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add dynamic target table; dynamically create additional columns if application columns were not defined

This commit is contained in:
Paul Trowbridge 2022-04-06 01:52:18 -04:00
parent 00c8a063cd
commit 57051675b3
5 changed files with 106 additions and 44 deletions
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14
routes/baseline/gen_baseline.sql
View File

@ -13,6 +13,8 @@ DECLARE
_date_funcs jsonb;
_perd_joins text;
_interval interval;
_target_table text;
_version_col text;
/*----------------parameters listing--------------
app_baseline_from_date
@ -30,8 +32,10 @@ BEGIN
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 format('%I',max(schema))||'.'||format('%I',max(tname)) INTO _target_table FROM fc.target_meta;
--the target interval
SELECT interval '1 year' INTO _interval;
SELECT cname INTO _version_col FROM fc.target_meta WHERE appcol = 'version';
SELECT jsonb_agg(func) INTO _date_funcs FROM fc.target_meta WHERE dtype = 'date' AND fkey is NOT null;
--create table join for each date based func in target_meta joining to fc.perd static table
--the join, though, should be based on the target date, which is needs an interval added to get to the target
@ -70,7 +74,7 @@ SELECT
--...but it's not the date itself...
WHEN fkey IS NULL THEN
--...pull the associated date field from perd table
func||'.'||m.dateref
func||'.'||m.fcol
--...and it's the primary key date...
ELSE
--use the date key but increment by the target interval
@ -101,7 +105,7 @@ $$SELECT
,'forecast_name' "version"
,'actuals' iter
FROM
fc.live o
$$||_target_table||$$ o
WHERE
(
--base period orders booked....
@ -128,7 +132,7 @@ $$
,'forecast_name' "version"
,'plug' iter
FROM
fc.live o$$||E'\n'||_perd_joins||$$
$$||_target_table||' o'||E'\n'||_perd_joins||$$
WHERE
$$||format('%I',_order_date)||$$ BETWEEN 'app_plug_fromdate'::date AND 'app_plug_todate'::date
--be sure to pre-exclude unwanted items, like canceled orders, non-gross sales, and short-ships
@ -152,7 +156,7 @@ FROM
)
,ins AS (
INSERT INTO
fc.live
$$||_target_table||$$
SELECT
*
FROM
@ -171,7 +175,7 @@ INTO
------------------------------stack the sql into the final format------------------------------------------------
SELECT
$$DELETE FROM fc.live WHERE version = 'forecast_name';
$$DELETE FROM $$||_target_table||$$ WHERE $$||_version_col||$$ = 'forecast_name';
WITH
baseline AS (
$$||_ytdbody||

