107 lines
3.0 KiB
PL/PgSQL
107 lines
3.0 KiB
PL/PgSQL
DO $$
|
|
|
|
DECLARE _t text;
|
|
DECLARE _c text;
|
|
|
|
BEGIN
|
|
|
|
----------------------------------------------------build the column list of the temp table----------------------------------------------------------------
|
|
|
|
SELECT
|
|
string_agg(quote_ident(prs.key)||' '||prs.type,','),
|
|
string_agg(quote_ident(prs.key),',')
|
|
INTO
|
|
_t,
|
|
_c
|
|
FROM
|
|
TPS.srce
|
|
--unwrap the schema definition array
|
|
LEFT JOIN LATERAL jsonb_populate_recordset(null::tps.srce_defn_schema, defn->'schema') prs ON TRUE
|
|
WHERE
|
|
srce = 'DCARD'
|
|
GROUP BY
|
|
srce;
|
|
|
|
----------------------------------------------------add create table verbage in front of column list--------------------------------------------------------
|
|
|
|
_t := format('CREATE TEMP TABLE csv_i (%s, id SERIAL)', _t);
|
|
--RAISE NOTICE '%', _t;
|
|
--RAISE NOTICE '%', _c;
|
|
|
|
DROP TABLE IF EXISTS csv_i;
|
|
|
|
EXECUTE _t;
|
|
|
|
----------------------------------------------------do the insert-------------------------------------------------------------------------------------------
|
|
|
|
--the column list needs to be dynamic forcing this whole line to be dynamic
|
|
_t := format('COPY csv_i (%s) FROM ''C:\Users\fleet\downloads\dc.csv'' WITH (HEADER TRUE,DELIMITER '','', FORMAT CSV, ENCODING ''SQL_ASCII'',QUOTE ''"'');',_c);
|
|
|
|
--RAISE NOTICE '%', _t;
|
|
|
|
EXECUTE _t;
|
|
|
|
|
|
END
|
|
$$;
|
|
|
|
--*******************************************
|
|
--this needs to aggregate on id sequence
|
|
--*******************************************
|
|
WITH pending_list AS (
|
|
SELECT
|
|
---creates a key value pair and then aggregates rows of key value pairs
|
|
jsonb_object_agg(
|
|
(ae.e::text[])[1], --the key name
|
|
(row_to_json(i)::jsonb) #> ae.e::text[] --get the target value from the key from the csv row that has been converted to json
|
|
) json_key,
|
|
row_to_json(i)::JSONB rec,
|
|
srce,
|
|
--ae.rn,
|
|
id
|
|
FROM
|
|
csv_i i
|
|
INNER JOIN tps.srce s ON
|
|
s.srce = 'DCARD'
|
|
LEFT JOIN LATERAL JSONB_ARRAY_ELEMENTS_TEXT(defn->'unique_constraint'->'fields') WITH ORDINALITY ae(e, rn) ON TRUE
|
|
GROUP BY
|
|
i.*,
|
|
srce,
|
|
id
|
|
ORDER BY
|
|
id
|
|
)
|
|
------results of an insert operation--------------
|
|
, inserted AS (
|
|
INSERT INTO
|
|
tps.trans (srce, rec)
|
|
SELECT
|
|
pl.srce
|
|
,pl.rec
|
|
FROM
|
|
pending_list pl
|
|
LEFT JOIN tps.trans t ON
|
|
t.srce = pl.srce
|
|
AND t.rec @> pl.json_key
|
|
WHERE
|
|
t IS NULL
|
|
----this conflict is only if an exact duplicate rec json happens, which will be rejected
|
|
----therefore, records may not be inserted due to ay matches with certain json fields, or if the entire json is a duplicate, reason is not specified
|
|
ON CONFLICT ON CONSTRAINT uc_rec DO NOTHING
|
|
RETURNING *
|
|
)
|
|
|
|
----records not inserted------
|
|
SELECT
|
|
srce
|
|
,rec
|
|
FROM
|
|
pending_list
|
|
|
|
EXCEPT ALL
|
|
|
|
SELECT
|
|
srce
|
|
,rec
|
|
FROM
|
|
inserted; |