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 ;;; Field conversion functions
25 (defun result-field-names (num-fields res-ptr)
26 (declare (fixnum num-fields))
28 (field-vec (mysql-fetch-fields res-ptr)))
29 (dotimes (i num-fields)
31 (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
32 (name (uffi:convert-from-foreign-string
33 (uffi:get-slot-value field 'mysql-field 'mysql::name))))
37 (defun make-type-list-for-auto (num-fields res-ptr)
38 (declare (fixnum num-fields))
40 (field-vec (mysql-fetch-fields res-ptr)))
41 (dotimes (i num-fields)
43 (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
44 (flags (uffi:get-slot-value field 'mysql-field 'mysql::flags))
45 (unsigned (plusp (logand flags 32)))
46 (type (uffi:get-slot-value field 'mysql-field 'type)))
49 ((#.mysql-field-types#tiny
50 #.mysql-field-types#short
51 #.mysql-field-types#int24)
55 (#.mysql-field-types#long
59 (#.mysql-field-types#longlong
63 ((#.mysql-field-types#double
64 #.mysql-field-types#float
65 #.mysql-field-types#decimal)
70 (nreverse new-types)))
72 (defun canonicalize-types (types num-fields res-ptr)
74 (let ((auto-list (make-type-list-for-auto num-fields res-ptr)))
77 (canonicalize-type-list types auto-list))
83 (defmethod database-initialize-database-type ((database-type (eql :mysql)))
86 (uffi:def-type mysql-mysql-ptr-def (* mysql-mysql))
87 (uffi:def-type mysql-row-def mysql-row)
88 (uffi:def-type mysql-mysql-res-ptr-def (* mysql-mysql-res))
90 (defclass mysql-database (database)
91 ((mysql-ptr :accessor database-mysql-ptr :initarg :mysql-ptr
92 :type mysql-mysql-ptr-def)))
94 (defmethod database-type ((database mysql-database))
97 (defmethod database-name-from-spec (connection-spec (database-type (eql :mysql)))
98 (check-connection-spec connection-spec database-type
99 (host db user password &optional port))
100 (destructuring-bind (host db user password &optional port) connection-spec
101 (declare (ignore password))
105 (pathname (namestring host))
111 (integer (write-to-string port))
116 (defmethod database-connect (connection-spec (database-type (eql :mysql)))
117 (check-connection-spec connection-spec database-type
118 (host db user password &optional port))
119 (destructuring-bind (host db user password &optional port) connection-spec
120 (let ((mysql-ptr (mysql-init (uffi:make-null-pointer 'mysql-mysql)))
122 (if (uffi:null-pointer-p mysql-ptr)
123 (error 'sql-connection-error
124 :database-type database-type
125 :connection-spec connection-spec
126 :error-id (mysql-errno mysql-ptr)
127 :message (mysql-error-string mysql-ptr))
128 (uffi:with-cstrings ((host-native host)
130 (password-native password)
132 (socket-native socket))
133 (let ((error-occurred nil))
135 (if (uffi:null-pointer-p
137 mysql-ptr host-native user-native password-native
142 (string (parse-integer port)))
145 (setq error-occurred t)
146 (error 'sql-connection-error
147 :database-type database-type
148 :connection-spec connection-spec
149 :error-id (mysql-errno mysql-ptr)
150 :message (mysql-error-string mysql-ptr)))
151 (make-instance 'mysql-database
152 :name (database-name-from-spec connection-spec
154 :database-type :mysql
155 :connection-spec connection-spec
156 :mysql-ptr mysql-ptr))
157 (when error-occurred (mysql-close mysql-ptr)))))))))
160 (defmethod database-disconnect ((database mysql-database))
161 (mysql-close (database-mysql-ptr database))
162 (setf (database-mysql-ptr database) nil)
166 (defmethod database-query (query-expression (database mysql-database)
167 result-types field-names)
168 (declare (optimize (speed 3) (safety 0) (debug 0) (space 0)))
169 (let ((mysql-ptr (database-mysql-ptr database)))
170 (uffi:with-cstring (query-native query-expression)
171 (if (zerop (mysql-real-query mysql-ptr query-native
