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https://issues.apache.org/jira/browse/PHOENIX-1315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14160472#comment-14160472
]
ravi commented on PHOENIX-1315:
-------------------------------
Hi [~James Taylor] ,
The below test confirmed that data is being loaded from index table.
{code}
@Test
public void testDataFromIndexTableUsingQuery() throws Exception {
try {
//create the table
String ddl = "CREATE TABLE " + TABLE_NAME
+ " (ID INTEGER NOT NULL, NAME VARCHAR NOT NULL, EMPLID
INTEGER CONSTRAINT pk PRIMARY KEY (ID, NAME)) IMMUTABLE_ROWS=true";
conn.createStatement().execute(ddl);
//create a index table
String indexDdl = " CREATE INDEX " + INDEX_NAME + " ON " +
TABLE_NAME + " (EMPLID) INCLUDE (NAME) ";
conn.createStatement().execute(indexDdl);
//upsert the data.
final String dml = "UPSERT INTO " + TABLE_NAME + " VALUES(?,?,?)";
PreparedStatement stmt = conn.prepareStatement(dml);
int rows = 20;
for(int i = 0 ; i < rows; i++) {
stmt.setInt(1, i);
stmt.setString(2, "a"+i);
stmt.setInt(3, i * 5);
stmt.execute();
}
conn.commit();
pigServer.registerQuery("A = load 'hbase://query/SELECT NAME ,
EMPLID FROM A WHERE EMPLID = 25 ' using " + PhoenixHBaseLoader.class.getName()
+ "('"+zkQuorum + "') ;");
Iterator<Tuple> iterator = pigServer.openIterator("A");
while (iterator.hasNext()) {
Tuple tuple = iterator.next();
assertEquals("a5", (String)tuple.get(0));
assertEquals(25, tuple.get(1));
}
} finally {
dropTable(TABLE_NAME);
dropTable(INDEX_NAME);
}
}
{code}
> 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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