Struct IceDiskRelTableScanState

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pub struct IceDiskRelTableScanState {
    pub stream: ParquetStreamReader,
    pub current_batch: Vec<Vec<Value>>,
    pub current_row: usize,
}

Expand description

Scan state for IceDiskRelTable that streams rows on demand.

Instead of loading the entire Parquet file into a Vec<Vec<Value>>, this state holds a streaming reader and buffers one batch at a time.

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§stream: ParquetStreamReader§current_batch: Vec<Vec<Value>>§current_row: usize

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impl IceDiskRelTableScanState

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pub fn next_row(&mut self) -> Option<&Vec<Value>>

Read the next row from the streaming parquet reader.

Rows are pulled from the underlying ParquetStreamReader one batch at a time, avoiding materialization of the entire dataset in memory.

Auto Trait Implementations§

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impl UnsafeUnpin for IceDiskRelTableScanState

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