运行 atlas schema apply –env local：-- Planned Changes:-- Create "random_move" functionCREATE FUNCTION "random_move" () RETURNS "move" LANGUAGE sql AS $$ SELECT move FROM unnest(enum_range(NULL::move)) move ORDER BY random() LIMIT 1; $$;-- Create "play" functionCREATE FUNCTION "pla...
CREATE[ORREPLACE]FUNCTIONname([[argmode][argname]argtype[{DEFAULT|=}default_expr][,...]])[RETURNSrettype|RETURNSTABLE(column_name column_type[,...])]{LANGUAGElang_name|TRANSFORM{FORTYPEtype_name}[,...]|WINDOW|IMMUTABLE|STABLE|VOLATILE|[NOT]LEAKPROOF|CALLEDONNULLINPUT|RETURNSNULLONNULLINPUT|...
CREATE FUNCTION part_trig()RETURNS trigger LANGUAGEplpgsql AS $$ BEGIN BEGIN /* try to create a tableforthe new partition */ EXECUTE format('CREATE TABLE %I (LIKE tab INCLUDING INDEXES)','tab_'||to_char(NEW.ts,'YYYYMMDD')); /* * tell listener to attach the partition *(onlyifa ...
* Execute a CREATE FUNCTION (or CREATE PROCEDURE) utility statement. * 执行CREATE FUNCTION (or CREATE PROCEDURE)语句 */ObjectAddressCreateFunction(ParseState *pstate, CreateFunctionStmt *stmt) {char*probin_str;char*prosrc_str; Oid prorettype;boolreturnsSet;char*language; ...
PostgreSQL 之 CREATE FUNCTION 官方文档 语法: CREATE [ OR REPLACE ] FUNCTION name ( [ [ argmode ] [ argname ] argtype [ { DEFAULT | = } default_expr ] [, ...] ] ) [ RETURNS rettype | RETURNS TABLE ( column_name column_type [, ...] ) ] { LANGUAGE lang_name | ...
CREATE[ORREPLACE]FUNCTION函数名 ([参数模式] [参数名] 参数类型) [RETURNS返回类型|RETURNSTABLE(列名 列类型)]AS$$ definition $$LANGUAGE语言名; CREATEFUNCTION:创建一个新函数CREATEORREPLACEFUNCTION:创建一个新函数或者替换一个现有的函数 参数模式 :IN、OUT、INOUT等等。如果省略,默认为IN。OUT参数不能和RE...
QUERY：CREATE OR REPLACE FUNCTION word_frequency(_max_tokens int) RETURNS TABLE (txt&...
postgresql PL/pgSQL return setof和TABLE的区别 在pg中,广泛的使用了表函数代替视图,返回集合有两种定义,setof和table。他们的区别在于table明确定义了字段名和类型,如下: CREATE FUNCTION events_by_type_1(text) RETURNS TABLE(id bigint, name text) AS $$...
table的结果返回通过return next实现,所以需要在存储过程中每返回一条记录的时候就需要return next一次,不可以完全依赖最后的return create or replace function public.sf_get_polyline_time_seq(in_platnumber text, in_time text) --in_time '2018-02-21' returns table( id text, polyline text, timestamps...
CREATE PROCEDURE GetUsers() BEGIN SELECT * FROM users; END // DELIMITER ; PostgreSQL CREATE OR REPLACE FUNCTION get_users() RETURNS TABLE(name VARCHAR, email VARCHAR) AS $$ BEGIN RETURN QUERY SELECT * FROM users; END; $$ LANGUAGE plpgsql; ...