influxdata/influxdb · error · Error

datafusion error

Error message

datafusion error: {0}

What it means

This variant wraps a DataFusionError that occurred while the HTTP API executed a query (SQL or InfluxQL) against the query engine. DataFusion is the underlying query engine of InfluxDB3, and any planning, parsing, or execution failure inside it surfaces here as `datafusion error: {0}`. It is a transparent wrapper: the inner DataFusion message carries the real diagnostic.

Solutions

1. Read the inner DataFusion message after `datafusion error: ` for the actual cause (parse, column, or type error).
2. Verify table and column names against the server schema (e.g. SHOW TABLES / information_schema).
3. Validate the SQL syntax against DataFusion-supported SQL; simplify the query to isolate the failing clause.
4. Confirm field types have not changed; cast explicitly in SQL when mixing types.

Example fix

// before
SELECT tempature FROM home
// after
SELECT temperature FROM home

// validate SQL offline: check table/column names against information_schema before querying
const tables = await fetch(`${host}/api/v3/query_sql?q=SHOW TABLES`);

function isDatafusionError(e: unknown): e is { message: string } {
  return e instanceof Error && e.message.startsWith('datafusion error: ');
}

try { await query(sql); } catch (e) { if (isDatafusionError(e)) log(e.message.replace('datafusion error: ', '')); else throw e; }

When it happens

Trigger: Calling the /query or /api/v3/query_sql HTTP endpoints with SQL that fails to parse, references non-existent tables/columns, uses unsupported functions, or fails type coercion during DataFusion execution.

Common situations: Typo'd table or column names in SQL; querying a measurement with the wrong field type after a schema change; using DataFusion-incompatible syntax; querying before data was written.

Understand the failure class

Background: Database query failed: Internal Server Error 500s wrapping SQL, Prisma, and connection failures — what to check first — this error's family across 16 libraries.

Related errors

• datafusion error
• error while planning query
• Cannot query: (query: )
• Cannot retrieve database
• datafusion error

AI-assisted analysis of influxdata/influxdb@06200ef96b (2026-09-19). Data as JSON: /api/errors/babb56a7ef6203c5. Report an issue: GitHub.

Appendix: source

Thrown at influxdb3_server/src/http.rs:314

    WriteBuffer(#[from] influxdb3_write::write_buffer::Error),

    /// Persister error
    #[error("persister error: {0}")]
    Persister(#[from] influxdb3_write::persister::PersisterError),

    // ToStrError
    #[error("to str error: {0}")]
    ToStr(#[from] hyper::header::ToStrError),

    // SerdeJsonError
    #[error("serde json error: {0}")]
    SerdeJson(#[from] serde_json::Error),

    // Influxdb3 Write
    #[error("serde json error: {0}")]
    Influxdb3Write(#[from] influxdb3_write::Error),

    #[error("datafusion error: {0}")]
    Datafusion(#[from] DataFusionError),

    #[error("io error: {0}")]
    Io(#[from] std::io::Error),

    #[error("query error: {0}")]
    Query(#[from] QueryExecutorError),

    #[error(transparent)]
    DbName(#[from] ValidateDbNameError),

    #[error("partial write of line protocol occurred")]
    PartialLpWrite(BufferedWriteRequest),

    #[error("error in InfluxQL statement: {0}")]
    InfluxqlRewrite(#[from] rewrite::Error),

    #[error("must provide only one InfluxQl statement per query")]

View on GitHub (pinned to 06200ef96b)