risingwave_meta::controller::utils

Function construct_obj_dependency_query

source
pub fn construct_obj_dependency_query(obj_id: ObjectId) -> WithQuery
Expand description

This function will construct a query using recursive cte to find all objects[(id, obj_type)] that are used by the given object.

ยงExamples

use risingwave_meta::controller::utils::construct_obj_dependency_query;
use sea_orm::sea_query::*;
use sea_orm::*;

let query = construct_obj_dependency_query(1);

assert_eq!(
    query.to_string(MysqlQueryBuilder),
    r#"WITH RECURSIVE `used_by_object_ids` (`used_by`) AS (SELECT `used_by` FROM `object_dependency` WHERE `object_dependency`.`oid` = 1 UNION ALL (SELECT `object_dependency`.`used_by` FROM `object_dependency` INNER JOIN `used_by_object_ids` ON `used_by_object_ids`.`used_by` = `oid`)) SELECT DISTINCT `oid`, `obj_type`, `schema_id`, `database_id` FROM `used_by_object_ids` INNER JOIN `object` ON `used_by_object_ids`.`used_by` = `oid` ORDER BY `oid` DESC"#
);
assert_eq!(
    query.to_string(PostgresQueryBuilder),
    r#"WITH RECURSIVE "used_by_object_ids" ("used_by") AS (SELECT "used_by" FROM "object_dependency" WHERE "object_dependency"."oid" = 1 UNION ALL (SELECT "object_dependency"."used_by" FROM "object_dependency" INNER JOIN "used_by_object_ids" ON "used_by_object_ids"."used_by" = "oid")) SELECT DISTINCT "oid", "obj_type", "schema_id", "database_id" FROM "used_by_object_ids" INNER JOIN "object" ON "used_by_object_ids"."used_by" = "oid" ORDER BY "oid" DESC"#
);
assert_eq!(
    query.to_string(SqliteQueryBuilder),
    r#"WITH RECURSIVE "used_by_object_ids" ("used_by") AS (SELECT "used_by" FROM "object_dependency" WHERE "object_dependency"."oid" = 1 UNION ALL SELECT "object_dependency"."used_by" FROM "object_dependency" INNER JOIN "used_by_object_ids" ON "used_by_object_ids"."used_by" = "oid") SELECT DISTINCT "oid", "obj_type", "schema_id", "database_id" FROM "used_by_object_ids" INNER JOIN "object" ON "used_by_object_ids"."used_by" = "oid" ORDER BY "oid" DESC"#
);