How to use outer joins via (+) in spark.sql? - apache-spark

Question

I am facing error when using (+) for outer joins in spark.sql. The below is the code I run -
students = pd.DataFrame(data=[['AC'],['AM'],['AD']],columns=['name'])
marks = pd.DataFrame(data=[['AC',70],['AM',95]],columns=['name','marks'])
students = spark.createDataFrame(students)
marks = spark.createDataFrame(marks)
students.show()
marks.show()
+----+
|name|
+----+
| AC|
| AM|
| AD|
+----+
+----+-----+
|name|marks|
+----+-----+
| AC| 70|
| AM| 95|
+----+-----+
students.createOrReplaceTempView('studentsView')
marks.createOrReplaceTempView('marksView')
spark.sql('select t1.*,t2.marks from studentsView t1, marksView t2 where t1.name = t2.name(+)').show()
spark.sql('select t1.*,t2.marks from studentsView t1, marksView t2 where t1.name = t2.name(+)').show() gives the error
ParseException:
mismatched input ')' expecting {'(', 'ADD', 'AFTER', 'ALL', 'ALTER', 'ANALYZE', 'AND', 'ANTI', 'ANY', 'ARCHIVE', 'ARRAY', 'AS', 'ASC', 'AT', 'AUTHORIZATION', 'BETWEEN', 'BOTH', 'BUCKET', 'BUCKETS', 'BY', 'CACHE', 'CASCADE', 'CASE', 'CAST', 'CHANGE', 'CHECK', 'CLEAR', 'CLUSTER', 'CLUSTERED', 'CODEGEN', 'COLLATE', 'COLLECTION', 'COLUMN', 'COLUMNS', 'COMMENT', 'COMMIT', 'COMPACT', 'COMPACTIONS', 'COMPUTE', 'CONCATENATE', 'CONSTRAINT', 'COST', 'CREATE', 'CROSS', 'CUBE', 'CURRENT', 'CURRENT_DATE', 'CURRENT_TIME', 'CURRENT_TIMESTAMP', 'CURRENT_USER', 'DATA', 'DATABASE', DATABASES, 'DBPROPERTIES', 'DEFINED', 'DELETE', 'DELIMITED', 'DESC', 'DESCRIBE', 'DFS', 'DIRECTORIES', 'DIRECTORY', 'DISTINCT', 'DISTRIBUTE', 'DIV', 'DROP', 'ELSE', 'END', 'ESCAPE', 'ESCAPED', 'EXCEPT', 'EXCHANGE', 'EXISTS', 'EXPLAIN', 'EXPORT', 'EXTENDED', 'EXTERNAL', 'EXTRACT', 'FALSE', 'FETCH', 'FIELDS', 'FILTER', 'FILEFORMAT', 'FIRST', 'FOLLOWING', 'FOR', 'FOREIGN', 'FORMAT', 'FORMATTED', 'FROM', 'FULL', 'FUNCTION', 'FUNCTIONS', 'GLOBAL', 'GRANT', 'GROUP', 'GROUPING', 'HAVING', 'IF', 'IGNORE', 'IMPORT', 'IN', 'INDEX', 'INDEXES', 'INNER', 'INPATH', 'INPUTFORMAT', 'INSERT', 'INTERSECT', 'INTERVAL', 'INTO', 'IS', 'ITEMS', 'JOIN', 'KEYS', 'LAST', 'LATERAL', 'LAZY', 'LEADING', 'LEFT', 'LIKE', 'LIMIT', 'LINES', 'LIST', 'LOAD', 'LOCAL', 'LOCATION', 'LOCK', 'LOCKS', 'LOGICAL', 'MACRO', 'MAP', 'MATCHED', 'MERGE', 'MSCK', 'NAMESPACE', 'NAMESPACES', 'NATURAL', 'NO', NOT, 'NULL', 'NULLS', 'OF', 'ON', 'ONLY', 'OPTION', 'O...
== SQL ==
select t1.*,t2.marks from studentsView t1, marksView t2 where t1.name = t2.name(+)
----------------------------------------------------------------------------------^^^
Is there a string formatting issue in providing the sql query with (+)?