> Right - so why do we need to escape anything in the expression?
> Shouldn't the user just be able to free-type whatever they want (in
> the same way they would if they were writing the expression as part of
> a query in the Query Tool?
I have to convert column names in expression to data for every row
before generate statement. Without escape char, I don't know
what is column-name, what is lexical. Once the user want to input
a lexical same as one of column-names, confusion occur.
For example, with CSV row "A1,B1,C1,D1":
'Column #1' || <Column #3> will be converted to 'Column #1' || 'C1'
The first is a lexical, the second is CSV column.
But 'Column #1' || Column #3 can't be converted properly.
-----------------------------------------------
Quan Zongliang
quanzongliang@gmail.com
CIT Japan: http://www.cit.co.jp
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