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* Mention supported PG version in the error message.Prathamesh Sonpatki2016-02-031-1/+1
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* The minimum supported version of PostgreSQL is now >= 9.1Remo Mueller2016-02-021-3/+2
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* Extract `ExplainPrettyPrinter` to appropriate filesRyuta Kamizono2016-02-011-0/+1
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* `OID::Money.precision` is unused since #15239Ryuta Kamizono2016-01-311-6/+0
| | | | | | | | p PostgreSQLAdapter::OID::Money.precision # => 19 p PostgreSQLAdapter::OID::Money.new.precision # => nil
* Revert "Merge pull request #23346 from kamipo/refactor_oid_money_precision"Rafael Mendonça França2016-01-301-1/+7
| | | | | | | This reverts commit ff835f90800a3e4122d64606cb328908c2e0e071, reversing changes made to c4d85dfbc71043e2a746acd310e32f4f04db801a. Reason: This broke the tests. We will add back after investigated.
* Refactor `OID::Money.precision`Ryuta Kamizono2016-01-301-7/+1
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* Merge pull request #20005 from kamipo/default_expression_supportRafael França2016-01-161-3/+8
|\ | | | | Add `:expression` option support on the schema default
| * Fix extract default with CURRENT_DATERyuta Kamizono2016-01-131-3/+8
| | | | | | | | The default 'now'::date is CURRENT_DATE.
* | `last_insert_id_value` and `last_insert_id` are unused anymoreRyuta Kamizono2016-01-151-9/+1
|/ | | | These methods are private and unused from anywhere.
* Make `postgresql_version` publicDerek Prior2015-12-301-5/+5
| | | | | | | | | | | This is useful to libraries that want to feature gate based on the version of PostgreSQL the user is connected to. For instance, I want to know if the user is connected to a version of Postgres that supports concurrent materialized view refreshes. I could add that as a method on the adapter as a PR, but rails has no need for this itself. Rails is already using the postgresql_version for its own feature gating and this makes that possible for other libraries.
* Call the new point behavior `:point`, not `:rails_5_1_point`Sean Griffin2015-12-171-2/+1
| | | | | Since the attributes API is new in Rails 5, we don't actually need to keep the behavior of `attribute :point`, as it's not a breaking change.
* Refactor `AbstractAdapter#initialize`Ryuta Kamizono2015-11-301-2/+2
| | | | `pool` in args is unused anymore. And `config` is used in all adapters.
* Merge pull request #22304 from ↵Yves Senn2015-11-241-6/+12
|\ | | | | | | | | kamipo/schema_dumping_support_for_postgresql_geometric_types Add schema dumping support for PostgreSQL geometric data types
| * Add schema dumping support for PostgreSQL geometric data typesRyuta Kamizono2015-11-241-6/+12
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* | Merge pull request #22214 from ↵Rafael França2015-11-241-1/+1
|\ \ | |/ |/| | | | | kamipo/not_passing_native_database_types_to_table_definition Not passing `native_database_types` to `TableDefinition`
| * Not passing `native_database_types` to `TableDefinition`Ryuta Kamizono2015-11-081-1/+1
| | | | | | | | | | | | The `native_database_types` only used in `TableDefinition` for look up the default `:limit` option. But this is duplicated process with `type_to_sql`. Passing `native_database_types` is not needed.
