1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
2 ;;;; *************************************************************************
3 ;;;; FILE IDENTIFICATION
5 ;;;; Name: mysql-sql.lisp
6 ;;;; Purpose: High-level MySQL interface using UFFI
7 ;;;; Date Started: Feb 2002
11 ;;;; CLSQL users are granted the rights to distribute and use this software
12 ;;;; as governed by the terms of the Lisp Lesser GNU Public License
13 ;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
14 ;;;; *************************************************************************
16 (defpackage #:clsql-mysql
17 (:use #:common-lisp #:clsql-sys #:mysql #:clsql-uffi)
18 (:export #:mysql-database)
19 (:documentation "This is the CLSQL interface to MySQL."))
21 (in-package #:clsql-mysql)
23 ;; if we have :sb-unicode, UFFI will treat :cstring as a UTF-8 string
24 (defun expression-length (query-expression)
25 (length #+sb-unicode (sb-ext:string-to-octets query-expression
26 :external-format :utf8)
27 #-sb-unicode query-expression))
29 ;;; Field conversion functions
31 (defun result-field-names (num-fields res-ptr)
32 (declare (fixnum num-fields))
34 (field-vec (mysql-fetch-fields res-ptr)))
35 (dotimes (i num-fields)
37 (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
38 (name (uffi:convert-from-foreign-string
39 (uffi:get-slot-value field 'mysql-field 'mysql::name))))
43 (defun make-type-list-for-auto (num-fields res-ptr)
44 (declare (fixnum num-fields))
46 (field-vec (mysql-fetch-fields res-ptr)))
47 (dotimes (i num-fields)
49 (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
50 (flags (uffi:get-slot-value field 'mysql-field 'mysql::flags))
51 (unsigned (plusp (logand flags 32)))
52 (type (uffi:get-slot-value field 'mysql-field 'type)))
55 ((#.mysql-field-types#tiny
56 #.mysql-field-types#short
57 #.mysql-field-types#int24)
61 (#.mysql-field-types#long
65 (#.mysql-field-types#longlong
69 ((#.mysql-field-types#double
70 #.mysql-field-types#float
71 #.mysql-field-types#decimal)
76 (nreverse new-types)))
78 (defun canonicalize-types (types num-fields res-ptr)
80 (let ((auto-list (make-type-list-for-auto num-fields res-ptr)))
83 (canonicalize-type-list types auto-list))
89 (defmethod database-initialize-database-type ((database-type (eql :mysql)))
92 (uffi:def-type mysql-mysql-ptr-def (* mysql-mysql))
93 (uffi:def-type mysql-row-def mysql-row)
94 (uffi:def-type mysql-mysql-res-ptr-def (* mysql-mysql-res))
96 (defclass mysql-database (database)
97 ((mysql-ptr :accessor database-mysql-ptr :initarg :mysql-ptr
98 :type mysql-mysql-ptr-def)
99 (server-info :accessor database-server-info :initarg :server-info
102 (defmethod database-type ((database mysql-database))
105 (defmethod database-name-from-spec (connection-spec (database-type (eql :mysql)))
106 (check-connection-spec connection-spec database-type
107 (host db user password &optional port))
108 (destructuring-bind (host db user password &optional port) connection-spec
109 (declare (ignore password))
113 (pathname (namestring host))
119 (integer (write-to-string port))
124 (defmethod database-connect (connection-spec (database-type (eql :mysql)))
125 (check-connection-spec connection-spec database-type
126 (host db user password &optional port))
127 (destructuring-bind (host db user password &optional port) connection-spec
128 (let ((mysql-ptr (mysql-init (uffi:make-null-pointer 'mysql-mysql)))
130 (if (uffi:null-pointer-p mysql-ptr)
131 (error 'sql-connection-error
132 :database-type database-type
133 :connection-spec connection-spec
134 :error-id (mysql-errno mysql-ptr)
135 :message (mysql-error-string mysql-ptr))
136 (uffi:with-cstrings ((host-native host)
138 (password-native password)
140 (socket-native socket))
141 (let ((error-occurred nil))
143 (if (uffi:null-pointer-p
145 mysql-ptr host-native user-native password-native
150 (string (parse-integer port)))
153 (setq error-occurred t)
154 (error 'sql-connection-error
155 :database-type database-type
156 :connection-spec connection-spec
157 :error-id (mysql-errno mysql-ptr)
158 :message (mysql-error-string mysql-ptr)))
160 (make-instance 'mysql-database
161 :name (database-name-from-spec connection-spec
163 :database-type :mysql
164 :connection-spec connection-spec
165 :server-info (uffi:convert-from-cstring
166 (mysql:mysql-get-server-info mysql-ptr))
167 :mysql-ptr mysql-ptr))
168 (cmd "SET SESSION sql_mode='ANSI'"))
169 (uffi:with-cstring (cmd-cs cmd)
170 (if (zerop (mysql-real-query mysql-ptr cmd-cs (expression-length cmd)))
173 (warn "Error setting ANSI mode for MySQL.")
