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| * | Raise `ArgumentError` for invalid `:limit` and `:precision` like as other ↵Ryuta Kamizono2019-04-073-6/+6
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | options When I've added new `:size` option in #35071, I've found that invalid `:limit` and `:precision` raises `ActiveRecordError` unlike other invalid options. I think that is hard to distinguish argument errors and statement invalid errors since the `StatementInvalid` is a subclass of the `ActiveRecordError`. https://github.com/rails/rails/blob/c9e4c848eeeb8999b778fa1ae52185ca5537fffe/activerecord/lib/active_record/errors.rb#L103 ```ruby begin # execute any migration rescue ActiveRecord::StatementInvalid # statement invalid rescue ActiveRecord::ActiveRecordError, ArgumentError # `ActiveRecordError` except `StatementInvalid` is maybe an argument error end ``` I'd say this is the inconsistency worth fixing. Before: ```ruby add_column :items, :attr1, :binary, size: 10 # => ArgumentError add_column :items, :attr2, :decimal, scale: 10 # => ArgumentError add_column :items, :attr3, :integer, limit: 10 # => ActiveRecordError add_column :items, :attr4, :datetime, precision: 10 # => ActiveRecordError ``` After: ```ruby add_column :items, :attr1, :binary, size: 10 # => ArgumentError add_column :items, :attr2, :decimal, scale: 10 # => ArgumentError add_column :items, :attr3, :integer, limit: 10 # => ArgumentError add_column :items, :attr4, :datetime, precision: 10 # => ArgumentError ```
* | Merge pull request #35890 from kamipo/except_table_name_from_columnRyuta Kamizono2019-04-096-49/+43
|\ \ | | | | | | Except `table_name` from column objects
| * | Except `table_name` from column objectsRyuta Kamizono2019-04-086-49/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | The `table_name` was added at #23677 to detect whether serial column or not correctly. We can do that detection before initialize column object, it makes column object size smaller, and it probably helps column object de-duplication.
* | | When skipping duplicates in bulk insert on MySQL, avoid assigning id when ↵Bob Lail2019-04-081-2/+2
|/ / | | | | | | | | | | | | | | | | | | | | not specified If `id` is an `AUTONUMBER` column, then my former strategy here of assigning `no_op_column` to an arbitrary column would fail in this specific scenario: 1. `model.columns.first` is an AUTONUMBER column 2. `model.columns.first` is not assigned in the insert attributes I added three tests: the first test covers the actual error; the second test documents that this _isn't_ a problem when a value is given for the AUTONUMBER column and the third test ensures that this no-op strategy isn't secretly doing an UPSERT.
* / Fix GROUP BY with calculate longer name field to respect `table_alias_length`Ryuta Kamizono2019-04-083-6/+12
|/ | | | Follow up of c9e4c848eeeb8999b778fa1ae52185ca5537fffe.
* Clear query cache when truncate table(s)Ryuta Kamizono2019-04-041-1/+2
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* Use `execute_batch2` rather than `execute_batch` to fix performance ↵Ryuta Kamizono2019-04-042-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | regression for fixture loading d8d6bd5 makes fixture loading to bulk statements by using `execute_batch` for sqlite3 adapter. But `execute_batch` is slower and it caused the performance regression for fixture loading. In sqlite3 1.4.0, it have new batch method `execute_batch2`. I've confirmed `execute_batch2` is extremely faster than `execute_batch`. So I think it is worth to upgrade sqlite3 to 1.4.0 to use that method. Before: ``` % ARCONN=sqlite3 bundle exec ruby -w -Itest test/cases/associations/eager_test.rb -n test_eager_loading_too_may_ids Using sqlite3 Run options: -n test_eager_loading_too_may_ids --seed 35790 # Running: . Finished in 202.437406s, 0.0049 runs/s, 0.0049 assertions/s. 1 runs, 1 assertions, 0 failures, 0 errors, 0 skips ARCONN=sqlite3 bundle exec ruby -w -Itest -n test_eager_loading_too_may_ids 142.57s user 60.83s system 98% cpu 3:27.08 total ``` After: ``` % ARCONN=sqlite3 bundle exec ruby -w -Itest test/cases/associations/eager_test.rb -n test_eager_loading_too_may_ids Using sqlite3 Run options: -n test_eager_loading_too_may_ids --seed 16649 # Running: . Finished in 8.471032s, 0.1180 runs/s, 0.1180 assertions/s. 1 runs, 1 assertions, 0 failures, 0 errors, 0 skips ARCONN=sqlite3 bundle exec ruby -w -Itest -n test_eager_loading_too_may_ids 10.71s user 1.36s system 95% cpu 12.672 total ```
* Merge pull request #35795 from alimi/cache-database-versionEileen M. Uchitelle2019-04-0310-56/+72
|\ | | | | Cache database version in schema cache
| * Cache database version in schema cacheAli Ibrahim2019-04-0310-56/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * The database version will get cached in the schema cache file during the schema cache dump. When the database version check happens, the version will be pulled from the schema cache and thus avoid querying the database for the version. * If the schema cache file doesn't exist, we'll query the database for the version and cache it on the schema cache object. * To facilitate this change, all connection adapters now implement #get_database_version and #database_version. #database_version returns the value from the schema cache. * To take advantage of the cached database version, the database version check will now happen after the schema cache is set on the connection in the connection pool.
