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)))
100 (defmethod database-type ((database mysql-database))
103 (defmethod database-name-from-spec (connection-spec (database-type (eql :mysql)))
104 (check-connection-spec connection-spec database-type
105 (host db user password &optional port))
106 (destructuring-bind (host db user password &optional port) connection-spec
107 (declare (ignore password))
111 (pathname (namestring host))
117 (integer (write-to-string port))
122 (defmethod database-connect (connection-spec (database-type (eql :mysql)))
123 (check-connection-spec connection-spec database-type
124 (host db user password &optional port))
125 (destructuring-bind (host db user password &optional port) connection-spec
126 (let ((mysql-ptr (mysql-init (uffi:make-null-pointer 'mysql-mysql)))
128 (if (uffi:null-pointer-p mysql-ptr)
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 (uffi:with-cstrings ((host-native host)
136 (password-native password)
138 (socket-native socket))
139 (let ((error-occurred nil))
141 (if (uffi:null-pointer-p
143 mysql-ptr host-native user-native password-native
148 (string (parse-integer port)))
151 (setq error-occurred t)
152 (error 'sql-connection-error
153 :database-type database-type
154 :connection-spec connection-spec
155 :error-id (mysql-errno mysql-ptr)
156 :message (mysql-error-string mysql-ptr)))
157 (make-instance 'mysql-database
158 :name (database-name-from-spec connection-spec
160 :database-type :mysql
161 :connection-spec connection-spec
162 :mysql-ptr mysql-ptr))
163 (when error-occurred (mysql-close mysql-ptr)))))))))
166 (defmethod database-disconnect ((database mysql-database))
167 (mysql-close (database-mysql-ptr database))
168 (setf (database-mysql-ptr database) nil)
172 (defmethod database-query (query-expression (database mysql-database)
173 result-types field-names)
174 (declare (optimize (speed 3) (safety 0) (debug 0) (space 0)))
175 (let ((mysql-ptr (database-mysql-ptr database)))
176 (uffi:with-cstring (query-native query-expression)
177 (if (zerop (mysql-real-query mysql-ptr query-native
178 (expression-length query-expression)))
179 (let ((res-ptr (mysql-use-result mysql-ptr)))
182 (let ((num-fields (mysql-num-fields res-ptr)))
183 (declare (fixnum num-fields))
184 (setq result-types (canonicalize-types
185 result-types num-fields
188 (loop for row = (mysql-fetch-row res-ptr)
189 for lengths = (mysql-fetch-lengths res-ptr)
190 until (uffi:null-pointer-p row)
192 (do* ((rlist (make-list num-fields))
194 (pos rlist (cdr pos)))
195 ((= i num-fields) rlist)
199 (uffi:deref-array row '(:array
203 (uffi:deref-array lengths '(:array :unsigned-long)
206 (result-field-names num-fields res-ptr))))
207 (mysql-free-result res-ptr))
208 (error 'sql-database-data-error
210 :expression query-expression
211 :error-id (mysql-errno mysql-ptr)
212 :message (mysql-error-string mysql-ptr))))
213 (error 'sql-database-data-error
215 :expression query-expression
216 :error-id (mysql-errno mysql-ptr)
217 :message (mysql-error-string mysql-ptr))))))
219 (defmethod database-execute-command (sql-expression (database mysql-database))
220 (uffi:with-cstring (sql-native sql-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 sql-native
224 (expression-length sql-expression)))
226 (error 'sql-database-data-error
228 :expression sql-expression
229 :error-id (mysql-errno mysql-ptr)
230 :message (mysql-error-string mysql-ptr))))))
233 (defstruct mysql-result-set
234 (res-ptr (uffi:make-null-pointer 'mysql-mysql-res) :type mysql-mysql-res-ptr-def)
235 (types nil :type list)
236 (num-fields 0 :type fixnum)
237 (full-set nil :type boolean))
240 (defmethod database-query-result-set ((query-expression string)
241 (database mysql-database)
242 &key full-set result-types)
243 (uffi:with-cstring (query-native query-expression)
244 (let ((mysql-ptr (database-mysql-ptr database)))
245 (declare (type mysql-mysql-ptr-def mysql-ptr))
246 (if (zerop (mysql-real-query mysql-ptr query-native
247 (expression-length query-expression)))
248 (let ((res-ptr (if full-set
249 (mysql-store-result mysql-ptr)
250 (mysql-use-result mysql-ptr))))
251 (declare (type mysql-mysql-res-ptr-def res-ptr))
252 (if (not (uffi:null-pointer-p res-ptr))
253 (let* ((num-fields (mysql-num-fields res-ptr))
254 (result-set (make-mysql-result-set
256 :num-fields num-fields
260 result-types num-fields
265 (mysql-num-rows res-ptr))
268 (error 'sql-database-data-error
270 :expression query-expression
271 :error-id (mysql-errno mysql-ptr)
272 :message (mysql-error-string mysql-ptr))))
273 (error 'sql-database-data-error
275 :expression query-expression
276 :error-id (mysql-errno mysql-ptr)
277 :message (mysql-error-string mysql-ptr))))))
