undefined_variable

undefined_variable has asked 3 questions and find answers to 18 problems.

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undefined_variable questions

Count of List values in spark - dataframe
Range query on secondary index in cassandra

undefined_variable answers

Find minimum value AND include correct column-values
Use MongoDump to return on specific columns
Does Cassandra read have inconsistency?
Which CQL version corresponds to which Cassandra version?
one player table - two team dropdowns - how to get no double players (mysql,php,ajax)
Group mysql results by category and display them into groups under each category
Does nodetool for cassandra only gather data for a single node or for the entire cluster?
How to import the sparksession
Strong Consistency in Cassandra
Change MySQL error message language