172 (length query-expression)))
173 (let ((res-ptr (mysql-use-result mysql-ptr)))
176 (let ((num-fields (mysql-num-fields res-ptr)))
177 (declare (fixnum num-fields))
178 (setq result-types (canonicalize-types
179 result-types num-fields
182 (loop for row = (mysql-fetch-row res-ptr)
183 for lengths = (mysql-fetch-lengths res-ptr)
184 until (uffi:null-pointer-p row)
186 (do* ((rlist (make-list num-fields))
188 (pos rlist (cdr pos)))
189 ((= i num-fields) rlist)
193 (uffi:deref-array row '(:array
197 (uffi:deref-array lengths '(:array :unsigned-long)
200 (result-field-names num-fields res-ptr))))
201 (mysql-free-result res-ptr))
202 (error 'sql-database-data-error
204 :expression query-expression
205 :error-id (mysql-errno mysql-ptr)
206 :message (mysql-error-string mysql-ptr))))
207 (error 'sql-database-data-error
209 :expression query-expression
210 :error-id (mysql-errno mysql-ptr)
211 :message (mysql-error-string mysql-ptr))))))
213 (defmethod database-execute-command (sql-expression (database mysql-database))
214 (uffi:with-cstring (sql-native sql-expression)
215 (let ((mysql-ptr (database-mysql-ptr database)))
216 (declare (type mysql-mysql-ptr-def mysql-ptr))
217 (if (zerop (mysql-real-query mysql-ptr sql-native
218 (length sql-expression)))
220 (error 'sql-database-data-error
222 :expression sql-expression
223 :error-id (mysql-errno mysql-ptr)
224 :message (mysql-error-string mysql-ptr))))))
227 (defstruct mysql-result-set
228 (res-ptr (uffi:make-null-pointer 'mysql-mysql-res) :type mysql-mysql-res-ptr-def)
229 (types nil :type list)
230 (num-fields 0 :type fixnum)
231 (full-set nil :type boolean))
234 (defmethod database-query-result-set ((query-expression string)
235 (database mysql-database)
236 &key full-set result-types)
237 (uffi:with-cstring (query-native query-expression)
238 (let ((mysql-ptr (database-mysql-ptr database)))
239 (declare (type mysql-mysql-ptr-def mysql-ptr))
240 (if (zerop (mysql-real-query mysql-ptr query-native
241 (length query-expression)))
242 (let ((res-ptr (if full-set
243 (mysql-store-result mysql-ptr)
244 (mysql-use-result mysql-ptr))))
245 (declare (type mysql-mysql-res-ptr-def res-ptr))
246 (if (not (uffi:null-pointer-p res-ptr))
247 (let* ((num-fields (mysql-num-fields res-ptr))
248 (result-set (make-mysql-result-set
250 :num-fields num-fields
254 result-types num-fields
259 (mysql-num-rows res-ptr))
262 (error 'sql-database-data-error
264 :expression query-expression
265 :error-id (mysql-errno mysql-ptr)
266 :message (mysql-error-string mysql-ptr))))
267 (error 'sql-database-data-error
269 :expression query-expression
270 :error-id (mysql-errno mysql-ptr)
271 :message (mysql-error-string mysql-ptr))))))
273 (defmethod database-dump-result-set (result-set (database mysql-database))
274 (mysql-free-result (mysql-result-set-res-ptr result-set))
278 (defmethod database-store-next-row (result-set (database mysql-database) list)
279 (let* ((res-ptr (mysql-result-set-res-ptr result-set))
280 (row (mysql-fetch-row res-ptr))
281 (lengths (mysql-fetch-lengths res-ptr))
282 (types (mysql-result-set-types result-set)))
283 (declare (type mysql-mysql-res-ptr-def res-ptr)
284 (type mysql-row-def row))
285 (unless (uffi:null-pointer-p row)
286 (loop for i from 0 below (mysql-result-set-num-fields result-set)
291 (uffi:deref-array row '(:array (* :unsigned-char)) i)
294 (uffi:deref-array lengths '(:array :unsigned-long) i))))
298 ;; Table and attribute introspection
300 (defmethod database-list-tables ((database mysql-database) &key (owner nil))
301 (declare (ignore owner))
302 (remove-if #'(lambda (s)
303 (and (>= (length s) 11)
304 (string-equal (subseq s 0 11) "_CLSQL_SEQ_")))
305 (mapcar #'car (database-query "SHOW TABLES" database nil nil))))
