Re: Syntax help please - Mailing list pgsql-sql

From Ruben Gouveia
Subject Re: Syntax help please
Date
Msg-id 51e507b0809041255h70c079d7iea76e1a71c837514@mail.gmail.com
Whole thread Raw
In response to Re: Syntax help please  ("Fernando Hevia" <fhevia@ip-tel.com.ar>)
List pgsql-sql
I can't believe myself. It always comes down to some missing semicolon. Thanks for your help. I am embarrassed.

On Thu, Sep 4, 2008 at 12:49 PM, Fernando Hevia <fhevia@ip-tel.com.ar> wrote:
You seem to be missing a ';' in this line:

       v_from := c_from ;
       v_where := p_where            <--- missing ; here
       v_stmt := c_select || v_from || v_where;

Regards,
Fernando



________________________________

       De: pgsql-sql-owner@postgresql.org
[mailto:pgsql-sql-owner@postgresql.org] En nombre de Ruben Gouveia
       Enviado el: Jueves, 04 de Septiembre de 2008 16:37
       Para: pgsql-sql@postgresql.org
       Asunto: [SQL] Syntax help please


       I can't for the life of me figure out what's wrong with this syntax.
I get the following error when i try and create this function.

       ERROR:  syntax error at or near "$2" at character 15
       QUERY:  SELECT   $1   $2  :=  $3  ||  $4  ||  $5
       CONTEXT:  SQL statement in PL/PgSQL function "fcn_gen_statement"
near line 24

       here's what i am trying to create:

       CREATE OR REPLACE FUNCTION fcn_gen_statement(p_type varchar,
                                                    p_where varchar,
                                                    p_newonly numeric)
       RETURNS varchar AS $$

       DECLARE
           c_select varchar(64) := 'select count(distinct m.id) ';
           c_from varchar(64) := 'from job m ';
           c_newonly_from varchar(128) := 'from (select id,
min(date_created) as date_created '||
                                                'from hr '||
                                                'group_by id) m ';
           v_from varchar(512);
           v_where varchar(512);
           v_stmt varchar(2048);

       BEGIN
           if p_newonly = 1 then
               v_from := c_newonly_from;
           else
               v_from := c_from;
           end if;

           if upper(p_type) = 'NEW' then
               v_stmt := c_select || v_from || p_where;
           elsif upper(p_type) = 'OLD' then
               v_from := c_from ;
               v_where := p_where
               v_stmt := c_select || v_from || v_where;
             elsif upper(p_type) = 'LAST_JOB' then
               v_from := v_from ||
                   ', (select distinct job_id ' ||
                   'from job_log' ||
                   'where status = 10) d ';
               v_where := p_where ||
                   'and m.id = d.job_id ';
               v_stmt := c_select || v_from || v_where;
           elsif upper(p_type) = 'NEW_JOB' then
               v_from := v_from ||
                   ', (select distinct job_id ' ||
                   'from job_log' ||
                   'where status = 12) d ';
               v_where := p_where ||
                   'and m.id = d.job_id ';
               v_stmt := c_select || v_from || v_where;

           end if;
           return (v_stmt);
       END;
       $$ LANGUAGE plpgsql;






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