add the notion of an appcolumn, and use it to push into variables to generate route sql

generate_sql/col_baseline.sql

@@ -1,15 +1,21 @@
 DO
 $$
 DECLARE
-    clist text;
-    ytdbody text;
+    _clist text;
+    _ytdbody text;
+    _order_date text;
+    _ship_date text;
+    _order_status text;
 
 BEGIN
+
+CREATE TABLE IF NOT EXISTS fc.sql(cmd text PRIMARY KEY, t text );
+
 -------------------------------build a column list----------------------------------------
 SELECT 
     string_agg(format('%I',cname),E'\n    ,' ORDER BY opos ASC)
 INTO
-    clist
+    _clist
 FROM 
     fc.target_meta 
 WHERE 
@@ -17,11 +23,14 @@ WHERE
 
 --RAISE NOTICE 'build list: %',clist;
 
+SELECT (SELECT cname FROM fc.target_meta WHERE appcol = 'order_date') INTO _order_date;
+SELECT (SELECT cname FROM fc.target_meta WHERE appcol = 'ship_date') INTO _ship_date;
+SELECT (SELECT cname FROM fc.target_meta WHERE appcol = 'order_status') INTO _order_status;
+
 SELECT 
-$a$
-SELECT
+$a$SELECT
     $a$::text||    
-    clist||
+    _clist||
     $b$
     ,'baseline' "version"
     ,'actuals' iter
@@ -30,18 +39,22 @@ FROM
 WHERE
     (
         --base period orders booked....
-        [order date column name] BETWEEN [supplied target range from date] AND [supplied target range to date]
+        $b$||_order_date||$c$ BETWEEN [app_baseline_from_date] AND [app_baseline_to_date]
         --...or any open orders currently booked before cutoff....
-        OR ([order status column here] IN ([list of statuses indicating still open]) and [order date column name] <= [include open orders through this date])
+        OR ($c$||_order_status||$d$ IN ([app_openstatus_code]) and $d$||_order_date||$e$ <= [app_openorder_cutoff])
         --...or anything that shipped in that period
-        OR ([name of shipdate column] BETWEEN [supplied target range from date] AND [supplied target range to date])
+        OR ($e$||_ship_date||$f$ BETWEEN [app_baseline_from_date] AND [app_baseline_to_date])
     )
     --be sure to pre-exclude unwanted items, like canceled orders, non-gross sales, and short-ships
-$b$::text
+$f$::text
 INTO
-    ytdbody;
+    _ytdbody;
 
-RAISE NOTICE '%', ytdbody;
+--RAISE NOTICE '%', _ytdbody;
+
+INSERT INTO fc.sql SELECT 'baseline', _ytdbody ON CONFLICT ON CONSTRAINT sql_pkey  DO UPDATE SET t = EXCLUDED.t;
 
 END
-$$
+$$;
+
+SELECT * FROM fc.sql;

readme.md

@@ -35,3 +35,5 @@ to-do:
     * problem: how will the incremented order season get updated, adding an interval won't work
         * a table fc.odate, has been built, but it is incomplete, a setup function filling in these date-keyed tables could be setup
         * if a table is date-keyed, fc.perd could be targeted to fill in the gaps
+    * the target sales data has to map have concepts like order_date, and the application needs to know which col is order date
+        * add column called application hook

setup_sql/schema.sql

@@ -10,9 +10,19 @@ CREATE TABLE fc.target_meta (
     ,pretty text
     ,dtype  text
     ,mastcol text
+    ,appcol text
 );
 
 --ALTER TABLE fc.target_meta DROP CONSTRAINT IF EXISTS target_meta_pk;
 ALTER TABLE fc.target_meta ADD CONSTRAINT target_meta_pk PRIMARY KEY (tname, cname);
 
 COMMENT ON TABLE fc.target_meta IS 'target table layout info';
+COMMENT ON COLUMN fc.target_meta.tname IS 'schema.table_name of target sales data table';
+COMMENT ON COLUMN fc.target_meta.cname IS 'column name';
+COMMENT ON COLUMN fc.target_meta.opos IS 'ordinal position of column';
+COMMENT ON COLUMN fc.target_meta.func IS 'a functional entity (like customer, part number) that master tables will be build from';
+COMMENT ON COLUMN fc.target_meta.fkey IS 'primary key for functional entity';
+COMMENT ON COLUMN fc.target_meta.pretty IS 'the presentation name of the column';
+COMMENT ON COLUMN fc.target_meta.dtype IS 'data type of the sales table column';
+COMMENT ON COLUMN fc.target_meta.mastcol IS 'associated field from the master data table if it is different (oseas would refer to ssyr in fc.perd)';
+COMMENT ON COLUMN fc.target_meta.appcol IS 'supply column name to be used for application variables - (specifcy the order date column)';