TESTS TO ADD
-* CACHE-TABLE-QUERIES
-* Test that ":db-kind :key" adds an index for that key. This is complicated by different
- backends showing autogenerated primary key in different ways.
-* Large object testing
-* Test bigint type
+* Test that ":db-kind :key" adds an index for that key. This is complicated by
+ different backends showing autogenerated primary key in different ways.
* :db-constraint tests
-* test *db-auto-sync*
-* test SELECT caching
-* for-each-row macro
-* universal-time
-
-COMMONSQL SPEC
-
-* Incompatible
-
- >> The functional sql interface
-
- SELECT
- o keyword arg :refresh should function as advertised
-
- >> Symbolic SQL syntax
-
- o userenv (Oracle specific but deprecated in Oracle 9)
-
-VARIANCES FROM COMMONSQL
-
-UPDATE-OBJECT-JOINS:
- Rather than simply reading the values for each
- object, to meet CommonSQL spec need to generate a single
- query to read values for all objects, up to max-len count.
-
-COMMIT,ROLLBACK,START-TRANSACTION:
- When COMMIT or ROLLBACK are called outside of WITH-TRANSACTION, an sql
- transaction must be explicitly started first with START-TRANSACTION.
+* Number and Char field types
+* symbol slot
+* generalized-boolean slot
+* tests for db-reader and db-writer
OPTIMIZATIONS
-* Revisit result-type list creation,perhaps caching
+* Revisit result-type list creation, perhaps caching
+* Rework LIST-ATTRIBUTE-TYPES and LIST-INDEXES such that they exhibit their
+ current behaviours using single database queries.
+* Possible use of cached attribute type information for operations which
+ insert/update records as mentioned in the CommonSQL user guide.
+* Extend caching of generated SQL strings to more complex expressions which
+ are likely to be repeatedly executed many times.
POSSIBLE EXTENSIONS
-* port Oracle backend to UFFI
-* large object support
+* improve large object api and extend to databases beyond postgresql
* add support for prepared statements
-
-NOTES ABOUT THE BACKENDS
-
-MYSQL
-
-drop-index: requires a table to be specified with the :from keyword parameter
-views: mysql does not support views
-queries: nested subqueries are not supported
-syntax: doesn't support the sql concatenation operator (||).
-
-SQLITE
-
-create-view: column-list parameter not supported
-syntax: doesn't support the sql SUBSTRING operator.
+RACE CONDITIONS
+* sql/databases.lisp: *connected-databases* is shared globally but not modified in a threadsafe manner.