Do you mean sqllab in superset? We have solved relevant problems, except
for the exception supplied by me

2018-01-30 15:38 GMT+08:00 yongjie zhao <[email protected]>:

> Are you in sqllab write this SQL?
>
> On Tue, Jan 30, 2018 at 2:57 PM, 杨浩 <[email protected]> wrote:
>
> > kylin developers
> >    We have used superset as BI tool. Superset uses to_date to represent
> > time, and we add the to_date udf in our env. A query may be like select
> ***
> > from table_1 where 'DATE' >= TO_DATE('2017-12-31 00:00:00',
> 'yyyy-MM-dd').
> > The executing result is right, but the query will not use kylin optimize,
> > because some error has happened , and every query will scan all hbase
> > table. How should we add the udf ?
> >
> > 2018-01-30 13:10:03,400 WARN  [Query
> > >> f029cbac-2aba-456c-b857-f65c8661e39c-90]
> > >> filter.BuiltInFunctionTupleFilter:143 : Reflection failed for
> > methodParams.
> > >
> > > java.lang.NullPointerException
> > >
> > >         at
> > >> org.apache.kylin.metadata.filter.BuiltInFunctionTupleFilter.addChild(
> > BuiltInFunctionTupleFilter.java:136)
> > >
> > >         at
> > >> org.apache.kylin.metadata.filter.TupleFilterSerializer.deserialize(
> > TupleFilterSerializer.java:146)
> > >
> > >         at
> > >> org.apache.kylin.storage.gtrecord.CubeSegmentScanner.<
> > init>(CubeSegmentScanner.java:65)
> > >
> > >         at
> > >> org.apache.kylin.storage.gtrecord.GTCubeStorageQueryBase.search(
> > GTCubeStorageQueryBase.java:93)
> > >
> > >         at
> > >> org.apache.kylin.query.enumerator.OLAPEnumerator.
> > queryStorage(OLAPEnumerator.java:117)
> > >
> > >         at
> > >> org.apache.kylin.query.enumerator.OLAPEnumerator.
> > moveNext(OLAPEnumerator.java:64)
> > >
> > >         at Baz$1$1.moveNext(Unknown Source)
> > >
> > >         at
> > >> org.apache.calcite.linq4j.EnumerableDefaults.groupBy_(
> > EnumerableDefaults.java:826)
> > >
> > >         at
> > >> org.apache.calcite.linq4j.EnumerableDefaults.groupBy(
> > EnumerableDefaults.java:761)
> > >
> > >         at
> > >> org.apache.calcite.linq4j.DefaultEnumerable.groupBy(
> > DefaultEnumerable.java:302)
> > >
> > >         at Baz.bind(Unknown Source)
> > >
> > >         at
> > >> org.apache.calcite.jdbc.CalcitePrepare$CalciteSignature.enumerable(
> > CalcitePrepare.java:335)
> > >
> > >         at
> > >> org.apache.calcite.jdbc.CalciteConnectionImpl.enumerable(
> > CalciteConnectionImpl.java:294)
> > >
> > >         at
> > >> org.apache.calcite.jdbc.CalciteMetaImpl._createIterable(
> > CalciteMetaImpl.java:559)
> > >
> > >         at
> > >> org.apache.calcite.jdbc.CalciteMetaImpl.createIterable(
> > CalciteMetaImpl.java:550)
> > >
> > >         at
> > >> org.apache.calcite.avatica.AvaticaResultSet.execute(
> > AvaticaResultSet.java:204)
> > >
> > >         at
> > >> org.apache.calcite.jdbc.CalciteResultSet.execute(
> > CalciteResultSet.java:67)
> > >
> > >         at
> > >> org.apache.calcite.jdbc.CalciteResultSet.execute(
> > CalciteResultSet.java:44)
> > >
> > >         at
> > >> org.apache.calcite.avatica.AvaticaConnection$1.execute(
> > AvaticaConnection.java:630)
> > >
> > >         at
> > >> org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(
> > CalciteMetaImpl.java:607)
> > >
> > >         at
> > >> org.apache.calcite.avatica.AvaticaConnection.
> prepareAndExecuteInternal(
> > AvaticaConnection.java:638)
> > >
> > >         at
> > >> org.apache.calcite.avatica.AvaticaStatement.executeInternal(
> > AvaticaStatement.java:149)
> > >
> > >         at
> > >> org.apache.calcite.avatica.AvaticaStatement.executeQuery(
> > AvaticaStatement.java:218)
> > >
> > >         at
> > >> org.apache.kylin.rest.service.QueryService.execute(
> > QueryService.java:845)
> > >
> > >         at
> > >> org.apache.kylin.rest.service.QueryService.queryWithSqlMassage(
> > QueryService.java:572)
> > >
> > >         at
> > >> org.apache.kylin.rest.service.QueryService.query(
> QueryService.java:181)
> > >
> > >         at
> > >> org.apache.kylin.rest.service.QueryService.doQueryWithCache(
> > QueryService.java:428)
> > >
> > >
> > ToDateUDF likes this, and I have adding it on  KylinConfigBase.getUDFs
> >
> >
> > public class ToDateUDF {
> > >     private static final Logger logger =
> > > LoggerFactory.getLogger(ToDateUDF.class);
> > >     public String eval(String sourceDateStr, String sourceDateFormat) {
> > >         sourceDateStr = sourceDateStr.replaceAll("'", "").trim();
> > >         sourceDateFormat = sourceDateFormat.replaceAll("'",
> "").trim();
> > >         try {
> > >             SimpleDateFormat dateFormat = new
> > > SimpleDateFormat(sourceDateFormat);
> > >             long ts = dateFormat.parse(sourceDateStr).getTime();
> > >             return getFormatTime(ts, "yyyyMMdd");
> > >         } catch (ParseException e) {
> > >             logger.error("parse error", e);
> > >             logger.error("sourceDateStr:{},sourceDateFormat:{}",
> > > sourceDateStr, sourceDateFormat);
> > >             return "";
> > >         }
> > >     }
> > >     public static String getFormatTime(long timeStamp, String format) {
> > >         if (StringUtils.isBlank(format)) {
> > >             format = "yyyyMMdd";
> > >         }
> > >         Calendar cal = Calendar.getInstance();
> > >         SimpleDateFormat formatter = new SimpleDateFormat(format);
> > >         cal.setTimeInMillis(timeStamp);
> > >         return formatter.format(cal.getTime());
> > >     }
> > > }
> >
>

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