Add json-columns module: JSON columns in Hibernate 7.4.14 (@JdbcTypeCode(SqlTypes.JSON)), JSONB querying, GIN/expression indexes, dirty checking, Jackson 3 vs 2 on PostgreSQL 18.6 and MySQL 8.0.46

Co-Authored-By: Claude Sonnet 5.5 <[email protected]> Claude-Session: https://claude.ai/code/session_017ic4b6Kg9RWSTJzyz6KP9X
2026-10-30 17:00:46 +00:00
parent 98f4ed7411
commit b83cc9988e
51 changed files with 3178 additions and 0 deletions
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+# PostgreSQL 18.6 on x86_64-pc-linux-gnu
+
+== DDL
+id bigint
+name character varying
+address jsonb
+
+== stored
+Asha {"zip": "411001", "city": "Pune", "floor": 3}
+Ravi {"zip": "400001", "city": "Mumbai", "floor": 12}
+Meera {"zip": "411045", "city": "Pune", "floor": 1}
+
+== HQL: where c.address.city = 'Pune'
+sql> select c1_0.name from customer c1_0 where cast(c1_0.address->>'city' as varchar)='Pune' order by c1_0.id
+result: [Asha, Meera]
+
+== HQL: select and order by an int attribute inside the JSON
+sql> select cast(c1_0.address->>'floor' as integer) from customer c1_0 where cast(c1_0.address->>'floor' as integer)>2 order by cast(c1_0.address->>'floor' as integer)
+result: [3, 12]
+
+== HQL: update c.address.floor = 99
+sql> update customer c1_0 set address=coalesce(c1_0.address,'{}')||jsonb_build_object('floor',to_jsonb(99)) where c1_0.name='Ravi'
+rows updated: 1; stored: {"zip": "400001", "city": "Mumbai", "floor": 99}
+
+== HQL: group by c.address.city
+sql> select cast(c1_0.address->>'city' as varchar),count(*) from customer c1_0 group by cast(c1_0.address->>'city' as varchar) order by cast(c1_0.address->>'city' as varchar)
+row: Mumbai 1
+row: Pune 2