25 calls to db_change_field()

block_update_8002 in drupal/core/modules/block/block.install
Replace serial role IDs with machine name strings.
block_update_8003 in drupal/core/modules/block/block.install
Increase {block}.title length to 255 characters.
comment_update_8000 in drupal/core/modules/comment/comment.install
Renames {comment}.language to {comment}.langcode.
comment_update_8001 in drupal/core/modules/comment/comment.install
Create a UUID column for comments.
comment_update_8002 in drupal/core/modules/comment/comment.install
Make *id fields unsigned.
dblog_update_8001 in drupal/core/modules/dblog/dblog.install
Make *id fields unsigned.
field_sql_storage_update_8000 in drupal/core/modules/field_sql_storage/field_sql_storage.install
Renames the 'language' column to 'langcode' in field data tables.
file_update_8001 in drupal/core/modules/file/file.install
node_update_8002 in drupal/core/modules/node/node.install
Rename node.language field to node.langcode.
node_update_8004 in drupal/core/modules/node/node.install
Create a UUID column for nodes.
node_update_8005 in drupal/core/modules/node/node.install
Make *id fields unsigned.
SchemaTest::testSchema in drupal/core/modules/system/lib/Drupal/system/Tests/Database/SchemaTest.php
Tests database interactions.
statistics_update_8001 in drupal/core/modules/statistics/statistics.install
Make *id fields unsigned.
system_update_8004 in drupal/core/modules/system/system.install
Add {file_managed}.langcode field.
system_update_8015 in drupal/core/modules/system/system.install
Create a UUID column for managed files.
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.
taxonomy_update_8006 in drupal/core/modules/taxonomy/taxonomy.install
Change {taxonomy_term_data}.vid into a string holding the vocabulary machine name.
tracker_update_8001 in drupal/core/modules/tracker/tracker.install
Make *id fields unsigned.
update_prepare_d8_bootstrap in drupal/core/includes/update.inc
Performs extra steps required to bootstrap when using a Drupal 7 database.
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_8002 in drupal/core/modules/user/user.install
Replace serial role IDs with machine name strings.
user_update_8003 in drupal/core/modules/user/user.install
Create a UUID column for users.
user_update_8008 in drupal/core/modules/user/user.install
Make *id fields unsigned.