[ 
https://jira.nuxeo.org/browse/NXP-3993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Florent Guillaume updated NXP-3993:
-----------------------------------

    Upgrade notes: 
- String fields are now by default mapped to a VARCHAR type. You can ALTER 
TABLE your old database to turn CLOBs into VARCHARs if needed.

- To have a string field (ex: my:field) mapped to a CLOB, you must give it 
type="largetext" in the repository config extension point 
(org.nuxeo.ecm.core.repository.RepositoryService):
<component name="...">
  <extension target="org.nuxeo.ecm.core.repository.RepositoryService" 
point="repository">
    <repository name="default" 
factory="org.nuxeo.ecm.core.storage.sql.coremodel.SQLRepositoryFactory">
      <repository>
        <schema>
          <field type="largetext">note</field>
          <field type="largetext">my:field</field>
          ...
        </schema>
        ...
      </repository>
    </repository>
  </extension>
</component>


  was:
- String fields are now by default mapped to a VARCHAR type. You can ALTER 
TABLE your old database to turn CLOBs into VARCHARs if needed.

- To have a string field (ex: my:field) mapped to a CLOB, you must give it 
type="largetext" in the repository config extension point 
(org.nuxeo.ecm.core.repository.RepositoryService):
<component name="...">
  <extension target="org.nuxeo.ecm.core.repository.RepositoryService" 
point="repository">
    <repository name="default" 
factory="org.nuxeo.ecm.core.storage.sql.coremodel.SQLRepositoryFactory">
      <repository>
        <schema>
          <field type="largetext">note:note</field>
          <field type="largetext">my:field</field>
          ...
        </schema>
        ...
      </repository>
    </repository>
  </extension>
</component>



>  Avoid 2000 characters limit for some fields
> --------------------------------------------
>
>                 Key: NXP-3993
>                 URL: https://jira.nuxeo.org/browse/NXP-3993
>             Project: Nuxeo Enterprise Platform
>          Issue Type: Bug
>          Components: Core SQL Storage
>    Affects Versions: 5.2 GA
>            Reporter: Delphine Renevey
>            Assignee: Florent Guillaume
>            Priority: Blocker
>             Fix For: 5.3 RC
>
>
> In some cases the Oracle server fails to set values for some textual fields 
> because the value uploaded is too large. The DB text columns are set to 
> NCHARVAR2(2000), value apparently exceeded by the fields values. The limit of 
> 2000 is intrinsic to Oracle NVARCHAR2, beyond that a NCLOB must be used.

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