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-rw-r--r--activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb3
1 files changed, 1 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
index b89e9a01a8..8aa5707959 100644
--- a/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb
@@ -537,7 +537,6 @@ module ActiveRecord
end
yield @definition if block_given?
end
-
copy_table_indexes(from, to, options[:rename] || {})
copy_table_contents(from, to,
@definition.columns.map {|column| column.name},
@@ -560,7 +559,7 @@ module ActiveRecord
unless columns.empty?
# index name can't be the same
- opts = { :name => name.gsub(/_(#{from})_/, "_#{to}_") }
+ opts = { name: name.gsub(/(^|_)(#{from})_/, "\\1#{to}_") }
opts[:unique] = true if index.unique
add_index(to, columns, opts)
end