Merge pull request #44712 from Shopify/fix-mysql-show-create-table

Get rid of `MySQL::SchemaStatements#create_table_sql`

activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb

@@ -159,7 +159,7 @@ def create_table_definition(name, **options)
           end
 
           def default_type(table_name, field_name)
-            match = create_table_sql(table_name).match(/`#{field_name}` (.+) DEFAULT ('|\d+|[A-z]+)/)
+            match = create_table_info(table_name).match(/`#{field_name}` (.+) DEFAULT ('|\d+|[A-z]+)/)
             default_pre = match[2] if match
 
             if default_pre == "'"
@@ -171,12 +171,6 @@ def default_type(table_name, field_name)
             end
           end
 
-          def create_table_sql(table_name)
-            execute_and_free("SHOW CREATE TABLE #{quote_table_name(table_name)}") do |result|
-              result.first[1]
-            end
-          end
-
           def new_column_from_field(table_name, field)
             field_name = field.fetch(:Field)
             type_metadata = fetch_type_metadata(field[:Type], field[:Extra])