join functions

Hello, Hackers!<br /> We have a project developed at Interbase and Firebird.<br /> Now we try use PostgreSQL and have
someproblem<br /><br /> Why doesn`t work this query?<br /> select table1.field1, func1.field2 from table1 left outer
joinfunc1(<font color="#ff0000">table1.field1</font>) on true where func1.field3 in (20, 100);<br /><br /> If i have
otherthan LEFT OUTER JOIN I can understand why <br />   ERROR:  invalid reference to FROM-clause entry for table
"table1"<br/><br /> but why here? <br />   for each row of table1 just evaluate func1(table1.field1)<br /><br /> To
reproduceexec this script:<br /><br /> drop table if exists table1;<br /> create table table1(field1 integer);<br />
createor replace function func1(inputparam integer) <br />   returns table(field1 integer, field2 integer, field3
integer)as <br /> $BODY$<br /> begin <br />   field1 := inputparam * 2;<br />   field2 := inputparam * 3;<br />  
field3:= inputparam * 4;<br />   return next;<br /><br />   inputparam := inputparam * inputparam;<br />   field1 :=
inputparam* 2;<br />   field2 := inputparam * 3;<br />   field3 := inputparam * 4;<br />   return next;<br /> end;<br
/>$BODY$<br /> LANGUAGE plpgsql VOLATILE;<br /><br /> insert into table1 values(5);<br /><br /> --select table1.field1,
func1.field2from table1 left outer join func1(table1.field1) on true where func1.field3 in (20, 100);<br /> select
table1.field1,func1.field2 from table1 left outer join func1(5) on true where func1.field3 in (20, 100);<br /><br /><br
/>Please help resolve this problem!<br /><br /><pre class="moz-signature" cols="72">-- 
 
С уважением,
Зотов Роман Владимирович
руководитель Отдела инструментария 
ЗАО "НПО Консультант"
г.Иваново, ул. Палехская, д. 10
тел./факс: (4932) 41-01-21
mailto: <a class="moz-txt-link-abbreviated" href="mailto:zotov@oe-it.ru">zotov@oe-it.ru</a></pre>