rabosh-query/app.oreshkov.rabosh.query/ExplainSource

ExplainSource

One index source of a plan, with what it would actually admit.

candidates is measured, not estimated: the sources are read to produce it. That is deliberate — an explanation that guessed would be a second cost model, and the one thing a planner must not have is two.

Properties

candidates

val candidates: Int

Ordinals this source admits across every evaluated segment.

certain

val certain: Int

Of those, the ones it decides outright — the rest are documents to open.

describes

val describes: String

estimate

val estimate: String

What the schema expected, if there was one.

index

val index: IndexHandle

Functions

toString

open override fun toString(): String