influxdata/influxdb · error · QueryExecutorError

error while planning query

Error message

error while planning query: {0}

What it means

`QueryExecutorError::QueryPlanning` wraps a DataFusionError that occurred while building the DataFusion execution plan for a query. The message is "error while planning query: {0}" with the DataFusionError as the `#[source]`.

Solutions

  1. Read the wrapped DataFusionError in the source chain for the root cause
  2. Validate the SQL syntax and referenced table/column names
  3. Simplify the query (remove unsupported functions) and re-run
  4. Check compatibility of the query with the deployed InfluxDB 3 DataFusion version

Example fix

// before
SELECT MEAN(temperature) FROM weather GROUP BY BY(host)  // unsupported clause
// after
SELECT host, MEAN(temperature) FROM weather GROUP BY host
Defensive patterns

Strategy: try-catch

Validate before calling

// validate table/column references before planning
if !schema.fields.contains(field_name) {
    return Err(anyhow!("unknown field: {field_name}"));
}

Try / catch

// rust
match executor.query(db, sql).await {
    Err(QueryExecutorError::QueryPlanning(e)) => {
        eprintln!("SQL planning failed: {e}; check syntax and identifiers")
    }
    other => other?,
}

Prevention

When it happens

Trigger: Invalid SQL (syntax errors, unknown tables/columns, unsupported functions) submitted to the internal query executor; schema conflicts that prevent logical/physical plan construction.

Common situations: InfluxQL/SQL features unsupported by the DataFusion version in use; referencing a field/tag that doesn't exist; malformed time-range predicates; version upgrades changing accepted SQL.

Understand the failure class

Background: "query failed", "%w: SQL error" — wrapped database query errors in Go libraries explained — this error's family across 3 libraries.

Related errors

AI-assisted analysis of influxdata/influxdb@06200ef96b (2026-09-19). Data as JSON: /api/errors/445433a6e9413ef8. Report an issue: GitHub.

Appendix: source

Thrown at influxdb3_internal_api/src/query_executor.rs:27

use influxdb3_catalog::catalog::Catalog;
use iox_query::query_log::QueryLogEntries;
use iox_query::{QueryDatabase, QueryNamespace};
use iox_query_influxql::show_databases::{InfluxQlShowDatabases, generate_metadata};
use iox_query_influxql::show_retention_policies::InfluxQlShowRetentionPolicies;
use iox_query_params::StatementParams;
use schema::INFLUXQL_MEASUREMENT_COLUMN_NAME;
use std::fmt::Debug;
use std::sync::Arc;
use trace::ctx::SpanContext;
use trace::span::{Span, SpanExt};
use trace_http::ctx::RequestLogContext;
use tracker::InstrumentedAsyncOwnedSemaphorePermit;

#[derive(Debug, thiserror::Error)]
pub enum QueryExecutorError {
    #[error("database not found: {db_name}")]
    DatabaseNotFound { db_name: String },
    #[error("error while planning query: {0}")]
    QueryPlanning(#[source] DataFusionError),
    #[error("error while executing plan: {0}")]
    ExecuteStream(#[source] DataFusionError),
    #[error("unable to compose record batches from databases: {0}")]
    DatabasesToRecordBatch(#[source] ArrowError),
    #[error("unable to compose record batches from retention policies: {0}")]
    RetentionPoliciesToRecordBatch(#[source] ArrowError),
    #[error("invokded a method that is not implemented: {0}")]
    MethodNotImplemented(&'static str),
    #[error(transparent)]
    Anyhow(#[from] anyhow::Error),
}

#[async_trait]
pub trait QueryExecutor: QueryDatabase + Debug + Send + Sync + 'static {
    async fn get_db_namespace(
        &self,
        database_name: &str,

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