repartition {SparkR}R Documentation

Repartition

Description

The following options for repartition are possible:

Usage

repartition(x, ...)

## S4 method for signature 'SparkDataFrame'
repartition(x, numPartitions = NULL, col = NULL, ...)

Arguments

x

a SparkDataFrame.

...

additional column(s) to be used in the partitioning.

numPartitions

the number of partitions to use.

col

the column by which the partitioning will be performed.

Note

repartition since 1.4.0

See Also

coalesce, repartitionByRange

Other SparkDataFrame functions: SparkDataFrame-class, agg(), alias(), arrange(), as.data.frame(), attach,SparkDataFrame-method, broadcast(), cache(), checkpoint(), coalesce(), collect(), colnames(), coltypes(), createOrReplaceTempView(), crossJoin(), cube(), dapplyCollect(), dapply(), describe(), dim(), distinct(), dropDuplicates(), dropna(), drop(), dtypes(), exceptAll(), except(), explain(), filter(), first(), gapplyCollect(), gapply(), getNumPartitions(), group_by(), head(), hint(), histogram(), insertInto(), intersectAll(), intersect(), isLocal(), isStreaming(), join(), limit(), localCheckpoint(), merge(), mutate(), ncol(), nrow(), persist(), printSchema(), randomSplit(), rbind(), rename(), repartitionByRange(), rollup(), sample(), saveAsTable(), schema(), selectExpr(), select(), showDF(), show(), storageLevel(), str(), subset(), summary(), take(), toJSON(), unionAll(), unionByName(), union(), unpersist(), withColumn(), withWatermark(), with(), write.df(), write.jdbc(), write.json(), write.orc(), write.parquet(), write.stream(), write.text()

Examples



## Not run: 
##D sparkR.session()
##D path <- "path/to/file.json"
##D df <- read.json(path)
##D newDF <- repartition(df, 2L)
##D newDF <- repartition(df, numPartitions = 2L)
##D newDF <- repartition(df, col = df$"col1", df$"col2")
##D newDF <- repartition(df, 3L, col = df$"col1", df$"col2")
## End(Not run)




[Package SparkR version 3.2.4 Index]