CREATE OR REPLACE FUNCTION mover(src text, dst text, cpquery text, conname text, ifbin boolean) returns void as
$$
DECLARE
cnt integer;
dlcnt integer;
del_count integer;
ret text;
BEGIN
SELECT pg_catalog.dblink_copy_open(conname, dst, ifbin) INTO ret ;
RAISE LOG 'dblink_open %',ret;
execute 'SELECT 1 as check FROM ' || src ||' limit 1' into cnt;
IF cnt=0 THEN
PERFORM pg_sleep(2);
END IF;
IF ifbin=true THEN
RAISE DEBUG 'Start to Copy data with binary';
execute 'COPY (' || cpquery || ' ) to function pg_catalog.dblink_copy_write with binary';
RAISE DEBUG 'Finish Copy data';
ELSE
RAISE DEBUG 'Start to Copy data without binary';
execute 'COPY (' || cpquery || ' ) to function pg_catalog.dblink_copy_write';
RAISE DEBUG 'Finish Copy data';
END IF;
execute 'DELETE FROM ' || src;
GET DIAGNOSTICS del_count=ROW_COUNT;
RAISE INFO 'DELETE % rows',del_count;
SELECT pg_catalog.dblink_copy_end() INTO ret;
RAISE LOG 'dblink_end %',ret;
END;
$$
language plpgsql;
作为代码,我想使用 RAISE
将一些消息放入日志中,但位置在哪里我的日志文件?RAISE DEBUG
输出在哪里?
它们可以输出到 Postgres 日志,报告回客户端,或两者兼而有之。这些由服务器端设置控制,log_min_messages
和client_min_messages
。
有关更多详细信息,请参阅以下文档:
http://www.postgresql.org/docs/current/static/plpgsql-errors-and-messages.html
http://www.postgresql.org/docs/current/static/runtime-config-logging.html
正如@a_horse_with_no_name建议的:这些参数也可以通过客户端的SET
命令进行设置。
它可以通过SQL设置:set client_min_messages to 'debug';