307 ;; MySQL 4.1 does not support views
308 (defmethod database-list-views ((database mysql-database)
310 (declare (ignore owner))
313 (defmethod database-list-indexes ((database mysql-database)
316 (dolist (table (database-list-tables database :owner owner) result)
318 (append (database-list-table-indexes table database :owner owner)
321 (defmethod database-list-table-indexes (table (database mysql-database)
323 (declare (ignore owner))
325 (rows (database-query
326 (format nil "SHOW INDEX FROM ~A" (string-upcase table))
329 ((null rows) (nreverse results))
330 (let ((col (nth 2 (car rows))))
331 (unless (find col results :test #'string-equal)
332 (push col results)))))
334 (defmethod database-list-attributes ((table string) (database mysql-database)
336 (declare (ignore owner))
339 (format nil "SHOW COLUMNS FROM ~A" table)
342 (defmethod database-attribute-type (attribute (table string)
343 (database mysql-database)
345 (declare (ignore owner))
346 (let ((row (car (database-query
348 "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)
350 (let* ((raw-type (second row))
352 (start-length (position #\( raw-type))
353 (type (if start-length
354 (subseq raw-type 0 start-length)
356 (length (when start-length
357 (parse-integer (subseq raw-type (1+ start-length))
360 (values (ensure-keyword type) length nil (if (string-equal null "YES") 1 0))))))
362 ;;; Sequence functions
364 (defun %sequence-name-to-table (sequence-name)
365 (concatenate 'string "_CLSQL_SEQ_" (sql-escape sequence-name)))
367 (defun %table-name-to-sequence-name (table-name)
368 (and (>= (length table-name) 11)
369 (string-equal (subseq table-name 0 11) "_CLSQL_SEQ_")
370 (subseq table-name 11)))
372 (defmethod database-create-sequence (sequence-name
373 (database mysql-database))
374 (let ((table-name (%sequence-name-to-table sequence-name)))
375 (database-execute-command
376 (concatenate 'string "CREATE TABLE " table-name
377 " (id int NOT NULL PRIMARY KEY AUTO_INCREMENT)")
379 (database-execute-command
380 (concatenate 'string "INSERT INTO " table-name
384 (defmethod database-drop-sequence (sequence-name
385 (database mysql-database))
386 (database-execute-command
387 (concatenate 'string "DROP TABLE " (%sequence-name-to-table sequence-name))
390 (defmethod database-list-sequences ((database mysql-database)
392 (declare (ignore owner))
393 (mapcan #'(lambda (s)
394 (let ((sn (%table-name-to-sequence-name (car s))))
396 (database-query "SHOW TABLES" database nil nil)))
398 (defmethod database-set-sequence-position (sequence-name
400 (database mysql-database))
401 (database-execute-command
402 (format nil "UPDATE ~A SET id=~A" (%sequence-name-to-table sequence-name)
405 (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
407 (defmethod database-sequence-next (sequence-name (database mysql-database))
409 (database-execute-command
410 (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)
411 " SET id=LAST_INSERT_ID(id+1)")
413 (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database))))
415 (defmethod database-sequence-last (sequence-name (database mysql-database))
417 (caar (database-query
418 (concatenate 'string "SELECT id from "
419 (%sequence-name-to-table sequence-name))
420 database :auto nil))))
422 (defmethod database-create (connection-spec (type (eql :mysql)))
423 (destructuring-bind (host name user password &optional port) connection-spec
424 (multiple-value-bind (output status)
425 (clsql-sys:command-output "mysqladmin create -u~A -p~A -h~A~@[ -P~A~] ~A"
427 (if host host "localhost")
430 (if (or (not (eql 0 status))
431 (and (search "failed" output) (search "error" output)))
432 (error 'sql-database-error
434 (format nil "mysql database creation failed with connection-spec ~A."
