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https://issues.apache.org/jira/browse/CALCITE-1308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15368065#comment-15368065
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Josh Elser commented on CALCITE-1308:
-------------------------------------

Hah, no, this is just not implemented in the Avatica client. From MetaImpl:

{code}
  public MetaResultSet getPrimaryKeys(ConnectionHandle ch,
      String catalog,
      String schema,
      String table) {
    return createEmptyResultSet(MetaPrimaryKey.class);
  }
{code}

Looks like we have quite a few things to implement properly in RemoteMeta.

> Primary Keys for Phoenix table not recognized in sqlline.
> ---------------------------------------------------------
>
>                 Key: CALCITE-1308
>                 URL: https://issues.apache.org/jira/browse/CALCITE-1308
>             Project: Calcite
>          Issue Type: Bug
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Minor
>             Fix For: avatica-1.9.0
>
>
> Noticed in CALCITE-1291: sqlline normally highlights the column(s) which are 
> (part of the) primary key. Running a debugger over it quickly, showed that no 
> keys were returned over the DatabaseMetaData.getPrimaryKeys call.



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