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)))
159 (make-instance 'mysql-database
160 :name (database-name-from-spec connection-spec
162 :database-type :mysql
163 :connection-spec connection-spec
164 :server-info (uffi:convert-from-cstring
165 (mysql:mysql-get-server-info mysql-ptr))
166 :mysql-ptr mysql-ptr))
167 (when error-occurred (mysql-close mysql-ptr)))))))))
170 (defmethod database-disconnect ((database mysql-database))
171 (mysql-close (database-mysql-ptr database))
172 (setf (database-mysql-ptr database) nil)
176 (defmethod database-query (query-expression (database mysql-database)
177 result-types field-names)
178 (declare (optimize (speed 3) (safety 0) (debug 0) (space 0)))
179 (let ((mysql-ptr (database-mysql-ptr database)))
180 (uffi:with-cstring (query-native query-expression)
181 (if (zerop (mysql-real-query mysql-ptr query-native
182 (expression-length query-expression)))
183 (let ((res-ptr (mysql-use-result mysql-ptr)))
186 (let ((num-fields (mysql-num-fields res-ptr)))
187 (declare (fixnum num-fields))
188 (setq result-types (canonicalize-types
189 result-types num-fields
192 (loop for row = (mysql-fetch-row res-ptr)
193 for lengths = (mysql-fetch-lengths res-ptr)
194 until (uffi:null-pointer-p row)
196 (do* ((rlist (make-list num-fields))
198 (pos rlist (cdr pos)))
199 ((= i num-fields) rlist)
203 (uffi:deref-array row '(:array
207 (uffi:deref-array lengths '(:array :unsigned-long)
210 (result-field-names num-fields res-ptr))))
211 (mysql-free-result res-ptr))
212 (error 'sql-database-data-error
214 :expression query-expression
215 :error-id (mysql-errno mysql-ptr)
216 :message (mysql-error-string mysql-ptr))))
217 (error 'sql-database-data-error
219 :expression query-expression
220 :error-id (mysql-errno mysql-ptr)
221 :message (mysql-error-string mysql-ptr))))))
223 (defmethod database-execute-command (sql-expression (database mysql-database))
224 (uffi:with-cstring (sql-native sql-expression)
225 (let ((mysql-ptr (database-mysql-ptr database)))
226 (declare (type mysql-mysql-ptr-def mysql-ptr))
227 (if (zerop (mysql-real-query mysql-ptr sql-native
228 (expression-length sql-expression)))
230 (error 'sql-database-data-error
232 :expression sql-expression
233 :error-id (mysql-errno mysql-ptr)
234 :message (mysql-error-string mysql-ptr))))))
237 (defstruct mysql-result-set
238 (res-ptr (uffi:make-null-pointer 'mysql-mysql-res) :type mysql-mysql-res-ptr-def)
239 (types nil :type list)
240 (num-fields 0 :type fixnum)
241 (full-set nil :type boolean))
244 (defmethod database-query-result-set ((query-expression string)
245 (database mysql-database)
246 &key full-set result-types)
247 (uffi:with-cstring (query-native query-expression)
248 (let ((mysql-ptr (database-mysql-ptr database)))
249 (declare (type mysql-mysql-ptr-def mysql-ptr))
250 (if (zerop (mysql-real-query mysql-ptr query-native
251 (expression-length query-expression)))
252 (let ((res-ptr (if full-set
253 (mysql-store-result mysql-ptr)
254 (mysql-use-result mysql-ptr))))
255 (declare (type mysql-mysql-res-ptr-def res-ptr))
256 (if (not (uffi:null-pointer-p res-ptr))
257 (let* ((num-fields (mysql-num-fields res-ptr))
258 (result-set (make-mysql-result-set
260 :num-fields num-fields
264 result-types num-fields
269 (mysql-num-rows res-ptr))
272 (error 'sql-database-data-error
274 :expression query-expression
275 :error-id (mysql-errno mysql-ptr)
276 :message (mysql-error-string mysql-ptr))))
277 (error 'sql-database-data-error
279 :expression query-expression
280 :error-id (mysql-errno mysql-ptr)
281 :message (mysql-error-string mysql-ptr))))))
283 (defmethod database-dump-result-set (result-set (database mysql-database))
284 (mysql-free-result (mysql-result-set-res-ptr result-set))
288 (defmethod database-store-next-row (result-set (database mysql-database) list)
289 (let* ((res-ptr (mysql-result-set-res-ptr result-set))
290 (row (mysql-fetch-row res-ptr))
291 (lengths (mysql-fetch-lengths res-ptr))
292 (types (mysql-result-set-types result-set)))
293 (declare (type mysql-mysql-res-ptr-def res-ptr)
294 (type mysql-row-def row))
295 (unless (uffi:null-pointer-p row)
296 (loop for i from 0 below (mysql-result-set-num-fields result-set)
301 (uffi:deref-array row '(:array (* :unsigned-char)) i)
304 (uffi:deref-array lengths '(:array :unsigned-long) i))))
308 ;; Table and attribute introspection
310 (defmethod database-list-tables ((database mysql-database) &key (owner nil))
