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RunHeader

mongreldb_core::sorted_run

Struct RunHeader 

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pub struct RunHeader {
Show 20 fields
    pub magic: [u8; 8],
    pub format_version: u16,
    pub header_layout_version: u16,
    pub run_id: u128,
    pub content_hash: [u8; 32],
    pub schema_id: u64,
    pub epoch_created: u64,
    pub level: u8,
    pub flags: u8,
    pub sort_key_column_id: u16,
    pub row_count: u64,
    pub min_row_id: u64,
    pub max_row_id: u64,
    pub column_count: u64,
    pub column_dir_offset: u64,
    pub index_trailer_offset: u64,
    pub encryption_descriptor_offset: u64,
    pub footer_offset: u64,
    pub encrypted_stats_offset: u64,
    pub encrypted_stats_len: u64,

}

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§magic: [u8; 8]§format_version: u16§header_layout_version: u16§run_id: u128§content_hash: [u8; 32]§schema_id: u64§epoch_created: u64§level: u8§flags: u8§sort_key_column_id: u16§row_count: u64§min_row_id: u64§max_row_id: u64§column_count: u64§column_dir_offset: u64§index_trailer_offset: u64§encryption_descriptor_offset: u64§footer_offset: u64§encrypted_stats_offset: u64

Offset/length of the AES-256-GCM-encrypted per-page min/max envelope for encrypted columns (0/0 = absent; always 0 for plaintext runs and pre-v2 files, whose zero header padding deserializes to 0 here).

§encrypted_stats_len: u64

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impl RunHeader

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pub fn is_encrypted(&self) -> bool

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pub fn is_clean(&self) -> bool

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pub fn is_uniform_epoch(&self) -> bool

Trait Implementations§

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impl Clone for RunHeader

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fn clone(&self) -> RunHeader

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for RunHeader

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for RunHeader

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Serialize for RunHeader

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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type Init = T

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Dereferences the given pointer. Read more
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