175 (when error-occurred (mysql-close mysql-ptr)))))))))
178 (defmethod database-disconnect ((database mysql-database))
179 (mysql-close (database-mysql-ptr database))
180 (setf (database-mysql-ptr database) nil)
184 (defmethod database-query (query-expression (database mysql-database)
185 result-types field-names)
186 (declare (optimize (speed 3) (safety 0) (debug 0) (space 0)))
187 (let ((mysql-ptr (database-mysql-ptr database)))
188 (uffi:with-cstring (query-native query-expression)
189 (if (zerop (mysql-real-query mysql-ptr query-native
190 (expression-length query-expression)))
191 (let ((res-ptr (mysql-use-result mysql-ptr)))
194 (let ((num-fields (mysql-num-fields res-ptr)))
195 (declare (fixnum num-fields))
196 (setq result-types (canonicalize-types
197 result-types num-fields
200 (loop for row = (mysql-fetch-row res-ptr)
201 for lengths = (mysql-fetch-lengths res-ptr)
202 until (uffi:null-pointer-p row)
204 (do* ((rlist (make-list num-fields))
206 (pos rlist (cdr pos)))
207 ((= i num-fields) rlist)
211 (uffi:deref-array row '(:array
215 (uffi:deref-array lengths '(:array :unsigned-long)
218 (result-field-names num-fields res-ptr))))
219 (mysql-free-result res-ptr))
220 (error 'sql-database-data-error
222 :expression query-expression
223 :error-id (mysql-errno mysql-ptr)
224 :message (mysql-error-string mysql-ptr))))
225 (error 'sql-database-data-error
227 :expression query-expression
228 :error-id (mysql-errno mysql-ptr)
229 :message (mysql-error-string mysql-ptr))))))
231 (defmethod database-execute-command (sql-expression (database mysql-database))
232 (uffi:with-cstring (sql-native sql-expression)
233 (let ((mysql-ptr (database-mysql-ptr database)))
234 (declare (type mysql-mysql-ptr-def mysql-ptr))
235 (if (zerop (mysql-real-query mysql-ptr sql-native
236 (expression-length sql-expression)))
238 (error 'sql-database-data-error
240 :expression sql-expression
241 :error-id (mysql-errno mysql-ptr)
242 :message (mysql-error-string mysql-ptr))))))
245 (defstruct mysql-result-set
246 (res-ptr (uffi:make-null-pointer 'mysql-mysql-res) :type mysql-mysql-res-ptr-def)
247 (types nil :type list)
248 (num-fields 0 :type fixnum)
249 (full-set nil :type boolean))
252 (defmethod database-query-result-set ((query-expression string)
253 (database mysql-database)
254 &key full-set result-types)
255 (uffi:with-cstring (query-native query-expression)
256 (let ((mysql-ptr (database-mysql-ptr database)))
257 (declare (type mysql-mysql-ptr-def mysql-ptr))
258 (if (zerop (mysql-real-query mysql-ptr query-native
259 (expression-length query-expression)))
260 (let ((res-ptr (if full-set
261 (mysql-store-result mysql-ptr)
262 (mysql-use-result mysql-ptr))))
263 (declare (type mysql-mysql-res-ptr-def res-ptr))
264 (if (not (uffi:null-pointer-p res-ptr))
265 (let* ((num-fields (mysql-num-fields res-ptr))
266 (result-set (make-mysql-result-set
268 :num-fields num-fields
272 result-types num-fields
277 (mysql-num-rows res-ptr))
280 (error 'sql-database-data-error
282 :expression query-expression
283 :error-id (mysql-errno mysql-ptr)
284 :message (mysql-error-string mysql-ptr))))
285 (error 'sql-database-data-error
287 :expression query-expression
288 :error-id (mysql-errno mysql-ptr)
289 :message (mysql-error-string mysql-ptr))))))
291 (defmethod database-dump-result-set (result-set (database mysql-database))
292 (mysql-free-result (mysql-result-set-res-ptr result-set))
296 (defmethod database-store-next-row (result-set (database mysql-database) list)
297 (let* ((res-ptr (mysql-result-set-res-ptr result-set))
298 (row (mysql-fetch-row res-ptr))
299 (lengths (mysql-fetch-lengths res-ptr))
300 (types (mysql-result-set-types result-set)))
301 (declare (type mysql-mysql-res-ptr-def res-ptr)
302 (type mysql-row-def row))
303 (unless (uffi:null-pointer-p row)
304 (loop for i from 0 below (mysql-result-set-num-fields result-set)
309 (uffi:deref-array row '(:array (* :unsigned-char)) i)
