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ExplainStatementOptions

Struct ExplainStatementOptions 

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pub struct ExplainStatementOptions {
    pub analyze: bool,
    pub verbose: bool,
    pub format: Option<ExplainFormat>,
    pub analyze_level: Option<MetricType>,
    pub analyze_categories: Option<ExplainAnalyzeCategories>,
    pub show_statistics: Option<bool>,
}
Expand description

Normalized options for a single EXPLAIN statement.

This collects the knobs that can be set per-statement from either the legacy keyword form (EXPLAIN ANALYZE VERBOSE FORMAT tree ...) or the Postgres-style EXPLAIN (option [arg], ...) ... form supported on dialects whose Dialect::supports_explain_with_utility_options returns true.

Fields that are None / false mean “not set at the statement level” — the physical planner falls back to the corresponding session config value.

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§analyze: bool

Whether to actually execute the plan and gather metrics.

Corresponds to the ANALYZE keyword or the ANALYZE option.

§verbose: bool

Whether to include extra detail in the output.

Corresponds to the VERBOSE keyword or the VERBOSE option.

§format: Option<ExplainFormat>

Output format for the plan. When None, the session-config default (datafusion.explain.format) is used.

§analyze_level: Option<MetricType>

Override for MetricType (summary / dev) when running EXPLAIN ANALYZE.

§analyze_categories: Option<ExplainAnalyzeCategories>

Override for ExplainAnalyzeCategories (rows / bytes / timing / uncategorized) when running EXPLAIN ANALYZE.

§show_statistics: Option<bool>

Override for datafusion.explain.show_statistics.

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impl ExplainStatementOptions

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pub fn from_utility_options(opts: &[UtilityOption]) -> Result<Self>

Available on crate feature sql only.

Parse a list of UtilityOption values (produced by sqlparser’s parse_utility_options) into a normalized ExplainStatementOptions.

Argument grammar accepted:

  • OPTION — bare, implies TRUE for boolean options.
  • OPTION TRUE / OPTION FALSE
  • OPTION ON / OPTION OFF
  • OPTION 1 / OPTION 0
  • OPTION <ident> or OPTION '<string>' for format / level / metrics.

Options recognized by DataFusion are: ANALYZE, VERBOSE, FORMAT, METRICS, LEVEL, TIMING, SUMMARY, COSTS.

Postgres-only options (BUFFERS, WAL, SETTINGS, GENERIC_PLAN, MEMORY) return a helpful “not supported” error. Any other option name produces an unknown EXPLAIN option error.

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impl Clone for ExplainStatementOptions

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fn clone(&self) -> ExplainStatementOptions

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ExplainStatementOptions

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for ExplainStatementOptions

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fn default() -> ExplainStatementOptions

Returns the “default value” for a type. Read more
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impl Eq for ExplainStatementOptions

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impl Hash for ExplainStatementOptions

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl PartialEq for ExplainStatementOptions

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fn eq(&self, other: &ExplainStatementOptions) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for ExplainStatementOptions

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impl<T> Allocation for T
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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