问postgresql 9.1.3：“运算符不唯一”问题EN最近ChatGPT火出圈了，它和前阵子的Stable Diffusion（AI...
从2010年9.0版开始，PostgreSQL已经连续四个版本稳定地按时在每年9月中旬发布，从一个侧面也显示了开发...
varchar和text同样都是字符串类型,而且用的相同的结构体,我的感知是效果是相同的,然后在使用过程中还是发生错误: ERROR:functionfunc(unknown,unknown)isnotuniqueLINE1:selectfunc('***','***');^HINT:Couldnotchooseabestcandidatefunction.Youmightneedtoaddexplicittypecasts. 这里的问题是,使用varchar,unknown不...
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. 上传源码安装文件及解压 [root@centos79 ~]# ls -lh postgresql-14.12.tar.gz -rw-r...
ERROR: The with length 90 is not unique CONTEXT: PL/pgSQL function inline_code_block line 17 at RAISE SQL state: P0001 4) Handling exceptions as SQLSTATE codes The following example is the same as the one above except that it uses the SQLSTATE codes instead of the condition names: do...
Cause: org.postgresql.util.PSQLException: ERROR: function date_format(timestamp without time zone, unknown) does not exist PostgreSQL没有date_format函数，用to_char函数替换。替换例子：// %Y => YYYY // %m => MM // %d => DD // %H => HH24 // %i => MI // %s => SS to_char(time...
ALTER FUNCTION修改一个函数的定义。ALTER FUNCTION name ( [ type [, ...] ] ) RENAME TO new_name ALTER FUNCTION name ( [ type [, ...] ] ) OWNER TO new_ownerALTER GROUP修改一个用户组。ALTER GROUP groupname ADD USER username [, ... ] ALTER GROUP groupname DROP USER username [, ....
解决方法:使用EXECUTE PROCEDURE 代替 EXECUTE FUNCTION在PostgreSQL 11 及更早的版本中,触发器语法使用 EXECUTE PROCEDURE 而不是 EXECUTE FUNCTION。更新你的触发器创建语句如下:CREATE TRIGGER update_timestamp_triggerBEFORE UPDATE ON your_tableFOR EACH ROWEXECUTE PROCEDURE update_timestamp();...
Allow the specification of a function name without arguments in DDL commands, if it is unique (Peter Eisentraut) Improve speed of VACUUM’s removal of trailing empty heap pages (Claudio Freire, Álvaro Herrera) Add full text search support for JSON and JSONB (Dmitry Dolgov) The functions...
* found by namespace lookup. Each function/operator is identified * by OID and by argument types; the list must be pruned by type * resolution rules that are embodied in the parser, not here. * See FuncnameGetCandidates's comments for more info. ...