| Commit message (Collapse) | Author | Age | Files | Lines |
... | |
| | |
| | |
| | |
| | | |
https://buildkite.com/rails/rails/builds/61744#f12cc6cf-7458-4131-917a-9735615f6259/999-1010
|
| | | |
|
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
If we put the `while_preventing_writes` on the connection then the
middleware that sends reads to the primary and ensures they can't write
will not work. The `while_preventing_writes` will only be applied to the
connection which it's called on - which in the case of the middleware is
Ar::Base.
This worked fine if you called it directly like
`OtherDbConn.connection.while_preventing_writes` but Rails didn't have a
way of knowing you wanted to call it on all the connections.
The change here moves the `while_preventing_writes` method from the
connection to the handler so that it can block writes to all queries for
that handler. This will apply to all the connections associated with
that handler.
|
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
This PR moves the `schema_migration` to `migration_context` so that we
can access the `schema_migration` per connection.
This does not change behavior of the SchemaMigration if you are using
one database. This also does not change behavior of any public APIs.
`Migrator` is private as is `MigrationContext` so we can change these as
needed.
We now need to pass a `schema_migration` to `Migrator` so that we can
run migrations on the right connection outside the context of a rake
task.
The bugs this fixes were discovered while debugging the issues around
the SchemaCache on initialization with multiple database. It was clear
that `get_all_versions` wouldn't work without these changes outside the
context of a rake task (because in the rake task we establish a
connection and change AR::Base.connection to the db we're running on).
Because the `SchemaCache` relies on the `SchemaMigration` information we
need to make sure we store it per-connection rather than on
ActiveRecord::Base.
[Eileen M. Uchitelle & Aaron Patterson]
|
| | | |
|
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
* Make ActiveRecord `ConnectionPool.connections` thread-safe.
ConnectionPool documentation is clear on the need to synchronize
access to @connections but also states that public methods do not
require synchronization. Existing code exposed @connections
directly via attr_reader. The fix uses synchronize() to lock
@connections then returns a copy to the caller using Array.dup().
Includes comments on the connections method that thread-safe access
to the connections array does not imply thread-safety of accessing
methods on the actual connections.
Adds a test-case that modifies the pool using a supported method
in one thread while a second thread accesses pool.connections.
The test fails without this patch.
Fixes #36465.
* Update activerecord/test/cases/connection_pool_test.rb
[jeffdoering + Rafael Mendonça França]
|
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
"schema_migrations" table may be hard dropped before, so the reset
migration version should be done in ensure block.
https://buildkite.com/rails/rails/builds/61697#18d6f3ac-2257-4f4b-8efc-4010464c4d9a/999-1011
|
| | |
| | |
| | |
| | | |
https://buildkite.com/rails/rails/builds/61695#373bb1a7-677f-49ec-95e7-a92467fefd60/1076-1084
|
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
"schema_migrations" is hard dropped by some existing tests, so testing
migration in using transactional tests may cause implicit creation and
rollback "schema_migrations" table, it makes migration tests flaky.
https://buildkite.com/rails/rails/builds/61692#42383249-30be-4508-b1fb-a7bb27600c8e/999-1010
https://buildkite.com/rails/rails/builds/61694#6e462ad3-41d8-4e26-95ce-728495b0ac64/999-1010
|
|\ \ \
| | | |
| | | | |
Enable `Layout/EmptyLinesAroundAccessModifier` cop
|
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | | |
We sometimes say "✂️ newline after `private`" in a code review (e.g.
https://github.com/rails/rails/pull/18546#discussion_r23188776,
https://github.com/rails/rails/pull/34832#discussion_r244847195).
Now `Layout/EmptyLinesAroundAccessModifier` cop have new enforced style
`EnforcedStyle: only_before` (https://github.com/rubocop-hq/rubocop/pull/7059).
That cop and enforced style will reduce the our code review cost.
|
|/ / /
| | |
| | |
| | | |
Otherwise `Model.table_exists?` returns the staled cache result.
|
|\ \ \
| | | |
| | | |
| | | |
| | | | |
kamipo/allow_column_name_with_simple_function_call
Allow column name with function (e.g. `length(title)`) as safe SQL string
|
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | | |
Currently, almost all "Dangerous query method" warnings are false alarm.