311 (declare (ignore owner))
313 ((eql #\5 (char (database-server-info database) 0))
314 (loop for (name type) in (database-query "SHOW FULL TABLES" database nil nil)
315 when (and (string-equal type "base table")
316 (not (and (>= (length name) 11)
317 (string-equal (subseq name 0 11) "_CLSQL_SEQ_"))))
320 (remove-if #'(lambda (s)
321 (and (>= (length s) 11)
322 (string-equal (subseq s 0 11) "_CLSQL_SEQ_")))
323 (mapcar #'car (database-query "SHOW TABLES" database nil nil))))))
325 (defmethod database-list-views ((database mysql-database)
327 (declare (ignore owner))
329 ((eql #\5 (char (database-server-info database) 0))
330 (loop for (name type) in (database-query "SHOW FULL TABLES" database nil nil)
331 when (string-equal type "view")
336 (defmethod database-list-indexes ((database mysql-database)
339 (dolist (table (database-list-tables database :owner owner) result)
341 (append (database-list-table-indexes table database :owner owner)
344 (defmethod database-list-table-indexes (table (database mysql-database)
346 (declare (ignore owner))
348 (rows (database-query
349 (format nil "SHOW INDEX FROM ~A" (string-upcase table))
352 ((null rows) (nreverse results))
353 (let ((col (nth 2 (car rows))))
354 (unless (find col results :test #'string-equal)
355 (push col results)))))
357 (defmethod database-list-attributes ((table string) (database mysql-database)
359 (declare (ignore owner))
362 (format nil "SHOW COLUMNS FROM ~A" table)
365 (defmethod database-attribute-type (attribute (table string)
366 (database mysql-database)
368 (declare (ignore owner))
369 (let ((row (car (database-query
371 "SHOW COLUMNS FROM ~A LIKE '~A'" table attribute)
373 (let* ((raw-type (second row))
375 (start-length (position #\( raw-type))
376 (type (if start-length
377 (subseq raw-type 0 start-length)
379 (length (when start-length
380 (parse-integer (subseq raw-type (1+ start-length))
383 (values (ensure-keyword type) length nil (if (string-equal null "YES") 1 0))))))
385 ;;; Sequence functions
387 (defun %sequence-name-to-table (sequence-name)
388 (concatenate 'string "_CLSQL_SEQ_" (sql-escape sequence-name)))
390 (defun %table-name-to-sequence-name (table-name)
391 (and (>= (length table-name) 11)
392 (string-equal (subseq table-name 0 11) "_CLSQL_SEQ_")
393 (subseq table-name 11)))
395 (defmethod database-create-sequence (sequence-name
396 (database mysql-database))
397 (let ((table-name (%sequence-name-to-table sequence-name)))
398 (database-execute-command
399 (concatenate 'string "CREATE TABLE " table-name
400 " (id int NOT NULL PRIMARY KEY AUTO_INCREMENT)")
402 (database-execute-command
403 (concatenate 'string "INSERT INTO " table-name
407 (defmethod database-drop-sequence (sequence-name
408 (database mysql-database))
409 (database-execute-command
410 (concatenate 'string "DROP TABLE " (%sequence-name-to-table sequence-name))
413 (defmethod database-list-sequences ((database mysql-database)
415 (declare (ignore owner))
416 (mapcan #'(lambda (s)
417 (let ((sn (%table-name-to-sequence-name (car s))))
419 (database-query "SHOW TABLES" database nil nil)))
421 (defmethod database-set-sequence-position (sequence-name
423 (database mysql-database))
424 (database-execute-command
425 (format nil "UPDATE ~A SET id=~A" (%sequence-name-to-table sequence-name)
428 (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database)))
430 (defmethod database-sequence-next (sequence-name (database mysql-database))
432 (database-execute-command
433 (concatenate 'string "UPDATE " (%sequence-name-to-table sequence-name)
434 " SET id=LAST_INSERT_ID(id+1)")
436 (mysql:mysql-insert-id (clsql-mysql::database-mysql-ptr database))))
438 (defmethod database-sequence-last (sequence-name (database mysql-database))
440 (caar (database-query
441 (concatenate 'string "SELECT id from "
442 (%sequence-name-to-table sequence-name))
443 database :auto nil))))
445 (defmethod database-create (connection-spec (type (eql :mysql)))
446 (destructuring-bind (host name user password &optional port) connection-spec
447 (multiple-value-bind (output status)
448 (clsql-sys:command-output "mysqladmin create -u~A -p~A -h~A~@[ -P~A~] ~A"
450 (if host host "localhost")
453 (if (or (not (eql 0 status))
454 (and (search "failed" output) (search "error" output)))
455 (error 'sql-database-error
457 (format nil "mysql database creation failed with connection-spec ~A."