* | Rename 'key' to 'lock_id' or 'lock_name' for advisory lockingSam Davies2015-11-181-8/+8
| | | | | | | | | | | | | | | | | | - key was a poor choice of name. A key implies something that will unlock a lock. The concept is actually more like a 'lock identifier' - mysql documentation calls this a 'lock name' - postgres documentation calls it a 'lock_id' - Updated variable names to reflect the preferred terminology for the database in question
* | Remove not needed `NATIVE_DATABASE_TYPES` entriesRyuta Kamizono2015-11-161-2/+0
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* Deprecate exception#original_exception in favor of exception#causeYuki Nishijima2015-11-031-4/+4
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* Merge pull request #22122 from ↵Sean Griffin2015-10-301-0/+18
|\ | | | | | | | | samphilipd/sam/manual_locking_on_schema_migrations Make migrations concurrent safe (using advisory locks)
| * Use advisory locks to prevent concurrent migrationsSam Davies2015-10-301-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Addresses issue #22092 - Works on Postgres and MySQL - Uses advisory locks because of two important properties: 1. The can be obtained outside of the context of a transaction 2. They are automatically released when the session ends, so if a migration process crashed for whatever reason the lock is not left open perpetually - Adds get_advisory_lock and release_advisory_lock methods to database adapters - Attempting to run a migration while another one is in process will raise a ConcurrentMigrationError instead of attempting to run in parallel with undefined behavior. This could be rescued and the migration could exit cleanly instead. Perhaps as a configuration option? Technical Notes ============== The Migrator uses generate_migrator_advisory_lock_key to build the key for the lock. In order to be compatible across multiple adapters there are some constraints on this key. - Postgres limits us to 64 bit signed integers - MySQL advisory locks are server-wide so we have to scope to the database - To fulfil these requirements we use a Migrator salt (a randomly chosen signed integer with max length of 31 bits) that identifies the Rails migration process as the owner of the lock. We multiply this salt with a CRC32 unsigned integer hash of the database name to get a signed 64 bit integer that can also be converted to a string to act as a lock key in MySQL databases. - It is important for subsequent versions of the Migrator to use the same salt, otherwise different versions of the Migrator will not see each other's locks.
* | Merge pull request #19511 from larskanis/replace_const_conn_paramsSean Griffin2015-10-291-7/+2
|\ \ | | | | | | PostgreSQL, Replace static connection param list by libpq's dynamic list
| * | PostgreSQL, Replace static connection param list by the one built into libpq.Lars Kanis2015-03-251-7/+2
| | | | | | | | | | | | | | | | | | | | | This makes the connection adapter future-proof regarding to new parameters. To maintain backward compatibility, :requiressl is added by hand. It is deprecated by PostgreSQL since 2003, but still accepted by libpq.
* | | Don't disable errors when turning standard_conforming_strings onHarry Marr2015-10-291-7/+2
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* | | Check standard_conforming_strings is not readonlyHarry Marr2015-10-291-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | In Postgres 8.1 the standard_conforming_strings setting was read-only, meaning you got an error if you tried to update it. By filtering on `context = 'user'` we only try to update the setting if it's user-writable[1]. [1]: http://www.postgresql.org/docs/9.4/static/view-pg-settings.html
* | | Avoid disabling postgres errorsHarry Marr2015-10-281-4/+5
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The standard_conforming_strings setting doesn't exist on all versions of Postgres, but if it does exist, Rails turns it on. Previously this was done by effectively disabling errors on the Postgres connection, issuing a SET to turn the setting on, then re-enabling errors on the connection. However, if you're running pgbouncer in transaction-pooling mode, you can't guarantee that successive calls to `#execute` will be sent to the same pgbouncer-postgres connection, so you can end up disabling errors on a different postgres connection, and never re-enabling them. Future queries on that connection that result in errors (e.g. violating unique constraints) will leave the connection in a bad state where successive queries will fail. This commit sets standard_conforming_strings by issuing an UPDATE to pg_settings, which will update the setting if it exists, and do nothing if it doesn't (rather than erroring out like SET would), which means we can remove the error-disabling code. It's also worth noting that Postgres has allowed standard_conforming_strings to be updated since 8.2 (which is the oldest version Rails supports), so technically we probably don't even need to be defensive here.
* | Do not cache prepared statements that are unlikely to have cache hitsSean Griffin2015-10-201-4/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prior to this commit, Rails makes no differentiation between whether a query uses bind parameters, and whether or not we cache that query as a prepared statement. This leads to the cache populating extremely fast in some cases, with the statements never being reused. In particular, the two problematic cases are `where(foo: [1, 2, 3])` and `where("foo = ?", 1)`. In both cases we'll end up quoting the values rather than using a bind param, causing a cache entry for every value ever used in that query. It was noted that we can probably eventually change `where("foo = ?", 1)` to use a bind param, which would resolve that case. Additionally, on PG we can change our generated query to be `WHERE foo = ANY($1)`, and pass an array for the bind param. I hope to accomplish both in the future. For SQLite and MySQL, we still end up preparing the statements anyway, we just don't cache it. The statement will be cleaned up after it is executed. On postgres, we skip the prepare step entirely, as an API is provided to execute with bind params without preparing the statement. I'm not 100% happy on the way this ended up being structured. I was hoping to use a decorator on the visitor, rather than mixing a module into the object, but the way Arel has it's visitor pattern set up makes it very difficult to extend without inheritance. I'd like to remove the duplication from the various places that are extending it, but that'll require a larger restructuring of that initialization logic. I'm going to take another look at the structure of it soon. This changes the signature of one of the adapter's internals, and will require downstream changes from third party adapters. I'm not too worried about this, as worst case they can simply add the parameter and always ignore it, and just keep their previous behavior. Fixes #21992.
