Quote problem - Mailing list pgsql-sql

From Bart Degryse
Subject Quote problem
Date
Msg-id 468E6A69.A3DD.0030.0@indicator.be
Whole thread Raw
List pgsql-sql
Consider a perl function like this
CREATE OR REPLACE FUNCTION public.test(text) RETURNS VOID AS
$body$
  my $var = shift;
  spi_exec_query("INSERT INTO tbltest(field1) VALUES ('$var')");
$body$
LANGUAGE 'plperlu' VOLATILE;
and a table
CREATE TABLE tbltest (
  field1 text
) WITHOUT OIDS;
 
When I call the function like
SELECT test('Do this')
it works. But when I call it like
SELECT test('Don't do that')
it fails (of course). So I call it like
SELECT test('Don''t do that')
It still fails and I do understand why. But how do I solve it in the function?
Using a prepared statement would be a solution, like
  $sel = spi_prepare('SELECT test($1)', 'text');
  spi_exec_prepared($sel, $var);
But I need to get it solved without prepared statements.
What is the best approach considering that $var could contain both
single and double quotes?
Thanks
 
 
 
 
 

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