chore: Fix warnings for custom postgres_## cfg flags (#3950)

* chore: Fix warnings for custom postgres_## cfg flags

Signed-off-by: Joshua Potts <8704475+iamjpotts@users.noreply.github.com>

* pr feedback - reorder cfg allowance; enable test_pg_copy_chunked test

Signed-off-by: Joshua Potts <8704475+iamjpotts@users.noreply.github.com>

* refactor(postgres): Remove two more deprecated cfg flag uses (from docstrings)

Signed-off-by: Joshua Potts <8704475+iamjpotts@users.noreply.github.com>

* refactor(ci): Use separate job for postgres ssl auth tests

Signed-off-by: Joshua Potts <8704475+iamjpotts@users.noreply.github.com>

---------

Signed-off-by: Joshua Potts <8704475+iamjpotts@users.noreply.github.com>

Author: iamjpotts

.github/workflows/sqlx.yml

@@ -221,9 +221,7 @@ jobs:
       - uses: Swatinem/rust-cache@v2
 
       - env:
-          # FIXME: needed to disable `ltree` tests in Postgres 9.6
-          # but `PgLTree` should just fall back to text format
-          RUSTFLAGS: -D warnings --cfg postgres_${{ matrix.postgres }}
+          RUSTFLAGS: -D warnings --cfg postgres="${{ matrix.postgres }}"
         run: >
           cargo build 
           --no-default-features
@@ -245,9 +243,7 @@ jobs:
         env:
           DATABASE_URL: postgres://postgres:password@localhost:5432/sqlx
           SQLX_OFFLINE_DIR: .sqlx
-          # FIXME: needed to disable `ltree` tests in Postgres 9.6
-          # but `PgLTree` should just fall back to text format
-          RUSTFLAGS: --cfg postgres_${{ matrix.postgres }}
+          RUSTFLAGS: --cfg postgres="${{ matrix.postgres }}"
 
       # Run the `test-attr` test again to cover cleanup.
       - run: >
@@ -258,9 +254,7 @@ jobs:
         env:
           DATABASE_URL: postgres://postgres:password@localhost:5432/sqlx
           SQLX_OFFLINE_DIR: .sqlx
-          # FIXME: needed to disable `ltree` tests in Postgres 9.6
-          # but `PgLTree` should just fall back to text format
-          RUSTFLAGS: --cfg postgres_${{ matrix.postgres }}
+          RUSTFLAGS: --cfg postgres="${{ matrix.postgres }}"
 
       - if: matrix.tls != 'none'
         run: >
@@ -270,9 +264,7 @@ jobs:
         env:
           DATABASE_URL: postgres://postgres:password@localhost:5432/sqlx?sslmode=verify-ca&sslrootcert=.%2Ftests%2Fcerts%2Fca.crt
           SQLX_OFFLINE_DIR: .sqlx
-          # FIXME: needed to disable `ltree` tests in Postgres 9.6
-          # but `PgLTree` should just fall back to text format
-          RUSTFLAGS: --cfg postgres_${{ matrix.postgres }}
+          RUSTFLAGS: --cfg postgres="${{ matrix.postgres }}"
 
       # Remove test artifacts
       - run: cargo clean -p sqlx
@@ -286,9 +278,7 @@ jobs:
         env:
           SQLX_OFFLINE: true
           SQLX_OFFLINE_DIR: .sqlx
-          # FIXME: needed to disable `ltree` tests in Postgres 9.6
-          # but `PgLTree` should just fall back to text format
-          RUSTFLAGS: -D warnings --cfg postgres_${{ matrix.postgres }}
+          RUSTFLAGS: -D warnings --cfg postgres="${{ matrix.postgres }}"
 