438 (defmethod database-destroy (connection-spec (type (eql :mysql)))
439 (destructuring-bind (host name user password &optional port) connection-spec
440 (multiple-value-bind (output status)
441 (clsql-sys:command-output "mysqladmin drop -f -u~A -p~A -h~A~@[ -P~A~] ~A"
443 (if host host "localhost")
445 (if (or (not (eql 0 status))
446 (and (search "failed" output) (search "error" output)))
447 (error 'sql-database-error
449 (format nil "mysql database deletion failed with connection-spec ~A."
453 (defmethod database-probe (connection-spec (type (eql :mysql)))
454 (when (find (second connection-spec) (database-list connection-spec type)
455 :key #'car :test #'string-equal)
458 (defmethod database-list (connection-spec (type (eql :mysql)))
459 (destructuring-bind (host name user password &optional port) connection-spec
460 (declare (ignore name))
461 (let ((database (database-connect (list host "mysql" user password port) type)))
464 (setf (slot-value database 'clsql-sys::state) :open)
465 (mapcar #'car (database-query "show databases" database :auto nil)))
467 (database-disconnect database)
468 (setf (slot-value database 'clsql-sys::state) :closed))))))
471 ;;; Prepared statements
473 (defclass mysql-stmt ()
474 ((database :initarg :database :reader database)
475 (stmt :initarg :stmt :accessor stmt)
476 (input-bind :initarg :input-bind :reader input-bind)
477 (output-bind :initarg :output-bind :reader output-bind)
478 (types :initarg :types :reader types)
479 (result-set :initarg :result-set :reader result-set)
480 (num-fields :initarg :num-fields :reader num-fields)
481 (field-names :initarg :field-names :accessor stmt-field-names)
482 (length-ptr :initarg :length-ptr :reader length-ptr)
483 (is-null-ptr :initarg :is-null-ptr :reader is-null-ptr)
484 (result-types :initarg :result-types :reader result-types)))
486 (defun clsql-type->mysql-type (type)
488 ((in type :null) mysql-field-types#null)
489 ((in type :int :integer) mysql-field-types#long)
490 ((in type :short) mysql-field-types#short)
491 ((in type :bigint) mysql-field-types#longlong)
492 ((in type :float :double :number) mysql-field-types#double)
493 ((and (consp type) (in (car type) :char :string :varchar)) mysql-field-types#var-string)
494 ((or (eq type :blob) (and (consp type) (in (car type) :blob))) mysql-field-types#var-string)
496 (error 'sql-user-error
498 (format nil "Unknown clsql type ~A." type)))))
501 (defmethod database-prepare (sql-stmt types (database mysql-database) result-types field-names)
502 (let* ((mysql-ptr (database-mysql-ptr database))
503 (stmt (mysql-stmt-init mysql-ptr)))
504 (when (uffi:null-pointer-p stmt)
505 (error 'sql-database-error
506 :error-id (mysql-errno mysql-ptr)
507 :message (mysql-error-string mysql-ptr)))
509 (uffi:with-cstring (native-query sql-stmt)
510 (unless (zerop (mysql-stmt-prepare stmt native-query (length sql-stmt)))
511 (mysql-stmt-close stmt)
512 (error 'sql-database-error
513 :error-id (mysql-errno mysql-ptr)
514 :message (mysql-error-string mysql-ptr))))
516 (unless (= (mysql-stmt-param-count stmt) (length types))
517 (mysql-stmt-close stmt)
518 (error 'sql-database-error
520 (format nil "Mysql param count (~D) does not match number of types (~D)"
521 (mysql-stmt-param-count stmt) (length types))))
523 (let ((rs (mysql-stmt-result-metadata stmt)))
524 (when (uffi:null-pointer-p rs)
525 (warn "mysql_stmt_result_metadata returned NULL")
527 (mysql-stmt-close stmt)
529 (error 'sql-database-error
530 :message "mysql_stmt_result_metadata returned NULL"))
532 (let ((input-bind (uffi:allocate-foreign-object 'mysql-bind (length types)))
533 (mysql-types (mapcar 'clsql-type->mysql-type types))
534 field-vec num-fields is-null-ptr output-bind length-ptr)
537 (dotimes (i (length types))
