[ic] sql query with UNION broken
mike at perusion.com
Fri Aug 22 12:18:58 EDT 2003
Quoting Kevin Walsh (kevin at cursor.biz):
> Jon Jensen [jon at endpoint.com] wrote:
> > Perhaps we should switch the logic of the test, since UPDATE statements
> > will be more homogeneous than SELECTs and also much rarer:
> > $update = 1 if $query =~ /^\s*update\s+/i;
> > But that would mess up DELETE, DROP INDEX/TABLE, CREATE INDEX/TABLE, etc.
> > So maybe just a minor correction would be better:
> > $update = 1 if $query !~ /^\s*\W*\s*select\s+/i;
> The second correction is better, in my opinion. There is only one
> SELECT statement, while there are loads of statements that would need
> $update to be set.
> I suggest a minor correction to your second proposal, as follows:
> $update = 1 if $query !~ /^[\s\W]*select\s+/i;
> That would allow multiple opening parentheses (with or without
> whitespace between) before the SELECT.
Since whitespace is \W, we can simplify to \W*.
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