1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
2 ;;;; *************************************************************************
6 ;;;; Definition of SQL operations used with the symbolic SQL syntax.
8 ;;;; This file is part of CLSQL.
10 ;;;; CLSQL users are granted the rights to distribute and use this software
11 ;;;; as governed by the terms of the Lisp Lesser GNU Public License
12 ;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
13 ;;;; *************************************************************************
15 (in-package #:clsql-sys)
17 ;; Keep a hashtable for mapping symbols to sql generator functions,
18 ;; for use by the bracketed reader syntax.
20 (defvar *sql-op-table* (make-hash-table :test #'equal))
23 ;; Define an SQL operation type.
25 (defmacro defsql (function definition-keys &body body)
27 (defun ,function ,@body)
28 (let ((symbol (cadr (member :symbol ',definition-keys))))
29 (setf (gethash (if symbol (symbol-name-default-case symbol) ',function)
36 (defsql sql-query (:symbol "select") (&rest args)
37 (apply #'make-query args))
39 (defsql sql-any (:symbol "any") (&rest rest)
40 (make-instance 'sql-function-exp
41 :name 'any :args rest))
43 (defsql sql-some (:symbol "some") (&rest rest)
44 (make-instance 'sql-function-exp
45 :name 'some :args rest))
47 (defsql sql-all (:symbol "all") (&rest rest)
48 (make-instance 'sql-function-exp
49 :name 'all :args rest))
51 (defsql sql-not (:symbol "not") (&rest rest)
52 (make-instance 'sql-value-exp
53 :modifier 'not :components rest))
55 (defsql sql-union (:symbol "union") (&rest rest)
56 (make-instance 'sql-set-exp
57 :operator 'union :sub-expressions rest))
59 (defsql sql-intersect (:symbol "intersect") (&rest rest)
60 (make-instance 'sql-set-exp
61 :operator 'intersect :sub-expressions rest))
63 (defsql sql-except (:symbol "except") (&rest rest)
64 (make-instance 'sql-set-exp
65 :operator 'except :sub-expressions rest))
67 (defsql sql-minus (:symbol "minus") (&rest rest)
68 (make-instance 'sql-set-exp
69 :operator 'minus :sub-expressions rest))
71 (defsql sql-limit (:symbol "limit") (&rest rest)
72 (make-instance 'sql-query-modifier-exp
73 :modifier 'limit :components rest))
75 (defsql sql-group-by (:symbol "group-by") (&rest rest)
76 (make-instance 'sql-query-modifier-exp
77 :modifier '|GROUP BY| :components rest))
79 (defsql sql-order-by (:symbol "order-by") (&rest rest)
80 (make-instance 'sql-query-modifier-exp
81 :modifier '|ORDER BY| :components rest))
83 (defsql sql-having (:symbol "having") (&rest rest)
84 (make-instance 'sql-query-modifier-exp
85 :modifier 'having :components rest))
87 (defsql sql-null (:symbol "null") (&rest rest)
89 (make-instance 'sql-relational-exp :operator 'is
90 :sub-expressions (list (car rest) nil))
91 (make-instance 'sql-value-exp :components 'null)))
93 (defsql sql-not-null (:symbol "not-null") ()
94 (make-instance 'sql-value-exp
95 :components '|NOT NULL|))
97 (defsql sql-exists (:symbol "exists") (&rest rest)
98 (make-instance 'sql-function-exp
99 :name 'exists :args rest))
101 (defsql sql-* (:symbol "*") (&rest rest)
102 (if (zerop (length rest))
103 (make-instance 'sql-ident :name '*)
104 (make-instance 'sql-relational-exp :operator '* :sub-expressions rest)))
106 (defsql sql-+ (:symbol "+") (&rest rest)
108 (make-instance 'sql-relational-exp
109 :operator '+ :sub-expressions rest)
110 (make-instance 'sql-value-exp :modifier '+ :components rest)))
112 (defsql sql-/ (:symbol "/") (&rest rest)
113 (make-instance 'sql-relational-exp
114 :operator '/ :sub-expressions rest))
116 (defsql sql-- (:symbol "-") (&rest rest)
118 (make-instance 'sql-relational-exp
119 :operator '- :sub-expressions rest)
120 (make-instance 'sql-value-exp :modifier '- :components rest)))
122 (defsql sql-like (:symbol "like") (&rest rest)
123 (make-instance 'sql-relational-exp
124 :operator 'like :sub-expressions rest))
126 (defsql sql-~* (:symbol "~*") (&rest rest)
127 "This is the postgres regex match operator"
128 (make-instance 'sql-relational-exp
129 :operator '~* :sub-expressions rest))
131 (defsql |sql-~* ANY| (:symbol "~* ANY") (&rest rest)
132 "This is the postgres regex match any in an array"
133 (make-instance 'sql-relational-exp
134 :operator '|~* ANY| :sub-expressions rest))
136 (defsql sql-array (:symbol "array") (&rest rest)
137 "This is the postgres regex match any in an array"
138 (make-instance 'sql-array-exp
139 :operator 'array :sub-expressions rest))
141 (defsql sql-uplike (:symbol "uplike") (&rest rest)
142 (make-instance 'sql-upcase-like
143 :sub-expressions rest))
145 (defsql sql-and (:symbol "and") (&rest rest)
146 (make-instance 'sql-relational-exp
147 :operator 'and :sub-expressions rest))
149 (defsql sql-or (:symbol "or") (&rest rest)
150 (make-instance 'sql-relational-exp
151 :operator 'or :sub-expressions rest))
153 (defsql sql-in (:symbol "in") (&rest rest)
154 (make-instance 'sql-relational-exp
155 :operator 'in :sub-expressions rest))
157 (defsql sql-concat-op (:symbol "concat-op") (&rest rest)
158 (make-instance 'sql-relational-exp
159 :operator '\|\| :sub-expressions rest))
161 (defsql sql-concat (:symbol "concat") (&rest rest)
162 (make-instance 'sql-function-exp
163 :name 'concat :args rest))
165 (defsql sql-substr (:symbol "substr") (&rest rest)
166 (if (= (length rest) 3)
167 (make-instance 'sql-function-exp
168 :name 'substr :args rest)
169 (error 'sql-user-error :message "SUBSTR must have 3 arguments.")))
