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Coordinator executor start time: 0.181 ms Coordinator executor run time: 36683.738 ms Coordinator executor end time: 0.065 ms Planner runtime
lineitem, partsupp, nation where s_suppkey = l_suppkey and ps_suppkey = l_suppkey and ps_partkey = l_partkey and s_nationkey = n_nationkey
s_nationkey FROM supplier WHERE s_suppkey < 10000 GROUP BY s_nationkey having nation_total = ANY (SELECT /*+ material_sublink */ avg(s_acctbal
关闭： gs_guc reload -Z coordinator -Z datanode -N all -I all -c "ustore_attr=''" 打开： gs_guc reload -Z coordinator -Z datanode -N all -I all -c
1 2 FATAL: terminating connection due to administrator command FATAL: terminating connection due to administrator command 当使用gsql客户端调用pg_terminate_backend
1 2 FATAL: terminating connection due to administrator command FATAL: terminating connection due to administrator command gsql客户端使用PG_TERMINATE_BACKEND
1 2 FATAL: terminating connection due to administrator command FATAL: terminating connection due to administrator command 1. gsql客户端使用PG_TERMINATE_BACKEND
MessageText, sizeof(MessageText), &TextLength); if (SQL_SUCCEEDED(ret)) { printf("[SQLState:%s]:[%ldth error]:[NativeError
MessageText, sizeof(MessageText), &TextLength); if (SQL_SUCCEEDED(ret)) { printf("[SQLState:%s]:[%ldth error]:[NativeError
word part, letters and digits") (10,hword_part,"Hyphenated word part, all letters") (11,hword_asciipart,"Hyphenated word part, all ASCII")
word part, letters and digits") (10,hword_part,"Hyphenated word part, all letters") (11,hword_asciipart,"Hyphenated word part, all ASCII")
} parallel {parallel_num}; --data_destination 只能是一个表名称 --file_encoding 表示该二进制文件导出时指定的编码格式 --parallel_num 表示数据导入时的客户端数量，在集群资源较为充足时建议此值为8。
--TEXT格式的导入命令 \COPY {data_destination} FROM '/path/export.txt' ENCODING {file_encoding} PARALLEL {parallel_num}; 父主题： 典型场景
node definition coordinator1: (time=0.001 total_calls=1 loops=1) Plan Node id: 1 Track name: Coordinator serialize plan coordinator1
node definition coordinator1: (time=0.001 total_calls=1 loops=1) Plan Node id: 1 Track name: Coordinator serialize plan coordinator1
(140657876268816); pg_terminate_backend ---------------------- t (1 row) pg_terminate_session(pid int64, sessionid int64) 描述：线程池模式下，终止一个后台
pg_terminate_backend(pid int) 描述：终止一个后台线程。 返回值类型：Boolean 备注：如果成功，函数返回true，否则返回false。
(140657876268816); pg_terminate_backend ---------------------- t (1 row) pg_terminate_session(pid int64, sessionid int64) 描述：线程池模式下，终止一个后台
示例 消除Partition Iterator算子在GUC参数partition_iterator_elimination开启后才能生效，示例如下： gaussdb=# CREATE TABLE test_range_pt (a INT, b INT, c INT) PARTITION
destination_owner character varying(261) 暂不支持，值为NULL。 destination character varying(261) 定时任务目标名称。
