iridium_core 0.1.12

SQL Server-compatible Rust engine core for Iridium SQL
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
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245

use super::super::virtual_table_def;
use super::super::VirtualTable;
use crate::catalog::Catalog;
use crate::executor::context::ExecutionContext;
use crate::storage::StoredRow;
use crate::types::{DataType, Value};

/// Stub for sys.availability_replicas (always returns empty).
pub(crate) struct SysAvailabilityReplicas;

impl VirtualTable for SysAvailabilityReplicas {
    fn definition(&self) -> crate::catalog::TableDef {
        virtual_table_def(
            "availability_replicas",
            vec![
                ("replica_id", DataType::UniqueIdentifier, true),
                ("group_id", DataType::UniqueIdentifier, true),
                (
                    "replica_server_name",
                    DataType::NVarChar { max_len: 256 },
                    true,
                ),
            ],
        )
    }

    fn rows(&self, _catalog: &dyn Catalog, _ctx: &ExecutionContext) -> Vec<StoredRow> {
        vec![]
    }
}

/// Stub for sys.availability_groups (always returns empty).
pub(crate) struct SysAvailabilityGroups;

impl VirtualTable for SysAvailabilityGroups {
    fn definition(&self) -> crate::catalog::TableDef {
        virtual_table_def(
            "availability_groups",
            vec![
                ("group_id", DataType::UniqueIdentifier, true),
                ("name", DataType::NVarChar { max_len: 256 }, true),
            ],
        )
    }

    fn rows(&self, _catalog: &dyn Catalog, _ctx: &ExecutionContext) -> Vec<StoredRow> {
        vec![]
    }
}

/// Stub for sys.dm_hadr_database_replica_states (always returns empty).
pub(crate) struct SysDmHadrDatabaseReplicaStates;

impl VirtualTable for SysDmHadrDatabaseReplicaStates {
    fn definition(&self) -> crate::catalog::TableDef {
        virtual_table_def(
            "dm_hadr_database_replica_states",
            vec![
                ("group_database_id", DataType::UniqueIdentifier, true),
                ("synchronization_state", DataType::TinyInt, true),
                ("is_local", DataType::Bit, true),
                ("group_id", DataType::UniqueIdentifier, true),
                ("database_id", DataType::Int, true),
            ],
        )
    }

    fn rows(&self, _catalog: &dyn Catalog, _ctx: &ExecutionContext) -> Vec<StoredRow> {
        vec![]
    }
}

/// Stub for sys.master_files — returns one data file per database.
pub(crate) struct SysMasterFiles;

impl VirtualTable for SysMasterFiles {
    fn definition(&self) -> crate::catalog::TableDef {
        virtual_table_def(
            "master_files",
            vec![
                ("database_id", DataType::Int, false),
                ("file_id", DataType::Int, false),
                ("type", DataType::TinyInt, false),
                ("type_desc", DataType::NVarChar { max_len: 60 }, false),
                ("name", DataType::NVarChar { max_len: 128 }, false),
                ("physical_name", DataType::NVarChar { max_len: 260 }, false),
                ("state", DataType::TinyInt, false),
                ("state_desc", DataType::NVarChar { max_len: 60 }, false),
                ("size", DataType::Int, false),
                ("data_space_id", DataType::Int, false),
            ],
        )
    }

    fn rows(&self, _catalog: &dyn Catalog, _ctx: &ExecutionContext) -> Vec<StoredRow> {
        DATABASE_IDS
            .iter()
            .map(|&db_id| StoredRow {
                values: vec![
                    Value::Int(db_id),
                    Value::Int(1),
                    Value::TinyInt(0), // ROWS
                    Value::NVarChar("ROWS".to_string()),
                    Value::NVarChar(format!("db_{}", db_id)),
                    Value::NVarChar(format!("C:\\data\\db_{}.mdf", db_id)),
                    Value::TinyInt(0), // ONLINE
                    Value::NVarChar("ONLINE".to_string()),
                    Value::Int(1024),
                    Value::Int(1),
                ],
                deleted: false,
            })
            .collect()
    }
}

/// Stub for sys.database_mirroring — one row per database, all mirroring
/// columns NULL (mirroring not configured).
pub(crate) struct SysDatabaseMirroring;
pub(crate) struct SysDatabaseFiles;