* | `bytes_margin` is only needed when `previous_packet` existsRyuta Kamizono2019-04-031-5/+2
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* | Use official database name [ci skip]Ryuta Kamizono2019-04-031-1/+1
|/ | | | | | | | * s/Postgres/PostgreSQL/ * s/MYSQL/MySQL/, s/Mysql/MySQL/ * s/Sqlite/SQLite/ Replaced all newly added them after 6089b31.
* Extract `sanitize_as_sql_comment` from SQL visitor into connectionRyuta Kamizono2019-03-191-0/+4
| | | | Probably that is useful for any other feature as well.
* Don't expose internal `type_casted_binds` methodRyuta Kamizono2019-03-191-7/+7
| | | | Internal usage for the method as public has removed at #29623.
* Tweak `truncate_tables`Ryuta Kamizono2019-03-181-17/+17
| | | | | | * Remove redundant `table_names.empty?` * Early return in `truncate_tables` since it is already deeply nested * Move `truncate_tables` out from between `exec_delete` and `exec_update`
* SQLite3: Make fixture loading to bulk statementsRyuta Kamizono2019-03-174-47/+38
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* Fix undefined local variable or method `discard_remaining_results'Ryuta Kamizono2019-03-171-1/+1
| | | | https://buildkite.com/rails/rails/builds/59632#fe3d2551-569a-46c8-94f3-7abe835d4d7a/122-153
* Ensure `execute_batch` discards remaining resultsRyuta Kamizono2019-03-172-14/+5
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* Make `truncate_tables` to bulk statementsRyuta Kamizono2019-03-176-52/+118
| | | | | | | | | | | | | | | | | | Before: ``` (16.4ms) TRUNCATE TABLE `author_addresses` (20.5ms) TRUNCATE TABLE `authors` (19.4ms) TRUNCATE TABLE `posts` ``` After: ``` Truncate Tables (19.5ms) TRUNCATE TABLE `author_addresses`; TRUNCATE TABLE `authors`; TRUNCATE TABLE `posts` ```
* Extract `truncate` and `truncate_tables` into database statementsRyuta Kamizono2019-03-175-13/+15
| | | | This is to easier make `truncate_tables` to bulk statements.
* Support Optimizer HintsRyuta Kamizono2019-03-163-2/+22
| | | | | | | | | | | | | | | | | | We as Arm Treasure Data are using Optimizer Hints with a monkey patch (https://gist.github.com/kamipo/4c8539f0ce4acf85075cf5a6b0d9712e), especially in order to use `MAX_EXECUTION_TIME` (refer #31129). Example: ```ruby class Job < ApplicationRecord default_scope { optimizer_hints("MAX_EXECUTION_TIME(50000) NO_INDEX_MERGE(jobs)") } end ``` Optimizer Hints is supported not only for MySQL but also for most databases (PostgreSQL on RDS, Oracle, SQL Server, etc), it is really helpful to turn heavy queries for large scale applications.