As long as almost all the warnings are false alarm, developers think
"Let's ignore the warnings by using `Arel.sql()`, it actually is false
alarm in practice.", so I think we should effort to reduce false alarm
in order to make the warnings valuable.
This allows column name with function (e.g. `length(title)`) as safe SQL
string, which is very common false alarm pattern, even in the our
codebase.
Related 6c82b6c99, 6607ecb2a, #36420.
Fixes #32995.
|
|/ / / |
|
| | | |
|
| | |
| | |
| | |
| | |
| | |
| | | |
6c82b6c99d86f37e61f935fb342cccd725d6c7d4
There is no need to be wrapped by `Arel.sql()`.
|
|\ \ \
| | | |
| | | | |
Fix preloading on AR::Relation where records are duplicated by a join
|
| | | | |
|
|\ \ \ \
| | | | |
| | | | | |
Bump rubocop to 0.71
|
| | | | | |
|
|\ \ \ \ \
| |/ / / /
|/| | | | |
Allow quoted identifier string as safe SQL string
|
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | | |
Currently `posts.title` is regarded as a safe SQL string, but
`"posts"."title"` (it is a result of `quote_table_name("posts.title")`)
is regarded as an unsafe SQL string even though a result of
`quote_table_name` should obviously be regarded as a safe SQL string,
since the column name matcher doesn't respect quotation, it is a little
annoying.
This changes the column name matcher to allow quoted identifiers as safe
SQL string, now all results of the `quote_table_name` are regarded as
safe SQL string.
|
|/ / / /
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | | |
This PR proposes moving the schema cache from the connection to the pool
so the connection can ask the pool for the cache. In a future PR our
goal is to be able to read the yaml file from the pool so we can get
rid of the `active_record.check_schema_cache_dump` initializer. This
will fix the issues surrounding dumping the schema cache and mulitple
databases.
Why do we want to get rid of the initializer you ask?
Well I was looking at #34449 and trying to make it work for our usecase
and it revealed A LOT of problems. There are a few issues that I will
fix in remaining PRs with SchemaMigration, but there's a big glaring
issue with this initializer.
When you have an application with multiple databases we'll need to loop
through all the configurations and set the schema cache on those
connections. The problem is on initialization we only have one
connection - the one for Ar::Base. This is fine in a single db
application but not fine in multi-db. If we follow the pattern in #34449
and establish a connection to those other dbs we will end up setting the
cache on the _connection object_ rather than on all connections that
connect for that config.
So even though we looped through the configs and assigned the cache the
cache will not be set (or will be set wrong) once the app is booted
because the connection objects after boot are _different_ than the
connection objects we assigned the cache to.
After trying many different ways to set the schema cache `@tenderlove`
and I came to the conclusion that the initializer is problematic, as is
setting the schema cache twice.
This is part 1 to move the cache to the pool so the cache can read from
the schema cache yaml file instead of setting it when initializing the
app.
To do this we have created a `NullPool` that initializes an empty cache. I
put the `get_schema_cache` and `set_schema_cache` in an `AbstractPool`
so we can share code between `ConnectionPool` and `NullPool` instead of
duplicating code.
Now we only need to set the schema_cache on the pool rather than the
connection. In `discard!` we need to unset the connection from the
schema_cache - we still want the cache just not the connection.
|
|\ \ \ \
| | | | |
| | | | | |
Treat ActiveRecord::Base and ApplicationRecord as "primary"
|
| |/ / /
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | |
| | | | |
When someone has a multi-db application their `ApplicationRecord` will
look like:
```ruby
class ApplicationRecord < ActiveRecord::Base
self.abstract_class = true
connects_to database: { writing: :primary, reading: :replica }
end
```
This will cause us to open 2 connections to ActiveRecord::Base's
database when we actually only want 1. This is because Rails sees
`ApplicationRecord` and thinks it's a new connection, not the existing
`ActiveRecord::Base` connection because the
`connection_specification_name` is different.
This PR changes `ApplicationRecord` classes to consider themselves the
same as the "primary" connection.
