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 '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 (host db user password))
99 (destructuring-bind (host db user password) connection-spec
100 (declare (ignore password))
102 (if host host "localhost")
105 (defmethod database-connect (connection-spec (database-type (eql :mysql)))
106 (check-connection-spec connection-spec database-type (host db user password))
107 (destructuring-bind (host db user password) connection-spec
108 (let ((mysql-ptr (mysql-init (uffi:make-null-pointer 'mysql-mysql)))
110 (if (uffi:null-pointer-p mysql-ptr)
111 (error 'sql-connection-error
112 :database-type database-type
113 :connection-spec connection-spec
114 :error-id (mysql-errno mysql-ptr)
115 :message (mysql-error-string mysql-ptr))
116 (uffi:with-cstrings ((host-native host)
118 (password-native password)
120 (socket-native socket))
121 (let ((error-occurred nil))
123 (if (uffi:null-pointer-p
125 mysql-ptr host-native user-native password-native
126 db-native 0 socket-native 0))
128 (setq error-occurred t)
129 (error 'sql-connection-error
130 :database-type database-type
131 :connection-spec connection-spec
132 :error-id (mysql-errno mysql-ptr)
133 :message (mysql-error-string mysql-ptr)))
134 (make-instance 'mysql-database
135 :name (database-name-from-spec connection-spec
137 :database-type :mysql
138 :connection-spec connection-spec
139 :mysql-ptr mysql-ptr))
140 (when error-occurred (mysql-close mysql-ptr)))))))))
143 (defmethod database-disconnect ((database mysql-database))
144 (mysql-close (database-mysql-ptr database))
145 (setf (database-mysql-ptr database) nil)
149 (defmethod database-query (query-expression (database mysql-database)
150 result-types field-names)
151 (declare (optimize (speed 3) (safety 0) (debug 0) (space 0)))
152 (let ((mysql-ptr (database-mysql-ptr database)))
153 (uffi:with-cstring (query-native query-expression)
154 (if (zerop (mysql-real-query mysql-ptr query-native
155 (length query-expression)))
156 (let ((res-ptr (mysql-use-result mysql-ptr)))
159 (let ((num-fields (mysql-num-fields res-ptr)))
160 (declare (fixnum num-fields))
161 (setq result-types (canonicalize-types
162 result-types num-fields
165 (loop for row = (mysql-fetch-row res-ptr)
166 for lengths = (mysql-fetch-lengths res-ptr)
167 until (uffi:null-pointer-p row)
169 (do* ((rlist (make-list num-fields))
171 (pos rlist (cdr pos)))
172 ((= i num-fields) rlist)
176 (uffi:deref-array row '(:array
180 (uffi:deref-array lengths '(:array :unsigned-long)
183 (result-field-names num-fields res-ptr))))
184 (mysql-free-result res-ptr))
185 (error 'sql-database-data-error
187 :expression query-expression
188 :error-id (mysql-errno mysql-ptr)
189 :message (mysql-error-string mysql-ptr))))
190 (error 'sql-database-data-error
192 :expression query-expression
193 :error-id (mysql-errno mysql-ptr)
194 :message (mysql-error-string mysql-ptr))))))
196 (defmethod database-execute-command (sql-expression (database mysql-database))
197 (uffi:with-cstring (sql-native sql-expression)
198 (let ((mysql-ptr (database-mysql-ptr database)))
199 (declare (type mysql-mysql-ptr-def mysql-ptr))
200 (if (zerop (mysql-real-query mysql-ptr sql-native
201 (length sql-expression)))
203 (error 'sql-database-data-error
205 :expression sql-expression
206 :error-id (mysql-errno mysql-ptr)
207 :message (mysql-error-string mysql-ptr))))))
210 (defstruct mysql-result-set
211 (res-ptr (uffi:make-null-pointer 'mysql-mysql-res) :type mysql-mysql-res-ptr-def)
212 (types nil :type list)
213 (num-fields 0 :type fixnum)
214 (full-set nil :type boolean))
217 (defmethod database-query-result-set ((query-expression string)
218 (database mysql-database)
219 &key full-set result-types)
220 (uffi:with-cstring (query-native query-expression)
221 (let ((mysql-ptr (database-mysql-ptr database)))
222 (declare (type mysql-mysql-ptr-def mysql-ptr))
223 (if (zerop (mysql-real-query mysql-ptr query-native
224 (length query-expression)))
225 (let ((res-ptr (if full-set
226 (mysql-store-result mysql-ptr)
227 (mysql-use-result mysql-ptr))))
228 (declare (type mysql-mysql-res-ptr-def res-ptr))
229 (if (not (uffi:null-pointer-p res-ptr))
230 (let* ((num-fields (mysql-num-fields res-ptr))
231 (result-set (make-mysql-result-set
233 :num-fields num-fields
237 result-types num-fields
242 (mysql-num-rows res-ptr))
245 (error 'sql-database-data-error
247 :expression query-expression
248 :error-id (mysql-errno mysql-ptr)
249 :message (mysql-error-string mysql-ptr))))
250 (error 'sql-database-data-error
252 :expression query-expression
253 :error-id (mysql-errno mysql-ptr)
254 :message (mysql-error-string mysql-ptr))))))
256 (defmethod database-dump-result-set (result-set (database mysql-database))
