1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

use crate::{
    database::Column,
    state::ColumnId,
};

pub mod memory_store;
pub mod transaction;

pub(crate) fn column_key(key: &[u8], column: Column) -> Vec<u8> {
    let mut ck = (column as ColumnId).to_be_bytes().to_vec();
    ck.extend_from_slice(key);
    ck
}

pub(crate) fn is_column(column_key: &[u8], column: Column) -> bool {
    let column_bytes = (column as ColumnId).to_be_bytes();
    column_key[..column_bytes.len()] == column_bytes
}