* | applies new doc guidelines to Active Record.Yves Senn2015-10-141-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The focus of this change is to make the API more accessible. References to method and classes should be linked to make it easy to navigate around. This patch makes exzessiv use of `rdoc-ref:` to provide more readable docs. This makes it possible to document `ActiveRecord::Base#save` even though the method is within a separate module `ActiveRecord::Persistence`. The goal here is to bring the API closer to the actual code that you would write. This commit only deals with Active Record. The other gems will be updated accordingly but in different commits. The pass through Active Record is not completely finished yet. A follow up commit will change the spots I haven't yet had the time to update. /cc @fxn
* | Move the methods for schema dumping into `{mysql,postgresql}/schema_dumper.rb`Ryuta Kamizono2015-10-131-48/+2
| | | | | | | | | | Current master branch includes many schema dumping improvements. It extract these features to the appropriate files.
* | Fix a bug with returning_disabled when using the postgresql adapterGeorge Deglin2015-09-201-1/+1
| | | | | | | | The returning_disabled configuration option is required to make postgresql partitioning triggers work. This commit fixes a bug where an invalid query would be made in cases where returning_disabled was true and objects were created with no attributes defined.
* | Remove `@connection` in `StatementPool`Ryuta Kamizono2015-09-201-1/+2
| | | | | | | | | | `@connection` in `StatementPool` is only used for PG adapter. No need for abstract `StatementPool` class.
* | JSON is still an adapter specific type.Sean Griffin2015-08-211-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several changes were made in #21110 which I am strongly opposed to. (this is what I get for going on vacation. :trollface:) No type should be introduced into the generic `ActiveRecord::Type` namespace, and *certainly* should not be registered into the registry unconstrained unless it is supported by *all* adapters (which basically means that it was specified in the ANSI SQL standard). I do not think `# :nodoc:` ing the type is sufficient, as it still makes the code of Rails itself very unclear as to what the role of that class is. While I would argue that this shouldn't even be a super class, and that MySql and PG's JSON types are only superficially duplicated (they might look the same but will change for different reasons in the future). However, I don't feel strongly enough about it as a point of contention (and the biggest cost of harming the blameability has already occured), so I simply moved the superclass into a namespace where its role is absolutely clear. After this change, `attribute :foo, :json` will once again work with MySQL and PG, but not with Sqlite3 or any third party adapters. Unresolved questions -------------------- The types that and adapter publishes (at least those are unique to that adapter, and not adding additional behavior like `MysqlString` should probably be part of the adapter's public API. Should we standardize the namespace for these, and document them?
* | Add a native JSON data type support in MySQLRyuta Kamizono2015-08-181-2/+5
| | | | | | | | | | | | | | | | | | | | As of MySQL 5.7.8, MySQL supports a native JSON data type. Example: create_table :json_data_type do |t| t.json :settings end
* | Return a `Point` object from the PG Point typeSean Griffin2015-06-051-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This introduces a deprecation cycle to change the behavior of the default point type in the PostgreSQL adapter. The old behavior will continue to be available for the immediate future as `:legacy_point`. The current behavior of returning an `Array` causes several problems, the most significant of which is that we cannot differentiate between an array of points, and a point itself in the case of a column with the `point[]` type. The attributes API gives us a reasonable way to have a proper deprecation cycle for this change, so let's take advantage of it. If we like this change, we can also add proper support for the other geometric types (line, lseg, box, path, polygon, and circle), all of which are just aliases for string today. Fixes #20441
* | Updated postgresql documentation link to use latest version [ci skip]Ronak Jangir2015-05-201-4/+4
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* | Remove `require 'arel/visitors/bind_visitor'`Ryuta Kamizono2015-05-191-2/+0
| | | | | | | | | | This line introduced by the commit fd398475 for using `Arel::Visitors::BindVisitor`. Currently it is not used.