279 (defmethod database-dump-result-set (result-set (database mysql-database))
280 (mysql-free-result (mysql-result-set-res-ptr result-set))
284 (defmethod database-store-next-row (result-set (database mysql-database) list)
285 (let* ((res-ptr (mysql-result-set-res-ptr result-set))
286 (row (mysql-fetch-row res-ptr))
287 (lengths (mysql-fetch-lengths res-ptr))
288 (types (mysql-result-set-types result-set)))
289 (declare (type mysql-mysql-res-ptr-def res-ptr)
290 (type mysql-row-def row))
291 (unless (uffi:null-pointer-p row)
292 (loop for i from 0 below (mysql-result-set-num-fields result-set)
297 (uffi:deref-array row '(:array (* :unsigned-char)) i)
300 (uffi:deref-array lengths '(:array :unsigned-long) i))))
304 ;; Table and attribute introspection
306 (defmethod database-list-tables ((database mysql-database) &key (owner nil))
307 (declare (ignore owner))
308 (remove-if #'(lambda (s)
309 (and (>= (length s) 11)
310 (string-equal (subseq s 0 11) "_CLSQL_SEQ_")))
311 (mapcar #'car (database-query "SHOW TABLES" database nil nil))))
313 ;; MySQL 4.1 does not support views
314 (defmethod database-list-views ((database mysql-database)
316 (declare (ignore owner))
319 (defmethod database-list-indexes ((database mysql-database)
322 (dolist (table (database-list-tables database :owner owner) result)
324 (append (database-list-table-indexes table database :owner owner)
327 (defmethod database-list-table-indexes (table (database mysql-database)
329 (declare (ignore owner))
331 (rows (database-query
332 (format nil "SHOW INDEX FROM ~A" (string-upcase table))
335 ((null rows) (nreverse results))
336 (let ((col (nth 2 (car rows))))
337 (unless (find col results :test #'string-equal)
338 (push col results)))))
340 (defmethod database-list-attributes ((table string) (database mysql-database)
342 (declare (ignore owner))
345 (format nil "SHOW COLUMNS FROM ~A" table)
348 (defmethod database-attribute-type (attribute (table string)
349 (database mysql-database)
351 (declare (ignore owner))
352 (let ((row (car (database-query
354 "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)
356 (let* ((raw-type (second row))
358 (start-length (position #\( raw-type))
359 (type (if start-length
360 (subseq raw-type 0 start-length)
362 (length (when start-length
363 (parse-integer (subseq raw-type (1+ start-length))
366 (values (ensure-keyword type) length nil (if (string-equal null "YES") 1 0))))))
368 ;;; Sequence functions
370 (defun %sequence-name-to-table (sequence-name)
371 (concatenate 'string "_CLSQL_SEQ_" (sql-escape sequence-name)))
373 (defun %table-name-to-sequence-name (table-name)
374 (and (>= (length table-name) 11)
375 (string-equal (subseq table-name 0 11) "_CLSQL_SEQ_")
376 (subseq table-name 11)))
378 (defmethod database-create-sequence (sequence-name
379 (database mysql-database))
380 (let ((table-name (%sequence-name-to-table sequence-name)))
381 (database-execute-command
382 (concatenate 'string "CREATE TABLE " table-name
383 " (id int NOT NULL PRIMARY KEY AUTO_INCREMENT)")
385 (database-execute-command
386 (concatenate 'string "INSERT INTO " table-name
390 (defmethod database-drop-sequence (sequence-name
391 (database mysql-database))
392 (database-execute-command
393 (concatenate 'string "DROP TABLE " (%sequence-name-to-table sequence-name))
396 (defmethod database-list-sequences ((database mysql-database)
398 (declare (ignore owner))
399 (mapcan #'(lambda (s)
400 (let ((sn (%table-name-to-sequence-name (car s))))
402 (database-query "SHOW TABLES" database nil nil)))
404 (defmethod database-set-sequence-position (sequence-name
406 (database mysql-database))
407 (database-execute-command
408 (format nil "UPDATE ~A SET id=~A" (%sequence-name-to-table sequence-name)
411 (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
413 (defmethod database-sequence-next (sequence-name (database mysql-database))
415 (database-execute-command
416 (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)
417 " SET id=LAST_INSERT_ID(id+1)")
419 (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database))))
421 (defmethod database-sequence-last (sequence-name (database mysql-database))
423 (caar (database-query
424 (concatenate 'string "SELECT id from "
425 (%sequence-name-to-table sequence-name))
426 database :auto nil))))
428 (defmethod database-create (connection-spec (type (eql :mysql)))
429 (destructuring-bind (host name user password &optional port) connection-spec
430 (multiple-value-bind (output status)
431 (clsql-sys:command-output "mysqladmin create -u~A -p~A -h~A~@[ -P~A~] ~A"
433 (if host host "localhost")
436 (if (or (not (eql 0 status))
437 (and (search "failed" output) (search "error" output)))
438 (error 'sql-database-error
440 (format nil "mysql database creation failed with connection-spec ~A."
