?????? 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




------------------ ???????? ------------------
??????:                                                                         
                                               "David G. Johnston"              
                                                                      
<david.g.johns...@gmail.com&gt;;
????????:&nbsp;2021??11??12??(??????) ????2:09
??????:&nbsp;"??????????????"<2903807...@qq.com&gt;;
????:&nbsp;"Tom 
Lane"<t...@sss.pgh.pa.us&gt;;"pgsql-general"<pgsql-general@lists.postgresql.org&gt;;
????:&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, ?????????????? <2903807...@qq.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.
&nbsp;