Fixes #36382
|
|/ / /
| | |
| | |
| | |
| | |
| | | |
If an sqlite3 table contains a decimal column behind columns with a collation
definition, then parsing the collation of all preceeding columns will fail --
the collation will be missed without notice.
|
|\ \ \
| |/ /
|/| |
| | |
| | | |
guigs/fix-invalid-schema-when-pk-column-has-comment
Fix invalid schema dump when primary key column has a comment
|
| | |
| | |
| | |
| | |
| | |
| | |
| | |
| | | |
Before this fix it would either generate an invalid schema, passing `comment` option twice to `create_table`, or it move the comment from primary key column to the table if table had no comment when the dump was generated.
The situation now is that a comment on primary key will be ignored (not present on schema).
Fixes #29966
|
|/ /
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
sort order
```ruby
$ bundle exec rake test_postgresql
... snip ...
Failure:
CalculationsTest#test_pluck_columns_with_same_name [/home/yahonda/git/rails/activerecord/test/cases/calculations_test.rb:842]:
--- expected
+++ actual
@@ -1 +1 @@
-[["The First Topic", "The Second Topic of the day"], ["The Third Topic of the day", "The Fourth Topic of the day"]]
+[["The Third Topic of the day", "The Fourth Topic of the day"], ["The First Topic", "The Second Topic of the day"]]
```
|
| | |
|
| |
| |
| |
| | |
https://buildkite.com/rails/rails/builds/61384#ad441461-87d8-4bdc-a71f-61921fe2df2e/993-1004
|
| |
| |
| |
| | |
https://buildkite.com/rails/rails/builds/61362#99165d42-172d-4ad5-bf72-b29d8cd44f3e/995-1006
|
|\ \
| | |
| | |
| | |
| | | |
Fix comment for "broken" inverse_of associations
[ci skip]
|
| | | |
|
|/ /
| |
| |
| | |
https://buildkite.com/rails/rails/builds/61358#a78ee50e-30b5-48a2-858f-63eba287d919/1290-1298
|
| |
| |
| |
| | |
And no longer need to except SCHEMA SQLs manually since 0810c07.
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
This reverts commit a1ee4a9ff9d4a3cb255365310ead0dc7b739c6be.
Even if a1ee4a9 is applied, CI is still flakiness.
https://buildkite.com/rails/rails/builds/61252#2c090afa-aa84-4a2b-8b81-9f09219222c6/994-1005
https://buildkite.com/rails/rails/builds/61252#2e55bf83-1bde-44a2-a4f1-b5c3f6820fb4/929-938
Failing tests by whether schema cache is filled or not, it actually
means that whether SCHEMA SQLs are executed or not is not target for the
tests.
So I've reverted commit a1ee4a9 which filling schema cache before
`assert_no_queries`, and replace `assert_no_queries` to
`assert_queries(0)`.
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
Unfortunately, a11a8ff had no effect as long as using bind param, and
was not tested.
This ensures making the intent of a11a8ff, which fall back to type
casting from the connection adapter.
Fixes #35205.
```
% ARCONN=postgresql bundle exec ruby -w -Itest test/cases/relation/where_test.rb -n test_type_casting_nested_joins
Using postgresql
Run options: -n test_type_casting_nested_joins --seed 55730
# Running:
E
Error:
ActiveRecord::WhereTest#test_type_casting_nested_joins:
ActiveRecord::StatementInvalid: PG::InvalidTextRepresentation: ERROR: invalid input syntax for integer: "2-foo"
rails test test/cases/relation/where_test.rb:30
Finished in 0.245778s, 4.0687 runs/s, 0.0000 assertions/s.
1 runs, 0 assertions, 0 failures, 1 errors, 0 skips
```
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
Testing the result of `capture_sql` is fragile, it is due to whether
SCHEMA SQLs are executed or not depends on whether schema cache is
filled or not.
https://buildkite.com/rails/rails/builds/61248#a5b9dc59-ff0c-40c0-b56e-0895662fbc4c/993-1004
https://buildkite.com/rails/rails/builds/61248#1157b389-f2c7-4554-b6e5-a37624a0e74a/996-1005
I've confirmed all `capture_sql` use cases in our code base, all cases
won't expect SCHEMA SQLs are included.
