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统计信息函数 统计信息函数根据访问对象分为两种类型：针对某个数据库进行访问的函数，以数据库中每个表或索引的OID作为参数，标识需要报告的数据库；针对某个服务器进行访问的函数，以一个服务器进程号为参数，其范围从1到当前活跃服务器的数目。
生成的计划如下，server_ip使用了字典编码： 使用no dict可以禁用server_ip使用字典编码： 1 SELECT /*+ no dict (bitmaptbl_high (server_ip)) */ distinct(server_ip) FROM bitmaptbl_high
生成的计划如下，server_ip使用了字典编码： 使用no dict可以禁用server_ip使用字典编码： 1 SELECT /*+ no dict (bitmaptbl_high (server_ip)) */ distinct(server_ip) FROM bitmaptbl_high
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
- SERVER 通过external schema关联foreign server以达到访问外部数据的目的。 已存在的foreign server且type类型为lf、dli、obs或hdfs。 CATALOG Lakeformation中对应的要访问的catalog。
- SERVER 通过external schema关联foreign server以达到访问外部数据的目的。 已存在的foreign server且type类型为lf、dli、obs或hdfs。 CATALOG Lakeformation中对应的要访问的catalog。
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.environ["CLOUD_SDK_AK
