NullPointerException using except to exclude double nested column #761
Description
To reproduce:
val df = dataFrameOf("a.b", "a.c.d", "d.e", "d.f")(1, 3.0, 2, "b") .move { all() }.into { it.name.split(".").toPath() }| a | d |
|---|---|
| {"b": 1, "c": {"d": 3}} | {"e": 2, "f": "b"} |
This works:
df.select { cols(a) except a.b }This breaks:
df.select { cols(a) except a.c.d }java.lang.NullPointerException at org.jetbrains.kotlinx.dataframe.impl.columns.UtilsKt$allColumnsExceptKeepingStructure$2.invoke(Utils.kt:454) at org.jetbrains.kotlinx.dataframe.impl.columns.UtilsKt$allColumnsExceptKeepingStructure$2.invoke(Utils.kt:454) at org.jetbrains.kotlinx.dataframe.api.ReplaceKt.with(replace.kt:53) at org.jetbrains.kotlinx.dataframe.impl.columns.UtilsKt.allColumnsExceptKeepingStructure(Utils.kt:454) at org.jetbrains.kotlinx.dataframe.impl.columns.UtilsKt.allColumnsExceptKeepingStructure$default(Utils.kt:412) at org.jetbrains.kotlinx.dataframe.api.AllExceptKt$exceptInternal$1.invoke(allExcept.kt:1193) at org.jetbrains.kotlinx.dataframe.api.AllExceptKt$exceptInternal$1.invoke(allExcept.kt:1190) at org.jetbrains.kotlinx.dataframe.impl.columns.ConstructorsKt$createColumnSet$1.resolve(constructors.kt:154) at org.jetbrains.kotlinx.dataframe.impl.columns.UtilsKt.resolve(Utils.kt:480) at org.jetbrains.kotlinx.dataframe.impl.columns.ConstructorsKt$toColumnSet$1.invoke(constructors.kt:178) at org.jetbrains.kotlinx.dataframe.impl.columns.ConstructorsKt$toColumnSet$1.invoke(constructors.kt:175) at org.jetbrains.kotlinx.dataframe.impl.columns.ConstructorsKt$createColumnSet$1.resolve(constructors.kt:154) at org.jetbrains.kotlinx.dataframe.impl.columns.UtilsKt.resolve(Utils.kt:480) at org.jetbrains.kotlinx.dataframe.impl.UtilsKt.getColumnsWithPaths(Utils.kt:201) at org.jetbrains.kotlinx.dataframe.impl.UtilsKt.getColumnsImpl(Utils.kt:196) at org.jetbrains.kotlinx.dataframe.DataFrame$DefaultImpls.get(DataFrame.kt:78) at org.jetbrains.kotlinx.dataframe.impl.DataFrameImpl.get(DataFrameImpl.kt:32) at org.jetbrains.kotlinx.dataframe.api.SelectKt.select(select.kt:64) at Line_70_jupyter.<init>(Line_70.jupyter.kts:1) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:499) at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:480)