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Fixed inserting into Buffer engine

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by not throwing exception from DatabaseCatalog::tryGetTable() when database name is empty
This commit is contained in:
Vasily Nemkov 2023-07-22 00:15:05 +02:00
parent 52a26a6653
commit 5ec63c782c
3 changed files with 38 additions and 1 deletions
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3
src/Interpreters/DatabaseCatalog.cpp
View File

@ -344,7 +344,8 @@ DatabaseAndTable DatabaseCatalog::getTableImpl(
DatabasePtr database;
{
std::lock_guard lock{databases_mutex};
auto it = databases.find(table_id.getDatabaseName());
// hasDatabase() to avod getDatabaseName() throwing exception if database is empty.
auto it = table_id.hasDatabase() ? databases.find(table_id.getDatabaseName()) : databases.end();
if (databases.end() == it)
{
if (exception)

17
tests/queries/0_stateless/02814_currentDatabase_for_table_functions.reference Normal file
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@ -0,0 +1,17 @@
-- Based on https://github.com/ClickHouse/ClickHouse/issues/52436
-- Test that inserts performed via Buffer table engine land into destination table.
-- { echoOn }
DROP TABLE IF EXISTS null_table;
DROP TABLE IF EXISTS null_table_buffer;
DROP TABLE IF EXISTS null_mv;
DROP VIEW IF EXISTS number_view;
CREATE TABLE null_table (number UInt64) ENGINE = Null;
CREATE VIEW number_view as SELECT * FROM numbers(10) as tb;
CREATE MATERIALIZED VIEW null_mv Engine = Log AS SELECT * FROM null_table LEFT JOIN number_view as tb USING number;
CREATE TABLE null_table_buffer (number UInt64) ENGINE = Buffer(currentDatabase(), null_table, 1, 1, 1, 100, 200, 10000, 20000);
INSERT INTO null_table_buffer VALUES (1);
SELECT sleep(3) FORMAT Null;
-- Insert about should've landed into `null_mv`
SELECT count() FROM null_mv;
1

19
tests/queries/0_stateless/02814_currentDatabase_for_table_functions.sql Normal file
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@ -0,0 +1,19 @@
-- Based on https://github.com/ClickHouse/ClickHouse/issues/52436
-- Test that inserts performed via Buffer table engine land into destination table.
-- { echoOn }
DROP TABLE IF EXISTS null_table;
DROP TABLE IF EXISTS null_table_buffer;
DROP TABLE IF EXISTS null_mv;
DROP VIEW IF EXISTS number_view;
CREATE TABLE null_table (number UInt64) ENGINE = Null;
CREATE VIEW number_view as SELECT * FROM numbers(10) as tb;
CREATE MATERIALIZED VIEW null_mv Engine = Log AS SELECT * FROM null_table LEFT JOIN number_view as tb USING number;
CREATE TABLE null_table_buffer (number UInt64) ENGINE = Buffer(currentDatabase(), null_table, 1, 1, 1, 100, 200, 10000, 20000);
INSERT INTO null_table_buffer VALUES (1);
SELECT sleep(3) FORMAT Null;
-- Insert about should've landed into `null_mv`
SELECT count() FROM null_mv;