[jira] [Resolved] (PHOENIX-1315) Optimize query for Pig loader

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

     [ https://issues.apache.org/jira/browse/PHOENIX-1315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

maghamravikiran resolved PHOENIX-1315.
--------------------------------------
    Resolution: Fixed

> Optimize query for Pig loader
> -----------------------------
>
>                 Key: PHOENIX-1315
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-1315
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: James Taylor
>            Assignee: maghamravikiran
>             Fix For: 4.2, 3.2
>
>         Attachments: PHOENIX-1315.patch, PHOENIX-1315_v2.patch, PHOENIX-1315_v3.patch, PHOENIX-1315_v4.patch
>
>
> I came across this with a recent change I was making. Why is the call to queryPlan.iterators() necessary in PhoenixInputFormat?
> {code}
>     private QueryPlan getQueryPlan(final JobContext context) throws IOException {
>         Preconditions.checkNotNull(context);
>         if(queryPlan == null) {
>             try{
>                 final Connection connection = getConnection();
>                 final String selectStatement = getConf().getSelectStatement();
>                 Preconditions.checkNotNull(selectStatement);
>                 final Statement statement = connection.createStatement();
>                 final PhoenixStatement pstmt = statement.unwrap(PhoenixStatement.class);
>                 this.queryPlan = pstmt.compileQuery(selectStatement);
>                 // FIXME: why is getting the iterator necessary here, as it will
>                 // cause the query to run.
>                 this.queryPlan.iterator();
>             } catch(Exception exception) {
>                 LOG.error(String.format("Failed to get the query plan with error [%s]",exception.getMessage()));
>                 throw new RuntimeException(exception);
>             }
>         }
>         return queryPlan;
>     }
> {code}



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