Andrey Yakovenko created SPARK-22307:
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Summary: NOT condition working incorrectly
Key: SPARK-22307
URL: https://issues.apache.org/jira/browse/SPARK-22307
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 2.1.1, 2.1.0
Reporter: Andrey Yakovenko
Suggest test case: table with x record filtered by expression expr returns y
records (< x), not(expr) does not returns x-y records. Work around: when(expr,
false).otherwise(true) is working fine.
{code}
val ctg = spark.sqlContext.read.json("/user/Catalog.json")
scala> ctg.printSchema
root[^attachment-name.zip]
|-- Id: string (nullable = true)
|-- Name: string (nullable = true)
|-- Parent: struct (nullable = true)
| |-- Id: string (nullable = true)
| |-- Name: string (nullable = true)
| |-- Parent: struct (nullable = true)
| | |-- Id: string (nullable = true)
| | |-- Name: string (nullable = true)
| | |-- Parent: struct (nullable = true)
| | | |-- Id: string (nullable = true)
| | | |-- Name: string (nullable = true)
| | | |-- Parent: string (nullable = true)
| | | |-- SKU: string (nullable = true)
| | |-- SKU: string (nullable = true)
| |-- SKU: string (nullable = true)
|-- SKU: string (nullable = true)
val col1 = expr("((((Id IN ('13MXIIAA4', '13MXIBAA4')) OR (Parent.Id IN
('13MXIIAA4', '13MXIBAA4'))) OR (Parent.Parent.Id IN ('13MXIIAA4',
'13MXIBAA4'))) OR (Parent.Parent.Parent.Id IN ('13MXIIAA4', '13MXIBAA4')))")
col1: org.apache.spark.sql.Column = ((((Id IN (13MXIIAA4, 13MXIBAA4)) OR
(Parent.Id IN (13MXIIAA4, 13MXIBAA4))) OR (Parent.Parent.Id IN (13MXIIAA4,
13MXIBAA4))) OR (Parent.Parent.Parent.Id IN (13MXIIAA4, 13MXIBAA4)))
scala> ctg.count
res5: Long = 623
scala> ctg.filter(col1).count
res2: Long = 2
scala> ctg.filter(not(col1)).count
res3: Long = 4
scala> ctg.filter(when(col1, false).otherwise(true)).count
res4: Long = 621
{code}
Table is hierarchy like structure and has a records with different number of
levels filled up. I have a suspicion that due to partly filled hierarchy
condition return null/undefined/failed/nan some times (neither true or false).
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