* Revert "Remove Marshal support from SchemaCache"Rafael Mendonça França2019-03-131-0/+11
| | | | This reverts commit 65f2eeaaf5774f0891fff700f4defb0b90a05789.
* Schema Cache: cache table indexesKasper Timm Hansen2019-03-131-5/+15
| | | | | | Useful to not query for indexes when an application uses schema cache. Ref https://github.com/rails/rails/pull/35546
* Merge branch 'test-remove-marshal-support-from-schema-cache'Kasper Timm Hansen2019-03-121-10/+0
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| * Remove Marshal support from SchemaCacheKasper Timm Hansen2019-03-121-10/+0
| | | | | | | | | | YAML has been used to serialize the schema cache ever since 2016 with Rails 5.1: 4c00c6ed
* | Modernize size calculation in Schema CacheKasper Timm Hansen2019-03-121-1/+1
|/ | | | | Not looking for other contributions like this, but I took the liberty since I was already working on this.
* Initialize `@default_timezone` and `@timestamp_decoder` in `add_pg_decoders`Ryuta Kamizono2019-03-131-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Staled `@default_timezone` would cause an error on `reconnect!` after `disconnect!`. https://buildkite.com/rails/rails/builds/59495#23be8079-3a4f-4375-9991-0a6f874554f2 Steps to reproduce: ``` % ARCONN=postgresql bin/test test/cases/adapter_test.rb test/cases/base_test.rb -n "/(?:test_attributes_on_dummy_time|test_reconnect_after_a_disconnect)$/" --seed 15849 Using postgresql Run options: -n "/(?:test_attributes_on_dummy_time|test_reconnect_after_a_disconnect)$/" --seed 15849 # Running: . E Error: ActiveRecord::AdapterTestWithoutTransaction#test_reconnect_after_a_disconnect: NoMethodError: undefined method `add_coder' for #<PG::TypeMapAllStrings:0x00007f85ab9dd5b8> /Users/kamipo/src/github.com/rails/rails/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb:866:in `update_typemap_for_default_timezone' /Users/kamipo/src/github.com/rails/rails/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb:652:in `exec_no_cache' /Users/kamipo/src/github.com/rails/rails/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb:636:in `execute_and_clear' /Users/kamipo/src/github.com/rails/rails/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb:894:in `add_pg_decoders' /Users/kamipo/src/github.com/rails/rails/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb:744:in `connect' /Users/kamipo/src/github.com/rails/rails/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb:285:in `rescue in block in reconnect!' /Users/kamipo/src/github.com/rails/rails/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb:281:in `block in reconnect!' /Users/kamipo/.rbenv/versions/2.6.1/lib/ruby/2.6.0/monitor.rb:230:in `mon_synchronize' /Users/kamipo/src/github.com/rails/rails/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb:280:in `reconnect!' /Users/kamipo/src/github.com/rails/rails/activerecord/test/cases/adapter_test.rb:465:in `block in <class:AdapterTestWithoutTransaction>' ```
* Squish the deprecation messages across the codebasePrathamesh Sonpatki2019-03-111-1/+1
| | | | | | | | | | | | | | | | Sample example -> Before: prathamesh@Prathameshs-MacBook-Pro-2 blog *$ rails server thin DEPRECATION WARNING: Passing the Rack server name as a regular argument is deprecated and will be removed in the next Rails version. Please, use the -u option instead. After: prathamesh@Prathameshs-MacBook-Pro-2 squish_app *$ rails server thin DEPRECATION WARNING: Passing the Rack server name as a regular argument is deprecated and will be removed in the next Rails version. Please, use the -u option instead.
