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-fix full refund deposit fee computation in aggregator

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Christian Grothoff 2022-07-09 12:14:20 +02:00
parent 45f43fcde7
commit 4e5193a21f
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GPG Key ID: 939E6BE1E29FC3CC
2 changed files with 28 additions and 6 deletions
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2
doc/prebuilt

@ -1 +1 @@
Subproject commit 1ed97b23f19c80fa84b21a5eb0c686d5491e8ec6
Subproject commit b988d98d4856758484eb23c27bfdc9e602d4235a

32
src/exchangedb/plugin_exchangedb_postgres.c
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@ -1778,10 +1778,31 @@ prepare_statements (struct PostgresClosure *pg)
" FROM refunds"
" WHERE coin_pub IN (SELECT coin_pub FROM dep)"
" AND deposit_serial_id IN (SELECT deposit_serial_id FROM dep))"
" ,fees AS (" /* find deposit fees for non-refunded deposits */
// FIXME: this is wrong, the deposit fee is waived IF the
// refunds were for 100% of the deposit value. This logic
// ignores this detail :-(.
" ,ref_by_coin AS (" /* total up refunds by coin */
" SELECT"
" SUM(refund_val) AS sum_refund_val"
" ,SUM(refund_frac) AS sum_refund_frac"
" ,coin_pub"
" ,deposit_serial_id" /* theoretically, coin could be in multiple refunded transactions */
" FROM ref"
" GROUP BY coin_pub, deposit_serial_id)"
" ,norm_ref_by_coin AS (" /* normalize */
" SELECT"
" sum_refund_val + sum_refund_frac / 100000000 AS norm_refund_val"
" ,sum_refund_frac % 100000000 AS norm_refund_frac"
" ,coin_pub"
" ,deposit_serial_id" /* theoretically, coin could be in multiple refunded transactions */
" FROM ref_by_coin)"
" ,fully_refunded_coins AS (" /* find applicable refunds -- NOTE: may do a full join on the master, maybe find a left-join way to integrate with query above to push it to the shards? */
" SELECT"
" dep.coin_pub"
" FROM norm_ref_by_coin norm"
" JOIN dep"
" ON (norm.coin_pub = dep.coin_pub"
" AND norm.deposit_serial_id = dep.deposit_Serial_id"
" AND norm.norm_refund_val = dep.amount_val"
" AND norm.norm_refund_frac = dep.amount_frac))"
" ,fees AS (" /* find deposit fees for not fully refunded deposits */
" SELECT"
" denom.fee_deposit_val AS fee_val"
" ,denom.fee_deposit_frac AS fee_frac"
@ -1790,7 +1811,8 @@ prepare_statements (struct PostgresClosure *pg)
" JOIN known_coins kc" /* NOTE: may do a full join on the master, maybe find a left-join way to integrate with query above to push it to the shards? */
" USING (coin_pub)"
" JOIN denominations denom"
" USING (denominations_serial))"
" USING (denominations_serial)"
" WHERE coin_pub NOT IN (SELECT coin_pub FROM fully_refunded_coins))"
" ,dummy AS (" /* add deposits to aggregation_tracking */
" INSERT INTO aggregation_tracking"
" (deposit_serial_id"