risingwavelabs/risingwave · error · ErrorCode

Invalid insert operation: {0}

Error message

Invalid insert operation: {0}

What it means

RisingWave frontend's ErrorCode::InsertViolation variant, rendered as "Invalid insert operation: {0}". It is raised by the INSERT binder (src/frontend/src/binder/insert.rs:181) when the insert statement is structurally invalid — for example the number of supplied values/columns does not match the target table, or the insert form is unsupported for the target relation.

Source

Thrown at src/frontend/src/error.rs:159

    #[error("Protocol error: {0}")]
    ProtocolError(#[message] String),
    #[error("Scheduler error: {0}")]
    SchedulerError(
        #[source]
        #[backtrace]
        BoxedError,
    ),
    #[error("Task not found")]
    TaskNotFound,
    #[error("Session not found")]
    SessionNotFound,
    #[error("Invalid reference: {0}")]
    InvalidReference(String),
    #[error("Item not found: {0}")]
    ItemNotFound(String),
    #[error("Duplicate Relation Name: {0}")]
    DuplicateRelationName(String),
    #[error("Invalid insert operation: {0}")]
    InsertViolation(String),
    #[error("Invalid input syntax: {0}")]
    InvalidInputSyntax(#[message] String),
    #[error("Cannot compare in memory: {0}")]
    MemComparableError(#[from] memcomparable::Error),
    #[error("Error while de/se values: {0}")]
    ValueEncodingError(
        #[from]
        #[backtrace]
        ValueEncodingError,
    ),
    #[error("Invalid value `{config_value}` for `{config_entry}`")]
    InvalidConfigValue {
        config_entry: String,
        config_value: String,
    },
    #[error("Invalid parameter value: {0}")]
    InvalidParameterValue(String),

View on GitHub (pinned to 6469eb736d)

Solutions

1. Compare the INSERT column list and each VALUES row length against SHOW COLUMNS FROM <table>.
2. Either supply an explicit column list or pad/trim the VALUES to match the table's current schema.
3. Regenerate ORM entities after any ALTER TABLE on the target table.
4. Ensure the insert target is a plain table (not a source/materialized view) if the operation is unsupported.

Example fix

// before
INSERT INTO t VALUES (1); -- t has 2 columns
// after
INSERT INTO t VALUES (1, 'x'); -- matches column count

-- before INSERT
SELECT count(*) FROM information_schema.columns WHERE table_name = 't';
-- compare with number of columns in the INSERT statement

try { await db.insert(vals) } catch (e) {
  if (/Invalid insert operation:/.test(e.message)) { await syncSchema(); throw e; }
  throw e;
}

When it happens

Trigger: INSERT with a value list whose arity differs from the table's column count; column list in INSERT not matching the VALUES row length; inserting into a relation that does not accept this insert shape (e.g. wrong target type).

Common situations: Schema changed (column added/removed) but the INSERT statement was not updated; ORM/generated SQL emitting stale column lists; hand-written multi-row INSERTS with mismatched row lengths.

Understand the failure class

Background: Schema validation failed / invalid input schema: payload rejected because its shape doesn't match the expected schema — this error's family across 28 libraries.

Related errors

• Invalid reference: {0}
• Item not found: {0}
• Duplicate Relation Name: {0}
• {} must contain 1 argument
• Bind error: {0}

AI-assisted analysis of risingwavelabs/risingwave@6469eb736d (2026-09-11). Data as JSON: /api/errors/e8aad5f273aa2865. Report an issue: GitHub.