72
setup_sql/build_master_tables.sql
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@ -5,31 +5,85 @@ $$
DECLARE
f record;
_sql text;
_target_table text;
BEGIN
SELECT format('%I',max(schema))||'.'||format('%I',max(tname)) INTO _target_table FROM fc.target_meta;
FOR f IN
SELECT
tname,
func,
-------------------------------------------create table---------------------------------------------------------------------------------------------------------
'DROP TABLE IF EXISTS fc.'||func||' CASCADE; CREATE TABLE IF NOT EXISTS fc.'||func||' (' ||
string_agg(format('%I',cname) || ' ' || dtype,', ' ORDER BY CASE WHEN fkey IS NOT NULL THEN 0 ELSE opos END ASC) ||
', PRIMARY KEY ('||string_agg(format('%I',cname),', ') FILTER (WHERE fkey = func)||'));' AS ddl,
', PRIMARY KEY ('||string_agg(format('%I',cname),', ') FILTER (WHERE COALESCE(fkey,'') <> '')||'));' AS ddl,
-------------------------------------------populate table-------------------------------------------------------------------------------------------------------
---need to add a clause to exclude where the key is null
'INSERT INTO fc.'||func||' SELECT DISTINCT ' || string_agg(format('%I',cname),', ' ORDER BY CASE WHEN fkey IS NOT NULL THEN 0 ELSE opos END ASC) || ' FROM '||tname||' WHERE '||
string_agg(format('%I',cname)||' IS NOT NULL ',' AND ') FILTER (WHERE fkey = func)||' ON CONFLICT DO NOTHING' AS pop,
'INSERT INTO fc.'||func||' SELECT DISTINCT ' || string_agg(format('%I',cname),', ' ORDER BY CASE WHEN fkey IS NOT NULL THEN 0 ELSE opos END ASC) || ' FROM '||schema||'.'||tname||' WHERE '||
string_agg(format('%I',cname)||' IS NOT NULL ',' AND ') FILTER (WHERE COALESCE(fkey,'') <> '')||' ON CONFLICT DO NOTHING' AS pop,
-------------------------------------------setup foreign keys---------------------------------------------------------------------------------------------------
'ALTER TABLE fc.live ADD CONSTRAINT fk_'||func||' FOREIGN KEY ('||string_agg(format('%I',cname),', ') FILTER (WHERE fkey = func)||') REFERENCES fc.'||func||' ('||
string_agg(format('%I',cname),', ') FILTER (WHERE fkey = func)||')' AS fk
'ALTER TABLE '||tm.schema||'.'||tm.tname||' ADD CONSTRAINT fk_'||func||' FOREIGN KEY ('||string_agg(format('%I',cname),', ') FILTER (WHERE COALESCE(fkey,'') <> '')||') REFERENCES fc.'||func||' ('||
string_agg(format('%I',cname),', ') FILTER (WHERE COALESCE(fkey,'') <>'')||')' AS fk
FROM
fc.target_meta
fc.target_meta tm
WHERE
func IS NOT NULL
GROUP BY
tname
schema
,tname
,func
HAVING
string_agg(cname,', ') FILTER (WHERE fkey = func) <> ''
--HAVING
-- string_agg(cname,', ') FILTER (WHERE fkey = func) <> ''
loop
INSERT INTO fc.sql SELECT f.func, f.ddl;
EXECUTE format('%s',f.ddl);
EXECUTE format('%s',f.pop);
EXECUTE format('%s',f.fk);
END LOOP;
-------add a version column if one doesn't exist--------------------------------
IF (SELECT COUNT(*) FROM fc.target_meta WHERE appcol = 'version') = 0 THEN
SELECT 'ALTER TABLE '||_target_table||' ADD COLUMN app_version text' INTO _sql;
EXECUTE format('%s',_sql);
--insert the newly created row meta into target_meta
INSERT INTO
fc.target_meta
SELECT
table_schema, table_name, column_name, ordinal_position, null::text, null::text, null::text, data_type, 'version', null::text
FROM
information_schema.columns
WHERE
format('%I',table_schema)||'.'||format('%I',table_name) = _target_table
AND column_name = 'app_version';
END IF;
-------add a iter column if one doesn't exist--------------------------------
IF (SELECT COUNT(*) FROM fc.target_meta WHERE appcol = 'iter') = 0 THEN
SELECT 'ALTER TABLE '||_target_table||' ADD COLUMN app_iter text' INTO _sql;
EXECUTE format('%s',_sql);
--insert the newly created row meta into target_meta
INSERT INTO
fc.target_meta
SELECT
table_schema, table_name, column_name, ordinal_position, null::text, null::text, null::text, data_type, 'iter', null::text
FROM
information_schema.columns
WHERE
format('%I',table_schema)||'.'||format('%I',table_name) = _target_table
AND column_name = 'app_iter';
END IF;
-------add a logid column if one doesn't exist--------------------------------
IF (SELECT COUNT(*) FROM fc.target_meta WHERE appcol = 'logid') = 0 THEN
SELECT 'ALTER TABLE '||_target_table||' ADD COLUMN app_logid text' INTO _sql;
EXECUTE format('%s',_sql);
--insert the newly created row meta into target_meta
INSERT INTO
fc.target_meta
SELECT
table_schema, table_name, column_name, ordinal_position, null::text, null::text, null::text, data_type, 'logid', null::text
FROM
information_schema.columns
WHERE
format('%I',table_schema)||'.'||format('%I',table_name) = _target_table
AND column_name = 'app_logid';
END IF;
END;
$$

