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From "Long, Xindian" <Xindian.L...@sensus.com>
Subject Phoenix-Spark plug in cannot select by column family name
Date Tue, 08 Nov 2016 22:19:34 GMT
I have a table with multiple column family with possible same column names.
I want to use phoenix-spark plug in to select some of the fields, but it returns a AnalysisException
(details in the attached file)

public void testSpark(JavaSparkContext sc, String tableStr, String dataSrcUrl) {
    //SparkContextBuilder.buildSparkContext("Simple Application", "local");

    // One JVM can only have one Spark Context now
    Map<String, String> options = new HashMap<String, String>();
    SQLContext sqlContext = new SQLContext(sc);


    options.put("zkUrl", dataSrcUrl);
    options.put("table", tableStr);
    log.info("Phoenix DB URL: " + dataSrcUrl + " tableStr: " + tableStr);

    DataFrame df = null;
    try {
        df = sqlContext.read().format("org.apache.phoenix.spark").options(options).load();
        df.explain(true);
        df.show();

        df = df.select("I.CI", "I.FA");

        //df = df.select("\"I\".\"CI\"", "\"I\".\"FA\""); // This gives the same exception
too

    } catch (Exception ex) {
        log.error("sql error: ", ex);
    }

    try {
        log.info("Count By phoenix spark plugin: " + df.count());
   } catch (Exception ex) {
        log.error("dataframe error: ", ex);
    }

}


I can see in the log that there is something like

10728 [INFO] main  org.apache.phoenix.mapreduce.PhoenixInputFormat  - Select Statement: SELECT
"RID","I"."CI","I"."FA","I"."FPR","I"."FPT","I"."FR","I"."LAT","I"."LNG","I"."NCG","I"."NGPD","I"."VE","I"."VMJ","I"."VMR","I"."VP","I"."CSRE","I"."VIB","I"."IIICS","I"."LICSCD","I"."LEDC","I"."ARM","I"."FBM","I"."FTB","I"."NA2FR","I"."NA2PT","S"."AHDM","S"."ARTJ","S"."ATBM","S"."ATBMR","S"."ATBR","S"."ATBRR","S"."CS","S"."LAMT","S"."LTFCT","S"."LBMT","S"."LDTI","S"."LMT","S"."LMTN","S"."LMTR","S"."LPET","S"."LPORET","S"."LRMT","S"."LRMTP","S"."LRMTR","S"."LSRT","S"."LSST","S"."MHDMS0","S"."MHDMS1","S"."RFD","S"."RRN","S"."RRR","S"."TD","S"."TSM","S"."TC","S"."TPM","S"."LRMCT","S"."SS13FSK34","S"."LERMT","S"."LEMDMT","S"."AGTBRE","S"."SRM","S"."LTET","S"."TPMS","S"."TPMSM","S"."TM","S"."TMF","S"."TMFM","S"."NA2TLS","S"."NA2IT","S"."CWR","S"."BPR","S"."LR","S"."HLB","S"."NA2UFTBFR","S"."DT","S"."NA28ARE","S"."RM","S"."LMTB","S"."LRMTB","S"."RRB","P"."BADUC","P"."UAN","P"."BAPS","P"."BAS","P"."UAS","P"."BATBBR","P"."BBRI","P"."BLBR","P"."ULHT","P"."BLPST","P"."BLPT","P"."UTI","P"."UUC"
FROM TESTING.ENDPOINTS

But obviously, the column family is  left out of the Dataframe column name somewhere in the
process.
Any fix for the problem?

Thanks

Xindian


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