COMMONSQL INCOMPATIBILITY
-<<<<<<< .mine
- o Complete sql expressions (see operations.lisp)
-
- nvl (Oracle specific)
- userenv (Oracle specific)
- minus (Oracle specific: does the same as EXCEPT)
- ||
-
-=======
->>>>>>> .r9364
- o variables (e.g., table identifiers) should be instantiated at runtime
-
-<<<<<<< .mine
-=======
- >> 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)
+ 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.
-
->>>>>>> .r9364
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.
* add support for prepared statements
* port Oracle backend to UFFI
-
-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.