34
setup_sql/mapping.md
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@ -1,21 +1,23 @@
| tname | cname | opos | func | fkey | pretty | dtype | mastcol | appcol | dateref |
| ------- | -------------- | ---- | ------------ | ------------ | ------ | ------- | -------------- | ------------ | ------- |
| fc.live | fb_cst_loc | 91 | cost | | | numeric | fb_cst_loc | | |
| fc.live | ship_cust | 36 | scust | scust | | text | ship_cust | | |
| fc.live | rdate | 98 | rdate | rdate | | date | drange | | |
| fc.live | geo | 42 | scust | | | text | geo | customer | |
| fc.live | part | 54 | item | item | | text | part | item | |
| fc.live | odate | 96 | odate | odate | | date | drange | order_date | |
| fc.live | sdate | 100 | sdate | sdate | | date | sdate | ship_date | |
| fc.live | oseas | 97 | odate | | | integer | ssyr | | ssyr |
| fc.live | calc_status | 94 | order_status | order_status | | text | calc_status | order_status | |
| fc.live | rseas | 99 | rdate | | | integer | ssyr | | ssyr |
| fc.live | sseas | 101 | sdate | | | integer | ssyr | | ssyr |
| schema | tname | cname | opos | func | fkey | fcol | dtype | appcol | pretty |
| ------- | ------- | -------------- | ---- | ------------ | ------------ | -------------- | ------- | ------------ | ------ |
| fc | live | fb_cst_loc | 91 | cost | | fb_cst_loc | numeric | | |
| fc | live | ship_cust | 36 | scust | scust | ship_cust | text | | |
| fc | live | rdate | 98 | rdate | rdate | drange | date | | |
| fc | live | geo | 42 | scust | | geo | text | customer | |
| fc | live | part | 54 | item | item | part | text | item | |
| fc | live | odate | 96 | odate | odate | drange | date | order_date | |
| fc | live | sdate | 100 | sdate | sdate | sdate | date | ship_date | |
| fc | live | oseas | 97 | odate | | ssyr | integer | | |
| fc | live | calc_status | 94 | order_status | order_status | calc_status | text | order_status | |
| fc | live | rseas | 99 | rdate | | ssyr | integer | | |
| fc | live | sseas | 101 | sdate | | ssyr | integer | | |
| | | | | | | | | version | |
| | | | | | | | | iter | |
| | | | | | | | | logid | |
* func: table name of associated data
* fkey: primary key of assoicated dat
* pretty: display column name
* mastcol: associated table column reference (whats the point of this?)
* fcol: associated field from the master data table if it is different (oseas would refer to ssyr in fc.perd)
* pretty: display column name (user friendly)
* appcol: parameters that will have to be supplied but the application
* dateref:

18
setup_sql/schema.sql
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@ -2,32 +2,32 @@ CREATE SCHEMA IF NOT EXISTS fc;
--DROP TABLE IF EXISTS fc.target_meta;
CREATE TABLE IF NOT EXISTS fc.target_meta (
tname text
schema text
,tname text
,cname text
,opos int
,func text
,fkey text
,pretty text
,fcol text
,dtype text
,mastcol text
,appcol text
,dateref text
,pretty 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);
ALTER TABLE fc.target_meta ADD CONSTRAINT target_meta_pk PRIMARY KEY (schema, 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.schema IS 'schema of target sales data table';
COMMENT ON COLUMN fc.target_meta.tname IS '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.fcol 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.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)';
COMMENT ON COLUMN fc.target_meta.dateref IS 'reference to the relevant hard coded perd table column for dates';
COMMENT ON COLUMN fc.target_meta.pretty IS 'the presentation name of the column';
CREATE TABLE IF NOT EXISTS fc.log (
id int GENERATED ALWAYS AS IDENTITY

12
setup_sql/target_info.sql
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@ -3,18 +3,20 @@ BEGIN;
INSERT INTO
fc.target_meta
SELECT
table_schema||'.'||table_name
table_schema
,table_name
,column_name
,ordinal_position
,'doc'::text func
,null::text func
,null::text fkey --foreign key to a master table
,null::text pretty
,column_name fcol
,data_type::text dtype
,column_name mastcol
,null::text appcol
,null::text pretty
FROM
information_schema.columns
WHERE
table_name = 'live'
table_name = 'dcard_mapped'
AND table_schema = 'fc'
ON CONFLICT ON CONSTRAINT target_meta_pk DO UPDATE SET
opos = EXCLUDED.opos