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docs: clarify CHAR padding behavior#23367

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omribz156:docs/char-padding-changefeed-note
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docs: clarify CHAR padding behavior#23367
omribz156 wants to merge 1 commit into
cockroachdb:mainfrom
omribz156:docs/char-padding-changefeed-note

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Summary:

  • Clarify that CHAR(n) values can be displayed to SQL clients with trailing padding, while SQL expressions evaluate trailing spaces as insignificant.
  • Add a changefeed note explaining that trailing padding is not emitted unless explicitly restored in the changefeed query.
  • Apply the update across the current versioned string.md pages.

Verification:

  • git diff --check
  • Confirmed the previous misleading sentence no longer appears in src/current/*/string.md.
  • Confirmed the new changefeed note appears in 11 versioned string.md pages.
  • make vale could not be run locally because make is not installed in this Windows shell.

This was prepared with Codex assistance, with the final diff reviewed before opening.

Fixes #23365

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Docs: CHAR(n) trailing-space behavior is misleading and CDC impact is undocumented

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