257 (mysql-free-result (mysql-result-set-res-ptr result-set))
261 (defmethod database-store-next-row (result-set (database mysql-database) list)
262 (let* ((res-ptr (mysql-result-set-res-ptr result-set))
263 (row (mysql-fetch-row res-ptr))
264 (lengths (mysql-fetch-lengths res-ptr))
265 (types (mysql-result-set-types result-set)))
266 (declare (type mysql-mysql-res-ptr-def res-ptr)
267 (type mysql-row-def row))
268 (unless (uffi:null-pointer-p row)
269 (loop for i from 0 below (mysql-result-set-num-fields result-set)
274 (uffi:deref-array row '(:array (* :unsigned-char)) i)
277 (uffi:deref-array lengths '(:array :unsigned-long) i))))
281 ;; Table and attribute introspection
283 (defmethod database-list-tables ((database mysql-database) &key (owner nil))
284 (declare (ignore owner))
285 (remove-if #'(lambda (s)
286 (and (>= (length s) 11)
287 (string-equal (subseq s 0 11) "_CLSQL_SEQ_")))
288 (mapcar #'car (database-query "SHOW TABLES" database nil nil))))
290 ;; MySQL 4.1 does not support views
291 (defmethod database-list-views ((database mysql-database)
293 (declare (ignore owner))
296 (defmethod database-list-indexes ((database mysql-database)
299 (dolist (table (database-list-tables database :owner owner) result)
301 (append (database-list-table-indexes table database :owner owner)
304 (defmethod database-list-table-indexes (table (database mysql-database)
306 (declare (ignore owner))
308 (rows (database-query
309 (format nil "SHOW INDEX FROM ~A" (string-upcase table))
312 ((null rows) (nreverse results))
313 (let ((col (nth 2 (car rows))))
314 (unless (find col results :test #'string-equal)
315 (push col results)))))
317 (defmethod database-list-attributes ((table string) (database mysql-database)
319 (declare (ignore owner))
322 (format nil "SHOW COLUMNS FROM ~A" table)
325 (defmethod database-attribute-type (attribute (table string)
326 (database mysql-database)
328 (declare (ignore owner))
329 (let ((row (car (database-query
331 "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)
333 (let* ((raw-type (second row))
335 (start-length (position #\( raw-type))
336 (type (if start-length
337 (subseq raw-type 0 start-length)
339 (length (when start-length
340 (parse-integer (subseq raw-type (1+ start-length))
343 (values (ensure-keyword type) length nil (if (string-equal null "YES") 1 0))))))
345 ;;; Sequence functions
347 (defun %sequence-name-to-table (sequence-name)
348 (concatenate 'string "_CLSQL_SEQ_" (sql-escape sequence-name)))
350 (defun %table-name-to-sequence-name (table-name)
351 (and (>= (length table-name) 11)
352 (string-equal (subseq table-name 0 11) "_CLSQL_SEQ_")
353 (subseq table-name 11)))
355 (defmethod database-create-sequence (sequence-name
356 (database mysql-database))
357 (let ((table-name (%sequence-name-to-table sequence-name)))
358 (database-execute-command
359 (concatenate 'string "CREATE TABLE " table-name
360 " (id int NOT NULL PRIMARY KEY AUTO_INCREMENT)")
362 (database-execute-command
363 (concatenate 'string "INSERT INTO " table-name
367 (defmethod database-drop-sequence (sequence-name
368 (database mysql-database))
369 (database-execute-command
370 (concatenate 'string "DROP TABLE " (%sequence-name-to-table sequence-name))
373 (defmethod database-list-sequences ((database mysql-database)
375 (declare (ignore owner))
376 (mapcan #'(lambda (s)
377 (let ((sn (%table-name-to-sequence-name (car s))))
379 (database-query "SHOW TABLES" database nil nil)))
381 (defmethod database-set-sequence-position (sequence-name
383 (database mysql-database))
384 (database-execute-command
385 (format nil "UPDATE ~A SET id=~A" (%sequence-name-to-table sequence-name)
388 (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
390 (defmethod database-sequence-next (sequence-name (database mysql-database))
392 (database-execute-command
393 (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)
394 " SET id=LAST_INSERT_ID(id+1)")
396 (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database))))
398 (defmethod database-sequence-last (sequence-name (database mysql-database))
400 (caar (database-query
401 (concatenate 'string "SELECT id from "
402 (%sequence-name-to-table sequence-name))
403 database :auto nil))))
405 (defmethod database-create (connection-spec (type (eql :mysql)))
406 (destructuring-bind (host name user password) connection-spec
407 (multiple-value-bind (output status)
408 (clsql-sys:command-output "mysqladmin create -u~A -p~A -h~A ~A"
410 (if host host "localhost")
412 (if (or (not (eql 0 status))
413 (and (search "failed" output) (search "error" output)))
414 (error 'sql-database-error
416 (format nil "mysql database creation failed with connection-spec ~A."
