{"record":{"id":"d7c9b618f3a7d45c","repo":"nautechsystems/nautilus_trader","slug":"failed-to-batch-insert-into-pool-tick-table-e","errorCode":null,"errorMessage":"Failed to batch insert into pool_tick table: {e}","messagePattern":"Failed to batch insert into pool_tick table: (.+?)","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"crates/adapters/blockchain/src/cache/database.rs","lineNumber":2314,"sourceCode":"                last_updated_block = EXCLUDED.last_updated_block\n           \",\n        )\n        .bind(chain_id as i32)\n        .bind(snapshot_block as i64)\n        .bind(snapshot_transaction_index as i32)\n        .bind(snapshot_log_index as i32)\n        .bind(&pool_identifiers[..])\n        .bind(&tick_values[..])\n        .bind(&liquidity_grosses[..])\n        .bind(&liquidity_nets[..])\n        .bind(&fee_growth_outside_0s[..])\n        .bind(&fee_growth_outside_1s[..])\n        .bind(&initializeds[..])\n        .bind(&last_updated_blocks[..])\n        .execute(&self.pool)\n        .await\n        .map(|_| ())\n        .map_err(|e| anyhow::anyhow!(\"Failed to batch insert into pool_tick table: {e}\"))\n    }\n\n    /// Updates the initial price and tick for a pool.\n    ///\n    /// # Errors\n    ///\n    /// Returns an error if the database update fails.\n    pub async fn update_pool_initial_price_tick(\n        &self,\n        chain_id: u32,\n        initialize_event: &InitializeEvent,\n    ) -> anyhow::Result<()> {\n        sqlx::query(\n            \"\n            UPDATE pool\n            SET\n                initial_tick = $4,\n                initial_sqrt_price_x96 = $5","sourceCodeStart":2296,"sourceCodeEnd":2332,"githubUrl":"https://github.com/nautechsystems/nautilus_trader/blob/18893faf8b356be3320add8de2f861b0b647cf06/crates/adapters/blockchain/src/cache/database.rs#L2296-L2332","documentation":"Raised when a batched UNNEST INSERT of pool ticks (fee-growth-outside values, initialized flags, last-updated blocks) into the `pool_tick` table fails. The sqlx execution error is wrapped with this message; the tick batch is not persisted.","triggerScenarios":"Executing the batch tick insert (`.bind(&fee_growth_outside_1s[..])`, `.bind(&initializeds[..])`, `.bind(&last_updated_blocks[..])`, `.execute(&self.pool)`) when Postgres rejects it: PK/unique conflict on (pool, tick_idx), type mismatch on growth values, array-length mismatch, or connection loss.","commonSituations":"Re-inserting ticks already stored from a prior snapshot (unique conflicts); u256-formatted growth strings not fitting numeric columns; missing migrations; dropped connections during long indexing batches.","solutions":["Read the `{e}` suffix for the exact sqlx/PostgreSQL error","Use ON CONFLICT (pool_identifier, tick_idx) DO UPDATE for idempotent tick upserts","Ensure all bound arrays have equal lengths","Run migrations to align the pool_tick schema","Check connectivity/pool health and retry transient failures"],"exampleFix":"// before\n.map_err(|e| anyhow::anyhow!(\"Failed to batch insert into pool_tick table: {e}\"))\n// after: upsert for idempotency and add context\n// INSERT ... ON CONFLICT (pool_identifier, tick_idx) DO UPDATE SET ...\n.map_err(|e| anyhow::anyhow!(\"Failed to batch insert into pool_tick table (rows={}): {e}\", tick_idxs.len()))","handlingStrategy":"try-catch","validationCode":"fn validate_tick_batch(ticks: &[PoolTick]) -> anyhow::Result<()> {\n    anyhow::ensure!(!ticks.is_empty(), \"empty tick batch\");\n    anyhow::ensure!(ticks.iter().all(|t| t.last_updated_block > 0), \"invalid block\");\n    Ok(())\n}","typeGuard":"fn is_initialized_tick(t: &PoolTick) -> bool { t.initialized }","tryCatchPattern":"if let Err(e) = insert_pool_ticks(&ticks).await {\n    if e.to_string().contains(\"duplicate key\") {\n        tracing::debug!(\"ticks already present, upserting\");\n        upsert_pool_ticks(&ticks).await?;\n    } else { return Err(e.into()); }\n}","preventionTips":["Upsert ticks keyed on (pool_identifier, tick_idx)","Keep growth-value strings within numeric column precision","Equal-length arrays for all UNNEST binds","Refresh stale connections before very large tick batches"],"tags":["database","postgres","sqlx","batch-insert"],"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"}