apache/shardingsphere · error · SQLFeatureNotSupportedException

updateClob

Error message

updateClob

What it means

Error "updateClob" thrown in apache/shardingsphere.

Source

Thrown at kernel/sql-federation/core/src/main/java/org/apache/shardingsphere/sqlfederation/resultset/AbstractUnsupportedUpdateOperationSQLFederationResultSet.java:364

    
    @Override
    public final void updateBlob(final String columnLabel, final InputStream inputStream) throws SQLException {
        throw new SQLFeatureNotSupportedException("updateBlob");
    }
    
    @Override
    public final void updateBlob(final int columnIndex, final InputStream inputStream, final long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("updateBlob");
    }
    
    @Override
    public final void updateBlob(final String columnLabel, final InputStream inputStream, final long length) throws SQLException {
        throw new SQLFeatureNotSupportedException("updateBlob");
    }
    
    @Override
    public final void updateClob(final int columnIndex, final Clob x) throws SQLException {
        throw new SQLFeatureNotSupportedException("updateClob");
    }
    
    @Override
    public final void updateClob(final String columnLabel, final Clob x) throws SQLException {
        throw new SQLFeatureNotSupportedException("updateClob");
    }
    
    @Override
    public final void updateClob(final int columnIndex, final Reader reader) throws SQLException {
        throw new SQLFeatureNotSupportedException("updateClob");
    }
    
    @Override
    public final void updateClob(final String columnLabel, final Reader reader) throws SQLException {
        throw new SQLFeatureNotSupportedException("updateClob");
    }
    
    @Override

View on GitHub (pinned to e952770a21)

Solutions

1. updateClob is not supported on SQL federation result sets; avoid calling it.
2. Update the CLOB column with a standard UPDATE statement instead.

When it happens

Trigger: updateClob is invoked on a read-only SQL federation result set.

Common situations: Code using updatable ResultSet CLOB handling against federated query results.

AI-assisted analysis of apache/shardingsphere@e952770a21 (2026-08-14). Data as JSON: /api/errors/dd196eaa2e82c129. Report an issue: GitHub.