Dialect-specific unique constraint definition.
- See Also:
Interface Summary Interface Description UniqueDelegateDialect-level delegate responsible for applying unique constraints in DDL.
Class Summary Class Description AlterTableUniqueDelegateA
alter tablecommands to create and drop the unique constraint.
create unique indexcommands when necessary.
UniqueDelegatewhich includes the unique constraint in the
create tablestatement, except when called during schema migration.
DefaultUniqueDelegate Deprecated. SkipNullableUniqueDelegateA
UniqueDelegatethat only creates unique constraints on not-null columns, and ignores requests for uniqueness for nullable columns.