{"record":{"id":"a12710461e593dad","repo":"nautechsystems/nautilus_trader","slug":"failed-to-insert-into-position-table-e","errorCode":null,"errorMessage":"Failed to insert into position table: {e}","messagePattern":"Failed to insert into position table: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/infrastructure/src/sql/queries.rs","lineNumber":547,"sourceCode":"            .bind(snapshot.quote_currency.to_string())\n            .bind(snapshot.base_currency.map(|x| x.to_string()))\n            .bind(snapshot.settlement_currency.to_string())\n            .bind(snapshot.avg_px_open)\n            .bind(snapshot.avg_px_close)\n            .bind(snapshot.realized_return)\n            .bind(snapshot.realized_pnl.map(|x| x.to_string()))\n            .bind(snapshot.unrealized_pnl.map(|x| x.to_string()))\n            .bind(snapshot.commissions.iter().map(ToString::to_string).collect::<Vec<String>>())\n            .bind(snapshot.duration_ns.map(|x| x.to_string()))\n            .bind(snapshot.ts_opened.to_string())\n            .bind(snapshot.ts_closed.map(|x| x.to_string()))\n            .bind(snapshot.ts_init.to_string())\n            .bind(snapshot.ts_last.to_string())\n            .bind(snapshot.replay_state)\n            .execute(&mut *transaction)\n            .await\n            .map(|_| ())\n            .map_err(|e| anyhow::anyhow!(\"Failed to insert into position table: {e}\"))?;\n        transaction\n            .commit()\n            .await\n            .map_err(|e| anyhow::anyhow!(\"Failed to commit transaction: {e}\"))\n    }\n\n    /// Loads a `PositionSnapshot` entry by `position_id` via the provided `pool`.\n    ///\n    /// # Errors\n    ///\n    /// Returns an error if the SQL SELECT or deserialization fails.\n    pub async fn load_position_snapshot(\n        pool: &PgPool,\n        position_id: &PositionId,\n    ) -> anyhow::Result<Option<PositionSnapshot>> {\n        sqlx::query_as::<_, PositionSnapshotRow>(r#\"SELECT * FROM \"position\" WHERE id = $1\"#)\n            .bind(position_id.to_string())\n            .fetch_optional(pool)","sourceCodeStart":529,"sourceCodeEnd":565,"githubUrl":"https://github.com/nautechsystems/nautilus_trader/blob/18893faf8b356be3320add8de2f861b0b647cf06/crates/infrastructure/src/sql/queries.rs#L529-L565","documentation":"Raised by `add_position_snapshot` on the second step: the INSERT into the `\"position\"` table fails. The trader-table insert succeeded earlier in the transaction, but the pending transaction is rolled back, leaving the database unchanged. The sqlx error is wrapped in `anyhow` with this message.","triggerScenarios":"Calling `add_position_snapshot` when: the `\"position\"` table is missing; constraints on position_id / opening_order_id are violated; a numeric or enum-typed column rejects the bound string value; or a unique constraint is hit by a duplicate position snapshot.","commonSituations":"Re-running replay ingestion and re-writing existing position IDs; unmigrated schema; values like `realized_return` or `signed_qty` not matching column precision; crate and schema version mismatch causing bind/count errors.","solutions":["Read the wrapped `{e}` for the specific constraint or type mismatch.","Run migrations so the `\"position\"` table matches the crate's expectations.","Skip or upsert when the position_id already exists (check a prior snapshot load if available).","Confirm numeric fields serialize into columns with sufficient precision/type."],"exampleFix":"// before: duplicates crash ingestion batches\nfor snap in snapshots {\n    add_position_snapshot(&pool, &snap).await?;\n}\n\n// after: tolerate re-ingestion of the same position\nfor snap in snapshots {\n    if let Err(e) = add_position_snapshot(&pool, &snap).await {\n        if !format!(\"{e:#}\").contains(\"duplicate key\") { return Err(e); }\n    }\n}","handlingStrategy":"validation","validationCode":"// Skip positions that were already persisted (duplicate position_id)\nlet dup = sqlx::query_scalar::<_, i64>(\n    \"SELECT COUNT(*) FROM \\\"position\\\" WHERE id = $1\")\n    .bind(snapshot.id.to_string())\n    .fetch_one(pool).await? > 0;\nif dup { return Ok(()); }","typeGuard":null,"tryCatchPattern":"match add_position_snapshot(&pool, &snapshot).await {\n    Ok(()) => (),\n    Err(e) if format!(\"{e:#}\").contains(\"duplicate key\") => {\n        tracing::debug!(\"position {} already persisted\", snapshot.id);\n    }\n    Err(e) => return Err(e),\n}","preventionTips":["Make replay ingestion idempotent for position IDs.","Check numeric precision of realized_return/signed_qty against column types.","Keep crate and schema versions synchronized.","Validate position fields are non-null where the schema requires it."],"tags":["database","postgres","sqlx","transaction","rust"],"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"}