From d252c59513db55439ee912690427e1a2f6041ff6 Mon Sep 17 00:00:00 2001
From: Alexander Kazakov <Akazz@users.noreply.github.com>
Date: Sun, 12 Apr 2020 20:04:52 +0300
Subject: [PATCH] Added a test that produces segfault in StorageSystemTables

---
 ...ecreate_reattach_and_show_tables.reference |   1 +
 ...rrent_recreate_reattach_and_show_tables.sh | 109 ++++++++++++++++++
 2 files changed, 110 insertions(+)
 create mode 100755 tests/queries/0_stateless/01014_lazy_database_concurrent_recreate_reattach_and_show_tables.reference
 create mode 100755 tests/queries/0_stateless/01014_lazy_database_concurrent_recreate_reattach_and_show_tables.sh

diff --git a/tests/queries/0_stateless/01014_lazy_database_concurrent_recreate_reattach_and_show_tables.reference b/tests/queries/0_stateless/01014_lazy_database_concurrent_recreate_reattach_and_show_tables.reference
new file mode 100755
index 00000000000..678f9a34e6f
--- /dev/null
+++ b/tests/queries/0_stateless/01014_lazy_database_concurrent_recreate_reattach_and_show_tables.reference
@@ -0,0 +1 @@
+Test OK
diff --git a/tests/queries/0_stateless/01014_lazy_database_concurrent_recreate_reattach_and_show_tables.sh b/tests/queries/0_stateless/01014_lazy_database_concurrent_recreate_reattach_and_show_tables.sh
new file mode 100755
index 00000000000..8bf21d3cb02
--- /dev/null
+++ b/tests/queries/0_stateless/01014_lazy_database_concurrent_recreate_reattach_and_show_tables.sh
@@ -0,0 +1,109 @@
+#!/usr/bin/env bash
+
+CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+. $CURDIR/../shell_config.sh
+
+export CURR_DATABASE="test_lazy_01014_concurrent_${CLICKHOUSE_DATABASE}"
+
+
+function recreate_lazy_func1()
+{
+    $CLICKHOUSE_CLIENT -q "
+        CREATE TABLE $CURR_DATABASE.log (a UInt64, b UInt64) ENGINE = Log;
+    ";
+
+    while true; do
+        $CLICKHOUSE_CLIENT -q "
+            DETACH TABLE $CURR_DATABASE.log;
+        ";
+
+        $CLICKHOUSE_CLIENT -q "
+            ATTACH TABLE $CURR_DATABASE.log;
+        ";
+        done
+}
+
+function recreate_lazy_func2()
+{
+    while true; do
+        $CLICKHOUSE_CLIENT -q "
+            CREATE TABLE $CURR_DATABASE.tlog (a UInt64, b UInt64) ENGINE = TinyLog;
+        ";
+
+        $CLICKHOUSE_CLIENT -q "
+            DROP TABLE $CURR_DATABASE.tlog;
+        ";
+        done
+}
+
+function recreate_lazy_func3()
+{
+    $CLICKHOUSE_CLIENT -q "
+        CREATE TABLE $CURR_DATABASE.slog (a UInt64, b UInt64) ENGINE = StripeLog;
+    ";
+
+    while true; do
+        $CLICKHOUSE_CLIENT -q "
+            ATTACH TABLE $CURR_DATABASE.slog;
+        ";
+
+        $CLICKHOUSE_CLIENT -q "
+            DETACH TABLE $CURR_DATABASE.slog;
+        ";
+        done
+}
+
+function recreate_lazy_func4()
+{
+    while true; do
+        $CLICKHOUSE_CLIENT -q "
+            CREATE TABLE $CURR_DATABASE.tlog2 (a UInt64, b UInt64) ENGINE = TinyLog;
+        ";
+
+        $CLICKHOUSE_CLIENT -q "
+            DROP TABLE $CURR_DATABASE.tlog2;
+        ";
+        done
+}
+
+function show_tables_func()
+{
+    while true; do
+        $CLICKHOUSE_CLIENT -q "SELECT * FROM system.tables WHERE database = '$CURR_DATABASE' FORMAT Null";
+        done
+}
+
+
+export -f recreate_lazy_func1;
+export -f recreate_lazy_func2;
+export -f recreate_lazy_func3;
+export -f recreate_lazy_func4;
+export -f show_tables_func;
+
+
+${CLICKHOUSE_CLIENT} -n -q "
+    DROP DATABASE IF EXISTS $CURR_DATABASE;
+    CREATE DATABASE $CURR_DATABASE ENGINE = Lazy(1);
+"
+
+
+TIMEOUT=30
+
+timeout $TIMEOUT bash -c recreate_lazy_func1 2> /dev/null &
+timeout $TIMEOUT bash -c recreate_lazy_func2 2> /dev/null &
+timeout $TIMEOUT bash -c recreate_lazy_func3 2> /dev/null &
+timeout $TIMEOUT bash -c recreate_lazy_func4 2> /dev/null &
+timeout $TIMEOUT bash -c show_tables_func 2> /dev/null &
+
+wait
+sleep 1
+
+${CLICKHOUSE_CLIENT} -n -q "
+    DROP TABLE IF EXISTS $CURR_DATABASE.log;
+    DROP TABLE IF EXISTS $CURR_DATABASE.slog;
+    DROP TABLE IF EXISTS $CURR_DATABASE.tlog;
+    DROP TABLE IF EXISTS $CURR_DATABASE.tlog2;
+"
+#    DROP DATABASE $CURR_DATABASE; -- This fails for some reason
+
+echo "Test OK"