code:
代码1
Driver driver = (Driver) Class.forName("org.apache.kylin.jdbc.Driver").newInstance();
Properties info = new Properties();
info.put("user", "xxx");
info.put("password", "xxx");
Connection conn = driver.connect("jdbc:
kylin://xxx/learn_kylin", info);
PreparedStatement state = conn.prepareStatement(
"select " + "part_dt, sum(price) as total_selled, count(distinct seller_id) as sellers "
+ "from kylin_sales where part_dt <= '2013-01-01' " + "group by part_dt " + "order by part_dt limit 100");
ResultSet resultSet = state.executeQuery();
System.out.print("结果:");
while (resultSet.next()) {
System.out.print(resultSet.getString(1) + "\n");
}
运行结果
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See
http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
结果:2011-12-31
2012-01-01
2012-01-02
2012-01-03
2012-01-04
2012-01-05
2012-01-06
2012-01-07
2012-01-08
2012-01-09
代码2
Driver driver = (Driver) Class.forName("org.apache.kylin.jdbc.Driver").newInstance();
Properties info = new Properties();
info.put("user", "xxx");
info.put("password", "xxx");
Connection conn = driver.connect("jdbc:
kylin://xxx/learn_kylin", info);
PreparedStatement state = conn.prepareStatement(
"select " + "part_dt, sum(price) as total_selled, count(distinct seller_id) as sellers "
+ "from kylin_sales where part_dt <= ? " + "group by part_dt " + "order by part_dt limit 100");
SimpleDateFormat simpleTime = new SimpleDateFormat("yyyy-MM-dd");
java.util.Date passUtilDate = simpleTime.parse("2013-01-01");
java.sql.Date passSqlDate = new java.sql.Date(passUtilDate.getTime());
System.out.print("条件是:" + passSqlDate + "\n");
state.setDate(1, passSqlDate);
ResultSet resultSet = state.executeQuery();
System.out.print("结果:");
while (resultSet.next()) {
System.out.print(resultSet.getString(1) + "\n");
}
运行结果
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See
http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
条件是:2013-01-01
结果:
kylin.log
2017-08-21 13:40:58,606 DEBUG [http-bio-7070-exec-9] controller.UserController:64 : authentication.getPrincipal() is
org.springframework.security.core.userdetails.User@3b40b2f: Username: ADMIN; Password: [PROTECTED]; Enabled: true; AccountNonExpired: true; credentialsNo
nExpired: true; AccountNonLocked: true; Granted Authorities: ROLE_ADMIN,ROLE_ANALYST,ROLE_MODELER
2017-08-21 13:40:58,679 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] service.QueryService:337 : Using project: learn_kylin
2017-08-21 13:40:58,679 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] service.QueryService:338 : The original query: select part_dt, sum(price) as total_selled, count(distinct seller_id) as sellers from kylin_sales where part_dt <= ? group by part_dt order by
part_dt limit 100
2017-08-21 13:40:58,692 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] routing.QueryRouter:56 : Find candidates by table TMP_KYLIN.KYLIN_SALES and project=LEARN_KYLIN : CUBE[name=kylin_sales_cube]
2017-08-21 13:40:58,692 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] routing.QueryRouter:51 : Applying rule: class org.apache.kylin.query.routing.rules.RemoveBlackoutRealizationsRule, realizations before: [kylin_sales_cube(CUBE)], realizations after: [kylin_sa
les_cube(CUBE)]
2017-08-21 13:40:58,692 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] routing.QueryRouter:51 : Applying rule: class org.apache.kylin.query.routing.rules.RemoveUncapableRealizationsRule, realizations before: [kylin_sales_cube(CUBE)], realizations after: [kylin_s
ales_cube(CUBE)]
2017-08-21 13:40:58,692 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] rules.RealizationSortRule:40 : CUBE[name=kylin_sales_cube] priority 1 cost 836.
