llkv-table 0.8.5-alpha

Columnar table using the LLKV toolkit.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46

#![forbid(unsafe_code)]

use crate::MultiColumnIndexEntryMeta;
use crate::constraints::{ConstraintId, ConstraintRecord, ForeignKeyAction};
use crate::sys_catalog::{ColMeta, TableMeta};
use crate::types::{FieldId, TableId};
use rustc_hash::FxHashMap;

/// Read-only view describing a resolved foreign key constraint.
#[derive(Clone, Debug)]
pub struct ForeignKeyView {
    pub constraint_id: ConstraintId,
    pub constraint_name: Option<String>,
    pub referencing_table_id: TableId,
    pub referencing_table_display: String,
    pub referencing_table_canonical: String,
    pub referencing_field_ids: Vec<FieldId>,
    pub referencing_column_names: Vec<String>,
    pub referenced_table_id: TableId,
    pub referenced_table_display: String,
    pub referenced_table_canonical: String,
    pub referenced_field_ids: Vec<FieldId>,
    pub referenced_column_names: Vec<String>,
    pub on_delete: ForeignKeyAction,
    pub on_update: ForeignKeyAction,
}

/// Read-only snapshot aggregating table metadata used by runtime consumers.
#[derive(Clone, Debug)]
pub struct TableView {
    pub table_meta: Option<TableMeta>,
    pub column_metas: Vec<Option<ColMeta>>,
    pub constraint_records: Vec<ConstraintRecord>,
    pub multi_column_uniques: Vec<MultiColumnIndexEntryMeta>,
    pub foreign_keys: Vec<ForeignKeyView>,
}

/// Constraint-oriented snapshot without foreign key data.
#[derive(Clone, Debug)]
pub struct TableConstraintSummaryView {
    pub table_meta: Option<TableMeta>,
    pub column_metas: Vec<Option<ColMeta>>,
    pub constraint_records: Vec<ConstraintRecord>,
    pub multi_column_uniques: Vec<MultiColumnIndexEntryMeta>,
    pub constraint_names: FxHashMap<ConstraintId, String>,
}