444 (defmethod database-destroy (connection-spec (type (eql :mysql)))
445 (destructuring-bind (host name user password &optional port) connection-spec
446 (multiple-value-bind (output status)
447 (clsql-sys:command-output "mysqladmin drop -f -u~A -p~A -h~A~@[ -P~A~] ~A"
449 (if host host "localhost")
451 (if (or (not (eql 0 status))
452 (and (search "failed" output) (search "error" output)))
453 (error 'sql-database-error
455 (format nil "mysql database deletion failed with connection-spec ~A."
459 (defmethod database-probe (connection-spec (type (eql :mysql)))
460 (when (find (second connection-spec) (database-list connection-spec type)
461 :key #'car :test #'string-equal)
464 (defmethod database-list (connection-spec (type (eql :mysql)))
465 (destructuring-bind (host name user password &optional port) connection-spec
466 (declare (ignore name))
467 (let ((database (database-connect (list host "mysql" user password port) type)))
470 (setf (slot-value database 'clsql-sys::state) :open)
471 (mapcar #'car (database-query "show databases" database :auto nil)))
473 (database-disconnect database)
474 (setf (slot-value database 'clsql-sys::state) :closed))))))
477 ;;; Prepared statements
479 (defclass mysql-stmt ()
480 ((database :initarg :database :reader database)
481 (stmt :initarg :stmt :accessor stmt)
482 (input-bind :initarg :input-bind :reader input-bind)
483 (output-bind :initarg :output-bind :reader output-bind)
484 (types :initarg :types :reader types)
485 (result-set :initarg :result-set :reader result-set)
486 (num-fields :initarg :num-fields :reader num-fields)
487 (field-names :initarg :field-names :accessor stmt-field-names)
488 (length-ptr :initarg :length-ptr :reader length-ptr)
489 (is-null-ptr :initarg :is-null-ptr :reader is-null-ptr)
490 (result-types :initarg :result-types :reader result-types)))
492 (defun clsql-type->mysql-type (type)
494 ((in type :null) mysql-field-types#null)
495 ((in type :int :integer) mysql-field-types#long)
496 ((in type :short) mysql-field-types#short)
497 ((in type :bigint) mysql-field-types#longlong)
498 ((in type :float :double :number) mysql-field-types#double)
499 ((and (consp type) (in (car type) :char :string :varchar)) mysql-field-types#var-string)
500 ((or (eq type :blob) (and (consp type) (in (car type) :blob))) mysql-field-types#var-string)
502 (error 'sql-user-error
504 (format nil "Unknown clsql type ~A." type)))))
507 (defmethod database-prepare (sql-stmt types (database mysql-database) result-types field-names)
508 (let* ((mysql-ptr (database-mysql-ptr database))
509 (stmt (mysql-stmt-init mysql-ptr)))
510 (when (uffi:null-pointer-p stmt)
511 (error 'sql-database-error
512 :error-id (mysql-errno mysql-ptr)
513 :message (mysql-error-string mysql-ptr)))
515 (uffi:with-cstring (native-query sql-stmt)
516 (unless (zerop (mysql-stmt-prepare stmt native-query (expression-length sql-stmt)))
517 (mysql-stmt-close stmt)
518 (error 'sql-database-error
519 :error-id (mysql-errno mysql-ptr)
520 :message (mysql-error-string mysql-ptr))))
522 (unless (= (mysql-stmt-param-count stmt) (length types))
523 (mysql-stmt-close stmt)
524 (error 'sql-database-error
526 (format nil "Mysql param count (~D) does not match number of types (~D)"
527 (mysql-stmt-param-count stmt) (length types))))
529 (let ((rs (mysql-stmt-result-metadata stmt)))
530 (when (uffi:null-pointer-p rs)
531 (warn "mysql_stmt_result_metadata returned NULL")
533 (mysql-stmt-close stmt)
535 (error 'sql-database-error
536 :message "mysql_stmt_result_metadata returned NULL"))
538 (let ((input-bind (uffi:allocate-foreign-object 'mysql-bind (length types)))
539 (mysql-types (mapcar 'clsql-type->mysql-type types))
