[
https://issues.apache.org/jira/browse/PHOENIX-4347?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16235907#comment-16235907
]
Josh Mahonin commented on PHOENIX-4347:
---------------------------------------
Can you post this question to the phoenix-users mailing list? I suspect someone
may have run into this and found a way to do it already. However, if you're
able to provide a reproducible unit test in PhoenixSparkIT [ 1 ] which
necessitates a patch, a contribution would be most welcome.
Thanks!
[ 1 ]
https://github.com/apache/phoenix/blob/master/phoenix-spark/src/it/scala/org/apache/phoenix/spark/PhoenixSparkIT.scala
> Spark Dataset loaded using Phoenix Spark Datasource - Timestamp filter issue
> ----------------------------------------------------------------------------
>
> Key: PHOENIX-4347
> URL: https://issues.apache.org/jira/browse/PHOENIX-4347
> Project: Phoenix
> Issue Type: Bug
> Affects Versions: 4.11.0
> Environment: CentOS 6.5, Fedora 25
> Reporter: Lokesh Kumar
> Priority: Major
> Labels: phoenix, spark-sql
>
> Created a Phoenix table with below schema:
> {code:java}
> CREATE TABLE IF NOT EXISTS sample_table (
> id VARCHAR NOT NULL,
> metricid VARCHAR NOT NULL,
> timestamp TIMESTAMP NOT NULL,
> metricvalue DOUBLE,
> CONSTRAINT st_pk PRIMARY KEY(id,metricid,timestamp)) SALT_BUCKETS = 20;
> {code}
> Inserted some data into this and loaded as Spark Dataset using the Phoenix
> spark datasource ('org.apache.phoenix.spark') options.
> The Spark Dataset's schema is as given below:
> root
> |-- ID: string (nullable = true)
> |-- METRICID: string (nullable = true)
> |-- TIMESTAMP: timestamp (nullable = true)
> |-- METRICVALUE: double (nullable = true)
> I apply the Dataset's filter operation on Timestamp column as given below:
> {code:java}
> Dataset<Row> ds = <Derived from Phoenix>
> ds = ds.filter("TIMESTAMP >= CAST('2017-10-31 00:00:00.0' AS TIMESTAMP)")
> {code}
> This operation throws me an exception as:
> testPhoenixTimestamp(DatasetTest):
> org.apache.phoenix.exception.PhoenixParserException: ERROR 604 (42P00):
> Syntax error. Mismatched input. Expecting "RPAREN", got "00" at line 1,
> column 145.
> The generated query looks like this:
> {code:java}
> 2017-11-02 15:29:31,722 INFO [main]
> org.apache.phoenix.mapreduce.PhoenixInputFormat
> Select Statement: SELECT "ID","METRICID","TIMESTAMP","0"."METRICVALUE" FROM
> SAMPLE_TABLE WHERE ( "TIMESTAMP" IS NOT NULL AND "TIMESTAMP" >= 2017-10-31
> 00:00:00.0)
> {code}
> The issue is with Timestamp filter condition, where the timestamp value is
> not wrapped in to_timestamp() function.
> I have fixed this locally in org.apache.phoenix.spark.PhoenixRelation class
> compileValue() function, by checking the value's class. If it is
> java.sql.Timestamp then I am wrapping the value with to_timestamp() function.
> Please let me know if there is another way of correctly querying Timestamp
> values in Phoenix through Spark's Dataset API.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
