add bindings of subscript function #1562
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Signed-off-by: usamoi <usamoi@outlook.com>
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workingjubilee
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Mar 1, 2024
Welcome to pgrx 0.12.0-alpha.1! Say the magic words with me! ```shell cargo install cargo-pgrx --locked --version 0.12.0-alpha.1 ``` # Breaking Changes ## No more dlopen! Perhaps the most exciting change this round is @usamoi's contribution in #1468 which means that we no longer perform a `dlopen` in order to generate the schema. The cost, such as it is, is that your pgrx extensions now require a `src/bin/pgrx_embed.rs`, which will be used to generate the schema. This has much less cross-platform issues and will enable supporting things like `cargo binstall` down the line. It may be a bit touchy on first-time setup for transitioning older repos. If necessary, you may have to directly add a `src/bin/pgrx_embed.rs` and add the following code (which should be the only code in the file, though you can add comments if you like?): ```rust ::pgrx::pgrx_embed!(); ``` Your Cargo.toml will also want to update its crate-type key for the library: ```toml [lib] crate-type = ["cdylib", "lib"] ``` ## Library Code - pgrx-pg-sys will now use `ManuallyDropUnion` thanks to @NotGyro in #1547 - VARHDRSZ `const`s are no longer `fn`, thanks to @workingjubilee in #1584 - We no longer have `Interval::is_finite` since #1594 - We translate more `*_tree_walker` functions to the same signature their `*_impl` version in Postgres 16 has: #1596 - Thanks to @eeeebbbbrrrr in #1591 we no longer have the `pg_sql_graph_magic!()` macro, which should help with more things in the future! # What's New We have quite a lot of useful additions to our API: - `SpiClient::prepare_mut` was added thanks to @XeniaLu in #1275 - @usamoi also contributed bindings subscripting code in #1562 - For `#[pg_test]`, you have been able to use `#[should_panic(expected = "string")]` to anticipate a panic that contains that string in that test. For various reasons, `#[pg_test(error = "string")]` is much the same. Now, you can also use `#[pg_test(expected = "string")]`, in the hopes that is easier to stumble across, as of #1570 ## `Result<composite_type!("..."), E>` support - In #1560 @NotGyro contributed support for using `Result<composite_type!("Name"), E>`, as a case that had not been handled before. ## Significantly expanded docs Thanks to @rjuju, @NotGyro, and @workingjubilee, we now have significantly expanded docs for cargo-pgrx and pgrx in general. Some of these are in the API docs on https://docs.rs or the READMEs, but there's also a guide, now! It's not currently published, but is available as an [mdbook](https://github.com/rust-lang/mdBook) in the repo. Some diagnostic information that is also arguably documentation, like comments and the suggestion to `cargo install`, have also been improved, thanks to @workingjubilee in - #1579 - #1573 ## `#[pg_cast]` An experimental macro for a `CREATE CAST` was contributed by @xwkuang5 in #1445! ## Legal Stuff Thanks to @the-kenny in #1490 and @workingjubilee in #1504, it was brought to our attention that some dependencies had unusual legal requirements. So we fixed this with CI! We now check our code included into pgrx-using binaries is MIT/Apache 2.0 licensed, as is common across crates.io, using `cargo deny`!. The build tools will have more flexible legal requirements (partly due to the use of Mozilla Public License code in rustls). # Internal Changes Many internal cleanups were done thanks to - @workingjubilee in too many PRs to count! - @thomcc found a needless condition in #1501 - @nyurik in too many PRs to count! In particular: - we now actually `pfree` our `Array`s we detoasted as-of #1571 - creating a `RawArray` is now low-overhead due to #1587 ## Soundness Fixes We had a number of soundness issues uncovered or have added more tests to catch them. - Bounds-checking debug assertions for array access by @NotGyro in #1514 - Fix unsound `&` and `&mut` in `fcinfo.rs` by @workingjubilee in #1595 ## Less Deps Part of the cleanup by @workingjubilee was reducing the number of deps we compile: * cargo-pgrx: reduce trivial dep usages in #1499 * Update 2 syn in #1557 Hopefully it will reduce compile time and disk usage! ## New Contributors * @the-kenny made their first contribution in #1490 * @xwkuang5 made their first contribution in #1445 * @rjuju made their first contribution in #1516 * @nyurik made their first contribution in #1533 * @NotGyro made their first contribution in #1514 * @XeniaLu made their first contribution in #1275 **Full Changelog**: v0.12.0-alpha.0...v0.12.0-alpha.1
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Add bindings of supporting subscript access for user-defined types, eg.
udf_type_value[1]. It's supported since PostgreSQL 14.Ref: https://www.postgresql.org/docs/current/sql-createtype.html