538 (let* ((binding (uffi:deref-array input-bind '(:array mysql-bind) i)))
539 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type)
541 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)))
544 (unless (uffi:null-pointer-p rs)
545 (setq field-vec (mysql-fetch-fields rs)
546 num-fields (mysql-num-fields rs)
547 is-null-ptr (uffi:allocate-foreign-object :byte num-fields)
548 output-bind (uffi:allocate-foreign-object 'mysql-bind num-fields)
549 length-ptr (uffi:allocate-foreign-object :unsigned-long num-fields))
550 (dotimes (i num-fields)
552 (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
553 (type (uffi:get-slot-value field 'mysql-field 'type))
554 (binding (uffi:deref-array output-bind '(:array mysql-bind) i)))
555 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type) type)
557 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)
558 #+need-to-allocate-foreign-object-for-this
559 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::is-null)
560 (+ i (uffi:pointer-address is-null-ptr)))
561 #+need-to-allocate-foreign-object-for-this
562 (setf (uffi:get-slot-value binding 'mysql-bind 'length)
563 (+ (* i 8) (uffi:pointer-address length-ptr)))
566 ((#.mysql-field-types#var-string #.mysql-field-types#string
567 #.mysql-field-types#tiny-blob #.mysql-field-types#blob
568 #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
569 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 1024)
570 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
571 (uffi:allocate-foreign-object :unsigned-char 1024)))
572 (#.mysql-field-types#tiny
573 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
574 (uffi:allocate-foreign-object :byte)))
575 (#.mysql-field-types#short
576 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
577 (uffi:allocate-foreign-object :short)))
578 (#.mysql-field-types#long
579 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
580 ;; segfaults if supply :int on amd64
581 (uffi:allocate-foreign-object :long)))
583 (#.mysql-field-types#longlong
584 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
585 (uffi:allocate-foreign-object :long)))
586 (#.mysql-field-types#float
587 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
588 (uffi:allocate-foreign-object :float)))
589 (#.mysql-field-types#double
590 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
591 (uffi:allocate-foreign-object :double)))
592 ((#.mysql-field-types#time #.mysql-field-types#date
593 #.mysql-field-types#datetime #.mysql-field-types#timestamp)
594 (uffi:allocate-foreign-object 'mysql-time))
596 (error "mysql type ~D not supported." type)))))
598 (unless (zerop (mysql-stmt-bind-result stmt output-bind))
599 (mysql-stmt-close stmt)
600 (error 'sql-database-error
601 :error-id (mysql-stmt-errno stmt)
602 :message (uffi:convert-from-cstring
603 (mysql-stmt-error stmt)))))
605 (make-instance 'mysql-stmt
608 :num-fields num-fields
609 :input-bind input-bind
610 :output-bind output-bind
612 :result-types result-types
613 :length-ptr length-ptr
614 :is-null-ptr is-null-ptr
616 :field-names field-names)))))
619 (defmethod database-bind-parameter ((stmt mysql-stmt) position value)
620 ;; FIXME: will need to allocate bind structure. This should probably be
621 ;; done in C since the API is not mature and may change
622 (let ((binding (uffi:deref-array (input-bind stmt) '(:array mysql-bind) (1- position)))
623 (type (nth (1- position) (types stmt))))
624 (setf (uffi:get-slot-value binding 'mysql-bind 'length) 0)
627 (when (is-null-ptr stmt)
628 (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 1)))
630 (when (is-null-ptr stmt)
631 (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 0))
633 (#.mysql-field-types#long
634 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer) value))
636 (warn "Unknown input bind type ~D." type))
