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Jacek Laskowski

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1525.89 (22,827th) 		Reputation
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Title Δ
How to define Scala API for Kafka Streams as dependency in build.sbt? -0.02
How to restart pyspark streaming query from checkpoint data? 0.00
Why does join use rows that were sent after watermark of 20 seconds? -0.51
Why does query throw ClassCastException "SerializedOffset cann... 0.00
How to split column on the first occurrence of a string? -0.89
How to generate datasets dynamically based on schema? +0.02
How to write result of structured query with hive format? 0.00
Why "java.lang.ClassNotFoundException: Failed to find data sou... 0.00
How does awaitTermination() help for writeStream? -0.02
Why could streaming join of queries over kafka topics take so long? 0.00
How to join datasets with values between other values? 0.00
What do the number prefixes mean in explain operator? 0.00
How to find installation directory of Apache Spark package in Homeb... 0.00
How to update an existing entry in ORC streaming sink? 0.00
How to access metrics of streaming query? 0.00
Does data arriving to the topic of GlobalKTable trigger join? -1.89
what is the difference between sparksession.config() and spark.conf... +0.17
What type to give for java.time.Instant while fetching StructType f... 0.00
Which operation is faster: filter or withColumn with when? 0.00
How to extract tables with data from .sql dumps using Spark? +0.48
Why do some operators return DataFrame while others Dataset? 0.00
How to process values in CSV format in streaming queries over Kafka... 0.00
How to register a custom AppHistoryServerPlugin? 0.00
How to get a string representation of DataFrame (as does Dataset.sh... -0.02
How to extract values from JSON-encoded column? +1.74
How does Spark Streaming schedule map tasks between driver and exec... 0.00
How to drop duplicates considering only subset of columns? 0.00
How to change the location of _spark_metadata directory? 0.00
What dependencies for Structured Streaming with Kafka? 0.00
How to infer schema of JSON files? 0.00
Why would IntelliJ IDEA not recognize standard functions and $s? 0.00
How to construct and persist a reference object per worker in a Spa... -0.53
How to use map for distributed actions? 0.00
What is SubqueryAlias node in analyzed logical plan? 0.00
How to calculate average of numbers from a text input file? +0.48
How to update an array column? 0.00
How to add a new column with maximum value? +0.49
How to filter out rows based on previous consecutive rows? +1.99
How to rename duplicated columns after join? +1.16
How to spark-submit with main class in jar? +0.75
How to specify cluster location in HADOOP_CONF_DIR? 0.00
How to load CSV file with records on multiple lines? +0.49
Why is predicate pushdown not used in typed Dataset API (vs untyped... 0.00
How to create a column reference dynamically? 0.00
Why does Spark Analyzer report "Correlated scalar subqueries m... +0.16
How to use Spark SQL as in-memory database? 0.00
How to evaluate expressions that are the column values? -0.50
How to load DataFrame from semi-structured textfile? -1.87
What "module" takes care of assigning partitions to speci... 0.00
How to get table names from SQL query? +0.48