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check_distinct_key_columns

mz_sql::plan::statement::dml

Function check_distinct_key_columns 

Source 
fn check_distinct_key_columns(
    order_by: &[ColumnOrder],
    output_columns: &[(usize, &ColumnName)],
) -> Result<(), PlanError>
Expand description

Ensures each ColumnOrder in order_by references a distinct column, returning DuplicateKeyColumnInSubscribeEnvelope on the first repeat.