312 (uffi:deref-array lengths '(:array :unsigned-long) i))))
316 ;; Table and attribute introspection
318 (defmethod database-list-tables ((database mysql-database) &key (owner nil))
319 (declare (ignore owner))
321 ((eql #\5 (char (database-server-info database) 0))
322 (loop for (name type) in (database-query "SHOW FULL TABLES" database nil nil)
323 when (and (string-equal type "base table")
324 (not (and (>= (length name) 11)
325 (string-equal (subseq name 0 11) "_CLSQL_SEQ_"))))
328 (remove-if #'(lambda (s)
329 (and (>= (length s) 11)
330 (string-equal (subseq s 0 11) "_CLSQL_SEQ_")))
331 (mapcar #'car (database-query "SHOW TABLES" database nil nil))))))
333 (defmethod database-list-views ((database mysql-database)
335 (declare (ignore owner))
337 ((eql #\5 (char (database-server-info database) 0))
338 (loop for (name type) in (database-query "SHOW FULL TABLES" database nil nil)
339 when (string-equal type "view")
344 (defmethod database-list-indexes ((database mysql-database)
347 (dolist (table (database-list-tables database :owner owner) result)
349 (append (database-list-table-indexes table database :owner owner)
352 (defmethod database-list-table-indexes (table (database mysql-database)
354 (declare (ignore owner))
356 (rows (database-query
357 (format nil "SHOW INDEX FROM ~A" table)
360 ((null rows) (nreverse results))
361 (let ((col (nth 2 (car rows))))
362 (unless (find col results :test #'string-equal)
363 (push col results)))))
365 (defmethod database-list-attributes ((table string) (database mysql-database)
367 (declare (ignore owner))
370 (format nil "SHOW COLUMNS FROM ~A" table)
373 (defmethod database-attribute-type (attribute (table string)
374 (database mysql-database)
376 (declare (ignore owner))
377 (let ((row (car (database-query
379 "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)
381 (let* ((raw-type (second row))
383 (start-length (position #\( raw-type))
384 (type (if start-length
385 (subseq raw-type 0 start-length)
387 (length (when start-length
388 (parse-integer (subseq raw-type (1+ start-length))
391 (values (ensure-keyword type) length nil (if (string-equal null "YES") 1 0))))))
393 ;;; Sequence functions
395 (defun %sequence-name-to-table (sequence-name)
396 (concatenate 'string "_CLSQL_SEQ_" (sql-escape sequence-name)))
398 (defun %table-name-to-sequence-name (table-name)
399 (and (>= (length table-name) 11)
400 (string-equal (subseq table-name 0 11) "_CLSQL_SEQ_")
401 (subseq table-name 11)))
403 (defmethod database-create-sequence (sequence-name
404 (database mysql-database))
405 (let ((table-name (%sequence-name-to-table sequence-name)))
406 (database-execute-command
407 (concatenate 'string "CREATE TABLE " table-name
408 " (id int NOT NULL PRIMARY KEY AUTO_INCREMENT)")
410 (database-execute-command
411 (concatenate 'string "INSERT INTO " table-name
415 (defmethod database-drop-sequence (sequence-name
416 (database mysql-database))
417 (database-execute-command
418 (concatenate 'string "DROP TABLE " (%sequence-name-to-table sequence-name))
421 (defmethod database-list-sequences ((database mysql-database)
423 (declare (ignore owner))
424 (mapcan #'(lambda (s)
425 (let ((sn (%table-name-to-sequence-name (car s))))
427 (database-query "SHOW TABLES" database nil nil)))
429 (defmethod database-set-sequence-position (sequence-name
431 (database mysql-database))
432 (database-execute-command
433 (format nil "UPDATE ~A SET id=~A" (%sequence-name-to-table sequence-name)
436 (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
438 (defmethod database-sequence-next (sequence-name (database mysql-database))
440 (database-execute-command
441 (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)
442 " SET id=LAST_INSERT_ID(id+1)")
444 (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database))))
446 (defmethod database-sequence-last (sequence-name (database mysql-database))
448 (caar (database-query
449 (concatenate 'string "SELECT id from "
