318. struct() | How to convert flat structure to a nested column structure? |
How to convert flat structure to a nested column structure?
How to convert combining multiple columns into a single struct column?
GitHub: https://github.com/enuganti/data-engi...
Syntax: struct(*columns); columns (list, set, str or column)
from pyspark.sql.functions import struct, col
Method 1:
df = df.select(struct("f_name", "l_name").alias("name"))
Method 2:
df = df.select(struct(["f_name", "l_name"]).alias("name"))
Method 3:
df = df.select(struct([col("f_name"), col("l_name")]).alias("name"))
Method 4:
columns = ("f_name", "l_name")
df = df.select(struct(*columns).alias("name"))
Method 5:
df = df.withColumn("name", struct("f_name", "l_name"))
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