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WindowIterator

alopex_sql::executor::query::window

Struct WindowIterator 

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pub struct WindowIterator { /* private fields */ }
Expand description

Materializing window iterator. Input order is restored after each window-local sort so the outer query controls final ordering independently.

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impl WindowIterator

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pub fn new<I: RowIterator>( input: I, windows: Vec<WindowExpr>, memory: Option<&MemoryPolicy>, ) -> Result<Self>

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impl RowIterator for WindowIterator

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fn next_row(&mut self) -> Option<Result<Row>>

Advances the iterator and returns the next row, or None if exhausted. Read more
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fn schema(&self) -> &[ColumnMetadata]

Returns the schema of rows produced by this iterator.

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