420 (defmethod database-destroy (connection-spec (type (eql :mysql)))
421 (destructuring-bind (host name user password) connection-spec
422 (multiple-value-bind (output status)
423 (clsql-sys:command-output "mysqladmin drop -f -u~A -p~A -h~A ~A"
425 (if host host "localhost")
427 (if (or (not (eql 0 status))
428 (and (search "failed" output) (search "error" output)))
429 (error 'sql-database-error
431 (format nil "mysql database deletion failed with connection-spec ~A."
435 (defmethod database-probe (connection-spec (type (eql :mysql)))
436 (when (find (second connection-spec) (database-list connection-spec type)
437 :key #'car :test #'string-equal)
440 (defmethod database-list (connection-spec (type (eql :mysql)))
441 (destructuring-bind (host name user password) connection-spec
442 (declare (ignore name))
443 (let ((database (database-connect (list host "mysql" user password) type)))
446 (setf (slot-value database 'clsql-sys::state) :open)
447 (mapcar #'car (database-query "show databases" database :auto nil)))
449 (database-disconnect database)
450 (setf (slot-value database 'clsql-sys::state) :closed))))))
453 ;;; Prepared statements
455 (defclass mysql-stmt ()
456 ((database :initarg :database :reader database)
457 (stmt :initarg :stmt :accessor stmt)
458 (input-bind :initarg :input-bind :reader input-bind)
459 (output-bind :initarg :output-bind :reader output-bind)
460 (types :initarg :types :reader types)
461 (result-set :initarg :result-set :reader result-set)
462 (num-fields :initarg :num-fields :reader num-fields)
463 (field-names :initarg :field-names :accessor stmt-field-names)
464 (length-ptr :initarg :length-ptr :reader length-ptr)
465 (is-null-ptr :initarg :is-null-ptr :reader is-null-ptr)
466 (result-types :initarg :result-types :reader result-types)))
468 (defun clsql-type->mysql-type (type)
470 ((in type :null) mysql-field-types#null)
471 ((in type :int :integer) mysql-field-types#long)
472 ((in type :short) mysql-field-types#short)
473 ((in type :bigint) mysql-field-types#longlong)
474 ((in type :float :double :number) mysql-field-types#double)
475 ((and (consp type) (in (car type) :char :string :varchar)) mysql-field-types#var-string)
476 ((or (eq type :blob) (and (consp type) (in (car type) :blob))) mysql-field-types#var-string)
478 (error 'sql-user-error
480 (format nil "Unknown clsql type ~A." type)))))
483 (defmethod database-prepare (sql-stmt types (database mysql-database) result-types field-names)
484 (let* ((mysql-ptr (database-mysql-ptr database))
485 (stmt (mysql-stmt-init mysql-ptr)))
486 (when (uffi:null-pointer-p stmt)
487 (error 'sql-database-error
488 :error-id (mysql-errno mysql-ptr)
489 :message (mysql-error-string mysql-ptr)))
491 (uffi:with-cstring (native-query sql-stmt)
492 (unless (zerop (mysql-stmt-prepare stmt native-query (length sql-stmt)))
493 (mysql-stmt-close stmt)
494 (error 'sql-database-error
495 :error-id (mysql-errno mysql-ptr)
496 :message (mysql-error-string mysql-ptr))))
498 (unless (= (mysql-stmt-param-count stmt) (length types))
499 (mysql-stmt-close stmt)
500 (error 'sql-database-error
502 (format nil "Mysql param count (~D) does not match number of types (~D)"
503 (mysql-stmt-param-count stmt) (length types))))
505 (let ((rs (mysql-stmt-result-metadata stmt)))
506 (when (uffi:null-pointer-p rs)
507 (warn "mysql_stmt_result_metadata returned NULL")
509 (mysql-stmt-close stmt)
511 (error 'sql-database-error
512 :message "mysql_stmt_result_metadata returned NULL"))
514 (let ((input-bind (uffi:allocate-foreign-object 'mysql-bind (length types)))
515 (mysql-types (mapcar 'clsql-type->mysql-type types))
516 field-vec num-fields is-null-ptr output-bind length-ptr)
519 (dotimes (i (length types))
520 (let* ((binding (uffi:deref-array input-bind '(:array mysql-bind) i)))