```
% git grep -n capture_sql
test/cases/associations/belongs_to_associations_test.rb:202: sql = capture_sql { comment.post }
test/cases/associations/belongs_to_associations_test.rb:204: assert_not_equal sql, capture_sql { comment.post }
test/cases/associations/has_many_associations_test.rb:169: sql = capture_sql { post.comments.to_a }
test/cases/associations/has_many_associations_test.rb:171: assert_not_equal sql, capture_sql { post.comments.to_a }
test/cases/associations/has_many_associations_test.rb:276: expected_sql = capture_sql { author.thinking_posts.delete_all }
test/cases/associations/has_many_associations_test.rb:281: loaded_sql = capture_sql { author.thinking_posts.delete_all }
test/cases/associations/has_many_associations_test.rb:289: expected_sql = capture_sql { author.posts.delete_all }
test/cases/associations/has_many_associations_test.rb:294: loaded_sql = capture_sql { author.posts.delete_all }
test/cases/associations/left_outer_join_association_test.rb:22: queries = capture_sql do
test/cases/associations/left_outer_join_association_test.rb:49: queries = capture_sql { Author.left_outer_joins(:posts).to_a }
test/cases/associations/left_outer_join_association_test.rb:54: queries = capture_sql { Author.joins(:posts).left_outer_joins(:posts).to_a }
test/cases/associations/left_outer_join_association_test.rb:60: queries = capture_sql { Author.left_outer_joins({}).to_a }
test/cases/associations/left_outer_join_association_test.rb:65: queries = capture_sql { Author.left_outer_joins([]).to_a }
test/cases/associations/left_outer_join_association_test.rb:78: queries = capture_sql { Author.left_outer_joins(:essays).to_a }
test/cases/associations_test.rb:384: log = capture_sql do
test/cases/associations_test.rb:399: log = capture_sql do
test/cases/associations_test.rb:414: log = capture_sql do
test/cases/associations_test.rb:429: log = capture_sql do
test/cases/associations_test.rb:444: log = capture_sql do
test/cases/associations_test.rb:459: log = capture_sql do
test/cases/reflection_test.rb:307: expected_sql = capture_sql { hotel.recipes.to_a }
test/cases/reflection_test.rb:312: loaded_sql = capture_sql { hotel.recipes.to_a }
test/cases/relation_test.rb:212: queries = capture_sql { Author.joins(:posts).merge(Post.joins(:comments)).to_a }
test/cases/relation_test.rb:232: queries = capture_sql { Post.joins(:author, :categorizations).merge(Author.select(:id)).merge(categorizations_with_authors).to_a }
test/cases/relation_test.rb:347: log = capture_sql do
test/cases/scoping/relation_scoping_test.rb:146: log = capture_sql do
test/cases/scoping/relation_scoping_test.rb:159: log = capture_sql do
test/cases/test_case.rb:33: def capture_sql
test/cases/test_case.rb:41: capture_sql { yield }
```
|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
#36293 was an issue for through association with `joins` for a long
time, but since #35864 through association with `left_joins` would also
be affected by the issue.
Implicit through table joins should be appeared before user supplied
joins, otherwise loading through association with joins will cause a
statement invalid error.
Fixes #36293.
```
% ARCONN=postgresql bundle exec ruby -w -Itest test/cases/associations/has_many_through_associations_test
.rb -n test_through_association_with_joins
Using postgresql
Run options: -n test_through_association_with_joins --seed 7116
# Running:
E
Error:
HasManyThroughAssociationsTest#test_through_association_with_joins:
ActiveRecord::StatementInvalid: PG::UndefinedTable: ERROR: missing FROM-clause entry for table "posts"
LINE 1: ... "comments_posts" ON "comments_posts"."post_id" = "posts"."i...
^
: SELECT "comments".* FROM "comments" INNER JOIN "comments" "comments_posts" ON "comments_posts"."post_id" = "posts"."id" INNER JOIN "posts" ON "comments"."post_id" = "posts"."id" WHERE "posts"."author_id" = $1
rails test test/cases/associations/has_many_through_associations_test.rb:61
Finished in 0.388657s, 2.5730 runs/s, 0.0000 assertions/s.
