create function logging_example( log_message text, warning_message text, error_message text ) returns void language plpgsql as $$ begin raise log 'logging message: %', log_message; raise warning 'logging warning: %', warning_message; -- 立即结束函数并回滚事务 raise exception 'logging error:...
drop function if exists test_insert_update(); create function test_insert_update() returns int as $$ Declare findId boolean; begin /* Main Query starts from here as you have asked to create function that is why it is wrapped into it. This is sample example you can modify it as per y...
在我的例子中，将#[sqlx(type_name = "user_role")]添加到我的枚举中解决了我的问题。我将发布我...
Extra configuration parameter for gtm_proxy. Coordinator section has an example.gtmPxySpecificExtraConfig=(none none none none)#--- Coordinators ---#--- shortcuts ---coordMasterDir=$HOME/pgxc/nodes/coord coordSlaveDir=$HOME/pgxc/nodes/coord_slave coordArchLogDir=$HOME/pgxc/nodes/coord_archlog...
If you are on Postgres 9.4+, the new MAKE_INTERVAL() function seems much more readable - probably why they created it. If you want something you can run in your editor, here are a couple of examples (I substituted the original variable binding $3 with the number 2 for an example of ...
create or replace function nvl (anyelement, anyelement) returns anyelement language sql as $$ select case when $1 is null then $2 else $1 END $$; The first example works. But I still have failures with:testdb=> SELECT nvl( sum(balance), 0 ) as b FROM db.bank WHERE user = 123...
A document is the unit of searching in a full-text search system; for example, a magazine article or email message. --Postgres documentation document能够跨越多个表,它代表的是一个逻辑上的独立个体。 建立我们的document 在上一节我们介绍了document的概念,document和我们的表结构没关系,它只和数据有关系...
void (*smgr_create) (SMgrRelation reln, ForkNumber forknum, bool isRedo); bool (*smgr_exists) (SMgrRelation reln, ForkNumber forknum); void (*smgr_unlink) (RelFileNodeBackend rnode, ForkNumber forknum, bool isRedo); void (*smgr_extend) (SMgrRelation reln, ForkNumber forknum, ...
SELECT __tmp_create_user();DROP FUNCTION __tmp_create_user();ALTER USER postgres_exporter WITH PASSWORD 'password';ALTER USER postgres_exporter SET SEARCH_PATH TO postgres_exporter,pg_catalog;-- If deploying as non-superuser (for example in AWS RDS), uncomment the GRANT-- line below and ...
Distributed functions can be created by calling `create_distributed_function` on an existing function and procedure. For example, below are the complete set of steps we use to distributetablesandproceduresgenerated by HammerDB when building the TPROC-C schema: ...