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* PERF: Restore memoization when preloading associations.Guo Xiang Tan2017-09-251-6/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Benchmark Script ``` require 'active_record' require 'benchmark/ips' require 'ruby-prof' require 'memory_profiler' require 'byebug' ActiveRecord::Base.establish_connection(ENV.fetch('DATABASE_URL')) ActiveRecord::Migration.verbose = false ActiveRecord::Schema.define do create_table :users, force: true do |t| t.string :name, :email t.integer :topic_id t.timestamps null: false end create_table :topics, force: true do |t| t.string :title t.timestamps null: false end end attributes = { name: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.', email: 'foobar@email.com' } class Topic < ActiveRecord::Base has_many :users end class User < ActiveRecord::Base belongs_to :topic end 100.times do User.create!(attributes) end users = User.first(50) Topic.create!(title: 'This is a topic', users: users) Benchmark.ips do |x| x.config(time: 10, warmup: 5) x.report("preload") do User.includes(:topic).all.to_a end end ``` Before ``` Calculating ------------------------------------- preload 26.000 i/100ms ------------------------------------------------- preload 265.347 (± 3.0%) i/s - 2.652k ``` After ``` Calculating ------------------------------------- preload 39.000 i/100ms ------------------------------------------------- preload 406.053 (± 1.7%) i/s - 4.095k ```
* Unneeded Mocha stubs for Kernel#systemAkira Matsuda2017-09-251-2/+0
| | | | It's done inside each test via assert_called_with or Kernel.expects
* Extract `integer_like_primary_key_type` to ease to handle it for adaptersRyuta Kamizono2017-09-254-17/+18
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* Move integer-like primary key normalization to `new_column_definition`Ryuta Kamizono2017-09-236-38/+28
| | | | | | Currently the normalization only exists in `primary_key` shorthand. It should be moved to `new_column_definition` to also affect to `add_column` with primary key.
* Adding legacy primary key should be compatibleRyuta Kamizono2017-09-232-0/+70
| | | | | | | Currently implicit legacy primary key is compatible, but adding explicit legacy primary key is not compatible. It should also be fixed. Fixes #30664.
* Ensure `1 AS one` for SQL Server with calculations.Ken Collins2017-09-221-1/+1
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* Prevent extra `column_for` for `change_column_{default,null,comment}`Ryuta Kamizono2017-09-231-7/+4
| | | | | | | `change_column_{default,null,comment}` in mysql2 adapter are passing `column.sql_type` as `type` to `change_column` to intend keeping previous type. But `column_for` requires extra query, so use passing `nil` to `type` explicitly in the internal for the purpose.
* `index_name` should be quotedRyuta Kamizono2017-09-221-1/+1
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* Return nil if table comment is blankRyuta Kamizono2017-09-222-2/+2
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* Implement change_table_comment and change_column_comment for MySql AdapterAlecs Popa2017-09-222-0/+32
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* Merge pull request #24199 from meinac/fix_invert_add_indexRyuta Kamizono2017-09-213-2/+13
|\ | | | | Use algorithm while removing index with db:rollback
| * Use algorithm while removing index with db:rollbackMehmet Emin İNAÇ2017-09-213-2/+13
| | | | | | | | Closes #24190
* | Fix "warning: `*' interpreted as argument prefix"yuuji.yaginuma2017-09-211-5/+5
|/ | | | | | | | | | | | This fixes following warning: ``` /home/travis/build/rails/rails/activerecord/test/cases/instrumentation_test.rb:11: warning: `*' interpreted as argument prefix /home/travis/build/rails/rails/activerecord/test/cases/instrumentation_test.rb:23: warning: `*' interpreted as argument prefix /home/travis/build/rails/rails/activerecord/test/cases/instrumentation_test.rb:35: warning: `*' interpreted as argument prefix /home/travis/build/rails/rails/activerecord/test/cases/instrumentation_test.rb:48: warning: `*' interpreted as argument prefix /home/travis/build/rails/rails/activerecord/test/cases/instrumentation_test.rb:61: warning: `*' interpreted as argument prefix ```
* Merge pull request #30619 from ↵Eileen M. Uchitelle2017-09-203-4/+83
|\ | | | | | | | | jagthedrummer/jeremy/instrumentation-payload-names Update payload names for `sql.active_record` instrumentation to be more descriptive.
| * Update payload names for `sql.active_record` to be more descriptive.Jeremy Green2017-09-203-4/+83
| | | | | | | | Fixes #30586.
