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From "jaanai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PHOENIX-5171) SkipScan incorrectly filters composite primary key which the key range contains all values
Date Mon, 11 Mar 2019 04:17:00 GMT

     [ https://issues.apache.org/jira/browse/PHOENIX-5171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

jaanai updated PHOENIX-5171:
----------------------------
    Attachment: PHOENIX-5171-master-v2.patch

> SkipScan incorrectly filters composite primary key which the key range contains all values
> ------------------------------------------------------------------------------------------
>
>                 Key: PHOENIX-5171
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5171
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 5.0.0, 4.14.1
>            Reporter: jaanai
>            Assignee: jaanai
>            Priority: Critical
>             Fix For: 5.1.0
>
>         Attachments: PHOENIX-5171-master-v2.patch, PHOENIX-5171-master.patch
>
>
> Running the below SQL:
> {code:sql}
> create table if not exists aiolos(
> vdate varchar,
> tab varchar,
> dev tinyint not null,
> app varchar,
> target varchar,
> channel varchar,
> one varchar,
> two varchar,
> count1 integer,
> count2 integer,
> CONSTRAINT PK PRIMARY KEY (vdate,tab,dev,app,target,channel,one,two));
> upsert into aiolos values('2018-02-14','channel_agg',2,null,null,'A004',null,null,2,2);
> upsert into aiolos values('2018-02-14','channel_agg',2,null,null,null,null,null,2,2);
> SELECT * FROM aiolos WHERE dev = 2 AND vdate BETWEEN '2018-02-10' AND '2019-02-19' AND
tab = 'channel_agg' and channel='A004';
> {code}
> Throws exception:
> {code:java}
> Caused by: java.lang.IllegalStateException: The next hint must come after previous hint
(prev=2018-02-14\x00channel_agg\x00\x82//LATEST_TIMESTAMP/Maximum/vlen=0/seqid=0, next=2018-02-14\x00channel_agg\x00\x82//LATEST_TIMESTAMP/Maximum/vlen=0/seqid=0,
kv=2018-02-14\x00channel_agg\x00\x82/0:\x00\x00\x00\x00/1550642992223/Put/vlen=4/seqid=5445463)
> 	at org.apache.phoenix.filter.SkipScanFilter.setNextCellHint(SkipScanFilter.java:171)
> 	at org.apache.phoenix.filter.SkipScanFilter.filterKeyValue(SkipScanFilter.java:145)
> 	at org.apache.hadoop.hbase.filter.FilterList.filterKeyValue(FilterList.java:264)
> 	at org.apache.hadoop.hbase.regionserver.ScanQueryMatcher.match(ScanQueryMatcher.java:418)
> 	at org.apache.hadoop.hbase.regionserver.StoreScanner.next(StoreScanner.java:557)
> 	at org.apache.hadoop.hbase.regionserver.KeyValueHeap.next(KeyValueHeap.java:147)
> 	at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.populateResult(HRegion.java:6308)
> 	at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextInternal(HRegion.java:6459)
> 	at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:6246)
> 	at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.nextRaw(HRegion.java:6232)
> 	at org.apache.phoenix.iterate.RegionScannerFactory$1.nextRaw(RegionScannerFactory.java:175)
> 	... 8 more
> {code}
> The caused by adding skipped row into nextCellHintMap. Actually,  due to we don't store
NULL at the end of the key for the variable data type,  these keys should be skipped when
invokes filterKeyValue,  because they are smaller than the rest of the positions of the slots.



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