mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-19 14:11:58 +00:00
58 lines
1.3 KiB
Bash
Executable File
58 lines
1.3 KiB
Bash
Executable File
#!/usr/bin/env bash
|
|
|
|
set -e
|
|
|
|
CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
|
|
# shellcheck source=../shell_config.sh
|
|
. "$CURDIR"/../shell_config.sh
|
|
|
|
$CLICKHOUSE_CLIENT --multiquery <<EOF
|
|
DROP TABLE IF EXISTS src;
|
|
DROP TABLE IF EXISTS mv;
|
|
|
|
CREATE TABLE src (v UInt64) ENGINE = Null;
|
|
CREATE MATERIALIZED VIEW mv (v UInt8) Engine = MergeTree() ORDER BY v AS SELECT v FROM src;
|
|
EOF
|
|
|
|
# Test that ALTER doesn't cause data loss or duplication.
|
|
#
|
|
# Idea for future:
|
|
#
|
|
# null
|
|
# / \
|
|
# mv1 mv2
|
|
# \ /
|
|
# \ /
|
|
# mv sink
|
|
#
|
|
# Insert N times into null while altering sink query and switching it from mv1 to mv2.
|
|
|
|
function alter_thread()
|
|
{
|
|
trap 'exit' INT
|
|
|
|
ALTERS[0]="ALTER TABLE mv MODIFY QUERY SELECT v FROM src;"
|
|
ALTERS[1]="ALTER TABLE mv MODIFY QUERY SELECT v * 2 as v FROM src;"
|
|
|
|
while true; do
|
|
$CLICKHOUSE_CLIENT --allow_experimental_alter_materialized_view_structure=1 -q "${ALTERS[$RANDOM % 2]}"
|
|
sleep "$(echo 0.$RANDOM)";
|
|
done
|
|
}
|
|
|
|
export -f alter_thread;
|
|
timeout 10 bash -c alter_thread &
|
|
|
|
for _ in {1..100}; do
|
|
# Retry (hopefully retriable (deadlock avoided)) errors.
|
|
while true; do
|
|
$CLICKHOUSE_CLIENT -q "INSERT INTO src VALUES (1);" 2>/dev/null && break
|
|
done
|
|
done
|
|
|
|
$CLICKHOUSE_CLIENT -q "SELECT count() FROM mv;"
|
|
wait
|
|
|
|
$CLICKHOUSE_CLIENT -q "DROP VIEW mv"
|
|
$CLICKHOUSE_CLIENT -q "DROP TABLE src"
|