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上级内存上下文、共享内存总大小等。 另外,在数据库中,GUC参数“memory_tracking_mode”用来设置内存信息统计的模式,共支持四种模式: none,不启动内存统计功能。 normal,仅做内存实时统计,不生成文件。 executor,生成统计文件,包含执行层使用过的所有已分配内存的上下文信息。
public.lineitem的时间减少了1.2s,得益于有84个CU被过滤掉了。 优化建议 选取partial cluster key列。 列存表支持创建partial cluster key的类型character varying(n), varchar(n), character(n)
上级内存上下文、共享内存总大小等。 另外,在数据库中,GUC参数“memory_tracking_mode”用来设置内存信息统计的模式,共支持四种模式: none,不启动内存统计功能。 normal,仅做内存实时统计,不生成文件。 executor,生成统计文件,包含执行层使用过的所有已分配内存的上下文信息。
public.lineitem的时间减少了1.2s,得益于有84个CU被过滤掉了。 优化建议 选取partial cluster key列。 列存表支持创建partial cluster key的类型character varying(n), varchar(n), character(n)
"TARGET_TABLE_V" ; \if ${ERROR} != 'false' \q 12 \endif ; TOP子句 DSC支持迁移使用动态参数的TOP语句。Teradata的TOP子句在GaussDB(DWS)中迁移为LIMIT。 对于包含WITH TIES的TOP语句,需要指定ORDER
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak
and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak