Enum MetadataDecodeProvenance 

pub enum MetadataDecodeProvenance {
    ColumnsPresenceTail {
        column_id: u32,
        row_count: u32,
        byte_offset: u64,
        observed_byte: u8,
        allowed_mask: u8,
    },
    ColumnsDictionaryCode {
        column_id: u32,
        row: u32,
        byte_offset: u64,
        code: u32,
        dictionary_cardinality: u32,
    },
    ColumnsRawStringLength {
        column_id: u32,
        row: u32,
        byte_offset: u64,
        declared_bytes: u32,
        available_bytes: u64,
    },
    AliveBitmapTruncation {
        row_count: u32,
        byte_offset: u64,
        declared_bytes: u32,
        observed_bytes: u32,
    },
}

Exact persisted metadata facts captured at a semantic decoder refusal.

Variants

ColumnsPresenceTail

Unused bits in the last nullable-presence byte were non-zero.

Fields

column_id: u32

Column whose presence map was rejected.

row_count: u32

Declared segment row count.

byte_offset: u64

Offset of the rejected byte within the Columns region.

observed_byte: u8

Byte read from persistence.

allowed_mask: u8

Mask of bits allowed for the final partial byte.

ColumnsDictionaryCode

A present dictionary row named a code outside the persisted dictionary.

Fields

column_id: u32

Column whose code was rejected.

row: u32

Row whose code was rejected.

byte_offset: u64

Offset of the code within the Columns region.

code: u32

Code read from persistence.

dictionary_cardinality: u32

Number of persisted dictionary entries.

ColumnsRawStringLength

A raw-string length exceeded the remaining Columns-region bytes.

Fields

column_id: u32

Column whose value was rejected.

row: u32

Row whose value was rejected.

byte_offset: u64

Offset of the length field within the Columns region.

declared_bytes: u32

Payload length read from persistence.

available_bytes: u64

Bytes available after the length field.

AliveBitmapTruncation

The Alive bitmap ended before its declared byte length.

Fields

row_count: u32

Declared segment row count.

byte_offset: u64

Offset where bitmap bytes begin within the Alive region.

declared_bytes: u32

Persisted bitmap byte length.

observed_bytes: u32

Bytes actually available after the length field.

Trait Implementations

impl Clone for MetadataDecodeProvenance

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MetadataDecodeProvenance

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for MetadataDecodeProvenance

impl PartialEq for MetadataDecodeProvenance

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for MetadataDecodeProvenance