Hi, the same problem happens when I try several joins together, such as
'SELECT * FROM sales INNER JOIN magasin ON sales.STO_KEY = magasin.STO_KEY
INNER JOIN eans ON (sales.BARC_KEY = eans.BARC_KEY and magasin.FORM_KEY =
eans.FORM_KEY)'
The error information is as follow:
py4j.protocol.Py4JJavaError: An error occurred while calling o1229.sql.
: java.lang.RuntimeException: [1.269] failure: ``UNION'' expected but
`INNER' fo
und
SELECT sales.Date AS Date, sales.ID_FOYER AS ID_FOYER, Sales.STO_KEY AS
STO_KEY,
sales.Quantite AS Quantite, sales.Prix AS Prix, sales.Total AS Total,
magasin.F
ORM_KEY AS FORM_KEY, eans.UB_KEY AS UB_KEY FROM sales INNER JOIN magasin ON
sale
s.STO_KEY = magasin.STO_KEY INNER JOIN eans ON (sales.BARC_KEY =
eans.BARC_KEY a
nd magasin.FORM_KEY = eans.FORM_KEY)
^
at scala.sys.package$.error(package.scala:27)
at org.apache.spark.sql.catalyst.SqlParser.apply(SqlParser.scala:60)
at org.apache.spark.sql.SQLContext.parseSql(SQLContext.scala:73)
at org.apache.spark.sql.SQLContext.sql(SQLContext.scala:260)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:231)
at
py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:379)
at py4j.Gateway.invoke(Gateway.java:259)
at
py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:133)
at py4j.commands.CallCommand.execute(CallCommand.java:79)
at py4j.GatewayConnection.run(GatewayConnection.java:207)
at java.lang.Thread.run(Thread.java:745)
I have an impression that sparksql doesn't support more than two joins
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