docs: fix the "global matching" regex flag to "g"

[nexdrew]

Also reinstate "i" as the "case-insensitive" flag and preserve alphabetical order of flags in table.

Closes #27107.

[cockroach-teamcity]

This change is 

[CLAassistant]

All committers have signed the CLA.

[benesch]

Thanks for the contribution! The build is failing the auto-generated HTML version of these docs, in docs/generated/sql/functions.md, that needs to be updated. If you run make build, you should see a diff like this get generated:

--- a/docs/generated/sql/functions.md
+++ b/docs/generated/sql/functions.md
@@ -777,8 +777,12 @@ has no relationship with the commit order of concurrent transactions.</p>
 <td>Case-sensitive matching</td>
 </tr>
 <tr>
+<td><strong>g</strong></td>
+<td>Global matching (match each substring instead of only the first)</td>
+</tr>
+<tr>
 <td><strong>i</strong></td>
-<td>Global matching (match each substring instead of only the first).</td>
+<td>Case-insensitive matching</td>
 </tr>
 <tr>
 <td><strong>m</strong> or <strong>n</strong></td>

Commit that, amend, and push and we'll be good to go. (You can also hit the "Allow edits from maintainers" checkbox on GitHub to allow us to make the change ourselves.)

[nexdrew]

@benesch Done. Thanks for the tip!

[benesch]

Thank you! Looks good. One last nit: we like to keep our commit history tidy, so could you squash those two commits into one? (Again, happy to do this on your behalf if you check that box.)

[nexdrew]

Ok, but why not just Squash and Merge in GitHub?

Also, from my end, it looks like the checkbox is checked.

[benesch]

Ok, but why not just Squash and Merge in GitHub?

We use a merge bot, Bors—who'll you'll meet shortly—to prevent merge skew, and Bors doesn't support squashing, unfortunately.

Also, from my end, it looks like the checkbox is checked.

Oh, you're absolutely right. My apologies. I seem to have been pushing to the wrong branch on your remote. I've squashed it now.

Thanks again for your contribution, @nexdrew!

bors r+

[craig]

Build succeeded

• GitHub CI (Cockroach)