public PreparedQuery prepareQuery(Session session, Statement wrappedStatement) throws ParsingException, PrestoException, SemanticException { Statement statement = unwrapExecuteStatement(wrappedStatement, sqlParser, session); if (statement instanceof Explain && ((Explain) statement).isAnalyze()) { Statement innerStatement = ((Explain) statement).getStatement(); Optional<QueryType> innerQueryType = StatementUtils.getQueryType(innerStatement.getClass()); if (!innerQueryType.isPresent() || innerQueryType.get() == QueryType.DATA_DEFINITION) { throw new PrestoException(NOT_SUPPORTED, "EXPLAIN ANALYZE doesn't support statement type: " + innerStatement.getClass().getSimpleName()); } } List<Expression> parameters = ImmutableList.of(); if (wrappedStatement instanceof Execute) { parameters = ((Execute) wrappedStatement).getParameters(); } validateParameters(statement, parameters); return new PreparedQuery(statement, parameters); }