450 (%sequence-name-to-table sequence-name))
451 database :auto nil))))
453 (defmethod database-create (connection-spec (type (eql :mysql)))
454 (destructuring-bind (host name user password) connection-spec
455 (let ((database (database-connect (list host "" user password)
457 (setf (slot-value database 'clsql-sys::state) :open)
459 (database-execute-command (format nil "create database ~A" name) database)
460 (database-disconnect database)))))
462 (defmethod database-destroy (connection-spec (type (eql :mysql)))
463 (destructuring-bind (host name user password) connection-spec
464 (let ((database (database-connect (list host "" user password)
466 (setf (slot-value database 'clsql-sys::state) :open)
468 (database-execute-command (format nil "drop database ~A" name) database)
469 (database-disconnect database)))))
471 (defmethod database-probe (connection-spec (type (eql :mysql)))
472 (when (find (second connection-spec) (database-list connection-spec type)
473 :test #'string-equal)
476 (defmethod database-list (connection-spec (type (eql :mysql)))
477 (destructuring-bind (host name user password &optional port) connection-spec
478 (declare (ignore name))
479 (let ((database (database-connect (list host "mysql" user password port) type)))
482 (setf (slot-value database 'clsql-sys::state) :open)
483 (mapcar #'car (database-query "show databases" database :auto nil)))
485 (database-disconnect database)
486 (setf (slot-value database 'clsql-sys::state) :closed))))))
489 ;;; Prepared statements
491 (defclass mysql-stmt ()
492 ((database :initarg :database :reader database)
493 (stmt :initarg :stmt :accessor stmt)
494 (input-bind :initarg :input-bind :reader input-bind)
495 (output-bind :initarg :output-bind :reader output-bind)
496 (types :initarg :types :reader types)
497 (result-set :initarg :result-set :reader result-set)
498 (num-fields :initarg :num-fields :reader num-fields)
499 (field-names :initarg :field-names :accessor stmt-field-names)
500 (length-ptr :initarg :length-ptr :reader length-ptr)
501 (is-null-ptr :initarg :is-null-ptr :reader is-null-ptr)
502 (result-types :initarg :result-types :reader result-types)))
504 (defun clsql-type->mysql-type (type)
506 ((in type :null) mysql-field-types#null)
507 ((in type :int :integer) mysql-field-types#long)
508 ((in type :short) mysql-field-types#short)
509 ((in type :bigint) mysql-field-types#longlong)
510 ((in type :float :double :number) mysql-field-types#double)
511 ((and (consp type) (in (car type) :char :string :varchar)) mysql-field-types#var-string)
512 ((or (eq type :blob) (and (consp type) (in (car type) :blob))) mysql-field-types#var-string)
514 (error 'sql-user-error
516 (format nil "Unknown clsql type ~A." type)))))
519 (defmethod database-prepare (sql-stmt types (database mysql-database) result-types field-names)
520 (let* ((mysql-ptr (database-mysql-ptr database))
521 (stmt (mysql-stmt-init mysql-ptr)))
522 (when (uffi:null-pointer-p stmt)
523 (error 'sql-database-error
524 :error-id (mysql-errno mysql-ptr)
525 :message (mysql-error-string mysql-ptr)))
527 (uffi:with-cstring (native-query sql-stmt)
528 (unless (zerop (mysql-stmt-prepare stmt native-query (expression-length sql-stmt)))
529 (mysql-stmt-close stmt)
530 (error 'sql-database-error
531 :error-id (mysql-errno mysql-ptr)
532 :message (mysql-error-string mysql-ptr))))
534 (unless (= (mysql-stmt-param-count stmt) (length types))
535 (mysql-stmt-close stmt)
536 (error 'sql-database-error
538 (format nil "Mysql param count (~D) does not match number of types (~D)"
539 (mysql-stmt-param-count stmt) (length types))))
541 (let ((rs (mysql-stmt-result-metadata stmt)))
542 (when (uffi:null-pointer-p rs)
543 (warn "mysql_stmt_result_metadata returned NULL")
545 (mysql-stmt-close stmt)
547 (error 'sql-database-error
548 :message "mysql_stmt_result_metadata returned NULL"))
550 (let ((input-bind (uffi:allocate-foreign-object 'mysql-bind (length types)))
