risingwave_frontend/catalog/system_catalog/information_schema/
tables.rs

1// Copyright 2025 RisingWave Labs
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use risingwave_common::types::Fields;
16use risingwave_frontend_macro::system_catalog;
17
18/// The view tables contains all tables and views defined in the current database. Only those tables
19/// and views are shown that the current user has access to (by way of being the owner or having
20/// some privilege).
21/// Ref: [`https://www.postgresql.org/docs/current/infoschema-tables.html`]
22///
23/// In RisingWave, `tables` contains all relations.
24#[system_catalog(
25    view,
26    "information_schema.tables",
27    "SELECT CURRENT_DATABASE() AS table_catalog,
28            s.name AS table_schema,
29            r.name AS table_name,
30            CASE r.relation_type
31                WHEN 'materialized view' THEN 'MATERIALIZED VIEW'
32                WHEN 'table' THEN 'BASE TABLE'
33                WHEN 'system table' THEN 'SYSTEM TABLE'
34                WHEN 'view' THEN 'VIEW'
35            ELSE UPPER(r.relation_type)
36            END AS table_type,
37            CASE
38            WHEN r.relation_type = 'table'
39            THEN 'YES'
40            ELSE 'NO'
41            END AS is_insertable_into
42        FROM rw_catalog.rw_relations r
43        JOIN rw_catalog.rw_schemas s ON r.schema_id = s.id
44        ORDER BY table_schema, table_name"
45)]
46#[derive(Fields)]
47struct Table {
48    table_catalog: String,
49    table_schema: String,
50    table_name: String,
51    table_type: String,
52    is_insertable_into: String,
53}
risingwave_frontend/catalog/system_catalog/information_schema/tables.rs

risingwave_frontend/catalog/system_catalog/information_schema/
tables.rs
