alias (columna)

Asigne a la columna un alias.

Sintaxis

alias(*alias, **kwargs)

Parámetros

Devoluciones

Columna

Ejemplos

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