551 (mysql-types (mapcar 'clsql-type->mysql-type types))
552 field-vec num-fields is-null-ptr output-bind length-ptr)
555 (dotimes (i (length types))
556 (let* ((binding (uffi:deref-array input-bind '(:array mysql-bind) i)))
557 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type)
559 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)))
562 (unless (uffi:null-pointer-p rs)
563 (setq field-vec (mysql-fetch-fields rs)
564 num-fields (mysql-num-fields rs)
565 is-null-ptr (uffi:allocate-foreign-object :byte num-fields)
566 output-bind (uffi:allocate-foreign-object 'mysql-bind num-fields)
567 length-ptr (uffi:allocate-foreign-object :unsigned-long num-fields))
568 (dotimes (i num-fields)
570 (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
571 (type (uffi:get-slot-value field 'mysql-field 'type))
572 (binding (uffi:deref-array output-bind '(:array mysql-bind) i)))
573 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type) type)
575 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)
576 #+need-to-allocate-foreign-object-for-this
577 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::is-null)
578 (+ i (uffi:pointer-address is-null-ptr)))
579 #+need-to-allocate-foreign-object-for-this
580 (setf (uffi:get-slot-value binding 'mysql-bind 'length)
581 (+ (* i 8) (uffi:pointer-address length-ptr)))
584 ((#.mysql-field-types#var-string #.mysql-field-types#string
585 #.mysql-field-types#tiny-blob #.mysql-field-types#blob
586 #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
587 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 1024)
588 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
589 (uffi:allocate-foreign-object :unsigned-char 1024)))
590 (#.mysql-field-types#tiny
591 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
592 (uffi:allocate-foreign-object :byte)))
593 (#.mysql-field-types#short
594 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
595 (uffi:allocate-foreign-object :short)))
596 (#.mysql-field-types#long
597 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
598 ;; segfaults if supply :int on amd64
599 (uffi:allocate-foreign-object :long)))
601 (#.mysql-field-types#longlong
602 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
603 (uffi:allocate-foreign-object :long)))
604 (#.mysql-field-types#float
605 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
606 (uffi:allocate-foreign-object :float)))
607 (#.mysql-field-types#double
608 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
609 (uffi:allocate-foreign-object :double)))
610 ((#.mysql-field-types#time #.mysql-field-types#date
611 #.mysql-field-types#datetime #.mysql-field-types#timestamp)
612 (uffi:allocate-foreign-object 'mysql-time))
614 (error "mysql type ~D not supported." type)))))
616 (unless (zerop (mysql-stmt-bind-result stmt output-bind))
617 (mysql-stmt-close stmt)
618 (error 'sql-database-error
619 :error-id (mysql-stmt-errno stmt)
620 :message (uffi:convert-from-cstring
621 (mysql-stmt-error stmt)))))
623 (make-instance 'mysql-stmt
626 :num-fields num-fields
627 :input-bind input-bind
628 :output-bind output-bind
630 :result-types result-types
631 :length-ptr length-ptr
632 :is-null-ptr is-null-ptr
634 :field-names field-names)))))
637 (defmethod database-bind-parameter ((stmt mysql-stmt) position value)
638 ;; FIXME: will need to allocate bind structure. This should probably be
639 ;; done in C since the API is not mature and may change
640 (let ((binding (uffi:deref-array (input-bind stmt) '(:array mysql-bind) (1- position)))
641 (type (nth (1- position) (types stmt))))
642 (setf (uffi:get-slot-value binding 'mysql-bind 'length) 0)
645 (when (is-null-ptr stmt)
646 (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 1)))
648 (when (is-null-ptr stmt)
649 (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 0))
651 (#.mysql-field-types#long
652 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer) value))
