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fdf371ab06
If foreign keys specified in create table, generated SQL is slightly more
efficient.
Definition:
```
create_table :testings do |t|
t.references :testing_parent, foreign_key: true
end
```
Before:
```
CREATE TABLE "testings" ("id" serial primary key, "testing_parent_id" integer);
ALTER TABLE "testings" ADD CONSTRAINT "fk_rails_a196c353b2" FOREIGN KEY ("testing_parent_id") REFERENCES "testing_parents" ("id");
```
After:
```
CREATE TABLE "testings" ("id" serial primary key, "testing_parent_id" integer, CONSTRAINT "fk_rails_a196c353b2" FOREIGN KEY ("testing_parent_id") REFERENCES "testing_parents" ("id"));
```
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|---|---|---|
| .. | ||
| change_schema_test.rb | ||
| change_table_test.rb | ||
| column_attributes_test.rb | ||
| column_positioning_test.rb | ||
| columns_test.rb | ||
| command_recorder_test.rb | ||
| create_join_table_test.rb | ||
| foreign_key_test.rb | ||
| helper.rb | ||
| index_test.rb | ||
| logger_test.rb | ||
| pending_migrations_test.rb | ||
| postgresql_geometric_types_test.rb | ||
| references_foreign_key_test.rb | ||
| references_index_test.rb | ||
| references_statements_test.rb | ||
| rename_table_test.rb | ||
| table_and_index_test.rb | ||