int, such as 20180130 2018-01-30 21:39 GMT+08:00 yongjie zhao <[email protected]>:
> What is your type of dimension, date? varchar? > > On Tue, Jan 30, 2018 at 6:17 PM, 杨浩 <[email protected]> wrote: > > > If the format of "DATE" is YYYYMMDD，and superset changes it to format > > YYYY-MM-DD, so we should use the UDF > > [image: 内嵌图片 1] > > > > 2018-01-30 16:00 GMT+08:00 杨浩 <[email protected]>: > > > >> Or the problem may be that how should we write UDF to support function > in > >> filter position > >> > >> 2018-01-30 15:45 GMT+08:00 杨浩 <[email protected]>: > >> > >>> 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.deser > >>>> ialize( > >>>> > 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.enum > >>>> erable( > >>>> > 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.prepareAndExecu > >>>> teInternal( > >>>> > 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(QueryServic > >>>> e.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()); > >>>> > > } > >>>> > > } > >>>> > > >>>> > >>> > >>> > >> > > >
