uqa-engine 0.3.5

Engine: schema-aware table store, catalog restore, transactions
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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135

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

//! Lend real table/column and sequence identity guards to native dependency consumers.
use crate::{Engine, TableState};
use std::sync::Arc;
use uqa_execution::{
    catalog::foreign::reads::ForeignTablesRead,
    schema::sequences::dependency_lifecycle::{
        SequenceChecksRead, SequenceColumnsRead, SequenceDependencyCatalog,
        SequenceDependencyContext, SequenceTableMetadata,
    },
};
use uqa_sql::schema::sequences::{
    dependencies::analysis::{SequenceExpressionCatalog, SequenceExpressionObjectIdsRead},
    dependents::SequenceSchemaDependent,
};
use uqa_storage::{SequenceOwner, StorageBackendResult};
impl SequenceTableMetadata for TableState {
    fn object_id(&self) -> [u8; 16] {
        self.object_id()
    }
    fn columns(&self) -> SequenceColumnsRead<'_> {
        Box::new(self.columns.read())
    }
    fn table_checks(&self) -> SequenceChecksRead<'_> {
        Box::new(self.table_checks.read())
    }
}
impl SequenceDependencyCatalog for Engine {
    fn refresh_tables(&self) -> StorageBackendResult<()> {
        self.synchronize_table_catalog()
    }
    fn refresh_catalog(&self) -> StorageBackendResult<()> {
        self.synchronize_catalog_registries()
    }
    fn table_entries(&self) -> Vec<(String, Arc<dyn SequenceTableMetadata>)> {
        Engine::table_entries(self)
            .into_iter()
            .map(|(name, state)| (name, state as Arc<dyn SequenceTableMetadata>))
            .collect()
    }
    fn resolve_table_name(&self, name: &str) -> StorageBackendResult<Option<String>> {
        self.try_resolve_table_name(name)
    }
    fn table(&self, name: &str) -> StorageBackendResult<Option<Arc<dyn SequenceTableMetadata>>> {
        self.try_table(name)
            .map(|state| state.map(|state| state as Arc<dyn SequenceTableMetadata>))
    }
    fn foreign_tables(&self) -> ForeignTablesRead<'_> {
        Box::new(self.durable.foreign_tables.read())
    }
}
impl SequenceExpressionCatalog for Engine {
    fn object_ids(&self) -> SequenceExpressionObjectIdsRead<'_> {
        Box::new(self.durable.sequence_object_ids.read())
    }
}
impl Engine {
    pub(crate) fn sequence_dependency_context(&self) -> SequenceDependencyContext<'_> {
        SequenceDependencyContext {
            catalog: self,
            sequences: self,
            expressions: self,
            views: self.view_dependency_context(),
            events: self.event_lookup_context(),
            foreign: self.foreign_definition_context(),
            tables: self,
            changes: self,
            constraints: self.constraint_alter_context(),
            schema: self.schema_publication_context(),
            columns: self.column_drop_publication_context(),
        }
    }
    pub(crate) fn sequence_names_owned_by_tables(
        &self,
        table_object_ids: &std::collections::BTreeSet<[u8; 16]>,
    ) -> StorageBackendResult<std::collections::BTreeSet<String>> {
        uqa_execution::catalog::sequence_introspection::ownership::sequence_names_owned_by_tables(
            self,
            table_object_ids,
        )
    }
    pub(crate) fn sequence_names_owned_by_column(
        &self,
        table_object_id: [u8; 16],
        column_object_id: [u8; 16],
    ) -> StorageBackendResult<std::collections::BTreeSet<String>> {
        uqa_execution::catalog::sequence_introspection::ownership::sequence_names_owned_by_column(
            self,
            table_object_id,
            column_object_id,
        )
    }
    pub(crate) fn sequence_schema_expression_dependents(
        &self,
        sequence: &str,
    ) -> StorageBackendResult<Vec<SequenceSchemaDependent>> {
        self.sequence_dependency_context()
            .sequence_schema_expression_dependents(sequence)
    }
    pub(crate) fn resolve_stored_sequence_references_in_expr(
        &self,
        expression: &mut uqa_sql::ast::Expr,
    ) -> StorageBackendResult<()> {
        self.sequence_dependency_context()
            .resolve_stored_sequence_references_in_expr(expression)
    }
    pub(crate) fn sequence_external_dependents_for_owner_drop(
        &self,
        sequence: &str,
        owner_drop_targets: &std::collections::BTreeSet<String>,
    ) -> StorageBackendResult<Vec<String>> {
        self.sequence_dependency_context()
            .sequence_external_dependents_for_owner_drop(sequence, owner_drop_targets)
    }
    pub(crate) fn owned_sequence_dependents_for_column(
        &self,
        table_name: &str,
        column_name: &str,
    ) -> StorageBackendResult<Vec<String>> {
        self.sequence_dependency_context()
            .owned_sequence_dependents_for_column(table_name, column_name)
    }
    pub(crate) fn sequence_owner_target(
        &self,
        owner: SequenceOwner,
    ) -> Option<(String, String, bool)> {
        self.sequence_dependency_context()
            .sequence_owner_target(owner)
    }
}