[DylanModesitt]

Digit-only dates such as 20190101 infer as integers when only dateformat="yyyymmdd" is provided. Clarify that numeric detection takes precedence, and show types=Dict(:date => Date) so callers can request dates.

Adapted from @DylanModesitt's original clarification for #1040 to the current documentation. This changes two documentation files and preserves type inference.

Validation: strict full documentation builds on Julia 1.10.11 and 1.13.1, including the new example's type and value assertions. Public checks cover both integer-like yyyymmdd and floating-point-like yyyy.mm data, with string, DateFormat, and per-column dictionary formats on both versions. All 18 exact-head checks pass (16 native jobs and both coverage checks). All nine coverage uploads were accepted for 32b2c2ce8a697683726169996d1e0f3af60302c9 in JuliaData/CSV.jl and processed, with 95.75% coverage. Merge still requires independent approval.

Co-authored by Codex

AI disclosure: This work was prepared with assistance from OpenAI Codex.

[quinnj]

[Reviewed by AI] Scoped review of the documentation change at df3ffe8.

The clarification still matches current main (ff0c032): on Julia 1.12.6, yyyymmdd input infers Int64, and yyyy.mm input infers Float64. Adding types=Dict(:date => Date) parses both as dates. Include that explicit-type example so readers can act on the warning.

Please rebase or transplant the small documentation change into the current “Missing values and value syntax” section. GitHub currently reports this PR as conflicting, with 145 changed files; the intended commit changes only the dateformat documentation. I tested the examples on current main, not the historical PR's full suite.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.75%. Comparing base (a0335ff) to head (32b2c2c).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1042   +/-   ##
=======================================
  Coverage   95.75%   95.75%           
=======================================
  Files           9        9           
  Lines        5489     5489           
=======================================
  Hits         5256     5256           
  Misses        233      233           

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[quinnj]

[comment generated via AI] Verified on current main with Julia 1.12: yyyymmdd digits infer as Int64 with only dateformat, types=Dict(:date => Date) reads them as dates, and the docs build runs the new example. Thanks @DylanModesitt.