640 (defmethod database-run-prepared ((stmt mysql-stmt))
642 (when (input-bind stmt)
643 (unless (zerop (mysql-stmt-bind-param (stmt stmt) (input-bind stmt)))
644 (error 'sql-database-error
645 :error-id (mysql-stmt-errno (stmt stmt))
646 :message (uffi:convert-from-cstring
647 (mysql-stmt-error (stmt stmt))))))
649 (unless (zerop (mysql-stmt-execute (stmt stmt)))
650 (error 'sql-database-error
651 :error-id (mysql-stmt-errno (stmt stmt))
652 :message (uffi:convert-from-cstring
653 (mysql-stmt-error (stmt stmt)))))
655 (unless (zerop (mysql-stmt-store-result (stmt stmt)))
656 (error 'sql-database-error
657 :error-id (mysql-stmt-errno (stmt stmt))
658 :message (uffi:convert-from-cstring
659 (mysql-stmt-error (stmt stmt)))))
660 (database-fetch-prepared-rows stmt))
663 (defun database-fetch-prepared-rows (stmt)
664 (do ((rc (mysql-stmt-fetch (stmt stmt)) (mysql-stmt-fetch (stmt stmt)))
665 (num-fields (num-fields stmt))
667 ((not (zerop rc)) (nreverse rows))
669 (loop for i from 0 below num-fields
672 (not (zerop (uffi:ensure-char-integer
673 (uffi:deref-array (is-null-ptr stmt) '(:array :byte) i))))))
675 (let* ((bind (uffi:deref-array (output-bind stmt) '(:array mysql-bind) i))
676 (type (uffi:get-slot-value bind 'mysql-bind 'mysql::buffer-type))
677 (buffer (uffi:get-slot-value bind 'mysql-bind 'mysql::buffer)))
679 ((#.mysql-field-types#var-string #.mysql-field-types#string
680 #.mysql-field-types#tiny-blob #.mysql-field-types#blob
681 #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
682 (uffi:convert-from-foreign-string buffer))
683 (#.mysql-field-types#tiny
684 (uffi:ensure-char-integer
685 (uffi:deref-pointer buffer :byte)))
686 (#.mysql-field-types#short
687 (uffi:deref-pointer buffer :short))
688 (#.mysql-field-types#long
689 (uffi:deref-pointer buffer :int))
691 (#.mysql-field-types#longlong
692 (uffi:deref-pointer buffer :long))
693 (#.mysql-field-types#float
694 (uffi:deref-pointer buffer :float))
695 (#.mysql-field-types#double
696 (uffi:deref-pointer buffer :double))
697 ((#.mysql-field-types#time #.mysql-field-types#date
698 #.mysql-field-types#datetime #.mysql-field-types#timestamp)
699 (let ((year (uffi:get-slot-value buffer 'mysql-time 'mysql::year))
700 (month (uffi:get-slot-value buffer 'mysql-time 'mysql::month))
701 (day (uffi:get-slot-value buffer 'mysql-time 'mysql::day))
702 (hour (uffi:get-slot-value buffer 'mysql-time 'mysql::hour))
703 (minute (uffi:get-slot-value buffer 'mysql-time 'mysql::minute))
704 (second (uffi:get-slot-value buffer 'mysql-time 'mysql::second)))
706 (make-time :year year :month month :day day :hour hour
707 :minute minute :second second))))
716 (defmethod database-free-prepared ((stmt mysql-stmt))
717 (with-slots (stmt) stmt
718 (mysql-stmt-close stmt))
722 ;;; Database capabilities
724 (defmethod db-type-use-column-on-drop-index? ((db-type (eql :mysql)))
727 (defmethod db-type-has-views? ((db-type (eql :mysql)))
728 #+mysql-client-v5.1 t
729 #-mysql-client-v5.1 nil)
731 (defmethod db-type-has-subqueries? ((db-type (eql :mysql)))
732 #+mysql-client-v4.1 t
733 #-mysql-client-v4.1 nil)
735 (defmethod db-type-has-boolean-where? ((db-type (eql :mysql)))
736 #+mysql-client-v4.1 t
737 #-mysql-client-v4.1 nil)
739 (defmethod db-type-has-union? ((db-type (eql :mysql)))
740 (not (eql (schar mysql::*mysql-client-info* 0) #\3)))
742 (defmethod db-type-transaction-capable? ((db-type (eql :mysql)) database)
743 (let ((tuple (car (database-query "SHOW VARIABLES LIKE 'HAVE_INNODB'" database :auto nil))))
744 (and tuple (string-equal "YES" (second tuple)))))
746 (defmethod db-type-has-prepared-stmt? ((db-type (eql :mysql)))
747 #+mysql-client-v4.1 t
748 #-mysql-client-v4.1 nil)
750 (when (clsql-sys:database-type-library-loaded :mysql)
751 (clsql-sys:initialize-database-type :database-type :mysql))