feat: PostgreSQL 18 support (libpg-query 18.1.1, @pgsql/types 18)

Author: pyramation

__fixtures__/generated/generated.json

@@ -0,0 +1,36 @@
+-- PG18: RETURNING OLD/NEW aliases (ReturningClause options)
+INSERT INTO t (a) VALUES (1) RETURNING WITH (OLD AS o, NEW AS n) o.a, n.a;
+UPDATE t SET a = 2 WHERE a = 1 RETURNING WITH (OLD AS prev, NEW AS next) prev.a AS before, next.a AS after;
+DELETE FROM t WHERE a = 2 RETURNING WITH (OLD AS o) o.*;
+MERGE INTO t USING s ON t.id = s.id WHEN MATCHED THEN UPDATE SET a = s.a RETURNING WITH (OLD AS o, NEW AS n) merge_action(), o.a, n.a;
+INSERT INTO t (a) VALUES (1) RETURNING new.a;
+UPDATE t SET a = 2 RETURNING old.a, new.a;
+
+-- PG18: VIRTUAL generated columns
+CREATE TABLE gtest (a int, b int GENERATED ALWAYS AS (a * 2) VIRTUAL);
+CREATE TABLE gtest2 (a int, b int GENERATED ALWAYS AS (a * 2) STORED, c int GENERATED ALWAYS AS (a + 1) VIRTUAL);
+
+-- PG18: NOT ENFORCED constraints
+CREATE TABLE enf (a int, CONSTRAINT chk CHECK (a > 0) NOT ENFORCED);
+CREATE TABLE enf2 (a int CHECK (a > 0) NOT ENFORCED);
+ALTER TABLE enf ADD CONSTRAINT fk FOREIGN KEY (a) REFERENCES other (a) NOT ENFORCED;
+ALTER TABLE enf ALTER CONSTRAINT chk NOT ENFORCED;
+ALTER TABLE enf ALTER CONSTRAINT chk ENFORCED;
+
+-- PG18: ALTER CONSTRAINT INHERIT / NO INHERIT
+ALTER TABLE enf ALTER CONSTRAINT chk NO INHERIT;
+ALTER TABLE enf ALTER CONSTRAINT chk INHERIT;
+ALTER TABLE enf ALTER CONSTRAINT fk DEFERRABLE INITIALLY DEFERRED;
+ALTER TABLE enf ALTER CONSTRAINT fk NOT DEFERRABLE;
+
+-- PG18: temporal primary keys / unique WITHOUT OVERLAPS and PERIOD foreign keys
+CREATE TABLE temporal_rng (id int4range, valid_at daterange, CONSTRAINT temporal_rng_pk PRIMARY KEY (id, valid_at WITHOUT OVERLAPS));
+CREATE TABLE temporal_rng_uq (id int4range, valid_at daterange, CONSTRAINT temporal_rng_uq UNIQUE (id, valid_at WITHOUT OVERLAPS));
+CREATE TABLE temporal_fk_rng2rng (id int4range, valid_at daterange, parent_id int4range, CONSTRAINT temporal_fk_rng2rng_fk FOREIGN KEY (parent_id, PERIOD valid_at) REFERENCES temporal_rng (id, PERIOD valid_at));
+ALTER TABLE temporal_fk_rng2rng ADD CONSTRAINT temporal_fk_rng2rng_fk2 FOREIGN KEY (parent_id, PERIOD valid_at) REFERENCES temporal_rng (id, PERIOD valid_at) ON DELETE CASCADE;
+
+-- PG18: named NOT NULL table constraints
+CREATE TABLE nn (a int, CONSTRAINT a_not_null NOT NULL a);
+ALTER TABLE nn ADD CONSTRAINT b_not_null NOT NULL a;
+ALTER TABLE nn ADD NOT NULL a NOT VALID;
+CREATE TABLE nn2 (a int, NOT NULL a NO INHERIT);

__fixtures__/kitchen-sink/misc/pg18.sql

@@ -34,6 +34,13 @@
       "pgsql-deparser": "17.11.2",
       "@pgsql/types": "17.6.1",
       "npmTag": "pg17"
+    },
+    "18": {
+      "libpg-query": "18.1.1",
+      "pgsql-parser": "18.0.0",
+      "pgsql-deparser": "18.0.0",
+      "@pgsql/types": "18.0.0",
+      "npmTag": "pg18"
     }
   }
 }

__fixtures__/plpgsql-generated/generated.json

@@ -0,0 +1,33 @@
+
+import { FixtureTestUtils } from '../../test-utils';
+const fixtures = new FixtureTestUtils();
+
+it('misc-pg18', async () => {
+  await fixtures.runFixtureTests([
+  "misc/pg18-1.sql",
+  "misc/pg18-2.sql",
+  "misc/pg18-3.sql",
+  "misc/pg18-4.sql",
+  "misc/pg18-5.sql",
+  "misc/pg18-6.sql",
+  "misc/pg18-7.sql",
+  "misc/pg18-8.sql",
+  "misc/pg18-9.sql",
+  "misc/pg18-10.sql",
+  "misc/pg18-11.sql",
+  "misc/pg18-12.sql",
+  "misc/pg18-13.sql",
+  "misc/pg18-14.sql",
+  "misc/pg18-15.sql",
+  "misc/pg18-16.sql",
+  "misc/pg18-17.sql",
+  "misc/pg18-18.sql",
+  "misc/pg18-19.sql",
+  "misc/pg18-20.sql",
+  "misc/pg18-21.sql",
+  "misc/pg18-22.sql",
+  "misc/pg18-23.sql",
+  "misc/pg18-24.sql",
+  "misc/pg18-25.sql"
+]);
+});

__fixtures__/proto/18-latest.proto

@@ -53,11 +53,11 @@
     "database"
   ],
   "devDependencies": {
-    "libpg-query": "17.7.3",
+    "libpg-query": "18.1.1",
     "makage": "^0.1.8"
   },
   "dependencies": {
     "@pgsql/quotes": "workspace:*",
-    "@pgsql/types": "^17.6.2"
+    "@pgsql/types": "^18.0.0"
   }
 }

config/versions.json

@@ -64,6 +64,10 @@ export const cleanTree = (tree: any) => {
     stmt_len: noop,
     stmt_location: noop,
     location: noop,
+    rexpr_list_start: noop,
+    rexpr_list_end: noop,
+    list_start: noop,
+    list_end: noop,
     DefElem: (obj: any) => {
       if (obj.defname === 'as') {
         if (Array.isArray(obj.arg) && obj.arg.length) {