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Code Pull Requests 2 Activity

remove column tx_contextid and use txId as primary key

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This commit is contained in:
Michael Hoennig 2024-08-27 08:48:41 +02:00
parent 36c21505a3
commit f973868bf9
1 changed files with 21 additions and 12 deletions
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31
src/main/resources/db/changelog/0-basis/020-audit-log.sql
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@ -23,8 +23,10 @@ do $$
*/
create table tx_context
(
contextId bigint primary key not null,
txId bigint not null,
-- FIXME: what whas the purpose of such a hash(task+txid)?
-- contextId bigint primary key not null,
-- txId bigint not null,
txId bigint primary key not null,
txTimestamp timestamp not null,
currentUser varchar(63) not null, -- not the uuid, because users can be deleted
assumedRoles varchar(1023) not null, -- not the uuids, because roles can be deleted
@ -43,7 +45,8 @@ create index on tx_context using brin (txTimestamp);
*/
create table tx_journal
(
contextId bigint not null references tx_context (contextId),
-- contextId bigint not null references tx_context (contextId), -- FIXME: this ...
txId bigint not null references tx_context (txId), -- FIXME: ... or that?
targetTable text not null,
targetUuid uuid not null, -- Assumes that all audited tables have a uuid column.
targetOp operation not null,
@ -62,7 +65,7 @@ create index on tx_journal (targetTable, targetUuid);
create view tx_journal_v as
select txc.*, txj.targettable, txj.targetop, txj.targetuuid, txj.targetdelta
from tx_journal txj
left join tx_context txc using (contextid)
left join tx_context txc using (txId) -- FIXME: or contextId?
order by txc.txtimestamp;
--//
@ -77,31 +80,37 @@ create or replace function tx_journal_trigger()
language plpgsql as $$
declare
curTask text;
curContextId bigint;
-- curContextId bigint; FIXME: needed?
curTxId bigint;
begin
curTask := currentTask();
curContextId := txid_current()+bigIntHash(curTask);
-- curContextId := txid_current()+bigIntHash(curTask); FIXME: needed?
curTxId := txid_current();
insert
into tx_context (contextId, txId, txTimestamp, currentUser, assumedRoles, currentTask, currentRequest)
values (curContextId, txid_current(), now(),
-- FIXME
-- into tx_context (contextId, txId, txTimestamp, currentUser, assumedRoles, currentTask, currentRequest)
-- values (curContextId, txid_current(), now(),
-- currentUser(), assumedRoles(), curTask, currentRequest())
into tx_context (txId, txTimestamp, currentUser, assumedRoles, currentTask, currentRequest)
values ( curTxId, now(),
currentUser(), assumedRoles(), curTask, currentRequest())
on conflict do nothing;
case tg_op
when 'INSERT' then insert
into tx_journal
values (curContextId,
values (curTxId, -- FIXME: curContextId?
tg_table_name, new.uuid, tg_op::operation,
to_jsonb(new));
when 'UPDATE' then insert
into tx_journal
values (curContextId,
values (curTxId, -- FIXME: curContextId?
tg_table_name, old.uuid, tg_op::operation,
jsonb_changes_delta(to_jsonb(old), to_jsonb(new)));
when 'DELETE' then insert
into tx_journal
values (curContextId,
values (curTxId, -- FIXME: curContextId?
tg_table_name, old.uuid, 'DELETE'::operation,
null::jsonb);
else raise exception 'Trigger op % not supported for %.', tg_op, tg_table_name;