Method SetField

cpp/src/arrow/flight/sql/odbc/odbc_impl/odbc_descriptor.cc:135–249

}

void ODBCDescriptor::SetField(SQLSMALLINT record_number, SQLSMALLINT field_identifier,
                              SQLPOINTER value, SQLINTEGER buffer_length) {
  if (!is_writable_) {
    throw DriverException("Cannot modify read-only descriptor", "HY016");
  }

  // Handle header fields before validating the record number.
  switch (field_identifier) {
    case SQL_DESC_ALLOC_TYPE:
    case SQL_DESC_ARRAY_SIZE:
    case SQL_DESC_ARRAY_STATUS_PTR:
    case SQL_DESC_BIND_OFFSET_PTR:
    case SQL_DESC_BIND_TYPE:
    case SQL_DESC_ROWS_PROCESSED_PTR:
    case SQL_DESC_COUNT:
      SetHeaderField(field_identifier, value, buffer_length);
      return;
    default:
      break;
  }

  if (record_number == 0) {
    throw DriverException("Bookmarks are unsupported.", "07009");
  }

  if (static_cast<size_t>(record_number) > records_.size()) {
    throw DriverException("Invalid descriptor index", "HY009");
  }

  SQLSMALLINT zero_based_record = record_number - 1;
  DescriptorRecord& record = records_[zero_based_record];
  switch (field_identifier) {
    case SQL_DESC_AUTO_UNIQUE_VALUE:
    case SQL_DESC_BASE_COLUMN_NAME:
    case SQL_DESC_BASE_TABLE_NAME:
    case SQL_DESC_CASE_SENSITIVE:
    case SQL_DESC_CATALOG_NAME:
    case SQL_DESC_DISPLAY_SIZE:
    case SQL_DESC_FIXED_PREC_SCALE:
    case SQL_DESC_LABEL:
    case SQL_DESC_LITERAL_PREFIX:
    case SQL_DESC_LITERAL_SUFFIX:
    case SQL_DESC_LOCAL_TYPE_NAME:
    case SQL_DESC_NULLABLE:
    case SQL_DESC_NUM_PREC_RADIX:
    case SQL_DESC_ROWVER:
    case SQL_DESC_SCHEMA_NAME:
    case SQL_DESC_SEARCHABLE:
    case SQL_DESC_TABLE_NAME:
    case SQL_DESC_TYPE_NAME:
    case SQL_DESC_UNNAMED:
    case SQL_DESC_UNSIGNED:
    case SQL_DESC_UPDATABLE:
      throw DriverException("Cannot modify read-only field.", "HY092");
    case SQL_DESC_CONCISE_TYPE:
      SetAttribute(value, record.concise_type);
      record.is_bound = false;
      has_bindings_changed_ = true;