added test

dbms/tests/queries/0_stateless/00612_http_max_query_size.reference

@@ -0,0 +1,9 @@
+-
+Max query size exceeded
+1
+2
+3
+4
+5
+Max query size exceeded
+-

dbms/tests/queries/0_stateless/00612_http_max_query_size.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+
+CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
+. $CURDIR/../shell_config.sh
+
+echo 'select 1' | ${CLICKHOUSE_CURL} -sSg ${CLICKHOUSE_URL}/?max_query_size=8 -d @- 2>&1 | grep -o "Max query size exceeded"
+echo -
+echo 'select 1' | ${CLICKHOUSE_CURL} -sSg ${CLICKHOUSE_URL}/?max_query_size=7 -d @- 2>&1 | grep -o "Max query size exceeded"
+
+echo 'drop table if exists test.tab' | ${CLICKHOUSE_CURL} -sSg ${CLICKHOUSE_URL} -d @-
+echo 'create table test.tab (key UInt64, val UInt64) engine = MergeTree order by key' | ${CLICKHOUSE_CURL} -sSg ${CLICKHOUSE_URL} -d @-
+echo 'into test.tab values (1, 1), (2, 2), (3, 3), (4, 4), (5, 5)' | ${CLICKHOUSE_CURL} -sSg "${CLICKHOUSE_URL}/?max_query_size=30&query=insert" -d @-
+echo 'select val from test.tab order by val' | ${CLICKHOUSE_CURL} -sSg ${CLICKHOUSE_URL} -d @-
+echo 'drop table test.tab' | ${CLICKHOUSE_CURL} -sSg ${CLICKHOUSE_URL} -d @-
+
+echo "
+import requests
+import os
+
+url = os.environ['CLICKHOUSE_URL']
+if not url.startswith('http'):
+    url = 'http://' + url
+q = 'select sum(number) from (select * from system.numbers limit 10000000) where number = 0'
+
+def gen_data(q):
+    yield q
+    yield ''.join([' '] * (1024 - len(q)))
+
+    pattern = ''' or toString(number) = '{}'\n'''
+
+    for i in range(1, 4 * 1024):
+        yield pattern.format(str(i).zfill(1024 - len(pattern) + 2))
+
+s = requests.Session()
+resp = s.post(url + '/?max_query_size={}'.format(1 << 21), timeout=1, data=gen_data(q), stream=True,
+              headers = {'Connection': 'close'})
+
+for line in resp.iter_lines():
+    print line
+" | python | grep -o "Max query size exceeded"
+echo -
+