Mateusz Buśkiewicz created SPARK-15382:
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Summary: monotonicallyIncreasingId doesn't work when data is
upsampled
Key: SPARK-15382
URL: https://issues.apache.org/jira/browse/SPARK-15382
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 1.6.1
Reporter: Mateusz Buśkiewicz
Assigned ids are not unique
{code}
from pyspark.sql import Row
from pyspark.sql.functions import monotonicallyIncreasingId
hiveContext.createDataFrame([Row(a=1), Row(a=2)]).sample(True,
10.0).withColumn('id', monotonicallyIncreasingId()).collect()
{code}
Output:
{code}
[Row(a=1, id=429496729600),
Row(a=1, id=429496729600),
Row(a=1, id=429496729600),
Row(a=1, id=429496729600),
Row(a=1, id=429496729600),
Row(a=1, id=429496729600),
Row(a=1, id=429496729600),
Row(a=2, id=867583393792),
Row(a=2, id=867583393792),
Row(a=2, id=867583393792),
Row(a=2, id=867583393792),
Row(a=2, id=867583393792),
Row(a=2, id=867583393792),
Row(a=2, id=867583393792),
Row(a=2, id=867583393792),
Row(a=2, id=867583393792),
Row(a=2, id=867583393792),
Row(a=2, id=867583393792)]
{code}
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