Partitioning is a performance strategy whereby you divide possibly very large groups of data into some number of smaller groups of data.
I have a mysql database table that I want to partition by date, particularly by month & year. However, when …
mysql database performance partitioningI have access to a database and I need to know the Partition Scheme definitions in the database. i.e. …
sql sql-server partitioning database-partitioning partitionI understand that partitionBy function partitions my data. If I use rdd.partitionBy(100) it will partition my data by key …
python apache-spark pyspark partitioning rddI have read the documentation (http://dev.mysql.com/doc/refman/5.1/en/partitioning.html), but I would like, in your …
mysql database partitioningIs there any way to get the number of elements in a spark RDD partition, given the partition ID? Without …
apache-spark partitioningI need to join many DataFrames together based on some shared key columns. For a key-value RDD, one can specify …
apache-spark apache-spark-sql spark-dataframe partitioning apache-spark-datasetI've partitioned my table horizontally and I'd like to see how the rows are currently distributed. Searching the web didn't …
mysql database database-design database-schema partitioning1- I'm trying to delete multiple partitions at once, but struggling to do it with either Impala or Hive. I …
sql hive hdfs partitioning impalaalter table abc add columns (stats1 map<string,string>, stats2 map<string,string>) i have altered …
hive partitioning hive-partitions hiveddlKind of edge case, when saving parquet table in Spark SQL with partition, #schema definitioin final StructType schema = DataTypes.createStructType(…
hive apache-spark-sql partitioning parquet