回复： I added a √ operator, the sqrt function is still used internally, but now there is a problem, it affects the := and .. operators of the database

Hello everyone, I modified src/fe_utils/psqlscan.l src/interfaces/ecpg/preproc/pgc.l src/pl/plpgsql/src/pl_gram.y according to his suggestion to keep scan.l gram.y consistent , But still error

------------------ 原始邮件 ------------------
发件人: "David G. Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com&gt;;
发送时间:&nbsp;2021年11月12日(星期五) 下午2:09
收件人:&nbsp;"孤傲小二～阿沐"<2903807914(at)qq(dot)com&gt;;
抄送:&nbsp;"Tom Lane"<tgl(at)sss(dot)pgh(dot)pa(dot)us&gt;;"pgsql-general"<pgsql-general(at)lists(dot)postgresql(dot)org&gt;;
主题:&nbsp;Re: I added a √ operator, the sqrt function is still used internally, but now there is a problem, it affects the := and .. operators of the database

On Thursday, November 11, 2021, 孤傲小二～阿沐 <2903807914(at)qq(dot)com&gt; wrote:
Hello, I think what you said is right, it should be the problem. But I don't know what to do in the lexical analysis system of plpgsql to solve this problem.

“To match” means keep two copies identical, in this case manually.&nbsp; Try grepping for the pre-change line you are modifying to see where its twin is.

David J.
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