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coordinator, the maximum number of coordinators %d specified by 'max_coordinators' has been reached." SQLSTATE: 42601 错误原因：语法错误，创建的coordinator数
--restore-host-ip <restoreHostIp> --meta-destination <metaDestination> --media-destination <mediaDestination> [--config-file <configFile>] [--switchover-config-file
hword_numpart,"Hyphenated word part, letters and digits") (10,hword_part,"Hyphenated word part, all letters") (11,hword_asciipart,"Hyphenated word part
INTERVAL MySQL中使用interval表达式格式为INTERVAL N时间单位，DWS不支持，需要转换为INTERVAL 'N'时间单位。 输入示例 1 2 3 4 5 6 SELECT CURRENT_TIME() - INTERVAL 4 DAY; SELECT NOW()
安全环境。 数据库与外部网络隔离 GaussDB(DWS)在单独的虚拟私有云VPC网络中，各VPC之间相互隔离。数据库作为一个组件，按照防火墙安全区域的划分是属于内部用户接口网络区域内，即受信类区域，不涉及其他区域的划分。客户端和对外服务节点CN之间的通信（命令行工具、GUI T
select supp_nation, cust_nation, l_year, sum(volume) as revenue from ( select n1.n_name as supp_nation, n2.n_name as cust_nation, extract(year
Hyphenated word part, letters and digits 10 | hword_part | Hyphenated word part, all letters 11 | hword_asciipart | Hyphenated word
hword_numpart,"Hyphenated word part, letters and digits") (10,hword_part,"Hyphenated word part, all letters") (11,hword_asciipart,"Hyphenated word part
number(6) not null unique, prod_name national character varying(32) not null, prod_desc clob
若需要取消运行时间过长的查询，通过PG_TERMINATE_BACKEND函数，根据线程ID结束会话。 1 SELECT PG_TERMINATE_BACKEND(139834759993104); 显示类似如下信息，表示结束会话成功。 1 2 3 4 PG_TERMINATE_BACKEND ----------------------
BARRIER PREPARE message is expected to arrive at a Coordinator from another Coordinator" SQLSTATE: XX000 错误原因：系统内部错误。 解决办法：请联系技术支持工程师提供技术支持。 GAUSS-02237:
YEAR, P_BRAND; Q3.1 1 2 3 4 5 6 7 8 9 10 11 12 SELECT C_NATION, S_NATION, div(LO_ORDERDATE,10000) AS YEAR, SUM(LO_REVENUE) AS revenue
Hyphenated word part, letters and digits 10 | hword_part | Hyphenated word part, all letters 11 | hword_asciipart | Hyphenated word
GaussDB(DWS)不支持rename子句包含schema名，因此DSC工具只支持同schema下的rename。同schema下rename，转换结果去掉子句schema，跨schema的rename报错。 输入示例 1 2 3 4 ALTER TABLE `shce1`.`t1` rename
beta1 asciihword Hyphenated word, all ASCII up-to-date hword Hyphenated word, all letters lógico-matemática numhword Hyphenated word, letters and
若需要取消运行时间过长的查询，通过PG_TERMINATE_BACKEND函数，根据线程ID结束会话。 1 SELECT PG_TERMINATE_BACKEND(139834759993104); 显示类似如下信息，表示结束会话成功。 1 2 3 4 PG_TERMINATE_BACKEND ----------------------
SMALLINT SMALLINT TINYINT TINYINT类型做转换时，如果存在无符号类型(UNSIGNED)修饰则转换为TINYINT，否则转换为SMALLINT。 REAL类型做转换时，默认转换为DOUBLE PRECISION，如果配置文件(features-mysql
beta1 asciihword Hyphenated word, all ASCII up-to-date hword Hyphenated word, all letters lógico-matemática numhword Hyphenated word, letters and
-+--------------+---------------+-------------+-------------- coordinator2 | 2020-01-14 21:58:29.290894+08 | 0 | 12010 | 278 |
-+--------------+---------------+-------------+-------------- coordinator2 | 2020-01-14 21:58:29.290894+08 | 0 | 12010 | 278 |
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