uqa_sql/ast/
type_lifecycle.rs

1//
2// Unified Query Algebra
3//
4// Copyright (c) 2023-2026 Cognica, Inc.
5//
6
7//! `ALTER TYPE | DOMAIN ... RENAME TO | SET SCHEMA | OWNER TO`.
8
9use serde::{Deserialize, Serialize};
10
11use super::RoleSpecification;
12
13/// The keyword that named the target. `DOMAIN` statements reject types that are not domains.
14#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
15pub enum TypeObjectKind {
16    Type,
17    Domain,
18}
19
20/// One `ALTER TYPE` or `ALTER DOMAIN` lifecycle change of a user-defined type and its generated array type.
21#[derive(Debug, Clone, Serialize, Deserialize)]
22pub struct AlterTypeObject {
23    pub kind: TypeObjectKind,
24    /// Rendered, possibly qualified type name as written.
25    pub name: String,
26    pub action: AlterTypeObjectAction,
27}
28
29#[derive(Debug, Clone, Serialize, Deserialize)]
30pub enum AlterTypeObjectAction {
31    /// The new unqualified name.
32    RenameTo(String),
33    /// The destination schema.
34    SetSchema(String),
35    OwnerTo(RoleSpecification),
36    /// Rename an attribute without changing its type or attribute number.
37    RenameAttribute {
38        from: String,
39        to: String,
40    },
41    /// Append attributes to a standalone composite relation in written order.
42    AddAttributes(Vec<super::CompositeAttributeAddition>),
43    /// `PostgreSQL` prepares types against the original descriptor, then executes DROP, TYPE and ADD groups in order.
44    AlterAttributes {
45        removals: Vec<super::CompositeAttributeRemoval>,
46        #[serde(default)]
47        type_changes: Vec<super::CompositeAttributeDefinition>,
48        additions: Vec<super::CompositeAttributeAddition>,
49    },
50}
uqa_sql/ast/type_lifecycle.rs

uqa_sql/ast/
type_lifecycle.rs
