From cc244ee9f775a7517fd37e327ce9b9fdf10a5277 Mon Sep 17 00:00:00 2001 From: Paul Trowbridge Date: Sun, 4 Mar 2018 23:57:59 -0500 Subject: [PATCH] initial trigger work --- triggers/trans_insert.sql | 229 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 229 insertions(+) create mode 100644 triggers/trans_insert.sql diff --git a/triggers/trans_insert.sql b/triggers/trans_insert.sql new file mode 100644 index 0000000..9cae932 --- /dev/null +++ b/triggers/trans_insert.sql @@ -0,0 +1,229 @@ +CREATE OR REPLACE FUNCTION tps.trans_insert_map() RETURNS TRIGGER AS $f$ + BEGIN + IF (TG_OP = 'INSERT') THEN + WITH + --------------------apply regex operations to transactions----------------------------------------------------------------------------------- + + rx AS ( + SELECT + t.srce, + t.id, + t.rec, + m.target, + m.seq, + regex->>'function' regex_function, + e.v ->> 'field' result_key_name, + e.v ->> 'key' target_json_path, + e.v ->> 'flag' regex_options_flag, + e.v->>'map' map_intention, + e.v->>'retain' retain_result, + e.v->>'regex' regex_expression, + e.rn target_item_number, + COALESCE(mt.rn,rp.rn,1) result_number, + mt.mt rx_match, + rp.rp rx_replace, + CASE e.v->>'map' + WHEN 'y' THEN + e.v->>'field' + ELSE + null + END map_key, + CASE e.v->>'map' + WHEN 'y' THEN + CASE regex->>'function' + WHEN 'extract' THEN + CASE WHEN array_upper(mt.mt,1)=1 + THEN to_json(mt.mt[1]) + ELSE array_to_json(mt.mt) + END::jsonb + WHEN 'replace' THEN + to_jsonb(rp.rp) + ELSE + '{}'::jsonb + END + ELSE + NULL + END map_val, + CASE e.v->>'retain' + WHEN 'y' THEN + e.v->>'field' + ELSE + NULL + END retain_key, + CASE e.v->>'retain' + WHEN 'y' THEN + CASE regex->>'function' + WHEN 'extract' THEN + CASE WHEN array_upper(mt.mt,1)=1 + THEN to_json(trim(mt.mt[1])) + ELSE array_to_json(mt.mt) + END::jsonb + WHEN 'replace' THEN + to_jsonb(rtrim(rp.rp)) + ELSE + '{}'::jsonb + END + ELSE + NULL + END retain_val + FROM + tps.map_rm m + LEFT JOIN LATERAL jsonb_array_elements(m.regex->'where') w(v) ON TRUE + INNER JOIN new_table t ON + t.srce = m.srce AND + t.rec @> w.v + LEFT JOIN LATERAL jsonb_array_elements(m.regex->'defn') WITH ORDINALITY e(v, rn) ON true + LEFT JOIN LATERAL regexp_matches(t.rec #>> ((e.v ->> 'key')::text[]), e.v ->> 'regex'::text,COALESCE(e.v ->> 'flag','')) WITH ORDINALITY mt(mt, rn) ON + m.regex->>'function' = 'extract' + LEFT JOIN LATERAL regexp_replace(t.rec #>> ((e.v ->> 'key')::text[]), e.v ->> 'regex'::text, e.v ->> 'replace'::text,e.v ->> 'flag') WITH ORDINALITY rp(rp, rn) ON + m.regex->>'function' = 'replace' + ORDER BY + t.id DESC, + m.target, + e.rn, + COALESCE(mt.rn,rp.rn,1) + ) + + --SELECT count(*) FROM rx LIMIT 100 + + + , agg_to_target_items AS ( + SELECT + srce + ,id + ,target + ,seq + ,map_intention + ,regex_function + ,target_item_number + ,result_key_name + ,target_json_path + ,CASE WHEN map_key IS NULL + THEN + NULL + ELSE + jsonb_build_object( + map_key, + CASE WHEN max(result_number) = 1 + THEN + jsonb_agg(map_val ORDER BY result_number) -> 0 + ELSE + jsonb_agg(map_val ORDER BY result_number) + END + ) + END map_val + ,CASE WHEN retain_key IS NULL + THEN + NULL + ELSE + jsonb_build_object( + retain_key, + CASE WHEN max(result_number) = 1 + THEN + jsonb_agg(retain_val ORDER BY result_number) -> 0 + ELSE + jsonb_agg(retain_val ORDER BY result_number) + END + ) + END retain_val + FROM + rx + GROUP BY + srce + ,id + ,target + ,seq + ,map_intention + ,regex_function + ,target_item_number + ,result_key_name + ,target_json_path + ,map_key + ,retain_key + ) + + --SELECT * FROM agg_to_target_items LIMIT 100 + + + , agg_to_target AS ( + SELECT + srce + ,id + ,target + ,seq + ,map_intention + ,tps.jsonb_concat_obj(COALESCE(map_val,'{}'::JSONB)) map_val + ,jsonb_strip_nulls(tps.jsonb_concat_obj(COALESCE(retain_val,'{}'::JSONB))) retain_val + FROM + agg_to_target_items + GROUP BY + srce + ,id + ,target + ,seq + ,map_intention + ORDER BY + id + ) + + + --SELECT * FROM agg_to_target + + + , link_map AS ( + SELECT + a.srce + ,a.id + ,a.target + ,a.seq + ,a.map_intention + ,a.map_val + ,a.retain_val retain_value + ,v.map + FROM + agg_to_target a + LEFT OUTER JOIN tps.map_rv v ON + v.srce = a.srce AND + v.target = a.target AND + v.retval = a.map_val + ) + + --SELECT * FROM link_map + + , agg_to_id AS ( + SELECT + srce + ,id + ,tps.jsonb_concat_obj(COALESCE(retain_value,'{}'::jsonb) ORDER BY seq DESC) retain_val + ,tps.jsonb_concat_obj(COALESCE(map,'{}'::jsonb)) map + FROM + link_map + GROUP BY + srce + ,id + ) + + --SELECT agg_to_id.srce, agg_to_id.id, jsonb_pretty(agg_to_id.retain_val) , jsonb_pretty(agg_to_id.map) FROM agg_to_id ORDER BY id desc LIMIT 100 + + + + UPDATE + tps.trans t + SET + map = o.map, + parse = o.retain_val, + allj = t.rec||o.map||o.retain_val + FROM + agg_to_id o + WHERE + o.id = t.id; + + END IF; + RETURN NULL; + END; +$f$ LANGUAGE plpgsql; + +CREATE TRIGGER trans_insert + AFTER INSERT ON tps.trans + REFERENCING NEW TABLE AS new_table + FOR EACH STATEMENT EXECUTE PROCEDURE tps.trans_insert_map();