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sweepbatcher: allow swap_hash to be non-unique

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SwapHash used to be a key in the sweeps table. Now the key is outpoint which
replaces columns outpoint_txid and outpoint_index. In-memory structures and unit
tests were also updated to use outpoint as key. Outpoint is truly unique.
This commit is contained in:
Boris Nagaev 2025-03-25 14:30:52 -03:00
parent c3fa12ef23
commit c80ebb96e9
No known key found for this signature in database
14 changed files with 318 additions and 212 deletions
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16
loopdb/postgres.go
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@ -64,6 +64,21 @@ type PostgresStore struct {
*BaseDB
}
// In migration of sweeps table from outpoint_txid and outpoint_index to
// outpoint we need to reverse the order of bytes in outpoint_txid and to
// convert it to hex. This is done differently in sqlite and postgres.
//
// Changes from sqlite to postgres:
// - substr(blob, ...) -> get_byte(blob, index)
// - group_concat -> string_agg
// - 1-based indexing (32+1-i) -> 0-based (32 - i)
// - to_hex() + lpad(..., 2, '0') ensures each byte is two-digit hex
const (
txidSqlite = "group_concat(hex(substr(outpoint_txid,32+1-i,1)),'')"
txidPostgres = "string_agg(lpad(to_hex(get_byte(outpoint_txid, " +
"32 - i)), 2, '0'), '')"
)
// NewPostgresStore creates a new store that is backed by a Postgres database
// backend.
func NewPostgresStore(cfg *PostgresConfig,
@ -93,6 +108,7 @@ func NewPostgresStore(cfg *PostgresConfig,
postgresFS := newReplacerFS(sqlSchemas, map[string]string{
"BLOB": "BYTEA",
"INTEGER PRIMARY KEY": "SERIAL PRIMARY KEY",
txidSqlite: txidPostgres,
})
err = applyMigrations(