From: | Teodor Sigaev <teodor(at)sigaev(dot)ru> |
---|---|
To: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Michael Paquier <michael(dot)paquier(at)gmail(dot)com>, Marko Tiikkaja <marko(at)joh(dot)to>, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Corey Huinker <corey(dot)huinker(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, Jim Nasby <Jim(dot)Nasby(at)bluetreble(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: proposal: function parse_ident |
Date: | 2016-02-08 15:55:47 |
Message-ID: | 56B8BA83.1090504@sigaev.ru |
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Thread: | |
Lists: | pgsql-hackers |
> rebased, messages changes per Tom's proposal
Cool feature and sometimes I needed it a lot.
But, seems, there are some bugs in error processing.
1
Following query is okay:
# select * from parse_ident(E'"Some \r Schema".someTable');
parse_ident
------------------------------
{"Some \r Schema",sometable}
but:
% select * from parse_ident(E'"Some \r Schema".9someTable');
Schema".9someTable"tifier after "." symbol: ""Some
Return carriage is not escaped in error message. Suppose, any other
special charaters will not be escaped.
2
# select * from parse_ident('.someTable');
ERROR: missing identifier after "." symbol: ".someTable"
Why AFTER instead of BEFORE?
2
Function succesfully truncates long indentifier but not in case of quoted
identifier.
select length(a[1]), length(a[2]) from
parse_ident('"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx".yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy')
as a ;
length | length
--------+--------
414 | 63
--
Teodor Sigaev E-mail: teodor(at)sigaev(dot)ru
WWW: http://www.sigaev.ru/
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