Struct ReadText

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pub struct ReadText;

Expand description

READ_TEXT(path [, match_regex]) - Read a text file line by line.

Emits (line_num, line) rows. Optional match_regex filters source lines before materializing them, which is the primary fast path for large logs.

Trait Implementations§

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impl TableGenerator for ReadText

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fn name(&self) -> &str

Get the name of the generator function (e.g., “GENERATE_PRIMES”)

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fn columns(&self) -> Vec<DataColumn>

Get the column definitions for the generated table

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fn generate(&self, args: Vec<DataValue>) -> Result<Arc<DataTable>>

Generate the table based on the provided arguments Arguments are evaluated expressions from the SQL query

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fn description(&self) -> &str

Get a description of what this generator does

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fn arg_count(&self) -> usize

Get the expected number of arguments

Auto Trait Implementations§

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impl UnwindSafe for ReadText

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

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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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

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

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