forked from huawei/openGauss-server
396 lines
11 KiB
PL/PgSQL
396 lines
11 KiB
PL/PgSQL
CREATE OR REPLACE FUNCTION tomarrow()
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RETURNS timestamptz
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AS $$
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BEGIN
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RETURN now() + interval '1 day';
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END;
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$$ LANGUAGE plpgsql;
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CREATE OR REPLACE FUNCTION remove_all_job()
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RETURNS void
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AS $$
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DECLARE
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sql text;
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job_id int;
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BEGIN
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sql := 'select job_id from pg_job;';
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FOR job_id IN EXECUTE(sql) LOOP
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sql := 'select dbms_job.remove('||job_id||')';
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EXECUTE (sql);
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END LOOP;
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RETURN;
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END;
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$$ LANGUAGE plpgsql;
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select remove_all_job();
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/*成功 : 时序开关打开
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1. 标准时序创建表方式*/
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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select reloptions from pg_class where relname ='cpu';
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select attname,attkvtype from pg_attribute where attrelid = (select oid from pg_class where relname = 'cpu') and attnum > 0 order by attnum;
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select interval,what from pg_job join pg_job_proc on pg_job.job_id = pg_job_proc.job_id where what like '%cpu%' order by pg_job.job_id;
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/*2. 标准时序修改表增加列方式*/
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ALTER TABLE CPU ADD COLUMN memory real TSFIELD;
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select attname,attkvtype from pg_attribute where attrelid = (select oid from pg_class where relname = 'cpu') and attnum > 0 order by attnum;
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/*3. 修改时序表删除列*/
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select attname,attkvtype from pg_attribute where attrelid = (select oid from pg_class where relname = 'cpu') and attnum > 0 order by attnum;
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ALTER TABLE CPU DROP COLUMN idle;
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DO $$ BEGIN PERFORM pg_sleep(3); END $$;
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/*4.修改时序表PERIOD, TTL*/
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ALTER TABLE CPU SET (PERIOD = '0.5 day');
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ALTER TABLE CPU SET (TTL = '1 week');
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DO $$ BEGIN PERFORM pg_sleep(5); END $$;
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/*5. 删除时序表*/
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DROP TABLE CPU;
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/*6. 不指定PERIOD， 默认PERIOD为1天。 不指定TTL，则不创建分区删除任务*/
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CREATE TABLE CPU2(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (orientation=TIMESERIES)
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distribute by hash(IP);
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DO $$ BEGIN PERFORM pg_sleep(3); END $$;
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select interval,what from pg_job join pg_job_proc on pg_job.job_id = pg_job_proc.job_id where what like '%cpu2%' order by pg_job.job_id;
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DROP TABLE CPU2;
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/*7. 除时间列外所有KVType指定为TSTAG或TSFIELD*/
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CREATE TABLE CPU3(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSFIELD,
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IP text TSFIELD,
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time timestamp TSTIME
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) with (orientation=TIMESERIES)
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distribute by hash(IP)
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PARTITION BY RANGE(time)
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(
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partition p1 values less than(now()),
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partition p2 values less than(tomarrow())
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);
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select reloptions from pg_class where relname = 'cpu3';
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DROP TABLE CPU3;
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/*9. 创建分区表并且指定了TTL或者PERIOD，但ORIENTATION非TIMESERIES*/
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CREATE TABLE CPU4(
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idle real,
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IO real,
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scope text,
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IP text,
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time timestamp
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) with (TTL='7 days', PERIOD = '1 day', orientation=COLUMN)
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distribute by hash(IP)
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PARTITION BY RANGE(time)
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(
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partition p1 values less than(now()),
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partition p2 values less than(tomarrow())
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);DO $$ BEGIN PERFORM pg_sleep(3); END $$;
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select interval,what from pg_job join pg_job_proc on pg_job.job_id = pg_job_proc.job_id where what like '%cpu4%' order by pg_job.job_id;
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DROP TABLE CPU4;
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/*9. 删除分区策略，删除表成功*/
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CREATE TABLE CPU5(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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DO $$ BEGIN PERFORM pg_sleep(3); END $$;
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select interval,what from pg_job join pg_job_proc on pg_job.job_id = pg_job_proc.job_id where what like '%cpu5%' order by pg_job.job_id;
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SELECT remove_create_partition_policy_v2('cpu5');
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select interval,what from pg_job join pg_job_proc on pg_job.job_id = pg_job_proc.job_id where what like '%cpu5%' order by pg_job.job_id;
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SELECT remove_drop_partition_policy_v2 ('cpu5');
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select interval,what from pg_job join pg_job_proc on pg_job.job_id = pg_job_proc.job_id where what like '%cpu5%' order by pg_job.job_id;
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DROP TABLE CPU5;
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/*10. 非时序表，无论是否包含分区策略，成功删除*/
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CREATE TABLE CPU6(
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idle real,
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IO real,
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scope text,
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IP text,
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time timestamp
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) with (TTL='7 days', PERIOD = '1 day', orientation=COLUMN)
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distribute by hash(IP)
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PARTITION BY RANGE(time)
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(
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partition p1 values less than(now()),
