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pub const NEED_GLOBAL_DICTIONARY_BIT: u64 = 1u64 << 8;
pub const HAS_ADDITIONAL_KEYS_BIT: u64 = 1u64 << 9;
pub const NEED_UPDATE_DICTIONARY_BIT: u64 = 1u64 << 10;

pub const TUINT8: u64 = 0;
pub const TUINT16: u64 = 1;
pub const TUINT32: u64 = 2;
pub const TUINT64: u64 = 3;

pub const LOW_CARDINALITY_VERSION: u64 = 1;