alias (kolom)

Geef de kolom een alias.

Syntaxis

alias(*alias, **kwargs)

Parameterwaarden

Retouren

Rubriek

Examples

df = spark.createDataFrame(
     [(2, "Alice"), (5, "Bob")], ["age", "name"])
df.select(df.age.alias("age2")).collect()

# [Row(age2=2), Row(age2=5)]

df.select(df.age.alias("age3", metadata={'max': 99})).schema['age3'].metadata['max']

# 99