22 calls to db_add_field()

aggregator_update_8001 in drupal/core/modules/aggregator/aggregator.install
Adds the langcode field to {aggregator_item} and {aggregator_feed}.
comment_update_8001 in drupal/core/modules/comment/comment.install
Create a UUID column for comments.
hook_update_N in drupal/core/modules/system/system.api.php
Perform a single update.
node_update_8004 in drupal/core/modules/node/node.install
Create a UUID column for nodes.
node_update_8015 in drupal/core/modules/node/node.install
Add language support to the {node_access} table.
SchemaTest::assertFieldAdditionRemoval in drupal/core/modules/system/lib/Drupal/system/Tests/Database/SchemaTest.php
Asserts that a given field can be added and removed from a table.
SchemaTest::testSchema in drupal/core/modules/system/lib/Drupal/system/Tests/Database/SchemaTest.php
Tests database interactions.
SchemaTest::testUnsignedColumns in drupal/core/modules/system/lib/Drupal/system/Tests/Database/SchemaTest.php
Tests creating unsigned columns and data integrity thereof.
search_update_8001 in drupal/core/modules/search/search.install
Adds the langcode field and indexes to {search_dataset} and {search_index}.
system_update_8004 in drupal/core/modules/system/system.install
Add {file_managed}.langcode field.
system_update_8013 in drupal/core/modules/system/system.install
Add description_callback and description_arguments fields to {menu_router}.
system_update_8015 in drupal/core/modules/system/system.install
Create a UUID column for managed files.
system_update_8048 in drupal/core/modules/system/system.install
Enable the new Menu link module.
system_update_8051 in drupal/core/modules/system/system.install
Add route_name column to the menu_links table.
system_update_8054 in drupal/core/modules/system/system.install
Add route_name column to the menu_router table.
taxonomy_update_8001 in drupal/core/modules/taxonomy/taxonomy.install
Adds langcode field to {taxonomy_term_data} and {taxonomy_vocabulary}.
taxonomy_update_8002 in drupal/core/modules/taxonomy/taxonomy.install
Create a UUID column for taxonomy terms.
update_add_cache_columns in drupal/core/includes/update.inc
Adds tags, checksum_invalidations, checksum_deletions to a cache table.
update_prepare_d8_language in drupal/core/includes/update.inc
Prepares Drupal 8 language changes for the bootstrap if needed.
user_update_8001 in drupal/core/modules/user/user.install
Splits {users}.language field to langcode and preferred_langcode.
user_update_8003 in drupal/core/modules/user/user.install
Create a UUID column for users.
user_update_8005 in drupal/core/modules/user/user.install
Creates a preferred_admin_langcode column.