/// Database IDs that match sys.databases (master=1, tempdb=2, model=3, msdb=4, iridium_sql=5).
const DATABASE_IDS: &[i32] = &[1, 2, 3, 4, 5];

impl VirtualTable for SysDatabaseMirroring {
    fn definition(&self) -> crate::catalog::TableDef {
        virtual_table_def(
            "database_mirroring",
            vec![
                ("database_id", DataType::Int, false),
                ("mirroring_guid", DataType::UniqueIdentifier, true),
                ("mirroring_state", DataType::TinyInt, true),
                ("mirroring_role", DataType::TinyInt, true),
                (
                    "mirroring_role_desc",
                    DataType::NVarChar { max_len: 60 },
                    true,
                ),
                (
                    "mirroring_state_desc",
                    DataType::NVarChar { max_len: 60 },
                    true,
                ),
                ("mirroring_safety_level", DataType::TinyInt, true),
                (
                    "mirroring_safety_level_desc",
                    DataType::NVarChar { max_len: 60 },
                    true,
                ),
                (
                    "mirroring_partner_name",
                    DataType::NVarChar { max_len: 128 },
                    true,
                ),
                (
                    "mirroring_partner_instance",
                    DataType::NVarChar { max_len: 128 },
                    true,
                ),
                (
                    "mirroring_witness_name",
                    DataType::NVarChar { max_len: 128 },
                    true,
                ),
                ("mirroring_witness_state", DataType::TinyInt, true),
                (
                    "mirroring_witness_state_desc",
                    DataType::NVarChar { max_len: 60 },
                    true,
                ),
                ("mirroring_failover_lsn", DataType::BigInt, true),
                ("mirroring_connection_timeout", DataType::Int, true),
                ("mirroring_redo_queue", DataType::Int, true),
                ("mirroring_end_of_log_lsn", DataType::BigInt, true),
                ("mirroring_replication_lsn", DataType::BigInt, true),
            ],
        )
    }

    fn rows(&self, _catalog: &dyn Catalog, _ctx: &ExecutionContext) -> Vec<StoredRow> {
        DATABASE_IDS
            .iter()
            .map(|&db_id| StoredRow {
                values: vec![
                    Value::Int(db_id),
                    Value::Null, // mirroring_guid
                    Value::Null, // mirroring_state
                    Value::Null, // mirroring_role
                    Value::Null, // mirroring_role_desc
                    Value::Null, // mirroring_state_desc
                    Value::Null, // mirroring_safety_level
                    Value::Null, // mirroring_safety_level_desc
                    Value::Null, // mirroring_partner_name
                    Value::Null, // mirroring_partner_instance
                    Value::Null, // mirroring_witness_name
                    Value::Null, // mirroring_witness_state
                    Value::Null, // mirroring_witness_state_desc
                    Value::Null, // mirroring_failover_lsn
                    Value::Null, // mirroring_connection_timeout
                    Value::Null, // mirroring_redo_queue
                    Value::Null, // mirroring_end_of_log_lsn
                    Value::Null, // mirroring_replication_lsn
                ],
                deleted: false,
            })
            .collect()
    }
}

impl VirtualTable for SysDatabaseFiles {
    fn definition(&self) -> crate::catalog::TableDef {
        virtual_table_def(
            "database_files",
            vec![
                ("file_id", DataType::Int, false),
                ("type", DataType::TinyInt, false),
                ("type_desc", DataType::NVarChar { max_len: 60 }, false),
                ("name", DataType::NVarChar { max_len: 128 }, false),
                ("physical_name", DataType::NVarChar { max_len: 260 }, false),
                ("state", DataType::TinyInt, false),
                ("state_desc", DataType::NVarChar { max_len: 60 }, false),
                ("size", DataType::Int, false),
                ("data_space_id", DataType::Int, false),
            ],
        )
    }

    fn rows(&self, _catalog: &dyn Catalog, _ctx: &ExecutionContext) -> Vec<StoredRow> {
        // Assume database_id 5 (iridium_sql) is the current database for this view.
        vec![StoredRow {
            values: vec![
                Value::Int(1),
                Value::TinyInt(0), // ROWS
                Value::NVarChar("ROWS".to_string()),
                Value::NVarChar("iridium_sql".to_string()),
                Value::NVarChar("C:\\data\\iridium_sql.mdf".to_string()),
                Value::TinyInt(0), // ONLINE
                Value::NVarChar("ONLINE".to_string()),
                Value::Int(1024),
                Value::Int(1),
            ],
            deleted: false,
        }]
    }
}