[jira] [Updated] (CALCITE-2713) JDBC adapter may generate casts on PostgreSQL for VARCHAR type exceeding max length

["Julian Hyde (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CALCITE-2713?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Julian Hyde updated CALCITE-2713:
---------------------------------
    Fix Version/s: 1.18.0

> JDBC adapter may generate casts on PostgreSQL for VARCHAR type exceeding max length
> -----------------------------------------------------------------------------------
>
>                 Key: CALCITE-2713
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2713
>             Project: Calcite
>          Issue Type: Bug
>          Components: jdbc-adapter
>            Reporter: Jesus Camacho Rodriguez
>            Assignee: Jesus Camacho Rodriguez
>            Priority: Major
>             Fix For: 1.18.0
>
>
> Varchar length in PostgreSQL cannot exceed 10485760, however Calcite may generate a cast with length larger than that number, resulting in an exception.
> {noformat}
> org.postgresql.util.PSQLException: ERROR: length for type varchar cannot exceed 10485760
> {noformat}
> From {{htup_details.h}} in postgresql:
> {noformat}
> * MaxAttrSize is a somewhat arbitrary upper limit on the declared size of
> * data fields of char(n) and similar types.  It need not have anything
> * directly to do with the *actual* upper limit of varlena values, which
> * is currently 1Gb (see TOAST structures in postgres.h).  I've set it
> * at 10Mb which seems like a reasonable number --- tgl 8/6/00. */
> {noformat}



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