nxcals.api.extraction.data.builders.DataFrame.exceptAll

DataFrame.exceptAll(other: DataFrame) → DataFrame

Return a new DataFrame containing rows in this DataFrame but not in another DataFrame while preserving duplicates.

This is equivalent to EXCEPT ALL in SQL. As standard in SQL, this function resolves columns by position (not by name).

Added in version 2.4.0.

Changed in version 3.4.0: Supports Spark Connect.

Parameters:

other (DataFrame) – The other DataFrame to compare to.

Return type:

DataFrame

Examples

>>> df1 = spark.createDataFrame(
...         [("a", 1), ("a", 1), ("a", 1), ("a", 2), ("b",  3), ("c", 4)], ["C1", "C2"])
>>> df2 = spark.createDataFrame([("a", 1), ("b", 3)], ["C1", "C2"])
>>> df1.exceptAll(df2).show()
+---+---+
| C1| C2|
+---+---+
|  a|  1|
|  a|  1|
|  a|  2|
|  c|  4|
+---+---+