Hi, All,
I need to overwrite data in a Hive table and I use the following code to
do so:
df = sqlContext.sql(my-spark-sql-statement);
df.count
df.write.format("orc").mode("overwrite").saveAsTable("foo") // I also
tried 'insertInto("foo")
The "df.count" shows that there are only 452 records in the result.
But "select count(*) from foo" (run in beeline) shows that there are 716
records.
The final table contains more data than expected.
Does anyone know the reason and how to overwrite data in a Hive table with
spark sql?
I'm using spark 2.2
Thanks
Boying
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