{"record":{"id":"ddb544c6bf8fee54","repo":"nautechsystems/nautilus_trader","slug":"failed-to-update-pool-initial-price-and-tick-e","errorCode":null,"errorMessage":"Failed to update pool initial price and tick: {e}","messagePattern":"Failed to update pool initial price and tick: (.+?)","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"crates/adapters/blockchain/src/cache/database.rs","lineNumber":2346,"sourceCode":"            \"\n            UPDATE pool\n            SET\n                initial_tick = $4,\n                initial_sqrt_price_x96 = $5\n            WHERE chain_id = $1\n            AND dex_name = $2\n            AND pool_identifier = $3\n            \",\n        )\n        .bind(chain_id as i32)\n        .bind(initialize_event.dex.name.to_string())\n        .bind(initialize_event.pool_identifier.as_ref())\n        .bind(initialize_event.tick)\n        .bind(initialize_event.sqrt_price_x96.to_string())\n        .execute(&self.pool)\n        .await\n        .map(|_| ())\n        .map_err(|e| anyhow::anyhow!(\"Failed to update pool initial price and tick: {e}\"))\n    }\n\n    /// Loads the latest usable pool snapshot from the database.\n    ///\n    /// Returns the most recent snapshot usable as a replay start point: on-chain validated or\n    /// replay-derived. Snapshots that failed on-chain validation are excluded.\n    ///\n    /// # Errors\n    ///\n    /// Returns an error if the database query fails.\n    pub async fn load_latest_valid_pool_snapshot(\n        &self,\n        chain_id: u32,\n        pool_identifier: &PoolIdentifier,\n    ) -> anyhow::Result<Option<PoolSnapshot>> {\n        self.load_latest_pool_snapshot(chain_id, pool_identifier, None, true)\n            .await\n    }","sourceCodeStart":2328,"sourceCodeEnd":2364,"githubUrl":"https://github.com/nautechsystems/nautilus_trader/blob/18893faf8b356be3320add8de2f861b0b647cf06/crates/adapters/blockchain/src/cache/database.rs#L2328-L2364","documentation":"Raised when an UPDATE setting a pool's initial price and tick (from an initialize event: tick and sqrt_price_x96 as a string) fails at `.execute`. The sqlx error is wrapped with this message. If the pool row does not exist, the UPDATE affects zero rows silently (this error fires only on a driver failure, not on zero rows affected).","triggerScenarios":"Calling the update-pool-initial-price-and-tick method when Postgres errors on the statement: the target pool row is missing (no error but no update), sqrt_price_x96 string does not fit the numeric column, FK/connection issues, or schema drift.","commonSituations":"Initialize events arriving before the pool row is inserted (ordering bug); sqrt_price_x96 exceeding numeric precision; stale connections after failover; migrations not applied in the environment.","solutions":["Read the `{e}` tail for the exact sqlx/PostgreSQL error","Ensure the pool row is inserted before its initialize event is applied","Verify sqrt_price_x96 fits the column's numeric precision and is bound as text for a numeric column","Run pending migrations and check connection health","Consider checking rows_affected and erroring/warning when the pool row is absent"],"exampleFix":"// before\n.map_err(|e| anyhow::anyhow!(\"Failed to update pool initial price and tick: {e}\"))\n// after: detect no-op updates on missing pool row\nlet rows = query.execute(&self.pool).await\n    .map_err(|e| anyhow::anyhow!(\"Failed to update pool initial price and tick: {e}\"))?;\nif rows.rows_affected() == 0 {\n    tracing::warn!(pool = %initialize_event.pool_identifier.as_ref().unwrap(), \"initialize update matched no pool row\");\n}","handlingStrategy":"validation","validationCode":"fn validate_initialize_event(event: &PoolInitializeEvent) -> anyhow::Result<()> {\n    anyhow::ensure!(event.pool_identifier.is_some(), \"missing pool_identifier\");\n    anyhow::ensure!(!event.sqrt_price_x96.to_string().is_empty(), \"missing sqrt_price_x96\");\n    Ok(())\n}","typeGuard":"fn has_pool_identifier(e: &PoolInitializeEvent) -> bool { e.pool_identifier.is_some() }","tryCatchPattern":"match update_pool_initial_price_and_tick(&event).await {\n    Ok(()) => {},\n    Err(e) => {\n        tracing::error!(\"initialize update failed: {e:#}\");\n        ensure_pool_row(event.pool_identifier.as_ref().unwrap()).await?;\n        update_pool_initial_price_and_tick(&event).await?;\n    }\n}","preventionTips":["Guarantee pool rows exist before applying initialize events","Verify sqrt_price_x96 fits the numeric column precision","Check rows_affected to detect no-op updates on missing rows","Keep migrations applied in every environment"],"tags":["database","postgres","sqlx","update"],"backgroundTag":"database-write-failed","analyzedSha":"18893faf8b356be3320add8de2f861b0b647cf06","analyzedAt":"2026-09-08T20:49:34.690Z","contentChangedAt":"2026-09-08T20:49:34.690Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}