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partition p2 values less than(tomarrow())
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);
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DO $$ BEGIN PERFORM pg_sleep(5); END $$;
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select interval,what from pg_job join pg_job_proc on pg_job.job_id = pg_job_proc.job_id where what like '%cpu6%' order by pg_job.job_id;
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DROP TABLE CPU6;
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select interval,what from pg_job join pg_job_proc on pg_job.job_id = pg_job_proc.job_id where what like '%cpu6%' order by pg_job.job_id;
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/*11. 只有一個屬性 */
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CREATE TABLE CPU7(
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(time)
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PARTITION BY RANGE(time)
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(
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partition p1 values less than(now()),
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partition p2 values less than(tomarrow())
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);
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DO $$ BEGIN PERFORM pg_sleep(3); END $$;
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select interval,what from pg_job join pg_job_proc on pg_job.job_id = pg_job_proc.job_id where what like '%cpu7%' order by pg_job.job_id;
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DROP TABLE CPU7;
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/*失败 :*/
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/* 1.时序开关未打开 */
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/* 2.两个TSDDBTIME 定义 或者未定义TSTIME */
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME,
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timetz timestamptz TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTAG
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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/* 4. PERIOD间隔大于TTL */
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 month', orientation=TIMESERIES)
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distribute by hash(IP);
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/* 5.TTL超过一年 */
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='100 year 1 month', PERIOD = '1 month', orientation=TIMESERIES)
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distribute by hash(IP);
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/* 6.PERIOD小于1小时 */
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='1 year ', PERIOD = '59 min', orientation=TIMESERIES)
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distribute by hash(IP);
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/* 7.增加列 定义为 TSTIME或不指定kvtype */
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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DO $$ BEGIN PERFORM pg_sleep(3); END $$;
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ALTER TABLE CPU ADD COLUMN time2 timestamp TSTIME;
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ALTER TABLE CPU ADD COLUMN time2 timestamp;
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DROP TABLE CPU;
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/* 8. 时序表未定义或部分kvtype */
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real ,
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scope text ,
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IP text ,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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/* 9. 非时序表不指定period,period默认为1天*/
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CREATE TABLE CPU(
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idle real,
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IO real,
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scope text,
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IP text,
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time timestamp
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) with (TTL='1 hour', orientation=COLUMN)
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distribute by hash(IP)
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PARTITION BY RANGE(time)
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(
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partition p1 values less than(now()),
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partition p2 values less than(tomarrow())
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);
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/* 10. 时序表指定的partition非TSTIME类型 */
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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recordtime timestamp TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP)
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PARTITION BY RANGE(recordtime)
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(
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partition p1 values less than(now()),
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partition p2 values less than(tomarrow())
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);
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/* 11. 时序修改表ttl < period */
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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ALTER TABLE CPU SET (PERIOD = '2 week');
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ALTER TABLE CPU SET (TTL = '1 hour');
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DO $$ BEGIN PERFORM pg_sleep(3); END $$;
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DROP TABLE CPU;
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/* 12. 时序表暂不支持unlogged table限制 */
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CREATE UNLOGGED TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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/* 13. 不支持 [LOCAL/GLOBAL] + TEMP/TEMPORAY 限制 */
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CREATE TEMP TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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CREATE LOCAL TEMP TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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CREATE LOCAL TEMPORAY TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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CREATE GLOBAL TEMPORAY TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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/* 13. 不支持 table constraint 限制 */
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME,
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PRIMARY KEY(idle)
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME,
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CONSTRAINT CONSTR_KEY UNIQUE(idle)
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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CREATE TABLE CPU(
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idle real TSFIELD,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME,
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CONSTRAINT CONSTR_KEY PARTIAL CLUSTER KEY(idle)
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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/* 14. 不支持 column constraint 限制 */
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CREATE TABLE CPU(
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idle real TSFIELD PRIMARY KEY,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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CREATE TABLE CPU(
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idle real TSFIELD UNIQUE USING INDEX,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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CREATE TABLE CPU(
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idle real TSFIELD NOT NULL,
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IO real TSFIELD,
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scope text TSTAG,
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IP text TSTAG,
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time timestamp TSTIME
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) with (TTL='7 days', PERIOD = '1 day', orientation=TIMESERIES)
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distribute by hash(IP);
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create unique index uindex on cpu(io);
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DO $$ BEGIN PERFORM pg_sleep(3); END $$;
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DROP TABLE CPU;
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