* PostgreSQL: Add `add_pg_encoders` and `add_pg_decoders` in `connect`Ryuta Kamizono2019-03-101-0/+2
| | | | | | It is to work that on `reconnect!` after `disconnect!`. https://buildkite.com/rails/rails/builds/59378#1efea538-cfca-4d43-8b7e-ae78e97227c8
* SQLite3: Set `busy_timeout` in `configure_connection`Ryuta Kamizono2019-03-101-2/+2
| | | | It is to work that on `reconnect!` after `disconnect!`
* Fix `reconnect!` to work after `disconnect!`Ryuta Kamizono2019-03-102-4/+16
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* Move all Arel constructions from uniqueness validator into connection adapterRyuta Kamizono2019-03-072-4/+5
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* Allow `remove_foreign_key` with both `to_table` and `options`Ryuta Kamizono2019-03-064-19/+15
| | | | | | | Foreign keys could be created to the same table. So `remove_foreign_key :from_table, :to_table` is sometimes ambiguous. This allows `remove_foreign_key` to remove the select one on the same table with giving both `to_table` and `options`.
* Ensure `clear_cache!` clears the prepared statements cacheRyuta Kamizono2019-03-064-26/+21
| | | | | | | | | | | Since #23461, all adapters supports prepared statements, so that clears the prepared statements cache is no longer database specific. Actually, I struggled to identify the cause of random CI failure in #23461, that was missing `@statements.clear` in `clear_cache!`. This extracts `clear_cache!` to ensure the common concerns in the abstract adapter.
* Add insert_all to ActiveRecord models (#35077)Bob Lail2019-03-055-11/+107
| | | | | Adds a method to ActiveRecord allowing records to be inserted in bulk without instantiating ActiveRecord models. This method supports options for handling uniqueness violations by skipping duplicate records or overwriting them in an UPSERT operation. ActiveRecord already supports bulk-update and bulk-destroy actions that execute SQL UPDATE and DELETE commands directly. It also supports bulk-read actions through `pluck`. It makes sense for it also to support bulk-creation.
* Allow `truncate` for SQLite3 adapter and add `rails db:seed:replant` (#34779)Bogdan2019-03-041-0/+4
| | | | | | | | | | | | | * Add `ActiveRecord::Base.connection.truncate` for SQLite3 adapter. SQLite doesn't support `TRUNCATE TABLE`, but SQLite3 adapter can support `ActiveRecord::Base.connection.truncate` by using `DELETE FROM`. `DELETE` without `WHERE` uses "The Truncate Optimization", see https://www.sqlite.org/lang_delete.html. * Add `rails db:seed:replant` that truncates database tables and loads the seeds Closes #34765
* Deprecate mismatched collation comparison for uniquness validatorRyuta Kamizono2019-03-042-1/+15
| | | | | | | | | | | | | | | | | | | | | In MySQL, the default collation is case insensitive. Since the uniqueness validator enforces case sensitive comparison by default, it frequently causes mismatched collation issues (performance, weird behavior, etc) to MySQL users. https://grosser.it/2009/12/11/validates_uniqness_of-mysql-slow/ https://github.com/rails/rails/issues/1399 https://github.com/rails/rails/pull/13465 https://github.com/gitlabhq/gitlabhq/commit/c1dddf8c7d947691729f6d64a8ea768b5c915855 https://github.com/huginn/huginn/pull/1330#discussion_r55152573 I'd like to deprecate the implicit default enforcing since I frequently experienced the problems in code reviews. Note that this change has no effect to sqlite3, postgresql, and oracle-enhanced adapters which are implemented as case sensitive by default, only affect to mysql2 adapter (I can take a work if sqlserver adapter will support Rails 6.0).
* Merge pull request #35402 from alimi/update-ar-read-regexAaron Patterson2019-02-251-1/+1
|\ | | | | Support read queries with leading characters while preventing writes
| * Update READ_QUERY regexAli Ibrahim2019-02-251-1/+1
| | | | | | | | | | | | | | * The READ_QUERY regex would consider reads to be writes if they started with spaces or parens. For example, a UNION query might have parens around each SELECT - (SELECT ...) UNION (SELECT ...). * It will now correctly treat these queries as reads.
* | Refactor `type_to_sql` to handle converting `limit` to `size` in itselfRyuta Kamizono2019-02-264-67/+60
| | | | | | | | | | Also, improving an argument error message for `limit`, extracting around `type_to_sql` code into schema statements, and more exercise tests.