       # Test macros in offline mode (still needs DATABASE_URL to run)
       - run: >
@@ -300,9 +290,7 @@ jobs:
           DATABASE_URL: postgres://postgres:password@localhost:5432/sqlx
           SQLX_OFFLINE: true
           SQLX_OFFLINE_DIR: .sqlx
-          # FIXME: needed to disable `ltree` tests in Postgres 9.6
-          # but `PgLTree` should just fall back to text format
-          RUSTFLAGS: --cfg postgres_${{ matrix.postgres }}
+          RUSTFLAGS: --cfg postgres="${{ matrix.postgres }}"
 
   postgres-ssl-auth:
     name: Postgres SSL Auth
@@ -334,9 +322,7 @@ jobs:
           --features any,postgres,macros,_unstable-all-types,runtime-${{ matrix.runtime }},tls-${{ matrix.tls }}
         env:
           DATABASE_URL: postgres://postgres@localhost:5432/sqlx?sslmode=verify-ca&sslrootcert=.%2Ftests%2Fcerts%2Fca.crt&sslkey=.%2Ftests%2Fcerts%2Fkeys%2Fclient.key&sslcert=.%2Ftests%2Fcerts%2Fclient.crt
-          # FIXME: needed to disable `ltree` tests in Postgres 9.6
-          # but `PgLTree` should just fall back to text format
-          RUSTFLAGS: --cfg postgres_${{ matrix.postgres }}_client_ssl
+          RUSTFLAGS: --cfg postgres="${{ matrix.postgres }}"
 
   mysql:
     name: MySQL

Cargo.toml

@@ -244,6 +244,7 @@ disallowed_methods = 'deny'
 level = 'warn'
 check-cfg = [
     'cfg(mariadb, values(any()))',
+    'cfg(postgres, values(any()))',
     'cfg(sqlite_ipaddr)',
     'cfg(sqlite_test_sqlcipher)',
 ]
@@ -434,7 +435,6 @@ name = "postgres-migrate"
 path = "tests/postgres/migrate.rs"
 required-features = ["postgres", "macros", "migrate"]
 
-
 [[test]]
 name = "postgres-query-builder"
 path = "tests/postgres/query_builder.rs"

sqlx-core/src/acquire.rs

@@ -13,9 +13,8 @@ use std::ops::{Deref, DerefMut};
 /// connection or [`begin`][`Acquire::begin`] a transaction, then you can do it
 /// like that:
 ///
-/// ```rust
+/// ```rust,ignore
 /// # use sqlx::{Acquire, postgres::Postgres, error::BoxDynError};
-/// # #[cfg(any(postgres_9_6, postgres_15))]
 /// async fn run_query<'a, A>(conn: A) -> Result<(), BoxDynError>
 /// where
 ///     A: Acquire<'a, Database = Postgres>,
@@ -32,10 +31,9 @@ use std::ops::{Deref, DerefMut};
 /// If you run into a lifetime error about "implementation of `sqlx::Acquire` is
 /// not general enough", the [workaround] looks like this:
 ///
-/// ```rust
+/// ```rust,ignore
 /// # use std::future::Future;
 /// # use sqlx::{Acquire, postgres::Postgres, error::BoxDynError};
-/// # #[cfg(any(postgres_9_6, postgres_15))]
 /// fn run_query<'a, 'c, A>(conn: A) -> impl Future<Output = Result<(), BoxDynError>> + Send + 'a
 /// where
 ///     A: Acquire<'c, Database = Postgres> + Send + 'a,
@@ -55,9 +53,8 @@ use std::ops::{Deref, DerefMut};
 /// connection as an argument to a function, then it's easier to just accept a
 /// mutable reference to a database connection like so:
 ///
-/// ```rust
+/// ```rust,ignore
 /// # use sqlx::{postgres::PgConnection, error::BoxDynError};
-/// # #[cfg(any(postgres_9_6, postgres_15))]
 /// async fn run_query(conn: &mut PgConnection) -> Result<(), BoxDynError> {
 ///     sqlx::query!("SELECT 1 as v").fetch_one(&mut *conn).await?;
 ///     sqlx::query!("SELECT 2 as v").fetch_one(&mut *conn).await?;

sqlx-core/src/database.rs

@@ -12,7 +12,7 @@
 //! | [MariaDB] | 10.1+ | [`mysql`] |
 //! | [Microsoft SQL Server] | 2019 | [`mssql`] (Pending a full rewrite) |
 //! | [MySQL] | 5.6, 5.7, 8.0 | [`mysql`] |
-//! | [PostgreSQL] | 9.5+ | [`postgres`] |
+//! | [PostgreSQL] | 13+ | [`postgres`] |
 //! | [SQLite] | 3.20.1+ | [`sqlite`] |
 //!
 //! [MariaDB]: https://mariadb.com/

sqlx-postgres/src/types/array.rs

@@ -205,8 +205,8 @@ where
                 }
 
                 // appears to have been used in the past to communicate potential NULLS
-                // but reading source code back through our supported postgres versions (9.5+)
-                // this is never used for anything
+                // but reading source code back through our historically supported
+                // postgres versions (9.5+) this is never used for anything
                 let _flags = buf.get_i32();
 
