Status MakeGetObjectsSchema()

in c/driver/framework/objects.cc [30:189]
154 lines of code
1 McCabe index (conditional complexity)

Status MakeGetObjectsSchema(struct ArrowSchema* schema) {
  ArrowSchemaInit(schema);
  UNWRAP_ERRNO(Internal, ArrowSchemaSetTypeStruct(schema, /*num_columns=*/2));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetType(schema->children[0], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(schema->children[0], "catalog_name"));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetType(schema->children[1], NANOARROW_TYPE_LIST));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(schema->children[1], "catalog_db_schemas"));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetTypeStruct(schema->children[1]->children[0], 2));

  struct ArrowSchema* db_schema_schema = schema->children[1]->children[0];
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(db_schema_schema->children[0], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(db_schema_schema->children[0], "db_schema_name"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(db_schema_schema->children[1], NANOARROW_TYPE_LIST));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(db_schema_schema->children[1], "db_schema_tables"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetTypeStruct(db_schema_schema->children[1]->children[0], 4));

  struct ArrowSchema* table_schema = db_schema_schema->children[1]->children[0];
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(table_schema->children[0], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(table_schema->children[0], "table_name"));
  table_schema->children[0]->flags &= ~ARROW_FLAG_NULLABLE;
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(table_schema->children[1], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(table_schema->children[1], "table_type"));
  table_schema->children[1]->flags &= ~ARROW_FLAG_NULLABLE;
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(table_schema->children[2], NANOARROW_TYPE_LIST));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(table_schema->children[2], "table_columns"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetTypeStruct(table_schema->children[2]->children[0], 19));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(table_schema->children[3], NANOARROW_TYPE_LIST));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(table_schema->children[3], "table_constraints"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetTypeStruct(table_schema->children[3]->children[0], 4));

  struct ArrowSchema* column_schema = table_schema->children[2]->children[0];
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[0], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(column_schema->children[0], "column_name"));
  column_schema->children[0]->flags &= ~ARROW_FLAG_NULLABLE;
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[1], NANOARROW_TYPE_INT32));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[1], "ordinal_position"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[2], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(column_schema->children[2], "remarks"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[3], NANOARROW_TYPE_INT16));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[3], "xdbc_data_type"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[4], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[4], "xdbc_type_name"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[5], NANOARROW_TYPE_INT32));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[5], "xdbc_column_size"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[6], NANOARROW_TYPE_INT16));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[6], "xdbc_decimal_digits"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[7], NANOARROW_TYPE_INT16));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[7], "xdbc_num_prec_radix"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[8], NANOARROW_TYPE_INT16));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(column_schema->children[8], "xdbc_nullable"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[9], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[9], "xdbc_column_def"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[10], NANOARROW_TYPE_INT16));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[10], "xdbc_sql_data_type"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[11], NANOARROW_TYPE_INT16));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[11], "xdbc_datetime_sub"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[12], NANOARROW_TYPE_INT32));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[12], "xdbc_char_octet_length"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[13], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[13], "xdbc_is_nullable"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[14], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[14], "xdbc_scope_catalog"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[15], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[15], "xdbc_scope_schema"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[16], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[16], "xdbc_scope_table"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[17], NANOARROW_TYPE_BOOL));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(column_schema->children[17], "xdbc_is_autoincrement"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(column_schema->children[18], NANOARROW_TYPE_BOOL));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(column_schema->children[18],
                                            "xdbc_is_generatedcolumn"));

  struct ArrowSchema* constraint_schema = table_schema->children[3]->children[0];
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(constraint_schema->children[0], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(constraint_schema->children[0], "constraint_name"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(constraint_schema->children[1], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetName(constraint_schema->children[1], "constraint_type"));
  constraint_schema->children[1]->flags &= ~ARROW_FLAG_NULLABLE;
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(constraint_schema->children[2], NANOARROW_TYPE_LIST));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(constraint_schema->children[2],
                                            "constraint_column_names"));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetType(constraint_schema->children[2]->children[0],
                                            NANOARROW_TYPE_STRING));
  constraint_schema->children[2]->flags &= ~ARROW_FLAG_NULLABLE;
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(constraint_schema->children[3], NANOARROW_TYPE_LIST));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(constraint_schema->children[3],
                                            "constraint_column_usage"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetTypeStruct(constraint_schema->children[3]->children[0], 4));

  struct ArrowSchema* usage_schema = constraint_schema->children[3]->children[0];
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(usage_schema->children[0], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(usage_schema->children[0], "fk_catalog"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(usage_schema->children[1], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(usage_schema->children[1], "fk_db_schema"));
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(usage_schema->children[2], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(usage_schema->children[2], "fk_table"));
  usage_schema->children[2]->flags &= ~ARROW_FLAG_NULLABLE;
  UNWRAP_ERRNO(Internal,
               ArrowSchemaSetType(usage_schema->children[3], NANOARROW_TYPE_STRING));
  UNWRAP_ERRNO(Internal, ArrowSchemaSetName(usage_schema->children[3], "fk_column_name"));
  usage_schema->children[3]->flags &= ~ARROW_FLAG_NULLABLE;

  return status::Ok();
}