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...
但是我不知道如何返回查询结果：用途RETURN QUERY：CREATE OR REPLACE FUNCTION word_frequency(_max_tokens...
CREATE OR REPLACE FUNCTION function1 () RETURNS refcursor AS $body$ DECLARE result refcursor; BEGIN open result for select * from table1,table2; --你可以任意选择你想要返回的表和字段 return result; END; $body$ LANGUAGE 'plpgsql' VOLATILE CALLED ON NULL INPUT SECURITY INVOKER; 你的jdbc端编码...
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 OR REPLACE FUNCTION skytf.func_test_result_query_single ( in_id integer) RETURNSSETOF varcharas $$ DECLARE v_rec RECORD; BEGIN return query ( (select name from test_result1 where id = in_id) union (select name from test_result2 where id = in_id) ); ...
postgresql PL/pgSQL return setof和TABLE的区别 在pg中,广泛的使用了表函数代替视图,返回集合有两种定义,setof和table。他们的区别在于table明确定义了字段名和类型,如下: CREATE FUNCTION events_by_type_1(text) RETURNS TABLE(id bigint, name text) AS $$...
/* skip insert into the partitioned table */ RETURN NULL; END; $$; CREATE TRIGGER part_trig BEFORE INSERT ON TAB FOR EACH ROW WHEN(pg_trigger_depth()<1) EXECUTE FUNCTION part_trig(); 代码(实施 LISTEN 和子表 ATTACH) #!/usr/bin/env python3.9 ...
用途RETURN QUERY：CREATE OR REPLACE FUNCTION word_frequency(_max_tokens int)RETURNS TABLE (txt ...
create or replace function match_chunks(chunck_embedding vector(1536), threshold float, count int, min_length int) returns table (id bigint, content text, similarity float) language plpgsql as $$ begin return query select doc_chunks.id, ...
CREATEORREPLACEFUNCTIONcreateinsertscriptfor( tablename_in IN VARCHAR2 )RETURNscript_linesPIPELINED ... PostgreSQL TABLE、PIPELINED兼容性 1、PostgreSQL 建表时,自动建立对应的表类型、表数组类型。 例子 postgres=# create table abc(id int, info text);CREATE TABLE 自动...