461 (defmethod database-destroy (connection-spec (type (eql :mysql)))
462 (destructuring-bind (host name user password &optional port) connection-spec
463 (multiple-value-bind (output status)
464 (clsql-sys:command-output "mysqladmin drop -f -u~A -p~A -h~A~@[ -P~A~] ~A"
466 (if host host "localhost")
468 (if (or (not (eql 0 status))
469 (and (search "failed" output) (search "error" output)))
470 (error 'sql-database-error
472 (format nil "mysql database deletion failed with connection-spec ~A."
476 (defmethod database-probe (connection-spec (type (eql :mysql)))
477 (when (find (second connection-spec) (database-list connection-spec type)
478 :test #'string-equal)
481 (defmethod database-list (connection-spec (type (eql :mysql)))
482 (destructuring-bind (host name user password &optional port) connection-spec
483 (declare (ignore name))
484 (let ((database (database-connect (list host "mysql" user password port) type)))
487 (setf (slot-value database 'clsql-sys::state) :open)
488 (mapcar #'car (database-query "show databases" database :auto nil)))
490 (database-disconnect database)
491 (setf (slot-value database 'clsql-sys::state) :closed))))))
494 ;;; Prepared statements
496 (defclass mysql-stmt ()
497 ((database :initarg :database :reader database)
498 (stmt :initarg :stmt :accessor stmt)
499 (input-bind :initarg :input-bind :reader input-bind)
500 (output-bind :initarg :output-bind :reader output-bind)
501 (types :initarg :types :reader types)
502 (result-set :initarg :result-set :reader result-set)
503 (num-fields :initarg :num-fields :reader num-fields)
504 (field-names :initarg :field-names :accessor stmt-field-names)
505 (length-ptr :initarg :length-ptr :reader length-ptr)
506 (is-null-ptr :initarg :is-null-ptr :reader is-null-ptr)
507 (result-types :initarg :result-types :reader result-types)))
509 (defun clsql-type->mysql-type (type)
511 ((in type :null) mysql-field-types#null)
512 ((in type :int :integer) mysql-field-types#long)
513 ((in type :short) mysql-field-types#short)
514 ((in type :bigint) mysql-field-types#longlong)
515 ((in type :float :double :number) mysql-field-types#double)
516 ((and (consp type) (in (car type) :char :string :varchar)) mysql-field-types#var-string)
517 ((or (eq type :blob) (and (consp type) (in (car type) :blob))) mysql-field-types#var-string)
519 (error 'sql-user-error
521 (format nil "Unknown clsql type ~A." type)))))
524 (defmethod database-prepare (sql-stmt types (database mysql-database) result-types field-names)
525 (let* ((mysql-ptr (database-mysql-ptr database))
526 (stmt (mysql-stmt-init mysql-ptr)))
527 (when (uffi:null-pointer-p stmt)
528 (error 'sql-database-error
529 :error-id (mysql-errno mysql-ptr)
530 :message (mysql-error-string mysql-ptr)))
532 (uffi:with-cstring (native-query sql-stmt)
533 (unless (zerop (mysql-stmt-prepare stmt native-query (expression-length sql-stmt)))
534 (mysql-stmt-close stmt)
535 (error 'sql-database-error
536 :error-id (mysql-errno mysql-ptr)
537 :message (mysql-error-string mysql-ptr))))
539 (unless (= (mysql-stmt-param-count stmt) (length types))
540 (mysql-stmt-close stmt)
541 (error 'sql-database-error
543 (format nil "Mysql param count (~D) does not match number of types (~D)"
544 (mysql-stmt-param-count stmt) (length types))))
546 (let ((rs (mysql-stmt-result-metadata stmt)))
547 (when (uffi:null-pointer-p rs)
548 (warn "mysql_stmt_result_metadata returned NULL")
550 (mysql-stmt-close stmt)
552 (error 'sql-database-error
553 :message "mysql_stmt_result_metadata returned NULL"))
555 (let ((input-bind (uffi:allocate-foreign-object 'mysql-bind (length types)))
556 (mysql-types (mapcar 'clsql-type->mysql-type types))
557 field-vec num-fields is-null-ptr output-bind length-ptr)
560 (dotimes (i (length types))
561 (let* ((binding (uffi:deref-array input-bind '(:array mysql-bind) i)))
