nxcals.api.extraction.data.builders.DataFrame.alias

DataFrame.alias(alias: str) → DataFrame

Returns a new DataFrame with an alias set.

New in version 1.3.0.

Parameters:

alias (str) – an alias name to be set for the DataFrame.

Examples

>>> from pyspark.sql.functions import *
>>> df_as1 = df.alias("df_as1")
>>> df_as2 = df.alias("df_as2")
>>> joined_df = df_as1.join(df_as2, col("df_as1.name") == col("df_as2.name"), 'inner')
>>> joined_df.select("df_as1.name", "df_as2.name", "df_as2.age")                 .sort(desc("df_as1.name")).collect()
[Row(name='Bob', name='Bob', age=5), Row(name='Alice', name='Alice', age=2)]