172 (defsql sql-substring (:symbol "substring") (&rest rest)
173 (if (= (length rest) 3)
174 (make-instance 'sql-function-exp
175 :name 'substring :args rest)
176 (error 'sql-user-error :message "SUBSTRING must have 3 arguments.")))
178 (defsql sql-is (:symbol "is") (&rest rest)
179 (make-instance 'sql-relational-exp
180 :operator 'is :sub-expressions rest))
182 (defsql sql-= (:symbol "=") (&rest rest)
183 (make-instance 'sql-relational-exp
184 :operator '= :sub-expressions rest))
186 (defsql sql-== (:symbol "==") (&rest rest)
187 (make-instance 'sql-assignment-exp
188 :operator '= :sub-expressions rest))
190 (defsql sql-< (:symbol "<") (&rest rest)
191 (make-instance 'sql-relational-exp
192 :operator '< :sub-expressions rest))
195 (defsql sql-> (:symbol ">") (&rest rest)
196 (make-instance 'sql-relational-exp
197 :operator '> :sub-expressions rest))
199 (defsql sql-<> (:symbol "<>") (&rest rest)
200 (make-instance 'sql-relational-exp
201 :operator '<> :sub-expressions rest))
203 (defsql sql->= (:symbol ">=") (&rest rest)
204 (make-instance 'sql-relational-exp
205 :operator '>= :sub-expressions rest))
207 (defsql sql-<= (:symbol "<=") (&rest rest)
208 (make-instance 'sql-relational-exp
209 :operator '<= :sub-expressions rest))
211 (defsql sql-count (:symbol "count") (&rest rest)
212 (make-instance 'sql-function-exp
213 :name 'count :args rest))
215 (defsql sql-max (:symbol "max") (&rest rest)
216 (make-instance 'sql-function-exp
217 :name 'max :args rest))
219 (defsql sql-min (:symbol "min") (&rest rest)
220 (make-instance 'sql-function-exp
221 :name 'min :args rest))
223 (defsql sql-avg (:symbol "avg") (&rest rest)
224 (make-instance 'sql-function-exp
225 :name 'avg :args rest))
227 (defsql sql-sum (:symbol "sum") (&rest rest)
228 (make-instance 'sql-function-exp
229 :name 'sum :args rest))
231 (defsql sql-the (:symbol "the") (&rest rest)
232 (make-instance 'sql-typecast-exp
233 :modifier (first rest) :components (second rest)))
235 (defsql sql-function (:symbol "function") (&rest args)
236 (make-instance 'sql-function-exp
237 :name (make-symbol (car args)) :args (cdr args)))
239 (defsql sql-between (:symbol "between") (&rest rest)
240 (if (= (length rest) 3)
241 (make-instance 'sql-between-exp :name 'between :args rest)
242 (error 'sql-user-error :message "BETWEEN must have 3 arguments.")))
244 (defsql sql-distinct (:symbol "distinct") (&rest rest)
245 (make-instance 'sql-query-modifier-exp :modifier 'distinct
248 (defsql sql-coalesce (:symbol "coalesce") (&rest rest)
249 (make-instance 'sql-function-exp
250 :name 'coalesce :args rest))
252 (defsql sql-nvl (:symbol "nvl") (&rest rest)
253 (if (= (length rest) 2)
254 (make-instance 'sql-function-exp
255 :name 'coalesce :args rest)
256 (error 'sql-user-error :message "NVL accepts exactly 2 arguments.")))
258 (defsql sql-userenv (:symbol "userenv") (&rest rest)
259 (make-instance 'sql-function-exp
260 :name 'userenv :args rest))
262 (defsql sql-lower (:symbol "lower") (&rest rest)
263 (if (= (length rest) 1)
264 (make-instance 'sql-function-exp
265 :name 'lower :args rest)
266 (error 'sql-user-error :message "LOWER must have 1 argument.")))
268 (defsql sql-upper (:symbol "upper") (&rest rest)
269 (if (= (length rest) 1)
270 (make-instance 'sql-function-exp
271 :name 'upper :args rest)
272 (error 'sql-user-error :message "UPPER must have 1 argument.")))
274 (defsql sql-date_part (:symbol "date_part") (&rest rest)
275 "the date_part function for postgres"
276 (if (= (length rest) 2)
277 (make-instance 'sql-function-exp
278 :name 'date_part :args rest)
279 (error 'sql-user-error :message "date_part must have 2 arguments.")))