Multiple Detail Records - 4 in this case. (linked to the header record) Multiple Inventory Records - again, 4 - (each detail record points to one specific inventory record, but the inventory may be ...
The Spark SQL module was introduced to reduce those limitations, and while the addition of SQL capabilities expanded what Spark can do, the performance still came up short by “an order of magnitude” ...
Databricks Inc. is bringing Apache Spark to the enterprise, and Michael Armbrust, lead developer of Spark SQL at Databricks, created Spark SQL’s Catalyst Optimizer, a query API that is a fundamental ...
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