pub trait ColumnIndexer: Debug + Copy + Eq + Ord {
    const N_COL: usize;

    // Required method
    fn to_column(self) -> Column;
}
Expand description

A datatype expressing a generalized column, but with potentially more convenient interface than a bare column.

Required Associated Constants§

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const N_COL: usize

Total number of columns in this index.

Required Methods§

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fn to_column(self) -> Column

Flatten the column “alias” into the integer-like column.

Implementors§