Fix `connection#create` in PG adapter

Originally `connection#create` had aliased to `connection#insert` in PG
adapter. But it was broken by #7447. Re-alias `create` to `insert` for
fixing it.

1 files changed, 12 insertions, 3 deletions

diff --git a/activerecord/test/cases/database_statements_test.rb b/activerecord/test/cases/database_statements_test.rb
index c689e97d83..ba085991e0 100644
--- a/activerecord/test/cases/database_statements_test.rb
+++ b/activerecord/test/cases/database_statements_test.rb
@@ -6,14 +6,23 @@ class DatabaseStatementsTest < ActiveRecord::TestCase
   end
 
   def test_insert_should_return_the_inserted_id
+    assert_not_nil return_the_inserted_id(method: :insert)
+  end
+
+  def test_create_should_return_the_inserted_id
+    assert_not_nil return_the_inserted_id(method: :create)
+  end
+
+  private
+
+  def return_the_inserted_id(method:)
     # Oracle adapter uses prefetched primary key values from sequence and passes them to connection adapter insert method
     if current_adapter?(:OracleAdapter)
       sequence_name = "accounts_seq"
       id_value = @connection.next_sequence_value(sequence_name)
-      id = @connection.insert("INSERT INTO accounts (id, firm_id,credit_limit) VALUES (accounts_seq.nextval,42,5000)", nil, :id, id_value, sequence_name)
+      @connection.send(method, "INSERT INTO accounts (id, firm_id,credit_limit) VALUES (accounts_seq.nextval,42,5000)", nil, :id, id_value, sequence_name)
     else
-      id = @connection.insert("INSERT INTO accounts (firm_id,credit_limit) VALUES (42,5000)")
+      @connection.send(method, "INSERT INTO accounts (firm_id,credit_limit) VALUES (42,5000)")
     end
-    assert_not_nil id
   end
 end