1 runs, 0 assertions, 0 failures, 1 errors, 0 skips
```
|
|\ \
| | |
| | | |
Fix eager loading associations with string joins not to raise NoMethodError
|
| | |
| | |
| | |
| | | |
Fixes #34456.
|
| |/
|/|
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| | |
This partly reverts the effect of d1107f4d.
d1107f4d makes `touch` tracks the mutation whether the `touch` is
occurred by explicit or not.
Existing apps expects that the previous changes tracks only the changes
which is explicit action by users.
I'd revert the implicit `touch` mutation tracking since I'd not like to
break existing apps.
Fixes #36219.
|
|/
|
|
|
|
|
|
|
|
| |
This commit adds "TRANSACTION" to savepoint and commit, rollback statements
because none of savepoint statements were removed by #36153 since they are not "SCHEMA" statements.
Although, only savepoint statements can be labeled as "TRANSACTION"
I think all of transaction related method should add this label.
Follow up #36153
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
transaction
Currently, `committed!`/`rolledback!` will only be attempted for the
first enrolled record in the transaction, that will cause some
problematic behaviors.
The first one problem, `clear_transaction_record_state` won't be called
even if the transaction is finalized except the first enrolled record.
This means that de-duplicated records in the transaction won't refer
latest state (e.g. won't happen rolling back record state).
The second one problem, the enrolled order is not always the same as the
order in which the actions actually happened, the first enrolled record
may succeed no actions (e.g. `destroy` has already succeeded on another
record during `before_destroy`), it will lose to fire any transactional
callbacks.
To avoid both problems, we should attempt `committed!`/`rolledback!` to
all enrolled records in the transaction.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
with `ActiveRecord::BindParameterTest#test_too_many_binds`
sqlite adapter has its own `bind_params_length`, `ActiveRecord::BindParameterTest#test_too_many_binds` respects it.
* Modified `ActiveRecord::BindParameterTest#test_too_many_binds` to show `bind_params_length` value
```
$ git diff
diff --git a/activerecord/test/cases/bind_parameter_test.rb b/activerecord/test/cases/bind_parameter_test.rb
index 85685d1d00..83cd07f1d7 100644
--- a/activerecord/test/cases/bind_parameter_test.rb
+++ b/activerecord/test/cases/bind_parameter_test.rb
@@ -108,6 +108,7 @@ def test_statement_cache_with_sql_string_literal
def test_too_many_binds
bind_params_length = @connection.send(:bind_params_length)
+ p bind_params_length
topics = Topic.where(id: (1 .. bind_params_length).to_a << 2**63)
assert_equal Topic.count, topics.count
$
```
* Executed modified `ActiveRecord::BindParameterTest#test_too_many_binds`
```
$ bin/test test/cases/bind_parameter_test.rb -n test_too_many_binds
Using sqlite3
Run options: -n test_too_many_binds --seed 47321
999
.
Finished in 0.075249s, 13.2892 runs/s, 26.5784 assertions/s.
1 runs, 2 assertions, 0 failures, 0 errors, 0 skips
$
```
|
| |
|
|
|
|
|
|
|
|
| |
* Make scope arity check consistent
* Add test for arity change
[Rob Trame + Rafael Mendonça França]
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
Every database executes different type of sql statement to get metadata then `ActiveRecord::TestCase` ignores these database specific sql statements to make `assert_queries` or `assert_no_queries` work consistently.
Connection adapter already labels these statement by setting "SCHEMA" argument, this pull request makes use of "SCHEMA" argument to ignore metadata queries.
Here are the details of these changes:
* PostgresqlConnectionTest
Each of PostgresqlConnectionTest modified just executes corresponding methods
https://github.com/rails/rails/blob/fef174f5c524edacbcad846d68400e7fe114a15a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb#L182-L195
```ruby
# Returns the current database encoding format.
def encoding
query_value("SELECT pg_encoding_to_char(encoding) FROM pg_database WHERE datname = current_database()", "SCHEMA")
end
# Returns the current database collation.
def collation
query_value("SELECT datcollate FROM pg_database WHERE datname = current_database()", "SCHEMA")
end
# Returns the current database ctype.
def ctype
query_value("SELECT datctype FROM pg_database WHERE datname = current_database()", "SCHEMA")
end
```
* BulkAlterTableMigrationsTest
mysql2 adapter executes `SHOW KEYS FROM ...` to see if there is an index already created as below. I think the main concerns of these tests are how each database adapter creates or drops indexes then ignoring `SHOW KEYS FROM` statement makes sense.
