risingwavelabs/risingwave · critical · PsqlError

Panicked when handling the request

Error message

Panicked when handling the request: {0}
This is a bug. We would appreciate a bug report at:
  https://github.com/risingwavelabs/risingwave/issues/new?labels=type%2Fbug&template=bug_report.yml

What it means

Pgwire converts panics that occur while serving a client request into this variant so the connection handler can report them as a Postgres-style fatal error instead of crashing the process. The message explicitly tells the user it is an internal bug and links to the RisingWave issue tracker.

Solutions

1. Read the panic message in the `{0}` payload and the server log for the full backtrace.
2. Simplify/reproduce the triggering query or request and check for known issues on GitHub.
3. File a bug report at https://github.com/risingwavelabs/risingwave/issues/new?labels=type%2Fbug&template=bug_report.yml with the panic message and backtrace.
4. Upgrade to the latest RisingWave version where the panic may already be fixed.

match err {
    PsqlError::Panic(msg) => report_bug(msg),
    PsqlError::Uncategorized(src) => inspect(src),
    other => handle(other),
}

When it happens

Trigger: Any `panic!`/unwind inside the request-handling path caught by pgwire's catch_unwind wrapper and converted via `Panic(String)`; also any unmatched error converted through `Uncategorized(#[from] BoxedError)`.

Common situations: Hitting an unimplemented code path, an internal assertion, or a bug in a handler that panics on malformed or edge-case input.

Understand the failure class

Background: "This is a bug, please report it": internal invariant violations, unreachable panics, and SNH errors explained — this error's family across 47 libraries.

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AI-assisted analysis of risingwavelabs/risingwave@6469eb736d (2026-09-11). Data as JSON: /api/errors/a669e7438964ed61. Report an issue: GitHub.

Appendix: source

Thrown at src/utils/pgwire/src/error.rs:76

    #[error("Failed to execute the statement: {0}")]
    ExtendedExecuteError(
        #[source]
        #[backtrace]
        BoxedError,
    ),

    #[error(transparent)]
    IoError(#[from] IoError),

    /// Uncategorized error for describe, bind.
    #[error(transparent)]
    Uncategorized(
        #[from]
        #[backtrace]
        BoxedError,
    ),

    #[error("Panicked when handling the request: {0}
This is a bug. We would appreciate a bug report at:
  https://github.com/risingwavelabs/risingwave/issues/new?labels=type%2Fbug&template=bug_report.yml")]
    Panic(String),

    #[error("Unable to setup an SSL connection")]
    SslError(#[from] openssl::ssl::Error),

    #[error("terminating connection due to idle-in-transaction timeout")]
    IdleInTxnTimeout,

    #[error("Server throttled: {0}")]
    ServerThrottle(String),
}

#[derive(Debug)]
pub struct ProtocolViolationError(String);

impl fmt::Display for ProtocolViolationError {

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