无法解析 DateTime 类型的表达式

Question

如有错误请在评论中指正

我正在尝试将测试数据插入 clickhouse。出于测试目的，我使用 datetime.now（100% 正确的日期时间）

在我的代码的最后一行我有一个错误：

clickhouse_driver.errors.ServerException: Code: 62.
DB::Exception: Cannot parse expression of type DateTime here: 2021-11-01 00:19:12.933220, 2021-11-01 00:19:12.933237, 1,2,3,4,5, "TYPE_K", "BTCUSDT");
. Stack trace:

我该如何解决？

from clickhouse_driver import Client

import os
from datetime import datetime

client = Client.from_url(f'clickhouse://default:{os.getenv("CLICK_PASSWORD")}@localhost:9000/crypto_exchange')
print(client.execute('SHOW TABLES'))

# field names from binance API
client.execute('''
CREATE TABLE IF NOT EXISTS historical_data_binance
(
    dateTime DateTime,
    closeTime DateTime,
    open Float64,
    high Float64,
    low Float64,
    close Float64,
    volume Float64,
    kline_type String,
    ticker String
) ENGINE = Memory
''')

client.execute(f'''
INSERT INTO crypto_exchange.historical_data_binance (*) VALUES
({datetime.now()}, {datetime.now()}, 1,2,3,4,5, "TYPE_K", "BTCUSDT");
''')

Answer 1

我的解决方案

def prepare_table():
    client = clickhouse_driver.Client.from_url(f'clickhouse://default:{os.getenv("CLICK_PASSWORD")}@localhost:9000/crypto_exchange')
    
    # field names from binance API
    client.execute('''
CREATE TABLE IF NOT EXISTS historical_data_binance
(
    dateTime DateTime,
    closeTime Int64,
    open Float64,
    high Float64,
    low Float64,
    close Float64,
    volume Float64,
    kline_type String,
    ticker String
) ENGINE = Memory
''')
    return client



def insert_data(client, insert_data, db_name="crypto_exchange", table_name="historical_data_binance"):
    """
    insert_data = {
        "dateTime": dateTime, 
        "closeTime": closeTime, 
        "open": open,
        "high": hign,
        "low": low,
        "close": close,
        "volume": volume,
        "kline_type": kline_type,
        "ticker": ticker
    }
    """
    columns = ', '.join(insert_data.keys())
    query = 'insert into {}.{} ({}) values'.format(db_name, table_name, columns)
    
    data = []
    data.append(insert_data)
    client.execute(query, data)

无法解析 DateTime 类型的表达式

Cannot parse expression of type DateTime

python

database

clickhouse