diff options
Diffstat (limited to 'src/exchangedb')
| -rw-r--r-- | src/exchangedb/exchange-0001.sql | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/exchangedb/exchange-0001.sql b/src/exchangedb/exchange-0001.sql index 8ee5d0e06..1f7e005ea 100644 --- a/src/exchangedb/exchange-0001.sql +++ b/src/exchangedb/exchange-0001.sql @@ -341,10 +341,12 @@ COMMENT ON TABLE wire_out CREATE TABLE IF NOT EXISTS aggregation_tracking (aggregation_serial_id BIGSERIAL UNIQUE ,deposit_serial_id INT8 PRIMARY KEY REFERENCES deposits (deposit_serial_id) ON DELETE CASCADE - ,wtid_raw BYTEA CONSTRAINT wire_out_ref REFERENCES wire_out(wtid_raw) ON DELETE CASCADE DEFERRABLE + ,wtid_raw BYTEA CONSTRAINT wire_out_ref REFERENCES wire_out(wtid_raw) ON DELETE CASCADE DEFERRABLE ); COMMENT ON TABLE aggregation_tracking IS 'mapping from wire transfer identifiers (WTID) to deposits (and back)'; +COMMENT ON COLUMN aggregation_tracking.wtid_raw + IS 'We first create entries in the aggregation_tracking table and then finally the wire_out entry once we know the total amount. Hence the constraint must be deferrable and we cannot use a wireout_uuid here, because we do not have it when these rows are created. Changing the logic to first INSERT a dummy row into wire_out and then UPDATEing that row in the same transaction would theoretically reduce per-deposit storage costs by 5 percent (24/~460 bytes).'; CREATE INDEX IF NOT EXISTS aggregation_tracking_wtid_index ON aggregation_tracking |