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HHH-16160 Fix some XML related issues that came up

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Christian Beikov 2024-11-21 13:23:14 +01:00
parent 57142a86dd
commit 9de9afed86
1 changed files with 16 additions and 3 deletions
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migration-guide.adoc
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@ -315,10 +315,10 @@ The default precision for SQL Server timestamps was changed to 7 i.e. 100 nanose
Note that these changes only affect DDL generation.
[[array-mapping-changes-on-db2-sap-hana-and-sybase-ase]]
== Array mapping changes on DB2, SAP HANA and Sybase ASE
[[array-mapping-changes-on-db2-sap-hana-sql-server-and-sybase-ase]]
== Array mapping changes on DB2, SAP HANA, SQL Server and Sybase ASE
On DB2, SAP HANA and Sybase ASE, basic arrays now map to the `SqlTypes.XML_ARRAY` type code,
On DB2, SAP HANA, SQL Server and Sybase ASE, basic arrays now map to the `SqlTypes.XML_ARRAY` type code,
whereas previously, the dialect mapped arrays to `SqlTypes.VARBINARY`.
The `SqlTypes.XML_ARRAY` type uses the `xml` DDL type which enables using arrays in other features through the various XML functions.
@ -338,6 +338,19 @@ The migration requires to read data and re-save it.
To retain backwards compatibility, configure the setting `hibernate.type.preferred_array_jdbc_type` to `VARBINARY`.
[[xml-format-mapper-changes]]
== XML FormatMapper changes
Previous versions of Hibernate ORM used an undefined/provider-specific format for serialization/deserialization of
collections, maps and byte arrays to/from XML, which is not portable.
XML FormatMapper implementations were changed to now use a portable format for collections, maps and byte arrays.
This change is necessary to allow mapping basic arrays as `SqlTypes.XML_ARRAY`.
The migration requires to read data and re-save it.
To retain backwards compatibility, configure the setting `hibernate.type.xml_format_mapper.legacy_format` to `true`.
[[sf-name]]
== SessionFactory Name (and JNDI)