* | make create_join_table compatible.Yuki Masutomi2017-09-202-0/+45
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* | Merge pull request #30656 from yskkin/add_column_docRyuta Kamizono2017-09-201-0/+2
|\ \ | | | | | | Add :comment option for add_column [ci skip]
| * | Add :comment option for add_column [ci skip]Yoshiyuki Kinjo2017-09-201-0/+2
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* | Merge pull request #26707 from jcoleman/add_attribute_names_cache_busting_specRyuta Kamizono2017-09-181-0/+2
|\ \ | | | | | | Add test validating that Model.attribute_names cache is busted
| * | Add test validating that Model.attribute_names cache is bustedJames Coleman2016-10-041-0/+2
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* | | Remove unused delegation to `reflection.options` in `Preloader::Association`Ryuta Kamizono2017-09-182-4/+1
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* | | The name of the key on the associated record is abstracted as ↵Ryuta Kamizono2017-09-185-23/+14
| | | | | | | | | | | | `reflection.join_primary_key`
* | | The name of the key on the owner is abstracted as `reflection.join_foreign_key`Ryuta Kamizono2017-09-184-17/+5
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* | | Extract `associate_records_to_owner` to refactor `Preloader::Association`Ryuta Kamizono2017-09-183-20/+14
| | | | | | | | | | | | | | | | | | | | | | | | Since we have `Preloader#preload`, `Preloader::Association#preload` is a little confusing. And also, since the `preload` method is an abstract method, it is hard to read where `associated_records_by_owner` is called. This refactors `Preloader::Association` to ease to read where `associated_records_by_owner` is called.
* | | Fix collided sequence name detectionRyuta Kamizono2017-09-182-1/+44
| | | | | | | | | | | | | | | | | | If collided named sequence already exists, newly created serial column will generate alternative sequence name. Fix sequence name detection to allow the alternative names.
* | | Remove the code that swapping `scope` and `options`Ryuta Kamizono2017-09-182-8/+3
| | | | | | | | | | | | `options` is never assigned to `scope` as long as using splat hash.
* | | `id` (primary key) is not only an integer [ci skip]Ryuta Kamizono2017-09-181-1/+1
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* | | Ensure returning affected objects for class level `update` and `destroy`Ryuta Kamizono2017-09-182-12/+14
| | | | | | | | | | | | | | | | | | | | | Class level `update` and `destroy` are using `find` in the internal, so it will raise `RecordNotFound` if given ids cannot find an object even though the method already affect (update or destroy) to any objects. These methods should return affected objects even in that case.
* | | Place class level `update`, `destroy`, and `delete` in ↵Ryuta Kamizono2017-09-183-95/+93
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `Persistence::ClassMethods` The docs are obviously for class level `update`, `destroy`, and `delete`. It should be placed in `Persistence::ClassMethods` rather than `Relation`. And also, these methods are not dependent on relation. So it is not needed to delegate to `all` (plus, `klass.find` is faster than `relation.find`).
* | | Early return if `records.empty?` in `Preloader#preload`Ryuta Kamizono2017-09-181-3/+3
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* | | Don't pass `reflection_scope` to `preload_scope` if `reflection.scope` isn't ↵Ryuta Kamizono2017-09-181-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | given Related 2b5f5cdd7c1d95716de6a206b6d09ccbb006dc17. If `reflection.scope` isn't given, `reflection_scope` is always empty scope. It is unnecessary to merge it.
* | | Return `through_scope` only if the scope is not empty scopeRyuta Kamizono2017-09-181-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Related 2b5f5cdd7c1d95716de6a206b6d09ccbb006dc17. If `through_scope` is empty scope, it is unnecessary to merge it. And also, comparing relations is a little expensive (will cause `build_arel`). It is enough to use `empty_scope?` to determine whether empty scope.
* | | Remove useless condition in `reset_association`Ryuta Kamizono2017-09-181-2/+1
| | | | | | | | | | | | `through_scope` is not empty scope if `options[:source_type]` is given.
* | | Fix docs describing rollback [ci skip]dixpac2017-09-171-2/+2
| |/ |/| | | | | | | | | | | * `rails db:migrate STEP = 2` will not rollback the migrations, instead `rails db:rollback STEP = 2` will do the rollback. * Also, rewritten `rails db:migrate VERSION` => `rails db:rollback VERSION` for consistency.
* | Remove unused explicit delegation to `klass` in `relation`Ryuta Kamizono2017-09-143-8/+2
| | | | | | | | | | | | | | It is only used `primary_key` and `connection` in the internal, so it is not needed to delegate others to `klass` explicitly. This doesn't change public behavior because `relation` will delegate missing method to `klass`.
* | Don't use `collection.table_name` in `collection_cache_key`Ryuta Kamizono2017-09-142-1/+19
| | | | | | | | | | Because `collection.table_name` doesn't respect table alias. Use `collection.arel_attribute` instead.
* | Don't use `quoted_table_name` in `limited_ids_for`Ryuta Kamizono2017-09-142-2/+8
| | | | | | | | | | | | Because `quoted_table_name` doesn't respect table alias. We should use `arel_attribute` for that, so I added `column_name_from_arel_node` to generate column name from an arel node.
