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Diffstat (limited to 'doc/development/migration_style_guide.md')
| -rw-r--r-- | doc/development/migration_style_guide.md | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/doc/development/migration_style_guide.md b/doc/development/migration_style_guide.md index 243ac7f0c98..1e060ffd941 100644 --- a/doc/development/migration_style_guide.md +++ b/doc/development/migration_style_guide.md @@ -136,11 +136,14 @@ class MyMigration < ActiveRecord::Migration disable_ddl_transaction! def up - remove_concurrent_index :table_name, :column_name if index_exists?(:table_name, :column_name) + remove_concurrent_index :table_name, :column_name end end ``` +Note that it is not necessary to check if the index exists prior to +removing it. + ## Adding indexes If you need to add a unique index please keep in mind there is the possibility |