add Length class with useful constant values
well-defined mappings for "long" varchar/varbinary types
make LONGVARCHAR a synonym for VARCHAR with length=LONG32
make LONGVARBINARY a synonym for VARBINARY with length=LONG32
add Dialect.getMaxVarcharLength() + friends
make schema validator ignore the differences between string types
* Fix insert handling with respect to version, discriminator and generated identifier insertion
* Introduce SqmMultiTableInsertStrategy to handle multi-table inserts
* Introduce the notion of an "entity table" similar to the "id table" to handle multi-table insertions
* Implement table based and cte based multi-table insertion to support all dialects
* Implement identifier generator optimizer support for multi-table insert
* Fix validation of insert target paths against select item types
* Fix some DML validations
* Implement over-clause support in SQL AST
* Fix multi-valued filter parameter support
* Switch from the "expression" to "expressionOrPredicate" rule in the HQL grammar where it makes sense as required by some HQL tests
* Cleanup parser rule ordering to allow more keywords in the identifier rule
* Implement literal support for Ordering parser
* Add special AvgFunction as needed by H2, HSQL, DB2, SQL Server and Sybase that casts arguments to double if necessary
* Fix wrong deduplication of order by fragments in case a plural attribute is fetched multiple times
* Implement support for de-referencing any-valued mappings in HQL
* Avoid unnecessary entity subtypes in polymorphic splitted queries if a base type also matches the requested type
* Implement pagination support for polymorphic splitted queries
* Cleanup path part resolving by removing lots of duplicate code
* Aligh HQL parsing expectations to the expected behavior of 5.x
* Add method to `JavaType` that allows determining if a type is can be widened to another which is used for arithmetic type resolving
* Implement validations for fetch owner checking
* Fix issues with the id table creation due to lacking column lengths in the column DDL type
* Fix issues and add some optimizations related to multi-table delete handling
* Add the notion of a special "implicit" alias to avoid generating a unique alias for unaliased or implicit HQL joins
* Properly implement multiple bag fetch validation
* Make sure filter predicates are applied for all plural attribute joins
* Fix some issues with undecidable parameter type inference
* Fix some issues with negated SQM predicates not being converted to the proper SQL AST predicates
* Fix issues with qualifying DML target referencing columns
* Fix `is null` semantics for tuples referring to embeddable types
* Capture necessary details from JdbcValuesMetadata in the cached data to avoid executing a query on cache hit when types should be inferred
* Get rid of special CollectionPropertyNames and writeup a migration guide section for the replacements
Jan Schatteman
Christian Beikov
Sanne Grinovero
Gavin King
Andrea Boriero
Steve Ebersole
Yoann Rodière