Module mz_repr::explain::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.