C++ (Cpp) Schema::GetColumnCount Examples

Example #1

File: schema.cpp Project: GeorgeErickson/peloton

// Compare two schemas
bool Schema::operator==(const Schema &other) const {
  if (other.GetColumnCount() != GetColumnCount() ||
      other.GetUninlinedColumnCount() != GetUninlinedColumnCount() ||
      other.IsInlined() != IsInlined()) {
    return false;
  }

  for (oid_t column_itr = 0; column_itr < other.GetColumnCount();
       column_itr++) {
    const Column &column_info = other.GetColumn(column_itr);
    const Column &other_column_info = GetColumn(column_itr);

    if (column_info != other_column_info) {
      return false;
    }
  }

  return true;
}

Example #2

File: schema.cpp Project: GeorgeErickson/peloton

// Append subsets of columns in the given schemas.
Schema *Schema::AppendSchemaPtrList(
    const std::vector<Schema *> &schema_list,
    const std::vector<std::vector<oid_t>> &subsets) {
  PL_ASSERT(schema_list.size() == subsets.size());

  std::vector<Column> columns;
  for (unsigned int i = 0; i < schema_list.size(); i++) {
    Schema *schema = schema_list[i];
    const std::vector<oid_t> &subset = subsets[i];
    unsigned int column_count = schema->GetColumnCount();

    for (oid_t column_itr = 0; column_itr < column_count; column_itr++) {
      // If column exists in set.
      if (std::find(subset.begin(), subset.end(), column_itr) != subset.end()) {
        columns.push_back(schema->columns[column_itr]);
      }
    }
  }

  Schema *ret_schema = new Schema(columns);

  return ret_schema;
}