psql -c "CREATE TABLE tab_\$dateStr (LIKE tab INCLUDING INDEXES); ALTER TABLE tab ATTACH PARTITION tab_\$dateStr FOR VALUES IN ('\$dateStr')"; EOF (crontab -l2>/dev/null;echo"0 14 * * * bash /tmp/create_part.sh ")|crontab- 使用数据库内置调度器,如 pg_cron、pg_timetable 以p...
AI代码解释 DO$$BEGINEXECUTE'CREATE TABLE IF NOT EXISTS orders_'||EXTRACT(YEARFROMCURRENT_DATE+INTERVAL'1 year')||' PARTITION OF orders FOR VALUES FROM ('''||CURRENT_DATE+INTERVAL'1 year'||''') TO ('''||CURRENT_DATE+INTERVAL'2 years'||''')';END$$; 通过这种方式,每年年初会自动生...
CREATE TABLE students (id INTEGER, status character varying(30), name character varying(30)) PARTITION BY LIST(status); CREATE TABLE stu_active PARTITION OF students FOR VALUES IN ('ACTIVE'); CREATE TABLE stu_exp PARTITION OF students FOR VALUES IN ('EXPIRED'); CREATE TABLE stu_others PARTI...
CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXISTS ] table_name PARTITION OF parent_table [ ( { column_name [ WITH OPTIONS ] [ column_constraint [ ... ] ] | table_constraint } [, ... ] ) ] { FOR VALUES partition_bound_spec | DEFAULT } ...
CREATE TABLE orders_2024 PARTITION OF orders FOR VALUES FROM ('2024-01-01') TO ('2025-01-01'); 1. 2. 3. 4. 5. 这一步骤为每年创建了一个独立的分区表。每当有订单数据插入时,PostgreSQL 会根据order_date自动选择将数据插入到哪个分区表中。
postgres=# create table test(n int) partition by range(n); CREATE TABLE 范围分区—创建分区 创建分区语法: CREATE TABLE 表名 PARTITION OF 主表 FOR VALUES FROM{ ( 表达式 [, ...] ) | MINVALUE } [, ...] TO { ( 表达式 [, ...] ) | MAXVALUE } [, ...] [ TABLESPACE 表空间名...
postgres=# create table test(n int) partition by range(n); CREATE TABLE 范围分区—创建分区 创建分区语法: CREATE TABLE 表名 PARTITION OF 主表 FOR VALUES FROM{ ( 表达式 [, ...] ) | MINVALUE } [, ...] TO { ( 表达式 [, ...] ) | MAXVALUE } [, ...] [ TABLESPACE 表空间名...
create_timetimestamp(0)withouttimezone, remarkchar(1) )PARTITIONBYRANGE(create_time);CREATETABLEtbl_log2_p201801PARTITIONOFtbl_log2FORVALUESFROM('2018-01-01')TO('2018-02-01'); AI代码助手复制代码 插入2月的数据就会报错 postgres=#INSERTINTOtbl_log2(id, create_time, remark)VALUES(1,'2018-01...
create table log_history_2021_04 partition of log_history_2021forvalues from ('2021-09-01') to ('2021-12-31'); 查看表定义查看分区 postgres=# \d+ log_history;Partitioned table"public.log_history"Column | Type | Collation | Nullable | Default | Storage | Stats target | Description ...
postgres=#createtablel (l_idint, l_name name, l_datedate)partitionbylist (l_id);CREATETABLEpostgres=#createtablel1partitionoflforvaluesin(1);CREATETABLEpostgres=#createtablel2partitionoflforvaluesin(2);CREATETABLEpostgres=#createtablel3partitionoflforvaluesin(3);CREATETABLEpostgres=#createtablel4partit...