https://github.com/rails/rails/blob/fef174f5c524edacbcad846d68400e7fe114a15a/activerecord/lib/active_record/connection_adapters/mysql/schema_statements.rb#L11
```ruby
execute_and_free("SHOW KEYS FROM #{quote_table_name(table_name)}", "SCHEMA") do |result|
```
* Temporary change not included in this commit to show which statements executed
```diff
$ git diff
diff --git a/activerecord/test/cases/migration_test.rb b/activerecord/test/cases/migration_test.rb
index 8e8ed494d9..df05f9bd16 100644
--- a/activerecord/test/cases/migration_test.rb
+++ b/activerecord/test/cases/migration_test.rb
@@ -854,7 +854,7 @@ def test_adding_indexes
classname = ActiveRecord::Base.connection.class.name[/[^:]*$/]
expected_query_count = {
- "Mysql2Adapter" => 3, # Adding an index fires a query every time to check if an index already exists or not
+ "Mysql2Adapter" => 1, # Adding an index fires a query every time to check if an index already exists or not
"PostgreSQLAdapter" => 2,
}.fetch(classname) {
raise "need an expected query count for #{classname}"
@@ -886,7 +886,7 @@ def test_removing_index
classname = ActiveRecord::Base.connection.class.name[/[^:]*$/]
expected_query_count = {
- "Mysql2Adapter" => 3, # Adding an index fires a query every time to check if an index already exists or not
+ "Mysql2Adapter" => 1, # Adding an index fires a query every time to check if an index already exists or not
"PostgreSQLAdapter" => 2,
}.fetch(classname) {
raise "need an expected query count for #{classname}"
$
```
* Executed these modified tests
```ruby
$ ARCONN=mysql2 bin/test test/cases/migration_test.rb -n /index/
Using mysql2
Run options: -n /index/ --seed 8462
F
Failure:
BulkAlterTableMigrationsTest#test_adding_indexes [/home/yahonda/git/rails/activerecord/test/cases/migration_test.rb:863]:
3 instead of 1 queries were executed.
Queries:
SHOW KEYS FROM `delete_me`
SHOW KEYS FROM `delete_me`
ALTER TABLE `delete_me` ADD UNIQUE INDEX `awesome_username_index` (`username`), ADD INDEX `index_delete_me_on_name_and_age` (`name`, `age`).
Expected: 1
Actual: 3
bin/test test/cases/migration_test.rb:848
F
Failure:
BulkAlterTableMigrationsTest#test_removing_index [/home/yahonda/git/rails/activerecord/test/cases/migration_test.rb:895]:
3 instead of 1 queries were executed.
Queries:
SHOW KEYS FROM `delete_me`
SHOW KEYS FROM `delete_me`
ALTER TABLE `delete_me` DROP INDEX `index_delete_me_on_name`, ADD UNIQUE INDEX `new_name_index` (`name`).
Expected: 1
Actual: 3
bin/test test/cases/migration_test.rb:879
..
Finished in 0.379245s, 10.5473 runs/s, 7.9105 assertions/s.
4 runs, 3 assertions, 2 failures, 0 errors, 0 skips
$
```
* ActiveRecord::ConnectionAdapters::Savepoints
Left `self.ignored_sql` to ignore savepoint related statements because these SQL statements are not related "SCHEMA"
```
self.ignored_sql = [/^SAVEPOINT/, /^ROLLBACK TO SAVEPOINT/, /^RELEASE SAVEPOINT/]
```
https://github.com/rails/rails/blob/fef174f5c524edacbcad846d68400e7fe114a15a/activerecord/lib/active_record/connection_adapters/abstract/savepoints.rb#L10-L20
```ruby
def create_savepoint(name = current_savepoint_name)
execute("SAVEPOINT #{name}")
end
def exec_rollback_to_savepoint(name = current_savepoint_name)
execute("ROLLBACK TO SAVEPOINT #{name}")
end
def release_savepoint(name = current_savepoint_name)
execute("RELEASE SAVEPOINT #{name}")
end
```
|