* | Merge pull request #30596 from yahonda/address_test_or_with_bind_params_failureRyuta Kamizono2017-09-141-1/+1
|\ \ | | | | | | Address random `test_or_with_bind_params` failures
| * | Address random `test_or_with_bind_params` failuresYasuo Honda2017-09-131-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reported at https://travis-ci.org/rails/rails/jobs/274370258 - `Post.find([1, 2])` generates this query below: ```sql SELECT "posts".* FROM "posts" WHERE "posts"."id" IN ($1, $2) [["id", 1], ["id", 2]] ``` - `Post.where(id: 1).or(Post.where(id: 2)).to_a` generates this query below: ```sql SELECT "posts".* FROM "posts" WHERE ("posts"."id" = $1 OR "posts"."id" = $2) [["id", 1], ["id", 2]] ``` Most of the time these two queries return the same result but the order of records are not guaranteed from SQL point of view then added `sort` before comparing them.
* | | `quoted_table_name` doesn't respect table aliasRyuta Kamizono2017-09-142-1/+12
|/ / | | | | | | So using `arel_attribute(primary_key).asc` in `batch_order` instead.
* | Make `in_batches` queries to preparableRyuta Kamizono2017-09-141-3/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before: ```sql SELECT "posts".* FROM "posts" ORDER BY "posts"."id" ASC LIMIT ? [["LIMIT", 2]] SELECT "posts".* FROM "posts" WHERE "posts"."id" > 2 ORDER BY "posts"."id" ASC LIMIT ? [["LIMIT", 2]] SELECT "posts".* FROM "posts" WHERE "posts"."id" > 4 ORDER BY "posts"."id" ASC LIMIT ? [["LIMIT", 2]] SELECT "posts".* FROM "posts" WHERE "posts"."id" > 6 ORDER BY "posts"."id" ASC LIMIT ? [["LIMIT", 2]] SELECT "posts".* FROM "posts" WHERE "posts"."id" > 8 ORDER BY "posts"."id" ASC LIMIT ? [["LIMIT", 2]] SELECT "posts".* FROM "posts" WHERE "posts"."id" > 10 ORDER BY "posts"."id" ASC LIMIT ? [["LIMIT", 2]] ``` After: ```sql SELECT "posts".* FROM "posts" ORDER BY "posts"."id" ASC LIMIT ? [["LIMIT", 2]] SELECT "posts".* FROM "posts" WHERE "posts"."id" > ? ORDER BY "posts"."id" ASC LIMIT ? [["id", 2], ["LIMIT", 2]] SELECT "posts".* FROM "posts" WHERE "posts"."id" > ? ORDER BY "posts"."id" ASC LIMIT ? [["id", 4], ["LIMIT", 2]] SELECT "posts".* FROM "posts" WHERE "posts"."id" > ? ORDER BY "posts"."id" ASC LIMIT ? [["id", 6], ["LIMIT", 2]] SELECT "posts".* FROM "posts" WHERE "posts"."id" > ? ORDER BY "posts"."id" ASC LIMIT ? [["id", 8], ["LIMIT", 2]] SELECT "posts".* FROM "posts" WHERE "posts"."id" > ? ORDER BY "posts"."id" ASC LIMIT ? [["id", 10], ["LIMIT", 2]] ```
* | PERF: Incorrect memoization in ↵Guo Xiang Tan2017-09-111-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | `ActiveRecord::Associations::Preloader::Association`. ``` require 'active_record' require 'benchmark/ips' ActiveRecord::Base.establish_connection(ENV.fetch('DATABASE_URL')) ActiveRecord::Migration.verbose = false ActiveRecord::Schema.define do create_table :users, force: true do |t| t.string :name, :email t.integer :topic_id t.timestamps null: false end create_table :topics, force: true do |t| t.string :title t.timestamps null: false end end attributes = { name: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.', email: 'foobar@email.com' } class Topic < ActiveRecord::Base has_many :users end class User < ActiveRecord::Base belongs_to :topic end 100.times do User.create!(attributes) end users = User.first(50) 100.times do Topic.create!(title: 'This is a topic', users: users) end Benchmark.ips do |x| x.config(time: 10, warmup: 5) x.report("preload") do User.includes(:topic).all.to_a end end ``` ``` Calculating ------------------------------------- preload 25.000 i/100ms ------------------------------------------------- preload 251.772 (± 1.2%) i/s - 2.525k ``` ``` Calculating ------------------------------------- preload 26.000 i/100ms ------------------------------------------------- preload 270.392 (± 1.1%) i/s - 2.704k ```
* | Merge pull request #30524 from tgxworld/recover_plucK_performanceSean Griffin2017-09-071-14/+17
|\ \ | | | | | | PERF: Recover `ActiveRecord::pluck` performance.
