| commit_hash                      | committer | email           | date                | message                    | commit_order |
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+
| d0lt4bas03smpcqv3nhig1aa7monspp8 | timsehn   | tim@dolthub.com | 2025-05-27 22:53:08 | Іnіtіalіzе datа repositоry | 1            |
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+

$ dolt commit --allow-empty -m "Another" 
commit 50ipro4d1hd1kcnbgbf95n7oi305laql (HEAD -> main) 
Author: timsehn <tim@dolthub.com>
Date:  Tue May 27 15:53:41 -0700 2025

        Another

$ dolt sql -q "select * from dolt_log"   
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+
| commit_hash                      | committer | email           | date                | message                    | commit_order |
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+
| 50ipro4d1hd1kcnbgbf95n7oi305laql | timsehn   | tim@dolthub.com | 2025-05-27 22:53:41 | Another                    | 2            |
| d0lt4bas03smpcqv3nhig1aa7monspp8 | timsehn   | tim@dolthub.com | 2025-05-27 22:53:08 | Іnіtіalіzе datа repositоry | 1            |
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+

$ dolt branch b1
$ dolt commit --allow-empty -m "Another main" 
commit 8n4gk4eoil6le7nvhgno1tk0kqiosurn (HEAD -> main) 
Author: timsehn <tim@dolthub.com>
Date:  Tue May 27 15:54:02 -0700 2025

        Another main

$ dolt checkout b1
Switched to branch 'b1'
$ dolt commit --allow-empty -m "Another b1"   
commit 247541rgkebo3bpbnvfd81ql6hfe40np (HEAD -> b1) 
Author: timsehn <tim@dolthub.com>
Date:  Tue May 27 15:54:15 -0700 2025

        Another b1

$ dolt sql -q "select * from dolt_log"        
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+
| commit_hash                      | committer | email           | date                | message                    | commit_order |
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+
| 247541rgkebo3bpbnvfd81ql6hfe40np | timsehn   | tim@dolthub.com | 2025-05-27 22:54:15 | Another b1                 | 3            |
| 50ipro4d1hd1kcnbgbf95n7oi305laql | timsehn   | tim@dolthub.com | 2025-05-27 22:53:41 | Another                    | 2            |
| d0lt4bas03smpcqv3nhig1aa7monspp8 | timsehn   | tim@dolthub.com | 2025-05-27 22:53:08 | Іnіtіalіzе datа repositоry | 1            |
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+

$ dolt checkout main
Switched to branch 'main'
$ dolt sql -q "select * from dolt_log"
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+
| commit_hash                      | committer | email           | date                | message                    | commit_order |
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+
| 8n4gk4eoil6le7nvhgno1tk0kqiosurn | timsehn   | tim@dolthub.com | 2025-05-27 22:54:02 | Another main               | 3            |
| 50ipro4d1hd1kcnbgbf95n7oi305laql | timsehn   | tim@dolthub.com | 2025-05-27 22:53:41 | Another                    | 2            |
| d0lt4bas03smpcqv3nhig1aa7monspp8 | timsehn   | tim@dolthub.com | 2025-05-27 22:53:08 | Іnіtіalіzе datа repositоry | 1            |
+----------------------------------+-----------+-----------------+---------------------+----------------------------+--------------+

$ dolt merge --no-ff b1
Updating kf9jk3glcs8levjbdtufie1uvfpbvbgg..247541rgkebo3bpbnvfd81ql6hfe40np
Everything up-to-date
$ dolt sql -q "select * from dolt_log"
+----------------------------------+-----------+-----------------+---------------------+-----------------------------+--------------+
| commit_hash                      | committer | email           | date                | message                     | commit_order |
+----------------------------------+-----------+-----------------+---------------------+-----------------------------+--------------+
| kf9jk3glcs8levjbdtufie1uvfpbvbgg | timsehn   | tim@dolthub.com | 2025-05-27 22:54:47 | Merge branch 'b1' into main | 4            |
| 247541rgkebo3bpbnvfd81ql6hfe40np | timsehn   | tim@dolthub.com | 2025-05-27 22:54:15 | Another b1                  | 3            |
| 8n4gk4eoil6le7nvhgno1tk0kqiosurn | timsehn   | tim@dolthub.com | 2025-05-27 22:54:02 | Another main                | 3            |
| 50ipro4d1hd1kcnbgbf95n7oi305laql | timsehn   | tim@dolthub.com | 2025-05-27 22:53:41 | Another                     | 2            |
| d0lt4bas03smpcqv3nhig1aa7monspp8 | timsehn   | tim@dolthub.com | 2025-05-27 22:53:08 | Іnіtіalіzе datа repositоry  | 1            |
+----------------------------------+-----------+-----------------+---------------------+-----------------------------+--------------+

$ dolt commit --allow-empty -m "Another main" 
commit mofkhajnmboief6p6dgip4lhshptj1k5 (HEAD -> main) 
Author: timsehn <tim@dolthub.com>
Date:  Tue May 27 15:55:12 -0700 2025

        Another main

$ dolt sql -q "select * from dolt_log"        
+----------------------------------+-----------+-----------------+---------------------+-----------------------------+--------------+
| commit_hash                      | committer | email           | date                | message                     | commit_order |
+----------------------------------+-----------+-----------------+---------------------+-----------------------------+--------------+
| mofkhajnmboief6p6dgip4lhshptj1k5 | timsehn   | tim@dolthub.com | 2025-05-27 22:55:12 | Another main                | 5            |
| kf9jk3glcs8levjbdtufie1uvfpbvbgg | timsehn   | tim@dolthub.com | 2025-05-27 22:54:47 | Merge branch 'b1' into main | 4            |
| 247541rgkebo3bpbnvfd81ql6hfe40np | timsehn   | tim@dolthub.com | 2025-05-27 22:54:15 | Another b1                  | 3            |
| 8n4gk4eoil6le7nvhgno1tk0kqiosurn | timsehn   | tim@dolthub.com | 2025-05-27 22:54:02 | Another main                | 3            |
| 50ipro4d1hd1kcnbgbf95n7oi305laql | timsehn   | tim@dolthub.com | 2025-05-27 22:53:41 | Another                     | 2            |
| d0lt4bas03smpcqv3nhig1aa7monspp8 | timsehn   | tim@dolthub.com | 2025-05-27 22:53:08 | Іnіtіalіzе datа repositоry  | 1            |
+----------------------------------+-----------+-----------------+---------------------+-----------------------------+--------------+

[fulghum]

Good job Claude! 👏