                 // the OID of the element

tests/postgres/postgres.rs

@@ -2142,6 +2142,8 @@ create temporary table person(
     assert_eq!(people, p_query);
     Ok(())
 }
+
+#[sqlx_macros::test]
 async fn test_pg_copy_chunked() -> anyhow::Result<()> {
     let mut conn = new::<Postgres>().await?;
 

tests/postgres/types.rs

@@ -519,7 +519,7 @@ test_type!(numrange_bigdecimal<PgRange<sqlx::types::BigDecimal>>(Postgres,
          Bound::Excluded("2.4".parse::<sqlx::types::BigDecimal>().unwrap())))
 ));
 
-#[cfg(any(postgres_14, postgres_15))]
+#[cfg(not(postgres = "13"))]
 test_type!(cube<sqlx::postgres::types::PgCube>(Postgres,
     "cube(2)" == sqlx::postgres::types::PgCube::Point(2.),
     "cube(2.1)" == sqlx::postgres::types::PgCube::Point(2.1),
@@ -530,51 +530,43 @@ test_type!(cube<sqlx::postgres::types::PgCube>(Postgres,
     "cube(array[2,3,4],array[4,5,6])" == sqlx::postgres::types::PgCube::MultiDimension(vec![vec![2.,3.,4.],vec![4.,5.,6.]]),
 ));
 
-#[cfg(any(postgres_14, postgres_15))]
+#[cfg(not(postgres = "13"))]
 test_type!(_cube<Vec<sqlx::postgres::types::PgCube>>(Postgres,
     "array[cube(2),cube(2)]" == vec![sqlx::postgres::types::PgCube::Point(2.), sqlx::postgres::types::PgCube::Point(2.)],
     "array[cube(2.2,-3.4)]" == vec![sqlx::postgres::types::PgCube::OneDimensionInterval(2.2, -3.4)],
 ));
 
-#[cfg(any(postgres_12, postgres_13, postgres_14, postgres_15))]
 test_type!(point<sqlx::postgres::types::PgPoint>(Postgres,
     "point(2.2,-3.4)" ~= sqlx::postgres::types::PgPoint { x: 2.2, y:-3.4 },
 ));
 
-#[cfg(any(postgres_12, postgres_13, postgres_14, postgres_15))]
 test_type!(_point<Vec<sqlx::postgres::types::PgPoint>>(Postgres,
     "array[point(2,3),point(2.1,3.4)]" @= vec![sqlx::postgres::types::PgPoint { x:2., y: 3. }, sqlx::postgres::types::PgPoint { x:2.1, y: 3.4 }],
     "array[point(2.2,-3.4)]" @= vec![sqlx::postgres::types::PgPoint { x: 2.2, y: -3.4 }],
 ));
 
-#[cfg(any(postgres_12, postgres_13, postgres_14, postgres_15))]
 test_type!(line<sqlx::postgres::types::PgLine>(Postgres,
     "line('{1.1, -2.2, 3.3}')" == sqlx::postgres::types::PgLine { a: 1.1, b:-2.2, c: 3.3 },
     "line('((0.0, 0.0), (1.0,1.0))')" == sqlx::postgres::types::PgLine { a: 1., b: -1., c: 0. },
 ));
 
-#[cfg(any(postgres_12, postgres_13, postgres_14, postgres_15))]
 test_type!(lseg<sqlx::postgres::types::PgLSeg>(Postgres,
     "lseg('((1.0, 2.0), (3.0,4.0))')" == sqlx::postgres::types::PgLSeg { start_x: 1., start_y: 2., end_x: 3. , end_y: 4.},
 ));
 
-#[cfg(any(postgres_12, postgres_13, postgres_14, postgres_15))]
 test_type!(box<sqlx::postgres::types::PgBox>(Postgres,
     "box('((1.0, 2.0), (3.0,4.0))')" == sqlx::postgres::types::PgBox { upper_right_x: 3., upper_right_y: 4., lower_left_x: 1. , lower_left_y: 2.},
 ));
 
