Module tracing

Tracing utilities for explainable plans.

Structs

ContextHash

A helper struct for wrapping entries that represent the invocation context of a function or method call into an object that renders as their hash.

ExtractStr 🔒

Helper struct that implements field::Visit and is used in the GetStr::get_str implementation for span::Attributes.

PlanTrace

A tracing layer used to accumulate a sequence of explainable plans.

TraceEntry

A struct created as a reflection of a trace_plan call.

Traits

GetStr 🔒

Helper trait used to extract attributes of type &'static str.

Functions

dbg_misc

Create a span identified by segment and trace misc in it.

dbg_plan

Create a span identified by segment and trace plan in it.

trace_plan

Trace a fragment of type T to be emitted as part of an EXPLAIN OPTIMIZER TRACE output.