What is Predicate Pushdown?

The basic idea of predicate pushdown is that certain parts of SQL queries (the predicates) can be “pushed” to where the data lives.  This optimization can drastically reduce query/processing time…

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What are Lambdas in Java?

In general a lambda expression is an anonymous function, which means for some combination of inputs, there is a specific output. In the context of Java, a lambda expression is…

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