Boolean Expressions of Fielded Buffers


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This topic includes the following sections:

This section describes the functions available for evaluating Boolean expressions in which the "variables" are the values of fields in a fielded buffer or a VIEW. Functions described in this section allow you to:

Compile a Boolean expression into a compact form suitable for evaluation
Evaluate a Boolean expression against a fielded buffer or a VIEW, returning a true or false answer
Print a compiled Boolean expression

A function is provided that compiles the expression into a compact form suitable for efficient evaluation. A second function evaluates the compiled form against a fielded buffer to produce a true or false answer.