2.0.0 / 2024-04-17

[flavorjones]

2.0.0 / 2024-04-17

This is a major release which contains some breaking changes, primarily the removal of
long-deprecated functionality. Before upgrading, please make sure to address deprecation warnings
emitted from your application using sqlite3-ruby v1.7.x.

Ruby

• This release drops support for Ruby 2.7. [remove VersionProxy, clean up version branching, and drop Ruby 2.7 support #453] @flavorjones

Packaging

Native (precompiled) gems are now available for Linux Musl. [#442] @flavorjones

Here are the platforms for which native gems are shipped:

• aarch64-linux-gnu (requires: glibc >= 2.29)
• aarch64-linux-musl
• arm-linux-gnu (requires: glibc >= 2.29)
• arm-linux-musl
• arm64-darwin
• x64-mingw32 / x64-mingw-ucrt
• x86-linux-gnu (requires: glibc >= 2.17)
• x86-linux-musl
• x86_64-darwin
• x86_64-linux-gnu (requires: glibc >= 2.17)
• x86_64-linux-musl

⚠ Ruby 3.0 linux users must use Rubygems >= 3.3.22 in order to use these gems.

⚠ Musl linux users should update to Bundler >= 2.5.6 to avoid ruby/rubygems#7432

See the INSTALLATION doc for more information.

Dependencies

• Vendored sqlite is updated to v3.45.3. @flavorjones

Added

• Database#busy_handler_timeout= introduced as an alternative to #busy_timeout= that can be used when it's desired to release the GVL between retries. [Add a busy_handler_timeout setter #443, busy_handler_timeout pt2 #456] @fractaledmind
• Support the SUPER_JOURNAL flag which is an alias for MASTER_JOURNAL as of sqlite 3.33.0. [introduce standard formatting and linting #467] @flavorjones
• Statement#stat and Statement#memused introduced to report statistics. [Implement sqlite3_stmt_status interface #461] @fractaledmind
• Statement#sql and Statement#expanded_sql introduced to retrieve the SQL statement associated with the Statement object. [Possible to make SQLite3::Statement#to_s more useful? #293, Add sql and expanded_sql methods to the statement object #498] @tenderlove
• SQLite3.status introduced to return run-time status and reset high-water marks. See SQLite3::Constants::Status for details. [Add SQLite3.status to call sqlite3_status #520] @wjlroe

Improved

• Avoid leaking memory for statements that are not closed properly. [Always call sqlite3_finalize in deallocate func #392] @haileys
• Moved some C code into Ruby. [Move Statement#initialize to Ruby #451, Move the encoding method to Ruby #455] @tenderlove
• Improve performance of ResultSet hashes. [superfluous work in #ordered_map_for #154, Don't flatten row array before passing to Hash#[] #484, Use a factory method to eliminate "results as hash" check #468] @tenderlove
• Fix a GC compaction issue with busy_handler. [Fix a GC compaction issue with busy_handler #466] @byroot
• Remove unused ResultSet instance variable. [Remove unused iv #469] @tenderlove
• Fix encoding for values passed to custom functions. [Strings Mangled through Custom Function #218, Fix encoding for values passed to custom functions #488] @tenderlove

Changed

• Consistently use SQLite3::Exception or subclasses. Previously some Pragmas methods raised Exception, and Database#execute_batch2 and Database#load_extension raised RuntimeError. [introduce standard formatting and linting #467, use SQLite3::Exception consistently #490] @flavorjones
• Database#columns returns a list of internal frozen strings. [return symbolized keys when using results_as_hash = true #155, Column names should be frozen #474, Intern column names so we always get the same string #486] @tenderlove
• Freeze results that come from the database. [Freeze results that come from the database #480] @tenderlove
• The encoding of a Database is no longer cached. [Don't cache the database encoding #485] @tenderlove
• Database#transaction returns the result of the block when used with a block. [Database#transaction returns block result #508] @alexcwatt
• Database#execute_batch returns the result of the last statement executed. [execute_batch returns result of last statement #512] @alexcwatt

Removed

• Removed class SQLite3::Translator and all related type translation methods which have been deprecated since v1.3.2. [Remove type translation #470] @tenderlove

  If you need to do type translation on values returned from the statement object, please wrap it
  with a delegate object. Here is an example of using a delegate class to implement type
  translation:

  require "sqlite3"
  require "delegate"
  
  db = SQLite3::Database.new(":memory:")
  
  return_value = db.execute_batch2 <<-EOSQL
          CREATE TABLE items (id integer PRIMARY KEY AUTOINCREMENT, name string);
          INSERT INTO items (name) VALUES ("foo");
          INSERT INTO items (name) VALUES ("bar");
  EOSQL
  
  class MyTranslator < DelegateClass(SQLite3::Statement)
    def step
      row = super
      return if done?
  
      row.map.with_index do |item, i|
        case types[i]
        when "integer" # turn all integers to floats
          item.to_f
        when "string" # add "hello" to all strings
          item + "hello"
        end
      end
    end
  end
  
  db.prepare("SELECT * FROM items") do |stmt|
    stmt = MyTranslator.new(stmt)
    while row = stmt.step
      p row
    end
  end

• Removed types and fields readers on row objects, which have been deprecated since
  v1.3.6. [Remove row array wrappers #471] @tenderlove

  Deprecated code looks like this:

  row = @db.execute("select * from foo")
  assert_equal ["blob"], row.first.types

  If you would like to access the "types" associated with a returned query,
  use a prepared statement like this:

  @db.prepare("select * from foo") do |v|
    assert_equal ["blob"], v.types
  end

• Removed support for non-Array bind parameters to methods Database#execute, #execute_batch, and #query, which has been deprecated since v1.3.0. [remove deprecated method signatures (bind params) #511] @flavorjones

  Deprecated code looks like this:

  @db.query("select * from foo where a = ? and b = ? and c = ?", 1, 2, 3)

  For these cases, pass the bind parameters as an array:

  @db.query("select * from foo where a = ? and b = ? and c = ?", [1, 2, 3])

• Removed class SQLite3::VersionProxy which has been deprecated since v1.3.2. [remove VersionProxy, clean up version branching, and drop Ruby 2.7 support #453] @flavorjones

• Removed methods SQLite3::Database::FunctionProxy#count and #set_error which have been broken since at least v1.3.13. [create_function: impossible to call set_error #164, Remove FunctionProxy#count #509, fix: remove FunctionProxy#set_error #510] @alexcwatt @flavorjones

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This discussion was created from the release 2.0.0 / 2024-04-17.