Re: Returning multiple result sets From "Pavel Stehule" Date: 20 November 2005, 03:43:09 > >Consider: > >create function a(anyrecord) returns anyrecord; >create function b(int4) returns anyrecord; > >select a(b(2)); > for my task I need little different form :-( create ...
XML: formatting values pg_size_bytes: support for "B" New functions: erf, erfc Performance Parallel execution of full and right hash joins Options for the right antijoin Relation extension mechanism rework Don’t block HOT update by BRIN index postgres_fdw: aborting transactions on remote servers...
In today’s E111 of “5mins of Postgres” we discuss faster B-tree index scans in Postgres 17 for queries that involve IN lists or other cases where multiple array values are being passed to Postgres (ScalarArrayOpExpr). We show how even simple cases now avoid repeated page access, and ...
BEGIN找到数据库安装的bin目录,然后在此处打开cmd 备份数据库,指令如下: pg_dump -h164.82.233.54-U postgres databasename > C:\databasename.bak 指令解释:如上命令,pg_dump 是备份数据库指令,164.82.233.54是数据库的ip地址(必须保证数据库允许外部访问的权限哦~) 当然本地的数据库ip写 localhost;postgres 是...
(prev); clear_preempt_need_resched(); // 如果产生了任务切换,则需要切换上下文 if (likely(prev != next)) { rq->nr_switches++; rq->curr = next; /* * The membarrier system call requires each architecture * to have a full memory barrier after updating * rq->curr, before returning to...
MERGE command now supports RETURNING clause MERGE INTO products p USING stock s ON p.product_id = s.product_id WHEN MATCHED AND s.quantity > 0 THEN UPDATE SET in_stock = true, quantity = s.quantity WHEN NOT MATCHED THEN INSERT (product_id, in_stock, quantity) VALUES (s.product_id,...
1.首先创建一个类Files using System.IO; using System.Security.AccessControl; namespace 命名空间 { ...
Mirror of the official PostgreSQL GIT repository. Note that this is just a *mirror* - we don't work with pull requests on github. To contribute, please see https://wiki.postgresql.org/wiki/Submitting_a_Patch - postgres/configure.ac at master · kazi-raki
passing in a very large number of values into Postgres, as part of anINSERTstatement and as part of aVALUESclause, it's actually pretty expensive because Postgres has to parse each value separately and it creates a separate struct on the Postgres side for each individual entry in thatVALUES...
{ "tool_name": "transaction_tool", "arguments": { "operations": [ { "statement": "INSERT INTO orders (customer_id, order_date, status) VALUES ($1, NOW(), 'pending') RETURNING order_id", "params": [101] }, { "statement": "INSERT INTO order_items (order_id, product_sku, quan...