Struct mz_adapter::explain::optimizer_trace::OptimizerTrace
source · pub struct OptimizerTrace(Dispatch);
Expand description
Provides functionality for tracing plans generated by the execution of an optimization pipeline.
Internally, this will create a layered tracing::subscriber::Subscriber
consisting of one layer for each supported plan type T
.
Use tracing::dispatcher::set_default
to trace in synchronous context.
Use tracing::instrument::WithSubscriber::with_subscriber(&optimizer_trace)
to trace the result of a Future
.
The OptimizerTrace::drain_all
method on the created instance can be
then used to collect the trace, and OptimizerTrace::drain_all
to obtain
the collected trace as a vector of TraceEntry
instances.
Tuple Fields§
§0: Dispatch
Implementations§
source§impl OptimizerTrace
impl OptimizerTrace
sourcepub fn new(broken: bool, filter: Option<&'static str>) -> OptimizerTrace
pub fn new(broken: bool, filter: Option<&'static str>) -> OptimizerTrace
Create a new OptimizerTrace
.
The instance will only accumulate TraceEntry
instances along
the prefix of the given path
if path
is present, or it will
accumulate all TraceEntry
instances otherwise.
sourcepub fn into_rows(
self,
format: ExplainFormat,
config: &ExplainConfig,
humanizer: &dyn ExprHumanizer,
row_set_finishing: Option<RowSetFinishing>,
dataflow_metainfo: DataflowMetainfo,
stage: ExplainStage,
stmt_kind: ExplaineeStatementKind
) -> Result<Vec<Row>, AdapterError>
pub fn into_rows( self, format: ExplainFormat, config: &ExplainConfig, humanizer: &dyn ExprHumanizer, row_set_finishing: Option<RowSetFinishing>, dataflow_metainfo: DataflowMetainfo, stage: ExplainStage, stmt_kind: ExplaineeStatementKind ) -> Result<Vec<Row>, AdapterError>
Convert the optimizer trace into a vector or rows that can be returned to the client.
sourcepub fn drain_all(
self,
format: ExplainFormat,
config: &ExplainConfig,
humanizer: &dyn ExprHumanizer,
row_set_finishing: Option<RowSetFinishing>,
dataflow_metainfo: DataflowMetainfo
) -> Result<Vec<TraceEntry<String>>, ExplainError>
pub fn drain_all( self, format: ExplainFormat, config: &ExplainConfig, humanizer: &dyn ExprHumanizer, row_set_finishing: Option<RowSetFinishing>, dataflow_metainfo: DataflowMetainfo ) -> Result<Vec<TraceEntry<String>>, ExplainError>
Collect all traced plans for all plan types T
that are available in
the wrapped dispatcher::Dispatch
.
sourcefn drain_explainable_entries<T>(
&self,
format: &ExplainFormat,
context: &mut ExplainContext<'_>
) -> Result<Vec<TraceEntry<String>>, ExplainError>where
T: Clone + Debug + 'static,
for<'a> Explainable<'a, T>: Explain<'a, Context = ExplainContext<'a>>,
fn drain_explainable_entries<T>( &self, format: &ExplainFormat, context: &mut ExplainContext<'_> ) -> Result<Vec<TraceEntry<String>>, ExplainError>where T: Clone + Debug + 'static, for<'a> Explainable<'a, T>: Explain<'a, Context = ExplainContext<'a>>,
Collect all trace entries of a plan type T
that implements
Explainable
.
sourcefn drain_scalar_entries<T>(&self) -> Vec<TraceEntry<String>>where
T: Clone + Debug + 'static + Display,
fn drain_scalar_entries<T>(&self) -> Vec<TraceEntry<String>>where T: Clone + Debug + 'static + Display,
Collect all trace entries of a plan type T
.
sourcefn drain_string_entries(&self) -> Vec<TraceEntry<String>>
fn drain_string_entries(&self) -> Vec<TraceEntry<String>>
Collect all trace entries with plans of type String
.
Trait Implementations§
source§impl Debug for OptimizerTrace
impl Debug for OptimizerTrace
source§impl From<&OptimizerTrace> for Dispatch
impl From<&OptimizerTrace> for Dispatch
source§fn from(value: &OptimizerTrace) -> Self
fn from(value: &OptimizerTrace) -> Self
Auto Trait Implementations§
impl !RefUnwindSafe for OptimizerTrace
impl Send for OptimizerTrace
impl Sync for OptimizerTrace
impl Unpin for OptimizerTrace
impl !UnwindSafe for OptimizerTrace
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