r-cran-rsqlite 0.11.4-3 / usr / lib / R / site-library / RSQLite / ONEWS

Version 0.4-12

* Fix bug in dbListTables for empty databases

Version 0.4-11

* Implemented dbCommit() and dbRollback(). There is also a new
  generic method dbBeginTransaction(), which begins a transaction.
  Note that this is an extension to the DBI interface.

* Update to the SQLite 3 API for fetching records. This means that
  the records are pulled from the database as required, and not
  cached in memory as was previously done.

* Added generic methods dbSendPreparedQuery() and dbGetPreparedQuery()
  which are similiar to dbSendQuery() and dbGetQuery(), but take an
  extra "bind.data" parameter, which is a data frame. The statement
  is assumed to contain bind variables. Bind variables are either
  for a column name (":name" or "@name") or for a column index ("?")
  in the data frame. See http://sqlite.org/capi3ref.html for more details.

  dbGetPreparedQuery(con, "INSERT INTO table1 VALUES (:col1)",
                           data.frame(col1=c(1, 2)) )

  Each bind variable in the query has to be bound only once, either via
  named or positional parameters. If it is not bound or is bound more
  than once (due to a mix or positional/named parameters) an error is
  thrown. Any extra columns in the data frame are ignored.

  If you are having a lot of string parameters, use stringsAsFactors=FALSE
  when creating the bind.data data.frame instance.  You can also use I().

* Added experimental sqliteQuickColumn function that retrieves an entire 
  column from a specified table as quickly as possible.

* The SQLite driver has a new logical parameter "shared.cache" to
  enable the shared-cache mode, which allows multiple connections
  to share a single data and schema cache. See
  http://www.sqlite.org/sharedcache.html

Version 0.4-9

* Upgraded to SQLite 3.3.8

* Use .SQLitePkgName instead of hard-coding the package name when
  using .Call

* dbConnect() now has a logical parameter "loadable.extensions"
  which will allow loading of extensions. See the Loadable
  Extensions documentation:
  http://www.sqlite.org/cvstrac/wiki?p=LoadableExtensions

Version 0.4-4

* Upgraded to SQLite 3.3.7

* Default when building from source is now to compile the included
  version of SQLite and link to it statically

* Fixed unclosed textConnections

Version 0.4-1

* Added a method for dbWriteTable to write table from a text file, e.g.,
  dbWriteTable(con, "tablename", "filename")

* Fixed problems exporting/importing NA's (thanks to Ronngui Huang for
  a very clear bug report).

* Fixed double free() in the C code, a tiny memory leak, and configure now
  builds sqlite properly on 64-bit linux (thanks to Seth Falcon for these).

* dbConnect() now accepts values for the "cache_size" and "sychnronous"
  PRAGMAs ("synchronous" defaults to 0 or "off") to improve
  performance (thanks to Charles Loboz for pointing these out, see the
  file "rsqlitePerf.txt").

Version 0.4-0

* First attempt at using the new SQLite Version 3 API.  This version
  is a bridge to the new API, but it does not make available the new
  capabilities (e.g., prepared statements, data bindings, etc.) but
  prepares us for those new features.

* Clean up some installation code (mainly to make it easy to automatically
  build on Windows, as per Kurt Hornik and Uwe Ligges suggestions).

* Fixed bug that ignored "fetch.default.rec" in SQLite()/dbDriver()
  (as reported by Duncan Murdoch)

* Fixed bug in dbReadTable() that was not recognizing "row.names" in its
  default, thus it now re-creates a data.frame that has been exported
  with dbWriteTable().

* Fixed bug where dbListTables was not listing views (as reported by
  Doug Bates).

* Added code in "configure.in" to determine CC/CFLAGS used in compiling R
  (as suggested by Brian D. Ripley to get it to compile on 64-bit machines).
  As of today, I can't test this myself.

Version 0.3-5

* Documentation typos, trivial packaging changes, as per CRAN maintainer
  request.

Version 0.3-4

* Fixed documentation typos.

Version 0.3-3

* Minor fixes to accommadate R 1.8.0 changes to data.frame subsetting.

* Updated the documentation to use 1.8.0 new S4-style method documentation.

* Updated to SQLite to the latest 2.8.6 (included with RSQLite).

* Added file NAMESPACE.future to prepare for namespace implementation
  at some future release.

Version 0.3-2

* Ported to Windows.  It now installs fine under Windows with

    Rcmd INSTALL RSQLite_0.3-2.tar.gz

  (there's also a binary RSQLite_0.3-2.zip)

* Added code to verify that the SQLite library versions used for
  compilation and at runtime agree.

* Added source sqlite-2.8.3.

* Fixed minor documentation errors and removed the DBI.pdf documentation
  file, which is included in the required DBI package.

* The package now installs as a binary image by default (use the --no-save
  argument to R CMD INSTALL to override this).

Version 0.3-1

* Moved the implementation to version 4 style classes, and it now
  it is fully compliant with the DBI 0.1-3.

* Simplified the core helper R/SQLite functions (w. prefix "sqlite")
  following the ROracle model.

* Updated to sqlite version 2.7.1 (note that if you have an sqlite
  database file from a version prior to 2.6 you'll need to update
  it -- for details see http://www.hwaic.com/sw/sqlite).

Version 0.2-1

* Worked mostly in the configuration;  added the --enable-sqlite and
  --with-sqlite arguments to have the RSQLite configuration also install
  SQLite or locate it, respectively.

Version 0.1-1

* First implementation -- used the RS-DBI.[ch] code (which is the core
  connection/cursor manager) "as is" and modified the RS-MySQL.[hc],
  (which sits directly on top of the MySQL C API) and replace the
  MySQL API calls with SQLite API calls.  This was pretty easy, except
  for the fact that the SQLite API is so minimal (3, yes, 3 C functions)
  with no support for connections, result set (cursors), data types,
  meta-data -- nothing.  So I had to simulate all this. (Actually it
  wasn't too bad).