Add deprecated filterNotNull for discoverability of dropNulls #1334
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koperagen
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zaleslaw
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Jul 18, 2025
Jolanrensen
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Jul 21, 2025
| ReplaceWith("dropNulls(columns = columns)"), | ||
| DeprecationLevel.ERROR, | ||
| ) | ||
| public fun <T> DataFrame<T>.filterNotNull(columns: ColumnsSelector<T, *>): DataFrame<T> = dropNulls(columns = columns) |
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If you annotate something with ERROR, there's no need to write an implementation for it; the function cannot be called.
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We discussed that
dropNullsis not obvious for people familiar withfilterNotNullfrom Kotlin Collections and decided to keep our convention but add a few pointers