nautechsystems/nautilus_trader · error

Failed to insert into quote table: {e}

Error message

Failed to insert into quote table: {e}

What it means

Fired when the PostgreSQL upsert of a QuoteTick row into the quote table fails — e.g. connection failure, query execution error, or a constraint/type error from binding the instrument_id, bid/ask price and size, and timestamp values as strings. The write-and-on-conflict-update statement did not complete, so the quote was not persisted.

Source

Thrown at crates/infrastructure/src/sql/queries.rs:1313

                $1, $2, $3, $4, $5, $6, $7, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP
            )
            ON CONFLICT (id)
            DO UPDATE
            SET
                instrument_id = $1, bid_price = $2, ask_price = $3, bid_size = $4, ask_size = $5,
                ts_event = $6, ts_init = $7, updated_at = CURRENT_TIMESTAMP
        "#)
            .bind(quote.instrument_id.to_string())
            .bind(quote.bid_price.to_string())
            .bind(quote.ask_price.to_string())
            .bind(quote.bid_size.to_string())
            .bind(quote.ask_size.to_string())
            .bind(quote.ts_event.to_string())
            .bind(quote.ts_init.to_string())
            .execute(pool)
            .await
            .map(|_| ())
            .map_err(|e| anyhow::anyhow!("Failed to insert into quote table: {e}"))
    }

    /// Loads all `QuoteTick` entries for `instrument_id` via the provided `pool`.
    ///
    /// # Errors
    ///
    /// Returns an error if the SQL SELECT or deserialization fails.
    pub async fn load_quotes(
        pool: &PgPool,
        instrument_id: &InstrumentId,
    ) -> anyhow::Result<Vec<QuoteTick>> {
        sqlx::query_as::<_, QuoteTickRow>(
            r#"SELECT * FROM "quote" WHERE instrument_id = $1 ORDER BY ts_event ASC"#,
        )
        .bind(instrument_id.to_string())
        .fetch_all(pool)
        .await
        .map(|rows| rows.into_iter().map(|row| row.0).collect())

View on GitHub (pinned to 18893faf8b)

Solutions

1. Run migrations to create the `quote` table and enum types
2. Compare the bound quote fields against the current table schema and fix mismatched columns/types
3. Check the wrapped sqlx error for the concrete constraint or cast failure
4. Verify pool connectivity and consider batching inserts in a transaction

sqlx::query("SELECT 1 FROM quote LIMIT 1").fetch_optional(pool).await.map_err(|e| anyhow::anyhow!("quote table check: {e}"))?;

if let Err(e) = add_quote(&pool, &quote).await {
    tracing::error!("quote insert failed: {e:#}");
    return Err(e.into());
}

When it happens

Trigger: Calling `add_quote(pool, &quote)` when the `quote` table is missing (no migrations), a bind value cannot be cast to the Postgres column type, a constraint fails, or the connection/pool is broken.

Common situations: Schema drift after upgrades (e.g. bid_size/ask_size column changes); missing enum types; DB down or credentials wrong; inserting many quotes in a tight loop with pool exhaustion.

Related errors

• Failed to insert into trade table: {e}
• Error executing statement {sql_statement} with error: {e:?}
• Failed to insert into block table: {e}
• Failed to batch insert into block table: {e}
• Failed to batch insert into pool_event_block table: {e}

AI-assisted analysis of nautechsystems/nautilus_trader@18893faf8b (2026-09-08). Data as JSON: /api/errors/ec47b5c86a59ee42. Report an issue: GitHub.