feat: Drop support for pg 11

PostgreSQL 11 is EOL since November 2023.

nix/README.md

@@ -75,12 +75,12 @@ The PostgREST utilities available in `nix-shell` all have names that begin with
 postgrest-build                   postgrest-test-spec
 postgrest-check                   postgrest-watch
 postgrest-clean                   postgrest-with-all
-postgrest-coverage                postgrest-with-postgresql-11
-postgrest-lint                    postgrest-with-postgresql-12
-postgrest-run                     postgrest-with-postgresql-13
-postgrest-style                   postgrest-with-postgresql-14
-postgrest-style-check             postgrest-with-postgresql-15
-postgrest-test-io                 postgrest-with-postgresql-16
+postgrest-coverage                postgrest-with-postgresql-12
+postgrest-lint                    postgrest-with-postgresql-13
+postgrest-run                     postgrest-with-postgresql-14
+postgrest-style                   postgrest-with-postgresql-15
+postgrest-style-check             postgrest-with-postgresql-16
+postgrest-test-io
 ...
 
 [nix-shell]$
@@ -99,12 +99,12 @@ $ nix-shell --arg memory true
 postgrest-build                   postgrest-test-spec
 postgrest-check                   postgrest-watch
 postgrest-clean                   postgrest-with-all
-postgrest-coverage                postgrest-with-postgresql-11
-postgrest-lint                    postgrest-with-postgresql-12
-postgrest-run                     postgrest-with-postgresql-13
-postgrest-style                   postgrest-with-postgresql-14
-postgrest-style-check             postgrest-with-postgresql-15
-postgrest-test-io                 postgrest-with-postgresql-16
+postgrest-coverage                postgrest-with-postgresql-12
+postgrest-lint                    postgrest-with-postgresql-13
+postgrest-run                     postgrest-with-postgresql-14
+postgrest-style                   postgrest-with-postgresql-15
+postgrest-style-check             postgrest-with-postgresql-16
+postgrest-test-io
 postgrest-test-memory
 ...
 

nix/overlays/default.nix

@@ -3,9 +3,7 @@
   checked-shell-script = import ./checked-shell-script;
   gitignore = import ./gitignore.nix;
   haskell-packages = import ./haskell-packages.nix;
-  postgis = import ./postgis.nix;
   postgresql-libpq = import ./postgresql-libpq.nix;
-  postgresql-legacy = import ./postgresql-legacy.nix;
   postgresql-future = import ./postgresql-future.nix;
   slocat = import ./slocat.nix;
 }

nix/overlays/postgis.nix

@@ -1,18 +0,0 @@
-final: prev:
-let
-  postgis_3_2_3 = rec {
-    version = "3.2.3";
-    src = final.fetchurl {
-      url = "https://download.osgeo.org/postgis/source/postgis-${version}.tar.gz";
-      sha256 = "sha256-G02LXHVuWrpZ77wYM7Iu/k1lYneO7KVvpJf+susTZow=";
-    };
-    meta.broken = false;
-  };
-in
-{
-  postgresql_11 = prev.postgresql_11.override { this = final.postgresql_11; } // {
-    pkgs = prev.postgresql_11.pkgs // {
-      postgis = prev.postgresql_11.pkgs.postgis.overrideAttrs (_: postgis_3_2_3);
-    };
-  };
-}

nix/overlays/postgresql-legacy.nix

@@ -1,19 +0,0 @@
-_: _:
-# Overlay that adds legacy versions of PostgreSQL that are supported by
-# PostgREST.
-{
-  # PostgreSQL 11 was removed from Nixpkgs with
-  # https://github.com/NixOS/nixpkgs/commit/1220a4d4dd1a4590780a5e1c18d1333a121be366
-  # We pin its parent commit to get the last version that was available.
-  postgresql_11 =
-    let
-      rev = "f5458516e42cc5cb4123cc2d93f45c240548aa18";
-      tarballHash = "1h03621sxfhw4z6ya74k6c2lyx3z7pvf2jcg4vs7i01yz2m6w3cv";
-      pinnedPkgs =
-        builtins.fetchTarball {
-          url = "https://github.com/nixos/nixpkgs/archive/${rev}.tar.gz";
-          sha256 = tarballHash;
-        };
-    in
-    (import pinnedPkgs { }).pkgs.postgresql_11;
-}