521 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type)
523 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)))
526 (unless (uffi:null-pointer-p rs)
527 (setq field-vec (mysql-fetch-fields rs)
528 num-fields (mysql-num-fields rs)
529 is-null-ptr (uffi:allocate-foreign-object :byte num-fields)
530 output-bind (uffi:allocate-foreign-object 'mysql-bind num-fields)
531 length-ptr (uffi:allocate-foreign-object :unsigned-long num-fields))
532 (dotimes (i num-fields)
534 (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
535 (type (uffi:get-slot-value field 'mysql-field 'type))
536 (binding (uffi:deref-array output-bind '(:array mysql-bind) i)))
537 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type) type)
539 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)
540 #+need-to-allocate-foreign-object-for-this
541 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::is-null)
542 (+ i (uffi:pointer-address is-null-ptr)))
543 #+need-to-allocate-foreign-object-for-this
544 (setf (uffi:get-slot-value binding 'mysql-bind 'length)
545 (+ (* i 8) (uffi:pointer-address length-ptr)))
548 ((#.mysql-field-types#var-string #.mysql-field-types#string
549 #.mysql-field-types#tiny-blob #.mysql-field-types#blob
550 #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
551 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 1024)
552 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
553 (uffi:allocate-foreign-object :unsigned-char 1024)))
554 (#.mysql-field-types#tiny
555 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
556 (uffi:allocate-foreign-object :byte)))
557 (#.mysql-field-types#short
558 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
559 (uffi:allocate-foreign-object :short)))
560 (#.mysql-field-types#long
561 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
562 ;; segfaults if supply :int on amd64
563 (uffi:allocate-foreign-object :long)))
565 (#.mysql-field-types#longlong
566 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
567 (uffi:allocate-foreign-object :long)))
568 (#.mysql-field-types#float
569 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
570 (uffi:allocate-foreign-object :float)))
571 (#.mysql-field-types#double
572 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
573 (uffi:allocate-foreign-object :double)))
574 ((#.mysql-field-types#time #.mysql-field-types#date
575 #.mysql-field-types#datetime #.mysql-field-types#timestamp)
576 (uffi:allocate-foreign-object 'mysql-time))
578 (error "mysql type ~D not supported." type)))))
580 (unless (zerop (mysql-stmt-bind-result stmt output-bind))
581 (mysql-stmt-close stmt)
582 (error 'sql-database-error
583 :error-id (mysql-stmt-errno stmt)
584 :message (uffi:convert-from-cstring
585 (mysql-stmt-error stmt)))))
587 (make-instance 'mysql-stmt
590 :num-fields num-fields
591 :input-bind input-bind
592 :output-bind output-bind
594 :result-types result-types
595 :length-ptr length-ptr
596 :is-null-ptr is-null-ptr
598 :field-names field-names)))))
601 (defmethod database-bind-parameter ((stmt mysql-stmt) position value)
602 ;; FIXME: will need to allocate bind structure. This should probably be
603 ;; done in C since the API is not mature and may change
604 (let ((binding (uffi:deref-array (input-bind stmt) '(:array mysql-bind) (1- position)))
605 (type (nth (1- position) (types stmt))))
606 (setf (uffi:get-slot-value binding 'mysql-bind 'length) 0)
609 (when (is-null-ptr stmt)
610 (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 1)))
612 (when (is-null-ptr stmt)
613 (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 0))
615 (#.mysql-field-types#long
616 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer) value))
618 (warn "Unknown input bind type ~D." type))
