Uros Stojkovic created SPARK-53877:
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Summary: Add bitmap_and_agg aggregation function
Key: SPARK-53877
URL: https://issues.apache.org/jira/browse/SPARK-53877
Project: Spark
Issue Type: New Feature
Components: Documentation, PySpark, SQL
Affects Versions: 4.1.0
Reporter: Uros Stojkovic
Introduce a function analogous to bitmap_or_agg, but performing a bitwise AND
operation instead of OR.
Specifically, the bitmap_and_agg function should output a bitmap that
represents the bitwise AND of all bitmaps in the input column. The input column
must contain bitmaps generated from bitmap_construct_agg().
Example:
{code:java}
>>> from pyspark.sql import functions as sf
>>> df = spark.createDataFrame([("30",),("70",),("F0",)], ["a"])
>>> df.select(sf.bitmap_and_agg(sf.to_binary(df.a, sf.lit("hex")))).show()
+--------------------------------+
|bitmap_and_agg(to_binary(a, hex))|
+--------------------------------+
| [30 00 00 00 00 0...|
+--------------------------------+{code}
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