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bit column in Postgresql, because solving ambiguity.
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When building the indexes list in PostgreSQL, IndexDefinition objects
are only created if the query for the related attributes really returns
something matching the attributes.
In case it does not, the variables for building the definition objects were
being created but not used.
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Adds support for algorithm option in MySQL indexes
Moves USING and algorithm options upstream
The syntax is still specific to the Adapter, so the actual executed string happens
in the corresponding adapter
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ActiveRecord::ConnectionAdapters::Column
See
https://github.com/rails/rails/blob/28b8ca766e3e7c6c43d3ae900c99f8377153c62/activerecord/lib/active_record/connection_adapters/column.rb#L16
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Closes #9184
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Previously regex did not strip quotation marks where hstore values were multi-line strings.
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fixes #9170
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In an AR model a timestamptz attribute would return a ruby string and AR
tests did not check for any type casting. Previous tests would pass
only because an assert_equal was being used on a Time.utc object, which
will parse the right side of the eq to a valid Time instance for
comparision.
switch to test instance of Time instead of ActiveSupport::TimeWithZone
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When a table or a column is renamed related indexes kept their name. This will lead to confusing names. This patch renames related indexes when a column or a table is renamed. Only indexes with names generated by rails will be renamed. Indexes with custom names will not be renamed.
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because of an ambiguous column name. This happened if the association
model had a default scope that referenced a third table, and the third
table also referenced the original table (with an identical
foreign_key).
Mysql requires that ambiguous columns are deambiguated by using the full
table.column syntax. Postgresql and Sqlite use a different syntax for
updates altogether (and don't tolerate table.name syntax), so the fix
requires always including the full table.column and discarding it later
for Sqlite and Postgresql.
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If we set encoding latin1 for a PostgreSQL database, it calls
PostgreSQLAdapter::create_database with options that have,
among other things:
{ 'encoding' => 'latin1' }
Then, we use reverse_merge(:encoding => "utf8") to setup the default
encoding. In the end, the hash looks like:
{ :encoding => 'utf8', 'encoding' => 'latin1' }
The call to options.symbolize_keys calls to_sym on each_key of this
Hash. It usually means that the encoding passed overwrites the default
utf8, but it's not guaranteed. So, we shouldn't rely on it.
The same was happening in ActiveRecord::ConnectionHandling.
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* dependencies/autoload
* concern
* deprecation
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disable_referential_integrity.
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Fix realization
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Postgresql adapter: fix handling of BC timestamps
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Conflicts:
actionpack/lib/action_controller/metal/mime_responds.rb
activerecord/lib/active_record/attribute_methods.rb
guides/source/working_with_javascript_in_rails.md
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It's sometimes hard to quickly find where deprecated call was performed, especially in case of migrating between Rails versions. So this is an attempt to improve the call stack part of the warning message by providing caller explicitly.
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Remove parsing of character type default values for 8.1 formatting since
Rails doesn't support postgreSQL 8.1 anymore.
Remove misleading comment unrelated to code.
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According to postgreSQL documentation:
(http://www.postgresql.org/docs/8.2/static/catalog-pg-attrdef.html)
we should not be using 'adsrc' field because this field is unaware of
outside changes that could affect the way that default values are
represented. Thus, I changed the queries to use
"pg_get_expr(adbin, adrelid)" instead of the historical "adsrc" field.
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If your database supports setting the isolation level for a transaction,
you can set it like so:
Post.transaction(isolation: :serializable) do
# ...
end
Valid isolation levels are:
* `:read_uncommitted`
* `:read_committed`
* `:repeatable_read`
* `:serializable`
You should consult the documentation for your database to understand the
semantics of these different levels:
* http://www.postgresql.org/docs/9.1/static/transaction-iso.html
* https://dev.mysql.com/doc/refman/5.0/en/set-transaction.html
An `ActiveRecord::TransactionIsolationError` will be raised if:
* The adapter does not support setting the isolation level
* You are joining an existing open transaction
* You are creating a nested (savepoint) transaction
The mysql, mysql2 and postgresql adapters support setting the
transaction isolation level. However, support is disabled for mysql
versions below 5, because they are affected by a bug
(http://bugs.mysql.com/bug.php?id=39170) which means the isolation level
gets persisted outside the transaction.
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Adds migration and type casting support for PostgreSQL Array datatype
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Having column related schema dumper code in the AbstractAdapter. The
code remains the same, but by placing it in the AbstractAdapter, we can
then overwrite it with Adapter specific methods that will help with
Adapter specific data types.
The goal of moving this code here is to create a new migration key for
PostgreSQL's array type. Since any datatype can be an array, the goal is
to have ':array => true' as a migration option, turning the datatype
into an array. I've implemented this in postgres_ext, the syntax is
shown here: https://github.com/dockyard/postgres_ext#arrays
Adds array migration support
Adds array_test.rb outlining the test cases for array data type
Adds pg_array_parser to Gemfile for testing
Adds pg_array_parser to postgresql_adapter (unused in this commit)
Adds schema dump support for arrays
Adds postgres array type casting support
Updates changelog, adds note for inet and cidr support, which I forgot to add before
Removing debugger, Adds pg_array_parser to JRuby platform
Removes pg_array_parser requirement, creates ArrayParser module used by
PostgreSQLAdapter
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