The != and +/- signs are joined together as an operator
case:
select 1 !=-1;
select 1 !=+1;
Regards
谭忠涛 数据研究院数据库事业部
北京东方金信科技股份有限公司
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On Tuesday, March 18, 2025, 谭忠涛 <zhongtao.tan@seaboxdata.com> wrote:
case:
select 1 !=-1;
select 1 !=+1;
Explain why you think it is a bug. From what I see those are potentially
valid operator names that do not exist so “operator not found” is the
correct outcome.
David J.
"David G. Johnston" <david.g.johnston@gmail.com> writes:
On Tuesday, March 18, 2025, 谭忠涛 <zhongtao.tan@seaboxdata.com> wrote:
select 1 !=-1;
select 1 !=+1;
Explain why you think it is a bug. From what I see those are potentially
valid operator names that do not exist so “operator not found” is the
correct outcome.
Our rules for operator names are here:
https://www.postgresql.org/docs/current/sql-syntax-lexical.html#SQL-SYNTAX-OPERATORS
regards, tom lane