2017-08-21 13:40:58,693 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] routing.QueryRouter:51 : Applying rule: class org.apache.kylin.query.routing.rules.RealizationSortRule, realizations before: [kylin_sales_cube(CUBE)], realizations after: [kylin_sales_cube(CU
BE)]
2017-08-21 13:40:58,693 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] routing.QueryRouter:68 : The realizations remaining: [kylin_sales_cube(CUBE)] And the final chosen one is the first one
2017-08-21 13:40:58,714 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] service.QueryService:528 : Setting current statement's max rows to 0
2017-08-21 13:40:58,718 DEBUG [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] enumerator.OLAPEnumerator:109 : query storage...
2017-08-21 13:40:58,718 DEBUG [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] gtrecord.GTCubeStorageQueryBase:253 : Does not need storage aggregation
2017-08-21 13:40:58,718 DEBUG [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] gtrecord.GTCubeStorageQueryBase:345 : Storage limit push down is impossible because the query has order by
2017-08-21 13:40:58,719 DEBUG [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] gtrecord.GTCubeStorageQueryBase:392 : Aggregate partition results is not beneficial because no storage aggregation
2017-08-21 13:40:58,719 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] gtrecord.GTCubeStorageQueryBase:151 : Cuboid identified: cube=kylin_sales_cube, cuboidId=16384, groupsD=[TMP_KYLIN.KYLIN_SALES.PART_DT], filterD=[TMP_KYLIN.KYLIN_SALES.PART_DT], limitPushdown
=2147483647, storageAggr=false
2017-08-21 13:40:58,719 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] gtrecord.CubeSegmentScanner:56 : Init CubeSegmentScanner for segment 20120101000000_20170801000000
2017-08-21 13:40:58,719 DEBUG [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] dimension.DimensionEncodingFactory:57 : Encoding Name : date, args : [], version 1
2017-08-21 13:40:58,721 DEBUG [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] gtrecord.CubeScanRangePlanner:213 : Pre-check partition col filter failed, partitionColRef UNKNOWN_MODEL:NULL.GT_MOCKUP_TABLE.0, segment start \x0B\x36\x96, segment end \x0B\x3E\x8D, range be
gin null, range end \x0A\xFA\xAA
2017-08-21 13:40:58,721 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] gtrecord.ScannerWorker:44 : Segment kylin_sales_cube[20120101000000_20170801000000] will be skipped
2017-08-21 13:40:58,744 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] gtrecord.SequentialCubeTupleIterator:71 : Using Iterators.concat to merge segment results
2017-08-21 13:40:58,745 DEBUG [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] enumerator.OLAPEnumerator:122 : return TupleIterator...
2017-08-21 13:40:58,746 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] service.QueryService:598 : Processed rows for each storageContext: 0
2017-08-21 13:40:58,746 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] service.QueryService:363 : Stats of SQL response: isException: false, duration: 67, total scan count 0
2017-08-21 13:40:58,746 DEBUG [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] util.CheckUtil:29 : query is too lightweight with duration: 67 (threshold 2000), scan count: 0 (threshold 10240), scan bytes: 0 (threshold 1048576)
2017-08-21 13:40:58,747 INFO [Query eabab58a-47aa-454c-a0ff-e5815a490d22-200] service.QueryService:286 :
==========================[QUERY]===============================
Query Id: eabab58a-47aa-454c-a0ff-e5815a490d22
SQL: select part_dt, sum(price) as total_selled, count(distinct seller_id) as sellers from kylin_sales where part_dt <= ? group by part_dt order by part_dt limit 100
User: ADMIN
Success: true
Duration: 0.067
Project: learn_kylin
Realization Names: [CUBE[name=kylin_sales_cube]]
Cuboid Ids: [16384]
Total scan count: 0
Total scan bytes: 0
Result row count: 0
Accept Partial: false
Is Partial Result: false
Hit Exception Cache: false
Storage cache used: false
Message: null
==========================[QUERY]===============================