2、创建需要分区表,按学生的入学时间分区 PARTITION BY RANGE可以通过学生的入学时间stu_enrol_date按年去分区。 CREATETABLEtb_student ( stu_idINTNOTNULL, stu_nameVARCHAR(100)NOTNULL, stu_sexVARCHAR(2), stu_ageINT, stu_gradeVARCHAR(2), stu_enrol_dateDATENOTNULL )PARTITIONBYRANGE( stu_enrol_date...
partition by range(transaction_date) subpartition by hash(transaction_id) subpartitions 3 store in (dinya_space01,dinya_space02,dinya_space03) ( partition part_01 values less than(to_date('2006-01-01','yyyy-mm-dd')), partition part_02 values less than(to_date('2010-01-01','yyyy-mm-...
CREATE TABLE 表名 ( [{ 列名称 数据_类型} [, ... ] ] ) PARTITION BY RANGE ( [{ 列名称 } [, ...] ] ); 范围分区的KEY值可由多个字段组成(最多32个字段)。 1. 2. 3. 例 postgres=# create table test(n int) partition by range(n); CREATE TABLE 1. 2. 范围分区—创建分区 创建...
PARTITION BY RANGE (i1); 2.添加分区 CREATE FOREIGN TABLE myn1 PARTITION OF myn FOR VALUES FROM (1000) TO (2000) SERVER lxdb options(store 'ios'); CREATE FOREIGN TABLE myn2 PARTITION OF myn FOR VALUES FROM (2000) TO (3000) SERVER lxdb options(store 'ios'); CREATE FOREIGN TABLE my...
PARTITION BY RANGE (i1); 2.添加分区 CREATE FOREIGN TABLE myn1 PARTITION OF myn FOR VALUES FROM (1000) TO (2000) SERVER lxdb options(store 'ios'); CREATE FOREIGN TABLE myn2 PARTITION OF myn FOR VALUES FROM (2000) TO (3000) SERVER lxdb options(store 'ios'); ...
-- 创建分区表 CREATE TABLE sales ( id SERIAL PRIMARY KEY, product_id INT NOT NULL, sale_date DATE NOT NULL, amount NUMERIC(10, 2) ) PARTITION BY RANGE (sale_date); -- 创建分区 CREATE TABLE sales_2023 PARTITION OF sales FOR VALUES FROM ('2023-01-01') TO ('2024-01-01'); CREATE...
在PostgreSQL中,我们可以使用“partition by”子句来指定最后一条分区。这对于那些希望根据某一特定值或者行数来定义最后一条分区的用户非常有用。 首先,我们需要在创建表时定义分区。以下是一个示例表创建语句: sql CREATE TABLE my_table ( id INT, date_column DATE ) PARTITION BY RANGE (date_column); 在上...
CREATE TABLE order_with_returns PARTITION BY RANGE ("date"); 我创建了这样的分区 DO $$ DECLARE partition_date DATE := DATE('2021-01-01'); partition_month VARCHAR := ''; values_from VARCHAR := ''; values_to VARCHAR := '';
)partition by range (id); create table t5_a partition of t5 for values from (001) to (010); create table t5_a partition of t5 for values from (010) to (020); create table t5_a partition of t5 for values from (020) to (030); ...
range 分区 注意前后时间范围分配衔接 分区依据在partition by range, CREATE TABLE "table_name" ( "id" bigserial not null, "report_date" date, "created_at" timestamp(0), "updated_at" timestamp(0) )partition by range(report_date)