查看greemplum资源队列状态SELECT * FROM gp_toolkit.gp_resqueue_status;

查看greemplum资源队列锁SELECT * FROM gp_toolkit.gp_locks_on_resqueue WHERE lorwaiting='true';

查看greemplum资源队列优先级select *  from gp_toolkit.gp_resq_priority_statement;

查看greemplum所有连接 类似mysql SHOW PROCESSLISTselect * from pg_stat_activity; -- 所有状态的连接

greemplum磁盘使用，通过SQL查看Greenplum中用了多少空间select datname,pg_size_pretty(pg_database_size(datname)) from pg_database;

查看greemplum节点状态select * from gp_segment_configuration ttselect * from gp_segment_configuration tt where tt.status='d'; -- 状态为down

节点故障等历史信息select * from gp_configuration_history tt order by 1 desc ;

数据倾斜SELECT    t1.gp_segment_id,    t1.count_tatol,    round(t1.count_tatol-(AVG(t1.count_tatol)  over()) ,0)FROM    (        SELECT            gp_segment_id,            COUNT (*) count_tatol        FROM             -- 要查的表        GROUP BY            gp_segment_id    ) t1order by 3

greemplum表或索引大小 (占用空间)select pg_size_pretty(pg_relation_size('gp_test'));

greemplum表和索引大小(占用空间)select pg_size_pretty(pg_total_relation_size('gp_test'));

greemplum查看指定数据库大小(占用空间)select pg_size_pretty(pg_database_size('postgres'));

greemplum所有数据库大小(占用空间)select datname,pg_size_pretty(pg_database_size(datname)) from pg_database;

查看greemplum数据分布情况select gp_segment_id,count(*) from gp_test group by gp_segment_id order by 1;

查看greemplum数据表更新时间SELECT    *FROM    pg_stat_last_operation,    pg_classWHERE    objid = oidAND relname = 'base_common'; -- 表名

通过sql 获取greemplum表的预估数据量select    relname,    reltuples::int as totalfrom    pg_classwhere    relname = 'base_common'    and relnamespace = (select oid from pg_namespace where nspname = 'positions');

通过sql 获取greemplum获取分布键 SELECT string_agg(att.attname,',' order by attrnums) as distribution        FROM gp_distribution_policy a,pg_attribute att        WHERE a.localoid ='bi_data.schoolmate_relations'::regclass      and a.localoid = att.attrelid      and att.attnum = any(a.attrnums);

通过sql获取 greemplum指定表结构 SELECT            attname, typname     FROM           pg_attribute           INNER JOIN pg_class  ON pg_attribute.attrelid = pg_class.oid           INNER JOIN pg_type   ON pg_attribute.atttypid = pg_type.oid           INNER JOIN pg_namespace on pg_class.relnamespace=pg_namespace.oid  --     WHERE           pg_attribute.attnum > 0       AND attisdropped <> 't'       AND pg_namespace.nspname='resumes'       AND pg_class.relname= 'base_common'--     and pg_class.relname ~~* any(array['%some%', '%someelse']));order by  pg_attribute.attnum