| Commit message (Collapse) | Author | Age | Files | Lines |
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Related #25174.
`db:schema:load` doesn't work with subdirectories like previous
`db:migrate:status`. `Migrator.migration_files` should be used in
`assume_migrated_upto_version` to fix the issue.
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Sharing `options` causes some unexpected behavior. If `limit: 2` is
specified, this means that 2 bytes integer for a reference id column and
2 chars string for a reference type column. Another example, if
`unsigned: true` is specified, this means that unsigned integer for a
reference id column, but a invalid option for a reference type column.
So `options` should not be shared with a reference type column.
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`valid_type?` should accept only supported types
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`valid_type?` is used in schema dumper to determine if a type is
supported. So if `valid_type?(:foobar)` is true, it means that schema
dumper is allowed to create `t.foobar`. But it doesn't work. I think
that `valid_type?` should accept only supported types.
https://github.com/rails/rails/blob/v5.1.0.beta1/activerecord/lib/active_record/schema_dumper.rb#L135-L142
```ruby
columns.each do |column|
raise StandardError, "Unknown type '#{column.sql_type}' for column '#{column.name}'" unless @connection.valid_type?(column.type)
next if column.name == pk
type, colspec = @connection.column_spec(column)
tbl.print " t.#{type} #{column.name.inspect}"
tbl.print ", #{format_colspec(colspec)}" if colspec.present?
tbl.puts
end
```
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Follow up of #26266.
The default type of `primary_key` and `references` were changed to
`bigint` since #26266. But `create_join_table` column type is still
`integer`. It should respect `references` column type.
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Actually `index_name_length` depend on `max_identifier_length`, not
always 63.
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`supports_migrations?` was added at 4160b518 to determine if schema
statements (`create_table`, `drop_table`, etc) are implemented in the
adapter. But all tested databases has been supported migrations since
a4fc93c3 at least.
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Push `valid_type?` up to abstract adapter
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`valid_type?` should return true if a type exists in
`native_database_types` at least.
https://github.com/rails/rails/blob/v5.1.0.beta1/activerecord/lib/active_record/schema_dumper.rb#L136
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Currently `change_column` cannot drop default if `null: false` is
specified at the same time. This change fixes the issue.
```ruby
# cannot drop default
change_column "tests", "contributor", :boolean, default: nil, null: false
# we need the following workaround currently
change_column "tests", "contributor", :boolean, null: false
change_column "tests", "contributor", :boolean, default: nil
```
Closes #26582
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Deprecate AbstractAdapter#verify! with arguments
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kamipo/fix_remove_reference_to_multiple_foreign_keys_in_the_same_table
Fix `remove_reference` to multiple foreign keys in the same table
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Originally `quoted_id` was used in legacy quoting mechanism. Now we use
type casting mechanism for that. Let's deprecate `quoted_id`.
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Fixes #26556.
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The native timestamp type in MySQL is different from datetime type.
Internal representation of the timestamp type is UNIX time, This means
that timestamp columns are affected by time zone.
```
> SET time_zone = '+00:00';
Query OK, 0 rows affected (0.00 sec)
> INSERT INTO time_with_zone(ts,dt) VALUES (NOW(),NOW());
Query OK, 1 row affected (0.02 sec)
> SELECT * FROM time_with_zone;
+---------------------+---------------------+
| ts | dt |
+---------------------+---------------------+
| 2016-02-07 22:11:44 | 2016-02-07 22:11:44 |
+---------------------+---------------------+
1 row in set (0.00 sec)
> SET time_zone = '-08:00';
Query OK, 0 rows affected (0.00 sec)
> SELECT * FROM time_with_zone;
+---------------------+---------------------+
| ts | dt |
+---------------------+---------------------+
| 2016-02-07 14:11:44 | 2016-02-07 22:11:44 |
+---------------------+---------------------+
1 row in set (0.00 sec)
```
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[Arthur Nogueira Neves & Matthew Draper]
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This ensures multiple threads inside a transactional test to see consistent
database state.
When a system test starts Puma spins up one thread and Capybara spins up
another thread. Because of this when tests are run the database cannot
see what was inserted into the database on teardown. This is because
there are two threads using two different connections.
This change uses the statement cache to lock the threads to using a
single connection ID instead of each not being able to see each other.
This code only runs in the fixture setup and teardown so it does not
affect real production databases.
When a transaction is opened we set `lock_thread` to `Thread.current` so
we can keep track of which connection the thread is using. When we
rollback the transaction we unlock the thread and then there will be no
left-over data in the database because the transaction will roll back
the correct connections.
