prestodb/presto · error · NotImplementedException

Not implemented: PreparedStatement.setAsciiStream

Error message

Not implemented: PreparedStatement.setAsciiStream

What it means

PrestoPreparedStatement does not implement PreparedStatement.setAsciiStream: streaming an ASCII InputStream into a parameter is unsupported by this JDBC driver. Calling it always throws NotImplementedException, an in-driver signaling exception indicating an unimplemented JDBC interface method, regardless of the arguments.

Source

Thrown at presto-jdbc/src/main/java/com/facebook/presto/jdbc/PrestoPreparedStatement.java:288

    @Override
    public void setTimestamp(int parameterIndex, Timestamp x)
            throws SQLException
    {
        checkOpen();
        if (x == null) {
            setNull(parameterIndex, Types.TIMESTAMP);
        }
        else {
            setParameter(parameterIndex, formatLiteral("TIMESTAMP", TIMESTAMP_FORMATTER.print(x.getTime())));
        }
    }

    @Override
    public void setAsciiStream(int parameterIndex, InputStream x, int length)
            throws SQLException
    {
        throw new NotImplementedException("PreparedStatement", "setAsciiStream");
    }

    @Override
    public void setUnicodeStream(int parameterIndex, InputStream x, int length)
            throws SQLException
    {
        throw new SQLFeatureNotSupportedException("setUnicodeStream");
    }

    @Override
    public void setBinaryStream(int parameterIndex, InputStream x, int length)
            throws SQLException
    {
        throw new NotImplementedException("PreparedStatement", "setBinaryStream");
    }

    @Override
    public void clearParameters()

View on GitHub (pinned to 55bb57d202)

Solutions

1. Pass the value as a String via setString instead of a stream
2. Read the stream into a byte array and use setBytes for binary content
3. Avoid setAsciiStream with the Presto JDBC driver entirely

When it happens

Trigger: Thrown at presto-jdbc/src/main/java/com/facebook/presto/jdbc/PrestoPreparedStatement.java:288 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of prestodb/presto@55bb57d202 (2026-09-04). Data as JSON: /api/errors/295aaf9bd01cf933. Report an issue: GitHub.