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impl FromDatum for CString #1896

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workingjubilee
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As much as I would like FromDatum to unexist, it should probably be usable for all std types we even half-support, especially since it's less dubious, in several ways, than the &'a CStr impl.

@workingjubilee workingjubilee changed the title impl FromDatum for CString impl FromDatum for CString Oct 1, 2024
@YohDeadfall
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What do you have in your mind about FromDatum? How should it e done otherwise? It might be a dumb question, but I really would like to get the direction you're moving on to avoid conflicts.

@workingjubilee
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@YohDeadfall It can't enforce lifetimes, that's all.

@workingjubilee workingjubilee merged commit f07f840 into pgcentralfoundation:develop Oct 1, 2024
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@workingjubilee workingjubilee deleted the I-c-strings branch October 1, 2024 17:27
eeeebbbbrrrr added a commit that referenced this pull request Oct 14, 2024
Welcome to pgrx v0.12.6. This releases fixes a number of bugs, cleans up
various parts of the code, adds more Postgres `#include` headers, and
other little things.

To upgrade, first install cargo-pgrx with `cargo install cargo-pgrx
--version 0.12.6 --locked`. Then you can run `cargo pgrx upgrade` in
your extension's crate to update its dependencies.

## What's Changed
* Removed extra allocation from `IntoDatum for char` by @YohDeadfall in
#1887
* Fixed IntoDatum impl for char introduced by #1887 by @YohDeadfall in
#1889
* Support refs to unsized SqlTranslatable types by @workingjubilee in
#1890
* Nullable is Copy when T is Copy by @workingjubilee in
#1884
* Macro based IntoDatum for string types by @YohDeadfall in
#1886
* `impl FromDatum for CString` by @workingjubilee in
#1896
* Add `BorrowDatum` for unsizing borrows of datums by @workingjubilee in
#1891
* Always panic if len of varlena exceeds the maximum by @YohDeadfall in
#1894
* Use cstr literal syntax to avoid unsafe and ??? by @workingjubilee in
#1898
* Implement UnboxDatum for ItemPointerData by @syvb in
#1900
* fix compilation on some CPUs and Windows by @usamoi in
#1901
* docs: update generic type name of TableIterator by @SteveLauC in
#1905
* Remove Python workaround for Homebrew by @workingjubilee in
#1908
* Improved messages for json errors by @YohDeadfall in
#1893
* Adds more headers by @aykut-bozkurt in
#1910
* docs: align description of GucContext::SuBackend and
GucContext::Backend with original PostgreSQL description by @mrl5 in
#1909
* docs: update outdated README by @SteveLauC in
#1914
* fix compilation on emscripten by @usamoi in
#1917
* feat: include 'storage/indexfsm.h' by @SteveLauC in
#1912
* refactor: more CStr literals by @SteveLauC in
#1911
* fix segfault with empty `numrange` during `from_datum()` by
@eeeebbbbrrrr in #1918

## New Contributors
* @mrl5 made their first contribution in
#1909

**Full Changelog**:
v0.12.5...v0.12.6
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2 participants