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Posted to dev@phoenix.apache.org by "Josh Mahonin (JIRA)" <ji...@apache.org> on 2016/09/11 15:30:20 UTC
[jira] [Commented] (PHOENIX-2336) Queries with small case
column-names return empty result-set when working with Spark Datasource
Plugin
[ https://issues.apache.org/jira/browse/PHOENIX-2336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15481927#comment-15481927 ]
Josh Mahonin commented on PHOENIX-2336:
---------------------------------------
Yup, this made it into master, 4.x-HBase-0.98, 4.8-HBase-0.98 and 4.8-HBase-1.2, as per the comment above.
I'm not sure about the build messages, but the code's definitely in!
> Queries with small case column-names return empty result-set when working with Spark Datasource Plugin
> -------------------------------------------------------------------------------------------------------
>
> Key: PHOENIX-2336
> URL: https://issues.apache.org/jira/browse/PHOENIX-2336
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.6.0
> Reporter: Suhas Nalapure
> Assignee: Kalyan
> Labels: verify
> Fix For: 4.9.0, 4.8.1
>
> Attachments: PHOENIX-2336_PHOENIX-2290_PHOENIX-2547_code_changes.patch, PHOENIX-2336_PHOENIX-2290_PHOENIX-2547_unit_tests.patch
>
>
> Hi,
> The Spark DataFrame filter operation returns empty result-set when column-name is in the smaller case. Example below:
> DataFrame df = sqlContext.read().format("org.apache.phoenix.spark").options(params).load();
> df.filter("\"col1\" = '5.0'").show();
> Result:
> +---+----+---+---+---+---
> | ID|col1| c1| d2| d3| d4|
> +---+----+---+---+---+---+
> +---+----+---+---+---+---+
> Whereas the table actually has some rows matching the filter condition. And if double quotes are removed from around the column name i.e. df.filter("col1 = '5.0'").show(); , a ColumnNotFoundException is thrown:
> Exception in thread "main" java.lang.RuntimeException: org.apache.phoenix.schema.ColumnNotFoundException: ERROR 504 (42703): Undefined column. columnName=D1
> at org.apache.phoenix.mapreduce.PhoenixInputFormat.getQueryPlan(PhoenixInputFormat.java:125)
> at org.apache.phoenix.mapreduce.PhoenixInputFormat.getSplits(PhoenixInputFormat.java:80)
> at org.apache.spark.rdd.NewHadoopRDD.getPartitions(NewHadoopRDD.scala:95)
> at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:239)
> at org.apache.spark.rdd.RDD$$anonfun$partitions$2.apply(RDD.scala:237)
> at scala.Option.getOrElse(Option.scala:120)
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