uqa-sql 0.4.0

PostgreSQL-compatible SQL compiler built on libpg_query
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
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111

//
// Unified Query Algebra
//
// Copyright (c) 2023-2026 Cognica, Inc.
//

use super::*;

fn relation_schema(name: &str) -> Vec<(String, ColumnType)> {
    resolve_virtual_relation(&[], name).unwrap().schema()
}

#[test]
fn pg18_catalog_shapes_include_empty_relations_and_removed_columns() {
    let description = relation_schema("pg_catalog.pg_description");
    assert_eq!(description.len(), 4);
    assert_eq!(description[0], ("objoid".into(), ColumnType::Oid));

    let attrdef = relation_schema("pg_attrdef");
    assert_eq!(
        attrdef
            .iter()
            .map(|(name, _)| name.as_str())
            .collect::<Vec<_>>(),
        vec!["oid", "adrelid", "adnum", "adbin"]
    );
}

#[test]
fn pg18_information_schema_domains_retain_their_oid_identity() {
    let routines = relation_schema("information_schema.routines");
    assert_eq!(routines.len(), 82);
    assert!(matches!(
        routines[0].1,
        ColumnType::Domain { oid: 13_312, .. }
    ));
    assert!(matches!(
        routines[54].1,
        ColumnType::Domain { oid: 13_318, .. }
    ));
}

#[test]
fn ag_catalog_relations_resolve_qualified_or_through_the_search_path() {
    let resolution = Vec::new();
    assert_eq!(
        resolve_virtual_relation(&resolution, "ag_catalog.ag_graph"),
        Some(VirtualRelation::AgGraph)
    );
    assert_eq!(
        resolve_virtual_relation(&resolution, "AG_CATALOG.AG_LABEL"),
        Some(VirtualRelation::AgLabel)
    );
    assert_eq!(resolve_virtual_relation(&resolution, "ag_graph"), None);
    let resolution = vec!["ag_catalog".into(), "$user".into(), "public".into()];
    assert_eq!(
        resolve_virtual_relation(&resolution, "ag_graph"),
        Some(VirtualRelation::AgGraph)
    );
    assert_eq!(
        resolve_virtual_relation(&resolution, "ag_label"),
        Some(VirtualRelation::AgLabel)
    );
    assert_eq!(
        resolve_virtual_relation(&resolution, "public.ag_graph"),
        None
    );

    let graph = relation_schema("ag_catalog.ag_graph");
    assert_eq!(
        graph
            .iter()
            .map(|(name, _)| name.as_str())
            .collect::<Vec<_>>(),
        vec!["graphid", "name", "namespace"]
    );
    assert_eq!(graph[2].1, ColumnType::Regnamespace);
    let label = relation_schema("ag_catalog.ag_label");
    assert_eq!(
        label
            .iter()
            .map(|(name, _)| name.as_str())
            .collect::<Vec<_>>(),
        vec!["name", "graph", "id", "kind", "relation", "seq_name"]
    );
    assert!(matches!(&label[2].1, ColumnType::Domain { name, .. } if name == "label_id"));
    assert!(matches!(&label[3].1, ColumnType::Domain { name, .. } if name == "label_kind"));
}

#[test]
fn catalog_names_preserve_quoted_case_and_information_schema_search_visibility() {
    assert_eq!(
        resolve_virtual_relation(&[], r#""pg_catalog"."pg_class""#),
        Some(VirtualRelation::PgClass)
    );
    for name in [
        r#""PG_CATALOG".pg_class"#,
        r#"pg_catalog."PG_CLASS""#,
        r#""pg_catalog.pg_class""#,
    ] {
        assert_eq!(resolve_virtual_relation(&[], name), None, "{name}");
    }
    assert_eq!(resolve_virtual_relation(&[], "tables"), None);
    assert_eq!(
        resolve_virtual_relation(&["information_schema".into()], "tables"),
        Some(VirtualRelation::InformationTables)
    );
    assert_eq!(VirtualRelation::PgAuthMembers.oid(), 1261);
    assert_eq!(VirtualRelation::PgRange.kind(), "table");
    assert_eq!(VirtualRelation::PgPreparedStatements.kind(), "view");
}