[jira] [Commented] (PHOENIX-4322) DESC primary key column with variable length does not work in SkipScanFilter

["Rajeshbabu Chintaguntla (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PHOENIX-4322?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16369034#comment-16369034 ] 

Rajeshbabu Chintaguntla commented on PHOENIX-4322:
--------------------------------------------------

[~maryannxue] This is missing in 5.x branch. Can you please commit it to the branch as well. Thanks.

> DESC primary key column with variable length does not work in SkipScanFilter
> ----------------------------------------------------------------------------
>
>                 Key: PHOENIX-4322
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4322
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.11.0
>            Reporter: Maryann Xue
>            Assignee: Maryann Xue
>            Priority: Minor
>             Fix For: 4.14.0
>
>         Attachments: PHOENIX-4322.patch
>
>
> Example:
> {code}
>     @Test
>     public void inDescCompositePK3() throws Exception {
>         String table = generateUniqueName();
>         String ddl = "CREATE table " + table + " (oid VARCHAR NOT NULL, code VARCHAR NOT NULL constraint pk primary key (oid DESC, code DESC))";
>         Object[][] insertedRows = new Object[][]{{"o1", "1"}, {"o2", "2"}, {"o3", "3"}};
>         runQueryTest(ddl, upsert("oid", "code"), insertedRows, new Object[][]{{"o2", "2"}, {"o1", "1"}}, new WhereCondition("(oid, code)", "IN", "(('o2', '2'), ('o1', '1'))"),
>             table);
>     }
> {code}
> Here the last column in primary key is in DESC order and has variable length, and WHERE clause involves an "IN" operator with RowValueConstructor specifying all PK columns. We get no results.
> This ends up being the root cause for not being able to use child/parent join optimization on DESC pk columns as described in PHOENIX-3050.



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