@Override
            public void beforeExecution(final PreparedStatement stmt, final StatementContext ctx) throws SQLException {
                stmt.setFetchSize(fetchSize);
            }
Set the number of rows to fetch from the database in a single batch.
In a transaction, may enable streaming result sets instead of buffering in memory.
@param fetchSize number of rows to fetch at a time
@return the customizer
core/src/main/java/org/jdbi/v3/core/statement/StatementCustomizers.java