540 field-vec num-fields is-null-ptr output-bind length-ptr)
543 (dotimes (i (length types))
544 (let* ((binding (uffi:deref-array input-bind '(:array mysql-bind) i)))
545 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type)
547 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)))
550 (unless (uffi:null-pointer-p rs)
551 (setq field-vec (mysql-fetch-fields rs)
552 num-fields (mysql-num-fields rs)
553 is-null-ptr (uffi:allocate-foreign-object :byte num-fields)
554 output-bind (uffi:allocate-foreign-object 'mysql-bind num-fields)
555 length-ptr (uffi:allocate-foreign-object :unsigned-long num-fields))
556 (dotimes (i num-fields)
558 (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
559 (type (uffi:get-slot-value field 'mysql-field 'type))
560 (binding (uffi:deref-array output-bind '(:array mysql-bind) i)))
561 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type) type)
563 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)
564 #+need-to-allocate-foreign-object-for-this
565 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::is-null)
566 (+ i (uffi:pointer-address is-null-ptr)))
567 #+need-to-allocate-foreign-object-for-this
568 (setf (uffi:get-slot-value binding 'mysql-bind 'length)
569 (+ (* i 8) (uffi:pointer-address length-ptr)))
572 ((#.mysql-field-types#var-string #.mysql-field-types#string
573 #.mysql-field-types#tiny-blob #.mysql-field-types#blob
574 #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
575 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 1024)
576 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
577 (uffi:allocate-foreign-object :unsigned-char 1024)))
578 (#.mysql-field-types#tiny
579 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
580 (uffi:allocate-foreign-object :byte)))
581 (#.mysql-field-types#short
582 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
583 (uffi:allocate-foreign-object :short)))
584 (#.mysql-field-types#long
585 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
586 ;; segfaults if supply :int on amd64
587 (uffi:allocate-foreign-object :long)))
589 (#.mysql-field-types#longlong
590 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
591 (uffi:allocate-foreign-object :long)))
592 (#.mysql-field-types#float
593 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
594 (uffi:allocate-foreign-object :float)))
595 (#.mysql-field-types#double
596 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
597 (uffi:allocate-foreign-object :double)))
598 ((#.mysql-field-types#time #.mysql-field-types#date
599 #.mysql-field-types#datetime #.mysql-field-types#timestamp)
600 (uffi:allocate-foreign-object 'mysql-time))
602 (error "mysql type ~D not supported." type)))))
604 (unless (zerop (mysql-stmt-bind-result stmt output-bind))
605 (mysql-stmt-close stmt)
606 (error 'sql-database-error
607 :error-id (mysql-stmt-errno stmt)
608 :message (uffi:convert-from-cstring
609 (mysql-stmt-error stmt)))))
611 (make-instance 'mysql-stmt
614 :num-fields num-fields
615 :input-bind input-bind
616 :output-bind output-bind
618 :result-types result-types
619 :length-ptr length-ptr
620 :is-null-ptr is-null-ptr
622 :field-names field-names)))))
625 (defmethod database-bind-parameter ((stmt mysql-stmt) position value)
626 ;; FIXME: will need to allocate bind structure. This should probably be
627 ;; done in C since the API is not mature and may change
628 (let ((binding (uffi:deref-array (input-bind stmt) '(:array mysql-bind) (1- position)))
629 (type (nth (1- position) (types stmt))))
630 (setf (uffi:get-slot-value binding 'mysql-bind 'length) 0)
633 (when (is-null-ptr stmt)
634 (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 1)))
