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PySpark Alias is a function in PySpark that is used to make a special signature for a column or table that is more often readable and shorter.

Syntax of Pyspark Alias

PySpark Column Alias In PySpark, you can use the alias method of a Column to give a column a new name. This can be useful when you want to use the same column multiple times in a query …

Returns a new DataFrame with an alias set. Same as As().

Alias is inherited from SQL syntax. That's a way to rename a variable within a query (e.g. a select ). It avoids creating a temporary name you don't choose and having to …

pyspark.sql.DataFrame.alias — PySpark 3.3.1 documentation pyspark.sql.DataFrame.alias ¶ DataFrame.alias(alias: str) → pyspark.sql.dataframe.DataFrame [source] ¶ Returns a new DataFrame with an alias set. New in version 1.3.0. Parameters aliasstr an alias name to be set for the DataFrame. Examples

To create an alias of a column, we will use the .alias() method. This method is SQL equivalent of the 'AS' keyword which is used to create ...

PySpark is an interface for Apache Spark in Python. It not only allows you to write Spark applications using Python APIs, but also provides the PySpark shell for interactively analyzing …

df1=df.select(col(“old_col_nm”).alias(“new_col_nm”),col(“old_col_nm2”).alias(“New_col_nm_2”)) — This can be used to rename the column but since we have ...

pyspark.sql.Column.alias¶ Column.alias(*alias, **kwargs)[source]¶ Returns this column aliased with a new name or names (in the case of expressions that return more than one column, such as …

pyspark.sql.DataFrame.alias — PySpark 3.3.1 documentation pyspark.sql.DataFrame.alias ¶ DataFrame.alias(alias: str) → pyspark.sql.dataframe.DataFrame [source] ¶ Returns a new …

pyspark.sql.Column.alias() returns the aliased with a new name or names. This method is the SQL equivalent of the as keyword used to provide a ...

pyspark.sql.Column.alias ¶ Column.alias(*alias: str, **kwargs: Any) → pyspark.sql.column.Column [source] ¶ Returns this column aliased with a new name or names (in the case of expressions …

PySpark alias Column Name pyspark.sql.Column.alias () returns the aliased with a new name or names. This method is the SQL equivalent of the as keyword used to provide a different column name on the SQL result. Following is the syntax of the Column.alias () method. # Syntax of Column.alias () Column. alias (* alias, ** kwargs) Parameters

from pyspark.sql.functions import sum df.groupBy("state") \ .agg(sum("salary").alias("sum_salary"))

Mar 24, 2021 · Solution – PySpark Column alias after groupBy() In PySpark, the approach you are using above doesn’t have an option to rename/alias a Column after groupBy() aggregation but there are many other ways to give a column alias for groupBy() agg column, let’s see them with examples (same can be used for Spark with Scala). Use the one that fit’s your need.

1. @Amanda what about data_wide = df.groupBy ('user_id').pivot ('type').agg (* [f.sum (x).alias (x) for x in df.columns if x not in {"user_id", "type"}]) where f comes from import …

pyspark.sql.Column.alias ¶ Column.alias(*alias: str, **kwargs: Any) → pyspark.sql.column.Column [source] ¶ Returns this column aliased with a new name or names (in the case of expressions that return more than one column, such as explode). New in version 1.3.0. Parameters aliasstr desired column names (collects all positional arguments passed)

PySpark alias Column Name pyspark.sql.Column.alias () returns the aliased with a new name or names. This method is the SQL equivalent of the as keyword used to provide a different column name on the SQL result. Following is the syntax of the Column.alias () method. # Syntax of Column.alias () Column. alias (* alias, ** kwargs) Parameters

Returns this column aliased with a new name or names (in the case of expressions that return more than one column, such as explode). New in version 1.3.0.

Apr 29, 2020 · Alias is inherited from SQL syntax. That's a way to rename a variable within a query (e.g. a select ). It avoids creating a temporary name you don't choose and having to rename the variable afterwards with something like withColumnRenamed. For instance, df.select ( [count (when (isnan (c), c)).alias (c) for c in df.columns]).show () Ensures that the result of the count operation will return a new variable with the same name than in df object.

PySpark DataFrame's alias(~) method gives an alias to the DataFrame that you can then refer to in string statements.

In PySpark, the approach you are using above doesn’t have an option to rename/alias a Column after groupBy () aggregation but there are many other ways to give a …

Option 3. using alias, in Scala you can also use as. from pyspark.sql.functions import col data = data.select(col("Name").alias("name"), ...