562 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type)
564 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)))
567 (unless (uffi:null-pointer-p rs)
568 (setq field-vec (mysql-fetch-fields rs)
569 num-fields (mysql-num-fields rs)
570 is-null-ptr (uffi:allocate-foreign-object :byte num-fields)
571 output-bind (uffi:allocate-foreign-object 'mysql-bind num-fields)
572 length-ptr (uffi:allocate-foreign-object :unsigned-long num-fields))
573 (dotimes (i num-fields)
575 (let* ((field (uffi:deref-array field-vec '(:array mysql-field) i))
576 (type (uffi:get-slot-value field 'mysql-field 'type))
577 (binding (uffi:deref-array output-bind '(:array mysql-bind) i)))
578 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-type) type)
580 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 0)
581 #+need-to-allocate-foreign-object-for-this
582 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::is-null)
583 (+ i (uffi:pointer-address is-null-ptr)))
584 #+need-to-allocate-foreign-object-for-this
585 (setf (uffi:get-slot-value binding 'mysql-bind 'length)
586 (+ (* i 8) (uffi:pointer-address length-ptr)))
589 ((#.mysql-field-types#var-string #.mysql-field-types#string
590 #.mysql-field-types#tiny-blob #.mysql-field-types#blob
591 #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
592 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer-length) 1024)
593 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
594 (uffi:allocate-foreign-object :unsigned-char 1024)))
595 (#.mysql-field-types#tiny
596 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
597 (uffi:allocate-foreign-object :byte)))
598 (#.mysql-field-types#short
599 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
600 (uffi:allocate-foreign-object :short)))
601 (#.mysql-field-types#long
602 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
603 ;; segfaults if supply :int on amd64
604 (uffi:allocate-foreign-object :long)))
606 (#.mysql-field-types#longlong
607 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
608 (uffi:allocate-foreign-object :long)))
609 (#.mysql-field-types#float
610 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
611 (uffi:allocate-foreign-object :float)))
612 (#.mysql-field-types#double
613 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer)
614 (uffi:allocate-foreign-object :double)))
615 ((#.mysql-field-types#time #.mysql-field-types#date
616 #.mysql-field-types#datetime #.mysql-field-types#timestamp)
617 (uffi:allocate-foreign-object 'mysql-time))
619 (error "mysql type ~D not supported." type)))))
621 (unless (zerop (mysql-stmt-bind-result stmt output-bind))
622 (mysql-stmt-close stmt)
623 (error 'sql-database-error
624 :error-id (mysql-stmt-errno stmt)
625 :message (uffi:convert-from-cstring
626 (mysql-stmt-error stmt)))))
628 (make-instance 'mysql-stmt
631 :num-fields num-fields
632 :input-bind input-bind
633 :output-bind output-bind
635 :result-types result-types
636 :length-ptr length-ptr
637 :is-null-ptr is-null-ptr
639 :field-names field-names)))))
642 (defmethod database-bind-parameter ((stmt mysql-stmt) position value)
643 ;; FIXME: will need to allocate bind structure. This should probably be
644 ;; done in C since the API is not mature and may change
645 (let ((binding (uffi:deref-array (input-bind stmt) '(:array mysql-bind) (1- position)))
646 (type (nth (1- position) (types stmt))))
647 (setf (uffi:get-slot-value binding 'mysql-bind 'length) 0)
650 (when (is-null-ptr stmt)
651 (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 1)))
653 (when (is-null-ptr stmt)
654 (setf (uffi:deref-array (is-null-ptr stmt) '(:array :byte) (1- position)) 0))
656 (#.mysql-field-types#long
657 (setf (uffi:get-slot-value binding 'mysql-bind 'mysql::buffer) value))
659 (warn "Unknown input bind type ~D." type))
663 (defmethod database-run-prepared ((stmt mysql-stmt))
