15 calls to db_field_exists()

comment_update_8001 in drupal/core/modules/comment/comment.install
Create a UUID column for comments.
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.
node_update_8004 in drupal/core/modules/node/node.install
Create a UUID column for nodes.
RegressionTest::testDBFieldExists in drupal/core/modules/system/lib/Drupal/system/Tests/Database/RegressionTest.php
Tests the db_field_exists() function.
SchemaTest::testUnsignedColumns in drupal/core/modules/system/lib/Drupal/system/Tests/Database/SchemaTest.php
Tests creating unsigned columns and data integrity thereof.
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.
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_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_8003 in drupal/core/modules/user/user.install
Create a UUID column for users.