-#[cfg(any(postgres_12, postgres_13, postgres_14, postgres_15))]
 test_type!(_box<Vec<sqlx::postgres::types::PgBox>>(Postgres,
     "array[box('1,2,3,4'),box('((1.1, 2.2), (3.3, 4.4))')]" @= vec![sqlx::postgres::types::PgBox { upper_right_x: 3., upper_right_y: 4., lower_left_x: 1., lower_left_y: 2. }, sqlx::postgres::types::PgBox { upper_right_x: 3.3, upper_right_y: 4.4, lower_left_x: 1.1, lower_left_y: 2.2 }],
 ));
 
-#[cfg(any(postgres_12, postgres_13, postgres_14, postgres_15))]
 test_type!(path<sqlx::postgres::types::PgPath>(Postgres,
     "path('((1.0, 2.0), (3.0,4.0))')" == sqlx::postgres::types::PgPath { closed: true, points: vec![ sqlx::postgres::types::PgPoint { x: 1., y: 2. }, sqlx::postgres::types::PgPoint { x: 3. , y: 4. } ]},
     "path('[(1.0, 2.0), (3.0,4.0)]')" == sqlx::postgres::types::PgPath { closed: false, points: vec![ sqlx::postgres::types::PgPoint { x: 1., y: 2. }, sqlx::postgres::types::PgPoint { x: 3. , y: 4. } ]},
 ));
 
-#[cfg(any(postgres_12, postgres_13, postgres_14, postgres_15))]
 test_type!(polygon<sqlx::postgres::types::PgPolygon>(Postgres,
     "polygon('((-2,-3),(-1,-3),(-1,-1),(1,1),(1,3),(2,3),(2,-3),(1,-3),(1,0),(-1,0),(-1,-2),(-2,-2))')" ~= sqlx::postgres::types::PgPolygon {  points: vec![
             sqlx::postgres::types::PgPoint { x: -2., y: -3. }, sqlx::postgres::types::PgPoint { x: -1., y: -3. }, sqlx::postgres::types::PgPoint { x: -1., y: -1. }, sqlx::postgres::types::PgPoint { x: 1., y: 1. },
@@ -583,7 +575,6 @@ test_type!(polygon<sqlx::postgres::types::PgPolygon>(Postgres,
     ]},
 ));
 
-#[cfg(any(postgres_12, postgres_13, postgres_14, postgres_15))]
 test_type!(circle<sqlx::postgres::types::PgCircle>(Postgres,
     "circle('<(1.1, -2.2), 3.3>')" ~= sqlx::postgres::types::PgCircle { x: 1.1, y:-2.2, radius: 3.3 },
     "circle('((1.1, -2.2), 3.3)')" ~= sqlx::postgres::types::PgCircle { x: 1.1, y:-2.2, radius: 3.3 },
@@ -678,17 +669,11 @@ test_prepared_type!(citext_array<Vec<PgCiText>>(Postgres,
     ],
 ));
 
-// FIXME: needed to disable `ltree` tests in version that don't have a binary format for it
-// but `PgLTree` should just fall back to text format
-#[cfg(any(postgres_14, postgres_15))]
 test_type!(ltree<sqlx::postgres::types::PgLTree>(Postgres,
     "'Foo.Bar.Baz.Quux'::ltree" == sqlx::postgres::types::PgLTree::from_str("Foo.Bar.Baz.Quux").unwrap(),
     "'Alpha.Beta.Delta.Gamma'::ltree" == sqlx::postgres::types::PgLTree::try_from_iter(["Alpha", "Beta", "Delta", "Gamma"]).unwrap(),
 ));
 
-// FIXME: needed to disable `ltree` tests in version that don't have a binary format for it
-// but `PgLTree` should just fall back to text format
-#[cfg(any(postgres_14, postgres_15))]
 test_type!(ltree_vec<Vec<sqlx::postgres::types::PgLTree>>(Postgres,
     "array['Foo.Bar.Baz.Quux', 'Alpha.Beta.Delta.Gamma']::ltree[]" ==
         vec![