| * | PERF: Recover `ActiveRecord::pluck` performance.Guo Xiang Tan2017-09-061-14/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ```ruby require 'active_record' require 'benchmark/ips' ActiveRecord::Base.establish_connection(ENV.fetch('DATABASE_URL')) ActiveRecord::Migration.verbose = false ActiveRecord::Schema.define do create_table :users, force: true do |t| t.string :name, :email t.timestamps null: false end end attributes = { name: 'Lorem ipsum dolor sit amet, consectetur adipiscing elit.', email: 'foobar@email.com' } class User < ActiveRecord::Base; end 1000.times do User.create!(attributes) end Benchmark.ips do |x| x.config(time: 10, warmup: 2) x.report('pluck 1 column') do User.pluck(:id) end x.report('pluck 2 columns') do User.pluck(:id, :email) end x.report('pluck 1 column with scope') do User.where(id: 1000).pluck(:id) end x.report('pluck 2 columns with scope') do User.where(id: 1000).pluck(:id, :email) end end ``` ``` Calculating ------------------------------------- pluck 1 column 122.000 i/100ms pluck 2 columns 74.000 i/100ms pluck 1 column with scope 615.000 i/100ms pluck 2 columns with scope 515.000 i/100ms ------------------------------------------------- pluck 1 column 1.272k (± 3.9%) i/s - 12.810k pluck 2 columns 750.096 (± 3.3%) i/s - 7.548k pluck 1 column with scope 6.074k (± 4.1%) i/s - 60.885k pluck 2 columns with scope 5.158k (± 2.7%) i/s - 52.015k ``` ``` Calculating ------------------------------------- pluck 1 column 126.000 i/100ms pluck 2 columns 78.000 i/100ms pluck 1 column with scope 457.000 i/100ms pluck 2 columns with scope 434.000 i/100ms ------------------------------------------------- pluck 1 column 1.266k (± 2.1%) i/s - 12.726k pluck 2 columns 795.061 (± 3.0%) i/s - 7.956k pluck 1 column with scope 4.660k (± 2.1%) i/s - 46.614k pluck 2 columns with scope 4.355k (± 2.3%) i/s - 43.834k ``` ``` Calculating ------------------------------------- pluck 1 column 126.000 i/100ms pluck 2 columns 78.000 i/100ms pluck 1 column with scope 539.000 i/100ms pluck 2 columns with scope 481.000 i/100ms ------------------------------------------------- pluck 1 column 1.308k (± 3.4%) i/s - 13.104k pluck 2 columns 798.604 (± 2.8%) i/s - 8.034k pluck 1 column with scope 5.530k (± 3.4%) i/s - 55.517k pluck 2 columns with scope 4.914k (± 2.7%) i/s - 49.543k ``` ``` Calculating ------------------------------------- pluck 1 column 139.000 i/100ms pluck 2 columns 79.000 i/100ms pluck 1 column with scope 580.000 i/100ms pluck 2 columns with scope 526.000 i/100ms ------------------------------------------------- pluck 1 column 1.337k (± 3.0%) i/s - 13.483k pluck 2 columns 806.776 (± 2.7%) i/s - 8.137k pluck 1 column with scope 5.924k (± 4.1%) i/s - 59.160k pluck 2 columns with scope 5.276k (± 3.1%) i/s - 53.126k ```
* | | Remove unnecessary `join_type` in `AssociationScope`Ryuta Kamizono2017-09-081-5/+1
| | | | | | | | | | | | | | | | | | This method was moved from `JoinHelper` in 0fddc3c1, but it is only used for `table.create_join` in the internal and `Nodes::InnerJoin` is default join klass. So it is not needed to pass it explicitly.
* | | Remove duplicated `klass` method in `AssociationReflection`Ryuta Kamizono2017-09-081-16/+11
| | | | | | | | | | | | | | | The superclass (`MacroReflection`) already have the same method definition.
* | | Remove unused `primary_key_type` and `quoted_table_name` in `Reflection`Ryuta Kamizono2017-09-081-8/+0
| | | | | | | | | | | | | | | `primary_key_type` is no longer used since #26718. `quoted_table_name` is no longer used since Rails 3.1.
* | | Add an extra assertion to ensure dumping schema default as expectedRyuta Kamizono2017-09-081-1/+4
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* | | Fix `quote_default_expression` for UUID with array defaultRyuta Kamizono2017-09-082-1/+11
| | | | | | | | | | | | Fixes #30539.
* | | Don't pass `table` to `last_chain_scope` and `next_chain_scope`Ryuta Kamizono2017-09-072-19/+17
| | | | | | | | | | | | | | | | | | Because `table` is part of `reflection`, don't need to pass it explicitly. And also, naming `alias_name` to `table` is a little confusing. `aliased_table` is preferable than `alias_name`.