[ Eileen M. Uchitelle, Matthew Draper ]
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Extra `data_source_exists?(table_name)` is unneeded if
`drop_table(table_name, if_exists: true)` directly.
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Fixes CI failure caused by #27961.
https://travis-ci.org/rails/rails/jobs/201472146#L2390-L2409
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Simplify and optimize Postgres query for primary_keys()
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primary_keys(table) needs to query various metadata tables in Postgres
to determine the primary key for the table. Previously, it did so using
a complex common table expression against pg_constraint and
pg_attribute.
This patch simplifies the query by using information_schema tables.
This simplifies the logic, making the query far easier to understand,
and additionally avoids an expensive unnest, window function query, and
common table expression.
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knowledge about an index type
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Fix `remove_index` to be able to remove expression indexes
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Fixes #26635, #26641.
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The `default` arg of `index_name_exists?` makes to optional
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The `default` arg of `index_name_exists?` is only used the adapter does
not implemented `indexes`. But currently all adapters implemented
`indexes` (See #26688). Therefore the `default` arg is never used.
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Extract `quoted_binary` and use it rather than override `_quote`
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Each databases have different binary representation. Therefore all
adapters overrides `_quote` for quoting binary.
Extract `quoted_binary` for quoting binary and use it rather than
override `_quote`.
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Closes #27980
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Closes #27979
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`supports_primary_key?` was added to determine if `primary_key` is
implemented in the adapter in f060221. But we already use `primary_key`
without `supports_primary_key?` (207f266, 5f3cf42) and using
`supports_primary_key?` has been removed in #1318. This means that
`supports_primary_key?` is no longer used in the internal and Active
Record doesn't work without `primary_key` is implemented (all adapters
must implement `primary_key`).
Closes #27977
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Currently schema dumper lost the unsigned option when primary key is
defined as bigint with unsigned. This commit fixes the issue.
Closes #27960
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This reverts commit d6529af2954a67bd57fda45286fa9cfd0ff6b5ac.
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primary_keys(table) needs to query various metadata tables in Postgres to
determine the primary key for the table. Previously, it did so using a
complex common table expression against pg_constraint and pg_attribute.
This patch simplifies the query by joining pg_index against pg_attribute
instead of going through pg_constraint. This avoids an expensive unnest,
window function query, and common table expression.
EXPLAINing these queries in Postgres against a database with a single
table with a composite primary key shows a 66% reduction in the plan and
execute latencies. This is significant during application startup time,
especially against very large schemas, where these queries would be even
slower and more numerous.
Closes #27949
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Column options are passed as an hash args then used as `options` hash in
`add_column_options!`. Converting args to attributes is inconvinient for
using options as an hash.
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kamipo/pk_and_ref_columns_should_be_identical_type
`primary_key` and `references` columns should be identical type
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Follow up to #26266.
The default type of `primary_key` and `references` were changed to
`bigint` since #26266. But legacy migration and sqlite3 adapter should
keep its previous behavior.
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kamipo/decouple_building_arel_ast_for_uniqueness_validator
Decouple the building Arel ASTs for uniqueness validator
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These methods are obviously for internal use.
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Currently uniqueness validator is coupled with building Arel ASTs.
This commit extracts `WhereClauseFactory#build_for_case_sensitive` for
decouple the building Arel ASTs.
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Restore the behaviour of the compatibility layer for integer-like PKs
* kamipo/fix_mysql_pk_dumping_correctly:
Restore custom primary key tests lost at #26266
Restore the behaviour of the compatibility layer for integer-like PKs
Correctly dump integer-like primary key with default nil
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The PR #27384 changed migration compatibility behaviour.
```ruby
class CreateMasterData < ActiveRecord::Migration[5.0]
def change
create_table :master_data, id: :integer do |t|
t.string :name
end
end
end
```
Previously this migration created non-autoincremental primary key
expected. But after the PR, the primary key changed to autoincremental,
it is unexpected.
This change restores the behaviour of the compatibility layer.
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The PR #27384 changed integer-like primary key to be autoincrement
unless an explicit default. This means that integer-like primary key is
restored as autoincrement unless dumping the default nil explicitly.
We should dump integer-like primary key with default nil correctly.
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`ColumnDumper#migration_keys` was extracted to customize keys for
standardized column arguments widths. But the feature was removed in
df84e98. The internal method is no longer used for that.
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