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Rating Stats for

Raphael Roth

Rating
1531.75 (17,048th)

Reputation
12,488 (11,732nd)

Page: 1 2 3 4 5 6 ... 15

Title	Δ
The first entry point to Spark SQL	0.00
How to add a new nullable String column in a DataFrame using Scala	+0.10
Pass Spark SQL function name as parameter in Scala	+0.49
Length of dataframe inside UDF function	0.00
Spark Scala map fails with custom function	0.00
Spark dataframe is being re-evaluated after a cache	-0.04
Spark: sort within a groupBy with dataframe	0.00
Change Data Capture using Apache Spark	0.00
reverse effect of explode function	-0.52
.rowsBetween(Window.unboundedPreceding, Window.unboundedFollowing)...	0.00
How to get the current local time or system time in spark-scala dat...	0.00
Why is the combiner never called in spark aggregateByKey?	+0.46
Filter a dataframe using a list of tuples in spark scala	+1.85
scala column object to single-column dataframe	0.00
Looping a dataframe from the column from the same table in scala	0.00
How can I count two diffferent occurences in a dataframe in one pass?	+1.85
How to parse date time?	-0.94
generate 2 rows for each row in spark using optimized DSL	0.00
UDF in Spark 1.6 Reassignment to val error	0.00
Counting elements in array column with map	0.00
orderBy Dataframe on two or three columns based on a condition spar...	0.00
Join 2 DataFrame based on lookup within a Column of collections - S...	+1.16
How to create a dynamic expression in the filter?	+2.45
Why the code is not producing the output as it is supposed to be in...	-0.01
Using COUNT and GROUP BY in Spark SQL	+0.22
performing a number of operations with a single function	+3.15
Window Vs GroupBy Performance in Spark	0.00
Find a record with max value in a group	-0.51
spark table manipulation - Column values to rows and row values tra...	-0.29
How to randomly sample a fraction of the rows in a DataFrame?	-1.74
How to pick up neighboring rows of certain rows in dataframe, spark	0.00
How to find quantiles inside agg() function after groupBy in Scala...	0.00
Cannot use null as map key when trying to map values after groupBy	0.00
Spark select item in array by max score	0.00
scala: how to get a maximun value of a column in a data frame	+0.49
How to store multiple Dataframes in the Map[String, Dataframe] and...	-0.50
How do I explode a nested Struct in Spark using Scala	+1.16
Unsupported literal type class scala.collection.immutable.HashSet$H...	0.00
Scala: copying a dataframe column into array and preserving the ori...	0.00
How to split column in Spark Dataframe to multiple columns	+0.49
spark.createDataFrame () not working with Seq RDD	0.00
Using a defined value in a filter function concerning a DataFrame i...	+0.49
How to convert each column in a dataframe to a row with ColumnName...	-2.13
Why does MutableAggregationBuffer in UserDefinedAggregateFunction r...	0.00
Unable to explode() Map[String, Struct] in Spark	0.00
Iterate over row and create batch: DataFrame	0.00
Select multiple columns from a spark data frame more concisely	-0.27
how to parallel union dataframes to one dataframe with spark 2.1	0.00
How to add Spark DataFrames to a Seq() one by one in Scala	0.00
Filtering dataframe array items based on an external array with int...	-2.29