mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-20 16:50:48 +00:00
64 lines
1.7 KiB
Python
Executable File
64 lines
1.7 KiB
Python
Executable File
#!/usr/bin/env python
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import subprocess
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import threading
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import Queue as queue
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import os
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import sys
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CLICKHOUSE_CLIENT = os.environ.get('CLICKHOUSE_CLIENT')
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CLICKHOUSE_CURL = os.environ.get('CLICKHOUSE_CURL')
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CLICKHOUSE_URL = os.environ.get('CLICKHOUSE_URL')
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def send_query(query):
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cmd = list(CLICKHOUSE_CLIENT.split())
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cmd += ['--query', query]
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# print(cmd)
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return subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT).stdout
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def send_http_query(query):
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cmd = list(CLICKHOUSE_CURL.split()) # list(['curl', '-sSN', '--max-time', '10'])
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cmd += ['-sSN', CLICKHOUSE_URL, '-d', query]
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return subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT).stdout
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def read_lines_and_push_to_queue(pipe, queue):
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for line in iter(pipe.readline, ''):
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line = line.strip()
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print(line)
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sys.stdout.flush()
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queue.put(line)
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queue.put(None)
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def test():
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send_query('DROP TABLE IF EXISTS test.lv').read()
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send_query('DROP TABLE IF EXISTS test.mt').read()
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send_query('CREATE TABLE test.mt (a Int32) Engine=MergeTree order by tuple()').read()
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send_query('CREATE LIVE VIEW test.lv AS SELECT sum(a) FROM test.mt').read()
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q = queue.Queue()
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pipe = send_http_query('WATCH test.lv')
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thread = threading.Thread(target=read_lines_and_push_to_queue, args=(pipe, q))
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thread.start()
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line = q.get()
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print(line)
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assert (line == '0\t1')
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send_query('INSERT INTO test.mt VALUES (1),(2),(3)').read()
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line = q.get()
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print(line)
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assert (line == '6\t2')
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send_query('DROP TABLE if exists test.lv').read()
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send_query('DROP TABLE if exists test.lv').read()
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thread.join()
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test()
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