test: add EXTRACT fixture with 18 keyword variants to kitchen-sink

Replace standalone extract.test.ts with fixture-based testing that
follows the project's standard pattern:
- Add __fixtures__/kitchen-sink/misc/extract.sql with EPOCH, YEAR,
  MONTH, DAY, HOUR, MINUTE, SECOND, CENTURY, MILLENNIUM, DOW, DOY,
  QUARTER, WEEK, TIMEZONE, TIMEZONE_HOUR, TIMEZONE_MINUTE
- Regenerate generated.json and kitchen-sink test file
- Remove ad-hoc misc/extract.test.ts

Author: pyramation

__fixtures__/generated/generated.json

@@ -21372,6 +21372,24 @@
   "misc/indexes-11.sql": "DROP INDEX CONCURRENTLY IF EXISTS my_index CASCADE",
   "misc/indexes-12.sql": "CREATE UNIQUE INDEX new_unique_idx ON new_example(a, b) INCLUDE (c)",
   "misc/indexes-13.sql": "CREATE INDEX CONCURRENTLY idx_with_operator ON boom.merkle_tree USING GIN ( name gin_trgm_ops ( param1 = 32, param2 = true) )",
+  "misc/extract-1.sql": "SELECT EXTRACT(EPOCH FROM now())",
+  "misc/extract-2.sql": "SELECT EXTRACT(EPOCH FROM DATE '1970-01-01')",
+  "misc/extract-3.sql": "SELECT EXTRACT(EPOCH FROM TIMESTAMP '1970-01-01')",
+  "misc/extract-4.sql": "SELECT EXTRACT(YEAR FROM TIMESTAMP '2001-02-16 20:38:40')",
+  "misc/extract-5.sql": "SELECT EXTRACT(MONTH FROM TIMESTAMP '2001-02-16 20:38:40')",
+  "misc/extract-6.sql": "SELECT EXTRACT(DAY FROM TIMESTAMP '2001-02-16 20:38:40')",
+  "misc/extract-7.sql": "SELECT EXTRACT(HOUR FROM TIMESTAMP '2001-02-16 20:38:40')",
+  "misc/extract-8.sql": "SELECT EXTRACT(MINUTE FROM TIMESTAMP '2001-02-16 20:38:40')",
+  "misc/extract-9.sql": "SELECT EXTRACT(SECOND FROM TIMESTAMP '2001-02-16 20:38:40')",
+  "misc/extract-10.sql": "SELECT EXTRACT(CENTURY FROM DATE '2001-01-01')",
+  "misc/extract-11.sql": "SELECT EXTRACT(MILLENNIUM FROM DATE '2001-01-01')",
+  "misc/extract-12.sql": "SELECT EXTRACT(DOW FROM TIMESTAMP '2001-02-16 20:38:40')",
+  "misc/extract-13.sql": "SELECT EXTRACT(DOY FROM TIMESTAMP '2001-02-16 20:38:40')",
+  "misc/extract-14.sql": "SELECT EXTRACT(QUARTER FROM TIMESTAMP '2001-02-16 20:38:40')",
+  "misc/extract-15.sql": "SELECT EXTRACT(WEEK FROM TIMESTAMP '2001-02-16 20:38:40')",
+  "misc/extract-16.sql": "SELECT EXTRACT(TIMEZONE FROM CURRENT_TIMESTAMP)",
+  "misc/extract-17.sql": "SELECT EXTRACT(TIMEZONE_HOUR FROM CURRENT_TIMESTAMP)",
+  "misc/extract-18.sql": "SELECT EXTRACT(TIMEZONE_MINUTE FROM CURRENT_TIMESTAMP)",
   "misc/cascades-1.sql": "DROP TABLE IF EXISTS some_table CASCADE",
   "misc/cascades-2.sql": "DROP VIEW IF EXISTS some_view CASCADE",
   "misc/cascades-3.sql": "DROP MATERIALIZED VIEW IF EXISTS some_mat_view CASCADE",

__fixtures__/kitchen-sink/misc/extract.sql

@@ -0,0 +1,20 @@
+-- EXTRACT with various date/time field keywords
+-- Ref: constructive-io/constructive-db#748, constructive-io/pgsql-parser#289
+SELECT EXTRACT(EPOCH FROM now());
+SELECT EXTRACT(EPOCH FROM DATE '1970-01-01');
+SELECT EXTRACT(EPOCH FROM TIMESTAMP '1970-01-01');
+SELECT EXTRACT(YEAR FROM TIMESTAMP '2001-02-16 20:38:40');
+SELECT EXTRACT(MONTH FROM TIMESTAMP '2001-02-16 20:38:40');
+SELECT EXTRACT(DAY FROM TIMESTAMP '2001-02-16 20:38:40');
+SELECT EXTRACT(HOUR FROM TIMESTAMP '2001-02-16 20:38:40');
+SELECT EXTRACT(MINUTE FROM TIMESTAMP '2001-02-16 20:38:40');
+SELECT EXTRACT(SECOND FROM TIMESTAMP '2001-02-16 20:38:40');
+SELECT EXTRACT(CENTURY FROM DATE '2001-01-01');
+SELECT EXTRACT(MILLENNIUM FROM DATE '2001-01-01');
+SELECT EXTRACT(DOW FROM TIMESTAMP '2001-02-16 20:38:40');
+SELECT EXTRACT(DOY FROM TIMESTAMP '2001-02-16 20:38:40');
+SELECT EXTRACT(QUARTER FROM TIMESTAMP '2001-02-16 20:38:40');
+SELECT EXTRACT(WEEK FROM TIMESTAMP '2001-02-16 20:38:40');
+SELECT EXTRACT(TIMEZONE FROM CURRENT_TIMESTAMP);
+SELECT EXTRACT(TIMEZONE_HOUR FROM CURRENT_TIMESTAMP);
+SELECT EXTRACT(TIMEZONE_MINUTE FROM CURRENT_TIMESTAMP);

packages/deparser/__tests__/kitchen-sink/misc-extract.test.ts

@@ -0,0 +1,26 @@
+
+import { FixtureTestUtils } from '../../test-utils';
+const fixtures = new FixtureTestUtils();
+
+it('misc-extract', async () => {
+  await fixtures.runFixtureTests([
+  "misc/extract-1.sql",
+  "misc/extract-2.sql",
+  "misc/extract-3.sql",
+  "misc/extract-4.sql",
+  "misc/extract-5.sql",
+  "misc/extract-6.sql",
+  "misc/extract-7.sql",
+  "misc/extract-8.sql",
+  "misc/extract-9.sql",
+  "misc/extract-10.sql",
+  "misc/extract-11.sql",
+  "misc/extract-12.sql",
+  "misc/extract-13.sql",
+  "misc/extract-14.sql",
+  "misc/extract-15.sql",
+  "misc/extract-16.sql",
+  "misc/extract-17.sql",
+  "misc/extract-18.sql"
+]);
+});