KSQL SELECT代码有效，但是CREATE TABLE`..` AS SELECT代码返回错误-io.confluent.ksql.util.KsqlStatementException：无法解析列

Question

我在KSQL中创建表或流时遇到问题。

我已经完成了官方示例中显示的所有内容，但我不明白为什么我的代码无法正常工作。来自https://docs.confluent.io/current/ksql/docs/tutorials/examples.html#joining的示例：

  CREATE TABLE pageviews_per_region_per_session AS
  SELECT regionid,
         windowStart(),
         windowEnd(),
         count(*)
  FROM pageviews_enriched
  WINDOW SESSION (60 SECONDS)
  GROUP BY regionid;

现在输入我的代码：

我尝试在命令舞会中运行select，效果很好：

SELECT count(*) as attempts_count, "computer", (WINDOWSTART() / 1000) as row_time 
FROM LOG_FLATTENED 
WINDOW TUMBLING (SIZE 20 SECONDS)
WHERE "event_id" = 4625
GROUP BY "computer" 
HAVING count(*) > 2; 

但是当我尝试基于此选择创建表时（通过ksql命令行工具）：

CREATE TABLE `incorrect_logins` AS 
SELECT count(*) as attempts_count, "computer", (WINDOWSTART() / 1000) as row_time 
FROM LOG_FLATTENED 
WINDOW TUMBLING (SIZE 20 SECONDS)
WHERE "event_id" = 4625
GROUP BY "computer" 
HAVING count(*) > 2; 

我遇到错误-io.confluent.ksql.util.KsqlStatementException: Column COMPUTER cannot be resolved.，但是此列存在并且选择时不使用create table语句就可以正常工作。

我正在使用最新的稳定的KSQL映像（confluentinc/cp-ksql-server:5.3.1）

Answer 1