665 (when (input-bind stmt)
666 (unless (zerop (mysql-stmt-bind-param (stmt stmt) (input-bind stmt)))
667 (error 'sql-database-error
668 :error-id (mysql-stmt-errno (stmt stmt))
669 :message (uffi:convert-from-cstring
670 (mysql-stmt-error (stmt stmt))))))
672 (unless (zerop (mysql-stmt-execute (stmt stmt)))
673 (error 'sql-database-error
674 :error-id (mysql-stmt-errno (stmt stmt))
675 :message (uffi:convert-from-cstring
676 (mysql-stmt-error (stmt stmt)))))
678 (unless (zerop (mysql-stmt-store-result (stmt stmt)))
679 (error 'sql-database-error
680 :error-id (mysql-stmt-errno (stmt stmt))
681 :message (uffi:convert-from-cstring
682 (mysql-stmt-error (stmt stmt)))))
683 (database-fetch-prepared-rows stmt))
686 (defun database-fetch-prepared-rows (stmt)
687 (do ((rc (mysql-stmt-fetch (stmt stmt)) (mysql-stmt-fetch (stmt stmt)))
688 (num-fields (num-fields stmt))
690 ((not (zerop rc)) (nreverse rows))
692 (loop for i from 0 below num-fields
695 (not (zerop (uffi:ensure-char-integer
696 (uffi:deref-array (is-null-ptr stmt) '(:array :byte) i))))))
698 (let* ((bind (uffi:deref-array (output-bind stmt) '(:array mysql-bind) i))
699 (type (uffi:get-slot-value bind 'mysql-bind 'mysql::buffer-type))
700 (buffer (uffi:get-slot-value bind 'mysql-bind 'mysql::buffer)))
702 ((#.mysql-field-types#var-string #.mysql-field-types#string
703 #.mysql-field-types#tiny-blob #.mysql-field-types#blob
704 #.mysql-field-types#medium-blob #.mysql-field-types#long-blob)
705 (uffi:convert-from-foreign-string buffer))
706 (#.mysql-field-types#tiny
707 (uffi:ensure-char-integer
708 (uffi:deref-pointer buffer :byte)))
709 (#.mysql-field-types#short
710 (uffi:deref-pointer buffer :short))
711 (#.mysql-field-types#long
712 (uffi:deref-pointer buffer :int))
714 (#.mysql-field-types#longlong
715 (uffi:deref-pointer buffer :long))
716 (#.mysql-field-types#float
717 (uffi:deref-pointer buffer :float))
718 (#.mysql-field-types#double
719 (uffi:deref-pointer buffer :double))
720 ((#.mysql-field-types#time #.mysql-field-types#date
721 #.mysql-field-types#datetime #.mysql-field-types#timestamp)
722 (let ((year (uffi:get-slot-value buffer 'mysql-time 'mysql::year))
723 (month (uffi:get-slot-value buffer 'mysql-time 'mysql::month))
724 (day (uffi:get-slot-value buffer 'mysql-time 'mysql::day))
725 (hour (uffi:get-slot-value buffer 'mysql-time 'mysql::hour))
726 (minute (uffi:get-slot-value buffer 'mysql-time 'mysql::minute))
727 (second (uffi:get-slot-value buffer 'mysql-time 'mysql::second)))
729 (make-time :year year :month month :day day :hour hour
730 :minute minute :second second))))
739 (defmethod database-free-prepared ((stmt mysql-stmt))
740 (with-slots (stmt) stmt
741 (mysql-stmt-close stmt))
745 ;;; Database capabilities
747 (defmethod db-type-use-column-on-drop-index? ((db-type (eql :mysql)))
750 (defmethod db-type-has-views? ((db-type (eql :mysql)))
752 #-mysql-client-v5 nil)
754 (defmethod db-type-has-subqueries? ((db-type (eql :mysql)))
755 #+(or mysql-client-v4.1 mysql-client-v5) t
756 #-(or mysql-client-v4.1 mysql-client-v5) nil)
758 (defmethod db-type-has-boolean-where? ((db-type (eql :mysql)))
759 #+(or mysql-client-v4.1 mysql-client-v5) t
760 #-(or mysql-client-v4.1 mysql-client-v5) nil)
762 (defmethod db-type-has-union? ((db-type (eql :mysql)))
763 (not (eql (schar mysql::*mysql-client-info* 0) #\3)))
765 (defmethod db-type-transaction-capable? ((db-type (eql :mysql)) database)
766 (let ((tuple (car (database-query "SHOW VARIABLES LIKE 'HAVE_INNODB'" database :auto nil))))
767 (and tuple (string-equal "YES" (second tuple)))))
769 (defmethod db-type-has-prepared-stmt? ((db-type (eql :mysql)))
770 #+(or mysql-client-v4.1 mysql-client-v5) t
771 #-(or mysql-client-v4.1 mysql-client-v5) nil)
773 (when (clsql-sys:database-type-library-loaded :mysql)
774 (clsql-sys:initialize-database-type :database-type :mysql))