654 (warn "Unknown input bind type ~D." type))
658 (defmethod database-run-prepared ((stmt mysql-stmt))
660 (when (input-bind stmt)
661 (unless (zerop (mysql-stmt-bind-param (stmt stmt) (input-bind stmt)))
662 (error 'sql-database-error
663 :error-id (mysql-stmt-errno (stmt stmt))
664 :message (uffi:convert-from-cstring
665 (mysql-stmt-error (stmt stmt))))))
667 (unless (zerop (mysql-stmt-execute (stmt stmt)))
668 (error 'sql-database-error
669 :error-id (mysql-stmt-errno (stmt stmt))
670 :message (uffi:convert-from-cstring
671 (mysql-stmt-error (stmt stmt)))))
673 (unless (zerop (mysql-stmt-store-result (stmt stmt)))
674 (error 'sql-database-error
675 :error-id (mysql-stmt-errno (stmt stmt))
676 :message (uffi:convert-from-cstring
677 (mysql-stmt-error (stmt stmt)))))
678 (database-fetch-prepared-rows stmt))
681 (defun database-fetch-prepared-rows (stmt)
682 (do ((rc (mysql-stmt-fetch (stmt stmt)) (mysql-stmt-fetch (stmt stmt)))
683 (num-fields (num-fields stmt))
685 ((not (zerop rc)) (nreverse rows))
687 (loop for i from 0 below num-fields
690 (not (zerop (uffi:ensure-char-integer
691 (uffi:deref-array (is-null-ptr stmt) '(:array :byte) i))))))
693 (let* ((bind (uffi:deref-array (output-bind stmt) '(:array mysql-bind) i))
694 (type (uffi:get-slot-value bind 'mysql-bind 'mysql::buffer-type))
695 (buffer (uffi:get-slot-value bind 'mysql-bind 'mysql::buffer)))
697 ((#.mysql-field-types#var-string #.mysql-field-types#string
698 #.mysql-field-types#tiny-blob #.mysql-field-types#blob
699 #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
700 (uffi:convert-from-foreign-string buffer))
701 (#.mysql-field-types#tiny
702 (uffi:ensure-char-integer
703 (uffi:deref-pointer buffer :byte)))
704 (#.mysql-field-types#short
705 (uffi:deref-pointer buffer :short))
706 (#.mysql-field-types#long
707 (uffi:deref-pointer buffer :int))
709 (#.mysql-field-types#longlong
710 (uffi:deref-pointer buffer :long))
711 (#.mysql-field-types#float
712 (uffi:deref-pointer buffer :float))
713 (#.mysql-field-types#double
714 (uffi:deref-pointer buffer :double))
715 ((#.mysql-field-types#time #.mysql-field-types#date
716 #.mysql-field-types#datetime #.mysql-field-types#timestamp)
717 (let ((year (uffi:get-slot-value buffer 'mysql-time 'mysql::year))
718 (month (uffi:get-slot-value buffer 'mysql-time 'mysql::month))
719 (day (uffi:get-slot-value buffer 'mysql-time 'mysql::day))
720 (hour (uffi:get-slot-value buffer 'mysql-time 'mysql::hour))
721 (minute (uffi:get-slot-value buffer 'mysql-time 'mysql::minute))
722 (second (uffi:get-slot-value buffer 'mysql-time 'mysql::second)))
724 (make-time :year year :month month :day day :hour hour
725 :minute minute :second second))))
734 (defmethod database-free-prepared ((stmt mysql-stmt))
735 (with-slots (stmt) stmt
736 (mysql-stmt-close stmt))
740 ;;; Database capabilities
742 (defmethod db-type-use-column-on-drop-index? ((db-type (eql :mysql)))
745 (defmethod db-type-has-views? ((db-type (eql :mysql)))
747 #-mysql-client-v5 nil)
749 (defmethod db-type-has-subqueries? ((db-type (eql :mysql)))
750 #+(or mysql-client-v4.1 mysql-client-v5) t
751 #-(or mysql-client-v4.1 mysql-client-v5) nil)
753 (defmethod db-type-has-boolean-where? ((db-type (eql :mysql)))
754 #+(or mysql-client-v4.1 mysql-client-v5) t
755 #-(or mysql-client-v4.1 mysql-client-v5) nil)
757 (defmethod db-type-has-union? ((db-type (eql :mysql)))
758 (not (eql (schar mysql::*mysql-client-info* 0) #\3)))
760 (defmethod db-type-transaction-capable? ((db-type (eql :mysql)) database)
761 (let ((tuple (car (database-query "SHOW VARIABLES LIKE 'HAVE_INNODB'" database :auto nil))))
762 (and tuple (string-equal "YES" (second tuple)))))
764 (defmethod db-type-has-prepared-stmt? ((db-type (eql :mysql)))
765 #+(or mysql-client-v4.1 mysql-client-v5) t
766 #-(or mysql-client-v4.1 mysql-client-v5) nil)
768 (when (clsql-sys:database-type-library-loaded :mysql)
769 (clsql-sys:initialize-database-type :database-type :mysql))