datafusion_optimizer::analyzer::count_wildcard_rule

Struct CountWildcardRule

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pub struct CountWildcardRule {}
Expand description

Rewrite Count(Expr:Wildcard) to Count(Expr:Literal).

Resolves issue: https://github.com/apache/datafusion/issues/5473

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impl AnalyzerRule for CountWildcardRule

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fn analyze(&self, plan: LogicalPlan, _: &ConfigOptions) -> Result<LogicalPlan>

Rewrite plan
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fn name(&self) -> &str

A human readable name for this analyzer rule
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impl Debug for CountWildcardRule

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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 CountWildcardRule

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fn default() -> CountWildcardRule

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

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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