改完之后我们再来查询我们的表和视图,发现都是ok的。 postgres=# \d a Table "public.a" Column | Type | Collation | Nullable | Default ---+---+---+---+--- id | integer | | | name | character varying(30) | | | postgres=# insert into a values(1,'aaaaaaaaaaaaaaaaaaaaaaaaaaaaa'...
创建测试表,字段sum_score为generated column,如下: postgres=# CREATE TABLE score(stuid int4, chinese int2, math int2, sum_score int2 GENERATED ALWAYS AS (chinese+math) STORED ); CREATE TABLE postgres=# \d score Table "public.score" Column | Type | Collation | Nullable | Default ---+--...
postgres=#updatepg_attributesetatttypmod=68whereattname='c1'andattrelidin(21988,21998,22002);UPDATE3 更新后,可以看到结构发生了变化. postgres=# \d+ test_tTable"public.test_t"Column |Type|Collation|Nullable|Default|Storage|Stats target|Description ---+---+---+---+---+---+---+--- id...
postgres=# \d md2 Table "public.md2" Column | Type | Collation | Nullable | Default ---+---+---+---+--- i | integer | | | j | real | | | k | numeric(12,2) | | | js | json | | | postgres=# alter table md2 rename column i to z; ALTER TABLE Time: 53.794 ms ...
Postgres on Neon comes with a data admin UI. Get the free plan here. Summary: in this tutorial, you will learn how to use the PostgreSQL ALTER VIEW statement to change the properties of a view. Introduction to the PostgreSQL ALTER VIEW statement The ALTER VIEW statement allows you to ...
t1p3 FOR VALUES FROM (300) TO (400) The table will accept a row with a = 150. INSERT INTO t1 VALUES (150, 150); INSERT 0 1 For more information about Postgres, contact EnterpriseDB atinfo@EDBPostgres.com. Ashutosh Bapat is a Database Developer at EnterpriseDB....
YSQL behavior (from postgres perspective) looks correct: yugabyte=# create table t (k int primary key, v int); CREATE TABLE yugabyte=# create index i on t (v); CREATE INDEX yugabyte=# \d+ t Table "public.t" Column | Type | Collation | Nullable | Default | Storage | Stats target...