* | Eliminate the duplication code of `StatementPool`Ryuta Kamizono2015-05-191-27/+1
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* | Use `select_value` for avoid `ActiveRecord::Result` instance creatingRyuta Kamizono2015-05-051-1/+1
| | | | | | | | | | `exec_query` create `ActiveRecord::Result` instance. It is better to use `select_value` instead of `exec_query` for performance.
* | PostgreSQL: `:collation` support for string and text columnsRyuta Kamizono2015-05-041-1/+3
| | | | | | | | | | | | | | | | | | Example: create_table :foos do |t| t.string :string_en, collation: 'en_US.UTF-8' t.text :text_ja, collation: 'ja_JP.UTF-8' end
* | Freeze static arguments for gsubbrainopia2015-04-021-2/+2
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* | Prefer string patterns for gsubbrainopia2015-04-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://github.com/ruby/ruby/pull/579 - there is a new optimization since ruby 2.2 Previously regexp patterns were faster (since a string was converted to regexp underneath anyway). But now string patterns are faster and better reflect the purpose. Benchmark.ips do |bm| bm.report('regexp') { 'this is ::a random string'.gsub(/::/, '/') } bm.report('string') { 'this is ::a random string'.gsub('::', '/') } bm.compare! end # string: 753724.4 i/s # regexp: 501443.1 i/s - 1.50x slower
* | Reduce memory usage when loading types in PGSean Griffin2015-03-291-4/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | We were never clearing the `PG::Result` object used to query the types when the connection is first established. This would lead to a potentially large amount of memory being retained for the life of the connection. Investigating this issue also revealed several low hanging fruit on the performance of these methods, and the number of allocations has been reduced by ~90%. Fixes #19578
* | PostgreSQL, Use ruby-pg's built-in capabilities for array en-/decoding in C.Lars Kanis2015-03-251-4/+4
| | | | | | | | This obsoletes the ruby based implementations.
* | PostgreSQL, Add input type casts for primitive types.Lars Kanis2015-03-251-0/+10
| | | | | | | | | | | | | | | | | | Ruby-pg's default way to serialize values for transmission to the database is to call #to_s . This however creates a temporary String object for each value. Setting a class based type map avoids the allocation of this additional String. The performance benefit is measurable in microbenchmarks, but not with the overhead of activerecord. However it's free to use and has no drawback.
* | PostgreSQL, Fix OID based type casts in C for primitive types.Lars Kanis2015-03-251-6/+6
|/ | | | | | | | | | The type map was introduced in aafee23, but wasn't properly filled. This mainly adjusts many locations, that expected strings instead of integers or boolean. add_pg_decoders is moved after setup of the StatementPool, because execute_and_clear could potentially make use of it.
* Require pg~>0.18 to ensure Ruby 2.2 compatibilityMatt Brictson2015-03-111-2/+2
| | | | | | | Versions of the pg gem earlier than 0.18.0 cannot be used safely with Ruby 2.2. Specifically, pg 0.17 when used with Ruby 2.2 has a known bug that causes random bits to be added to the end of strings. Further explanation here: https://bitbucket.org/ged/ruby-pg/issue/210/crazy-bytes-being-added-to-record
* Correctly dump `serial` and `bigserial`Ryuta Kamizono2015-03-041-1/+20
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* Add `Column#bigint?` methodRyuta Kamizono2015-03-041-1/+1
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* Allow `:precision` option for time type columnsRyuta Kamizono2015-02-201-0/+4
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* Extract precision from datetime and time columnsRyuta Kamizono2015-02-191-5/+2
| | | | | | | | The cause by which the test suite for the mysql adapter broke in 1502cae (reverted 89ba5bb) is because the precision was not extracted. The rounding problem in mysql adapter has not been fixed, but `mysql_56` helper tested only mysql2 adapter, its behavior was not apparent.