636 (when (is-null-ptr stmt)
637 (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 0))
639 (#.mysql-field-types#long
640 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer) value))
642 (warn "Unknown input bind type ~D." type))
646 (defmethod database-run-prepared ((stmt mysql-stmt))
648 (when (input-bind stmt)
649 (unless (zerop (mysql-stmt-bind-param (stmt stmt) (input-bind 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-execute (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)))))
661 (unless (zerop (mysql-stmt-store-result (stmt 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)))))
666 (database-fetch-prepared-rows stmt))
669 (defun database-fetch-prepared-rows (stmt)
670 (do ((rc (mysql-stmt-fetch (stmt stmt)) (mysql-stmt-fetch (stmt stmt)))
671 (num-fields (num-fields stmt))
673 ((not (zerop rc)) (nreverse rows))
675 (loop for i from 0 below num-fields
678 (not (zerop (uffi:ensure-char-integer
679 (uffi:deref-array (is-null-ptr stmt) '(:array :byte) i))))))
681 (let* ((bind (uffi:deref-array (output-bind stmt) '(:array mysql-bind) i))
682 (type (uffi:get-slot-value bind 'mysql-bind 'mysql::buffer-type))
683 (buffer (uffi:get-slot-value bind 'mysql-bind 'mysql::buffer)))
685 ((#.mysql-field-types#var-string #.mysql-field-types#string
686 #.mysql-field-types#tiny-blob #.mysql-field-types#blob
687 #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
688 (uffi:convert-from-foreign-string buffer))
689 (#.mysql-field-types#tiny
690 (uffi:ensure-char-integer
691 (uffi:deref-pointer buffer :byte)))
692 (#.mysql-field-types#short
693 (uffi:deref-pointer buffer :short))
694 (#.mysql-field-types#long
695 (uffi:deref-pointer buffer :int))
697 (#.mysql-field-types#longlong
698 (uffi:deref-pointer buffer :long))
699 (#.mysql-field-types#float
700 (uffi:deref-pointer buffer :float))
701 (#.mysql-field-types#double
702 (uffi:deref-pointer buffer :double))
703 ((#.mysql-field-types#time #.mysql-field-types#date
704 #.mysql-field-types#datetime #.mysql-field-types#timestamp)
705 (let ((year (uffi:get-slot-value buffer 'mysql-time 'mysql::year))
706 (month (uffi:get-slot-value buffer 'mysql-time 'mysql::month))
707 (day (uffi:get-slot-value buffer 'mysql-time 'mysql::day))
708 (hour (uffi:get-slot-value buffer 'mysql-time 'mysql::hour))
709 (minute (uffi:get-slot-value buffer 'mysql-time 'mysql::minute))
710 (second (uffi:get-slot-value buffer 'mysql-time 'mysql::second)))
712 (make-time :year year :month month :day day :hour hour
713 :minute minute :second second))))
722 (defmethod database-free-prepared ((stmt mysql-stmt))
723 (with-slots (stmt) stmt
724 (mysql-stmt-close stmt))
728 ;;; Database capabilities
730 (defmethod db-type-use-column-on-drop-index? ((db-type (eql :mysql)))
733 (defmethod db-type-has-views? ((db-type (eql :mysql)))
734 #+mysql-client-v5.1 t
735 #-mysql-client-v5.1 nil)
737 (defmethod db-type-has-subqueries? ((db-type (eql :mysql)))
738 #+mysql-client-v4.1 t
739 #-mysql-client-v4.1 nil)
741 (defmethod db-type-has-boolean-where? ((db-type (eql :mysql)))
742 #+mysql-client-v4.1 t
743 #-mysql-client-v4.1 nil)
745 (defmethod db-type-has-union? ((db-type (eql :mysql)))
746 (not (eql (schar mysql::*mysql-client-info* 0) #\3)))
748 (defmethod db-type-transaction-capable? ((db-type (eql :mysql)) database)
749 (let ((tuple (car (database-query "SHOW VARIABLES LIKE 'HAVE_INNODB'" database :auto nil))))
750 (and tuple (string-equal "YES" (second tuple)))))
752 (defmethod db-type-has-prepared-stmt? ((db-type (eql :mysql)))
753 #+mysql-client-v4.1 t
754 #-mysql-client-v4.1 nil)
756 (when (clsql-sys:database-type-library-loaded :mysql)
757 (clsql-sys:initialize-database-type :database-type :mysql))