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Mark LEFT out of scope

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Paul Masurel
2026-08-18 15:37:54 +02:00
parent c58d3ee657
commit 3c690bac94
1 changed files with 5 additions and 2 deletions
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jitexpr/docs/FUNCTIONS.md
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@@ -51,7 +51,7 @@ excluded from this pass, or is complex enough to warrant a separate implementati
| 35 | `SQRT` | out-of-scope |
| 38 | `MIN` | done |
| 39 | `MAX` | done |
| 40 | `LEFT` | pending |
| 40 | `LEFT` | out-of-scope |
| 41 | `RIGHT` | pending |
| 42 | `SUBSTRING` | pending |
| 43 | `SPLIT_BEFORE` | pending |
@@ -76,7 +76,7 @@ excluded from this pass, or is complex enough to warrant a separate implementati
| 79 | `SUBSTRING_COUNT` | pending |
| 80 | `REGEXP_LIKE` | pending |
Progress: **25 / 41 in-scope** functions implemented; **14** functions are out-of-scope.
Progress: **25 / 40 in-scope** functions implemented; **15** functions are out-of-scope.
## Deferred implementation notes
@@ -102,3 +102,6 @@ Progress: **25 / 41 in-scope** functions implemented; **14** functions are out-o
- `SQRT` has a contradictory production type contract: the dd-go type checker returns the selected
input type (including integer), while the registry declares a `float64` output and both integer
and float kernels write `float64`. It is deferred until one of those contracts is chosen.
- `LEFT` counts raw UTF-8 bytes and may split a code point. Representing its exact output as
jitexpr's valid Rust `str` would be unsound, while rounding to a character boundary would diverge
from production.