You can set the dbtable to this:
.option("dbtable", "(select * from master_schema where 'TID' = '100_0')")
HTH,
Todd
On Thu, Jul 21, 2016 at 10:59 AM, sujeet jog <sujeet....@gmail.com> wrote:
> I have a table of size 5GB, and want to load selective rows into dataframe
> instead of loading the entire table in memory,
>
>
> For me memory is a constraint hence , and i would like to peridically load
> few set of rows and perform dataframe operations on it,
>
> ,
> for the "dbtable" is there a way to perform select * from master_schema
> where 'TID' = '100_0';
> which can load only this to memory as dataframe .
>
>
>
> Currently I'm using code as below
> val df = sqlContext.read .format("jdbc")
> .option("url", url)
> .option("dbtable", "master_schema").load()
>
>
> Thansk,
> Sujeet
>
