Convert JSON to TSV with jq
jq is a lightweight JSON command line processor that makes many JSON processing tasks very easy. A common task when working with JSON is to convert records into a TSV…
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January 25, 2021
Convert JSON to CSV with jq
jq is a lightweight JSON command line processor that makes many JSON processing tasks very easy. A common task when working with JSON is to convert records into a CSV…
January 25, 2021
What is the Java Supplier Interface?
The Java Supplier interface of the java.util.function package is a functional interface that is often used as an assignment target for lambda expressions. The get() method is the class’s only…
January 25, 2021
What is the Java Function Interface?
The Java Function interface of the java.util.function package is a functional interface that is often used as an assignment target for lambda expressions. The apply(T t) method is the class’s…
January 25, 2021
What is the Java Predicate Interface?
The Java Predicate interface of the java.util.function package is a functional interface that is often used as an assignment target for lambda expressions. The test(T t) method is the class’s…
January 25, 2021
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…
January 25, 2021
What is the Java Consumer Interface?
The Java Consumer interface of the java.util.function package is a functional interface that is often used as an assignment target for lambda expressions. accept(T t) is the interface’s single abstract…
January 25, 2021