On 10/20/2015 07:00 AM, pinker wrote:
Maybe somebody have an idea how to escape text string for use in hstore
column? I have tried $$ and quote_literal in audit trigger function, but
still db won't let me pass values with // or ' to the hstore... INSERT
FROM trigger function:

     EXECUTE 'INSERT INTO history.' || TG_TABLE_SCHEMA || '_' || TG_TABLE_NAME 
|| l_table_suffix ||
             '(operation, event_time, executed_by, new_value)
                  VALUES(''' || TG_OP || ''', ''' || CURRENT_TIMESTAMP || ''', 
''' || SESSION_USER || ''', $$''' ||
             hstore(NEW) || '''$$)';

During insert occurs error:

INSERT INTO my_table ("some_id", "someother_id","description") VALUES (1751, 
10907,'gdfddfg''gdfg');

The same occurs with backslash:

INSERT INTO my_table ("some_id", "someother_id","description") VALUES (1751, 
10907,'gdfddfg//gdfg');

ERROR:  Syntax error near ''' at position 73
LINE 2: ..., '2015-10-20 15:41:08.534645+02', 'my_user', $$'"some...
                                                              ^
QUERY:  INSERT INTO history.public_my_table_2015_10(operation, event_time, 
executed_by, new_value)
                  VALUES('INSERT', '2015-10-20 15:41:08.534645+02', 'my_user', $$'"some_id"=>"1751", 
"someother_id"=>"10907", "description"=>"gdfddfg'gdfg"'$$)
CONTEXT:  PL/pgSQL function insert() line 6 at EXECUTE statement


Here is my very similar function:

CREATE OR REPLACE FUNCTION utility.archive_del_record() RETURNS trigger AS
$BODY$
DECLARE
    tbl_name text := TG_TABLE_NAME || '_delete' ;
    archive_row hstore := hstore(OLD.*);
    user_name text := session_user;
BEGIN
    EXECUTE 'INSERT INTO ' ||quote_ident(tbl_name) ||
        '(record_fld, del_ts, del_user)'
        || ' VALUES('||quote_literal(archive_row)||', now(),' ||
        quote_literal(user_name)||')';
RETURN OLD;
END;
$BODY$
LANGUAGE plpgsql SECURITY DEFINER;




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--
Adrian Klaver
adrian.kla...@aklaver.com


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