pkgsrc/databases/p5-SQL-Statement/DESCR
sno ccaac3517e Updating databases/p5-SQL-Statement from 1.22 to 1.25
pkgsrc changes:
- Adjust dependencies (mark fullfilled by perl CORE)

Upstream changes:
Version 1.25, release March 15th, 2010
----------------------------------------------
[Bug fixes]
* Keep org_table_names with schema information to allow derived
  table classes to handle as it seems reasonable there
* Separate columns with "\0" in multi-column aggregation to be able to
  difference between ('1','1foo') and ('11','foo')

[Misc]
* More resources added to META.yml

Version 1.24, release March 15th, 2010
----------------------------------------------
[Misc]
* Ignore *.rej in MANIFEST.SKIP (fixes RT #52081 reported by
  Lars Thegler)

[Bug fixes]
* Add missing import of _INSTANCE in SQL::Statement::Function::NumericEval
  fixes RT #52356 - reported by Detlef Pilzecker)
* Fix wrongly discarded DISTINCT clause (RT#53186)

[Improvements]
* Fix parsing errors of plain numbers (RT#16931)
* Fix parsing errors of nested calculation / functions (RT#16931, RT#52356)
* Rewrite result calculation of aggregation functions (simplify code,
  speed up)
* Upgrade Makefile.PL (patch from Alexandr Ciornii) to handle different
  EU::MM versions and abilities properly
* Update documentation to show how 'column_defs' and SQL::Statement::Term
  instances shall be used
* Introduce SQL::Dialect::Role providing ini-style data access to
  SQL::Dialects (patch from Michael Schwern)

[Things that may break your code]
* SQL::Parser now didn't deliver a struct containing 'column_names',
  'computed_columns' and 'set_functions' - it's combined into one member
  'column_defs'.
* Minimum required perl version is now 5.8 - upcoming next version of DBI
  requires perl 5.8, too - and I could simplify some code that's why

Version 1.23, release November 20th, 2009
----------------------------------------------

[Misc]
* Applied patch from Marc Espie which fixes several orthographic
  errors in SQL::Statement::Syntax documentation.
* Added a fixed version of test reported via RT #34121

[Bug fixes]
* Fix an issue in UPDATE command which 'shift's the values from
  the list of parameters which causes there're no more parameters
  left after first row get's updated (Fixes RT #50788)
* Fix aggregate function handling of new code since 1.21_01
* Correct handling of DISTINCT in aggregate functions

[Improvements]
* Add support for tables/columns starting with '_' for CSV and AnyData,
  which is usually forbidden by ANSI SQL
* Add support for inserting multiple lines with one statement
  (fixes RT #31730)
* Handle ANSI 'IS NULL' and CVS/AnyData 'IS NULL' different

[Things that may break your code]
* row_value now expects up to two arguments
2010-03-16 17:30:08 +00:00

19 lines
958 B
Plaintext

The SQL::Statement module implements a pure Perl SQL parsing and execution
engine. While it by no means implements full ANSI standard, it does support
many features including column and table aliases, built-in and user-defined
functions, implicit and explicit joins, complexly nested search conditions,
and other features.
SQL::Statement is a small embeddable Database Management System (DBMS),
this means that it provides all of the services of a simple DBMS except that
instead of a persistant storage mechanism, it has two things:
1) an in-memory storage mechanism that allows you to prepare, execute, and
fetch from SQL statements using temporary tables and
2) a set of software sockets where any author can plug in any storage
mechanism.
There are three main uses for SQL::Statement.
1) to access and manipulate data in CSV, XML, and other formats
2) to build a DBD for a new data source
3) to parse and examine the structure of SQL statements.