[jira] [Created] (SPARK-16536) Expose `sql` in PySpark shell

["Dongjoon Hyun (JIRA)" <ji...@apache.org>]

Dongjoon Hyun created SPARK-16536:
-------------------------------------

             Summary: Expose `sql` in PySpark shell
                 Key: SPARK-16536
                 URL: https://issues.apache.org/jira/browse/SPARK-16536
             Project: Spark
          Issue Type: Improvement
          Components: PySpark
            Reporter: Dongjoon Hyun
            Priority: Minor


This issue exposes `sql` in PySparkShell like Scala/R shells.

**Background**
{code}
scala> sql("select 1 a")
res0: org.apache.spark.sql.DataFrame = [a: int]
{code}

{code}
> sql("select 1")
SparkDataFrame[1:int]
{code}

**Before**
{code}
>>> sql("select 1 a")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: name 'sql' is not defined
{code}

**After**
{code}
>>> sql("select 1 a")
DataFrame[a: int]
{code}





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