622 (defmethod database-run-prepared ((stmt mysql-stmt))
624 (when (input-bind stmt)
625 (unless (zerop (mysql-stmt-bind-param (stmt stmt) (input-bind stmt)))
626 (error 'sql-database-error
627 :error-id (mysql-stmt-errno (stmt stmt))
628 :message (uffi:convert-from-cstring
629 (mysql-stmt-error (stmt stmt))))))
631 (unless (zerop (mysql-stmt-execute (stmt stmt)))
632 (error 'sql-database-error
633 :error-id (mysql-stmt-errno (stmt stmt))
634 :message (uffi:convert-from-cstring
635 (mysql-stmt-error (stmt stmt)))))
637 (unless (zerop (mysql-stmt-store-result (stmt stmt)))
638 (error 'sql-database-error
639 :error-id (mysql-stmt-errno (stmt stmt))
640 :message (uffi:convert-from-cstring
641 (mysql-stmt-error (stmt stmt)))))
642 (database-fetch-prepared-rows stmt))
645 (defun database-fetch-prepared-rows (stmt)
646 (do ((rc (mysql-stmt-fetch (stmt stmt)) (mysql-stmt-fetch (stmt stmt)))
647 (num-fields (num-fields stmt))
649 ((not (zerop rc)) (nreverse rows))
651 (loop for i from 0 below num-fields
654 (not (zerop (uffi:ensure-char-integer
655 (uffi:deref-array (is-null-ptr stmt) '(:array :byte) i))))))
657 (let* ((bind (uffi:deref-array (output-bind stmt) '(:array mysql-bind) i))
658 (type (uffi:get-slot-value bind 'mysql-bind 'mysql::buffer-type))
659 (buffer (uffi:get-slot-value bind 'mysql-bind 'mysql::buffer)))
661 ((#.mysql-field-types#var-string #.mysql-field-types#string
662 #.mysql-field-types#tiny-blob #.mysql-field-types#blob
663 #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
664 (uffi:convert-from-foreign-string buffer))
665 (#.mysql-field-types#tiny
666 (uffi:ensure-char-integer
667 (uffi:deref-pointer buffer :byte)))
668 (#.mysql-field-types#short
669 (uffi:deref-pointer buffer :short))
670 (#.mysql-field-types#long
671 (uffi:deref-pointer buffer :int))
673 (#.mysql-field-types#longlong
674 (uffi:deref-pointer buffer :long))
675 (#.mysql-field-types#float
676 (uffi:deref-pointer buffer :float))
677 (#.mysql-field-types#double
678 (uffi:deref-pointer buffer :double))
679 ((#.mysql-field-types#time #.mysql-field-types#date
680 #.mysql-field-types#datetime #.mysql-field-types#timestamp)
681 (let ((year (uffi:get-slot-value buffer 'mysql-time 'mysql::year))
682 (month (uffi:get-slot-value buffer 'mysql-time 'mysql::month))
683 (day (uffi:get-slot-value buffer 'mysql-time 'mysql::day))
684 (hour (uffi:get-slot-value buffer 'mysql-time 'mysql::hour))
685 (minute (uffi:get-slot-value buffer 'mysql-time 'mysql::minute))
686 (second (uffi:get-slot-value buffer 'mysql-time 'mysql::second)))
688 (make-time :year year :month month :day day :hour hour
689 :minute minute :second second))))
698 (defmethod database-free-prepared ((stmt mysql-stmt))
699 (with-slots (stmt) stmt
700 (mysql-stmt-close stmt))
704 ;;; Database capabilities
706 (defmethod db-type-use-column-on-drop-index? ((db-type (eql :mysql)))
709 (defmethod db-type-has-views? ((db-type (eql :mysql)))
710 #+mysql-client-v5.1 t
711 #-mysql-client-v5.1 nil)
713 (defmethod db-type-has-subqueries? ((db-type (eql :mysql)))
714 #+mysql-client-v4.1 t
715 #-mysql-client-v4.1 nil)
717 (defmethod db-type-has-boolean-where? ((db-type (eql :mysql)))
718 #+mysql-client-v4.1 t
719 #-mysql-client-v4.1 nil)
721 (defmethod db-type-has-union? ((db-type (eql :mysql)))
722 (not (eql (schar mysql::*mysql-client-info* 0) #\3)))
724 (defmethod db-type-transaction-capable? ((db-type (eql :mysql)) database)
725 (let ((tuple (car (database-query "SHOW VARIABLES LIKE 'HAVE_INNODB'" database :auto nil))))
726 (and tuple (string-equal "YES" (second tuple)))))
728 (defmethod db-type-has-prepared-stmt? ((db-type (eql :mysql)))
729 #+mysql-client-v4.1 t
730 #-mysql-client-v4.1 nil)
732 (when (clsql-sys:database-type-library-loaded :mysql)
733 (clsql-sys:initialize-database-type :database-type :mysql))