58fd9595d7
Migrate all 32-byte hash fields from TEXT (64-char hex) to BLOB (32 bytes) for ~50% storage savings on hash columns. Changes: - Add src/db/blob.rs with ToBlob/FromBlob traits for hash types - Update all table schemas to use BLOB for hash columns - Replace .to_hex() with .to_blob() for DB inserts - Replace ::from_hex() with ::from_blob() for DB reads - Use SQL hex() function where API responses need hex strings - Bump DB_VERSION from 4 to 5 Affected tables: tx, pool, pool_history_entry, utxo_spending, utxo_funding, user_action, auth_chain_entry, bcmr_data, bcmr_failure, bcmr_well_known, crc20, crc20_candidates, delphi_entry, cached_token_metrics Fixes #1
48 lines
1.5 KiB
Rust
48 lines
1.5 KiB
Rust
// Copyright (C) 2024-2026 Whiterun LLC
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//
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// This software is licensed under the GNU Affero General Public License (AGPL), version 3.0 or later.
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// A copy of the license can be found in the LICENSE file or at https://www.gnu.org/licenses/agpl-3.0.html
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use std::collections::HashSet;
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use anyhow::Result;
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use bitcoincash::Txid;
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use rusqlite::Connection;
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use crate::db::blob::{FromBlob, ToBlob};
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pub fn load_mempool(conn: &Connection) -> Result<HashSet<Txid>> {
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let mut stmt = conn.prepare("SELECT txid FROM tx WHERE blockhash is NULL")?;
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let txid_iter = stmt.query_map([], |row| row.get(0))?;
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let mut txids: HashSet<Txid> = HashSet::new();
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for txid_res in txid_iter {
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let txid_blob: Vec<u8> = txid_res?;
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let txid = Txid::from_blob(&txid_blob).expect("invalid txid in db");
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txids.insert(txid);
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}
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Ok(txids)
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}
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pub fn delete_mempool_txs<'a, I>(db_tx: &Connection, txids: I) -> Result<bool>
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where
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I: IntoIterator<Item = &'a Txid>,
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{
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let txid_blobs: Vec<Vec<u8>> = txids.into_iter().map(|txid| txid.to_blob()).collect();
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let placeholders = txid_blobs
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.iter()
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.map(|_| "?")
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.collect::<Vec<_>>()
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.join(", ");
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let query = format!("DELETE FROM tx WHERE txid IN ({placeholders}) AND blockhash is NULL");
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let params: Vec<&dyn rusqlite::ToSql> = txid_blobs
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.iter()
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.map(|s| s as &dyn rusqlite::ToSql)
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.collect();
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let mut stmt = db_tx.prepare(&query)?;
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let rows_deleted = stmt.execute(rusqlite::params_from_iter(params))?;
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Ok(rows_deleted != 0)
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}
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