[ https://issues.apache.org/jira/browse/OPENJPA-427?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Craig Russell resolved OPENJPA-427.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 1.1.0

Checked in the patch supplied by Ryosuke Iwata.

svn commit -m "OPENJPA-427 Change maxAutoAssignNameLength to 63 for PostgreSQL"
Sending        sql/PostgresDictionary.java
Transmitting file data .
Committed revision 595383.


> PostgresDictionary should set "63" as "maxAutoAssignNameLength".
> ----------------------------------------------------------------
>
>                 Key: OPENJPA-427
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-427
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: sql
>    Affects Versions: 1.0.0, 1.1.0
>         Environment: PostgreSQL 8.1.
>            Reporter: Ryosuke Iwata
>            Priority: Blocker
>             Fix For: 1.1.0
>
>         Attachments: mychanges.patch
>
>
> PostgresDictionary should set "63" (or something correct) as "maxAutoAssignNameLength", in order to let DBDictionary#getGeneratedKeySequenceName() generate correct names for IDENTITY sequences.
> OpenJPA trims IDENTITY sequence names longer than 32 characters, while PostgreSQL uses longer names for BIGSERIAL sequences. So, persisting entities with @Id column with GenerationType.IDENTITY often results in a database error such as :
>         org.apache.openjpa.lib.jdbc.ReportingSQLException: ERROR: relation "x_school_membershi_entityid_seq" does not exist {prepstmnt 2398193 SELECT CURRVAL(X_SCHOOL_TRANSFER_entityId_SEQ')} [code=0, state=42P01]
> The followings are the examples. "OK"s are the sequence names which PostgreSQL uses. "NG"s are those which OpenJPA attempts to use.
> Ex.1 -
>         Table : X_SCHOOL_TRANSFER_EVENT
>         BIGSERIAL Column : ENTITYID
>    OK : X_SCHOOL_TRANSFER_EVENT_ENTITY_ID_SEQ
>    NG : 'X_SCHOOL_TRANSFER__ENTITYID_SEQ
> Ex.2 -
>         Table : X_SCHOOL_MEMBERSHIP
>         BIGSERIAL Column : ENTITYID
>    OK : X_SCHOOL_MEMBERSHIP_ENTITYID_SEQ
>    NG : X_SCHOOL_MEMBERSHI_ENTITYID_SEQ

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