* | Fix prepared statements caching to be enabled even when query caching is enabledRyuta Kamizono2019-02-263-13/+20
|/ | | | | | | | | | | | Related cbcdecd, 2a56b2d. This is a regression caused by cbcdecd. If query caching is enabled, prepared statement handles are never re-used, since we missed that a query is preprocessed when query caching is enabled, but doesn't keep the `preparable` flag. We should care about that case.
* minor grammar fix [ci skip]Shivam Jain2019-02-241-1/+1
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* Address "warning: in `column': the last argument was passed as a single Hash"Ryuta Kamizono2019-02-212-4/+4
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* Extract `default_uniqueness_comparison` to ease to handle mismatched ↵Ryuta Kamizono2019-02-211-0/+4
| | | | | | | | | | | | | | | | | | collation issues In MySQL, the default collation is case insensitive. Since the uniqueness validator enforces case sensitive comparison by default, it frequently causes mismatched collation issues (performance, weird behavior, etc) to MySQL users. https://grosser.it/2009/12/11/validates_uniqness_of-mysql-slow/ https://github.com/rails/rails/issues/1399 https://github.com/rails/rails/pull/13465 https://github.com/gitlabhq/gitlabhq/commit/c1dddf8c7d947691729f6d64a8ea768b5c915855 https://github.com/huginn/huginn/pull/1330#discussion_r55152573 This extracts `default_uniqueness_comparison` to ease to handle the mismatched collation issues on the connection.
* Merge pull request #35263 from hatch-carl/reduce-postgres-uuid-allocationsRyuta Kamizono2019-02-211-3/+6
|\ | | | | Reduce unused allocations when casting UUIDs for Postgres
| * Reduce unused allocations when casting UUIDs for PostgresCarl Thuringer2019-02-201-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using the subscript method `#[]` on a string has several overloads and rather complex implementation. One of the overloads is the capability to accept a regular expression and then run a match, then return the receiver (if it matched) or one of the groups from the MatchData. The function of the `UUID#cast` method is to cast a UUID to a type and format acceptable by postgres. Naturally UUIDs are supposed to be string and of a certain format, but it had been determined that it was not ideal for the framework to send just any old string to Postgres and allow the engine to complain when "foobar" or "" was sent, being obviously of the wrong format for a valid UUID. Therefore this code was written to facilitate the checking, and if it were not of the correct format, a `nil` would be returned as is conventional in Rails. Now, the subscript method will allocate one or more strings on a match and return one of them, based on the index parameter. However, there is no need for a new string, as a UUID of the correct format is already such, and so long as the format was verified then the string supplied is adequate for consumption by the database. The subscript method also creates a MatchData object which will never be used, and so must eventually be garbage collected. Garbage collection indeed. This innocuous method tends to be called quite a lot, for example if the primary key of a table is a uuid, then this method will be called. If the foreign key of a relation is a UUID, once again this method is called. If that foreign key is belonging to a has_many relationship with dozens of objects, then again dozens of UUIDs shall be cast to a dup of themselves, and spawn dozens of MatchData objects, and so on. So, for users that: * Use UUIDs as primary keys * Use Postgres * Operate on collections of objects This accomplishes a significant savings in total allocations, and may save many garbage collections.
* | PostgreSQL: Support endless range values for range typesRyuta Kamizono2019-02-202-2/+2
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* Fix the regex that extract mismatched foreign key informationRyuta Kamizono2019-02-171-8/+18
| | | | | | | | | | | | | The CI failure for `test_errors_for_bigint_fks_on_integer_pk_table` is due to the poor regex that extract all ``` `(\w+)` ``` like parts from the message (`:foreign_key` should be `"old_car_id"`, but `"engines"`): https://travis-ci.org/rails/rails/jobs/494123455#L1703 I've improved the regex more strictly and have more exercised mismatched foreign key tests. Fixes #35294
* Merge pull request #35297 from yhara/fix-ar-connection-handler-leakRyuta Kamizono2019-02-161-7/+11
|\ | | | | | | Fix possible memory leak of ConnectionHandler
| * Fix possible memory leak of ConnectionHandlerYutaka HARA2019-02-161-7/+11
| | | | | | | | refs #35296
* | Refactor `remove_foreign_key` to delete the foreign key before `alter_table`Ryuta Kamizono2019-02-161-4/+2
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