[jira] [Updated] (PHOENIX-1298) Queries on fixed width type columns that have an index declared on them don't use that index

["James Taylor (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PHOENIX-1298?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James Taylor updated PHOENIX-1298:
----------------------------------
    Summary: Queries on fixed width type columns that have an index declared on them don't use that index  (was: Queries on fixed width type columns that have an index declared on them don't use that index.)

> Queries on fixed width type columns that have an index declared on them don't use that index
> --------------------------------------------------------------------------------------------
>
>                 Key: PHOENIX-1298
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1298
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 5.0.0, 4.2, 3.2
>            Reporter: Samarth Jain
>         Attachments: PHOENIX-1298.patch
>
>
> Happens when the index is on a column whose data type is fixed width. If V1 is made of type VARCHAR, then the test passes.
> {code}
> @Test
>     public void testRVCUsingPkColsReturnedByPlanShouldUseIndex() throws Exception {
>         Connection conn = DriverManager.getConnection(getUrl());
>         conn.createStatement().execute("CREATE TABLE T (k VARCHAR NOT NULL PRIMARY KEY, v1 CHAR(15), v2 VARCHAR)");
>         conn.createStatement().execute("CREATE INDEX IDX ON T(v1)");
>         PhoenixStatement stmt = conn.createStatement().unwrap(PhoenixStatement.class);
>         String query = "select * from t where v1 = '1'";
>         QueryPlan plan = stmt.optimizeQuery(query);
>         assertEquals("IDX", plan.getTableRef().getTable().getTableName().getString());
>     }
>  
> {code}
> Instead of going through the index table, the query ends up using the data table.



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