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https://issues.apache.org/jira/browse/SPARK-12741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sasi updated SPARK-12741:
-------------------------
Description:
Hi,
I'm updating my report.
I'm working with Spark 1.5.2, (used to be 1.5.0), I have a DataFrame and I have
2 method, one for collect data and other for count.
method doQuery looks like:
{code}
subscribersDataFrame.collect()
{code}
method doQueryCount looks like:
{code}
subscribersDataFrame.count()
{code}
I have few scenarios with few results:
1) Non data exists on my NoSQLDatabase results: count 0 and collect() 0
2) 3 rows exists results: count 0 and collect 3.
3) 5 rows exists results: count 2 and collect 5.
I tried to change the count code to the below code, but got the same results as
I mentioned above.
{code}
subscribersDataFrame.sql("select count(*) from tbl").count/collect[0]
{code}
Thanks,
Sasi
was:
Hi,
I noted that DataFrame count method always return wrong size.
Assume I have 11 records.
When running dataframe.count() I get 9.
Also if I'm running dataframe.collectAsList() then i'll get 9 records instead
of 11.
But if I run dataframe.collect() then i'll get 11.
Thanks,
Sasi
> DataFrame count method return wrong size.
> -----------------------------------------
>
> Key: SPARK-12741
> URL: https://issues.apache.org/jira/browse/SPARK-12741
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.5.0
> Reporter: Sasi
>
> Hi,
> I'm updating my report.
> I'm working with Spark 1.5.2, (used to be 1.5.0), I have a DataFrame and I
> have 2 method, one for collect data and other for count.
> method doQuery looks like:
> {code}
> subscribersDataFrame.collect()
> {code}
> method doQueryCount looks like:
> {code}
> subscribersDataFrame.count()
> {code}
> I have few scenarios with few results:
> 1) Non data exists on my NoSQLDatabase results: count 0 and collect() 0
> 2) 3 rows exists results: count 0 and collect 3.
> 3) 5 rows exists results: count 2 and collect 5.
> I tried to change the count code to the below code, but got the same results
> as I mentioned above.
> {code}
> subscribersDataFrame.sql("select count(*) from tbl").count/collect[0]
> {code}
> Thanks,
> Sasi
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