Enum parquet2::metadata::ColumnOrder
source · [−]pub enum ColumnOrder {
TypeDefinedOrder(SortOrder),
Undefined,
}
Expand description
Column order that specifies what method was used to aggregate min/max values for statistics.
If column order is undefined, then it is the legacy behaviour and all values should be compared as signed values/bytes.
Variants
TypeDefinedOrder(SortOrder)
Column uses the order defined by its logical or physical type (if there is no logical type), parquet-format 2.4.0+.
Undefined
Undefined column order, means legacy behaviour before parquet-format 2.4.0. Sort order is always SIGNED.
Implementations
Returns sort order associated with this column order.
Trait Implementations
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
This method tests for !=
.
Auto Trait Implementations
impl RefUnwindSafe for ColumnOrder
impl Send for ColumnOrder
impl Sync for ColumnOrder
impl Unpin for ColumnOrder
impl UnwindSafe for ColumnOrder
Blanket Implementations
Mutably borrows from an owned value. Read more