Commit | Line | Data |
84012a55 |
1 | package SQL::Translator::Parser::PostgreSQL; |
4422e22a |
2 | |
3 | # ------------------------------------------------------------------- |
a20abbda |
4 | # $Id: PostgreSQL.pm,v 1.50 2007-11-13 19:25:04 mwz444 Exp $ |
4422e22a |
5 | # ------------------------------------------------------------------- |
90075866 |
6 | # Copyright (C) 2002-4 SQLFairy Authors |
4422e22a |
7 | # |
8 | # This program is free software; you can redistribute it and/or |
9 | # modify it under the terms of the GNU General Public License as |
10 | # published by the Free Software Foundation; version 2. |
11 | # |
12 | # This program is distributed in the hope that it will be useful, but |
13 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
15 | # General Public License for more details. |
16 | # |
17 | # You should have received a copy of the GNU General Public License |
18 | # along with this program; if not, write to the Free Software |
0efb6e1b |
19 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
4422e22a |
20 | # 02111-1307 USA |
21 | # ------------------------------------------------------------------- |
22 | |
23 | =head1 NAME |
24 | |
84012a55 |
25 | SQL::Translator::Parser::PostgreSQL - parser for PostgreSQL |
4422e22a |
26 | |
27 | =head1 SYNOPSIS |
28 | |
29 | use SQL::Translator; |
84012a55 |
30 | use SQL::Translator::Parser::PostgreSQL; |
4422e22a |
31 | |
32 | my $translator = SQL::Translator->new; |
84012a55 |
33 | $translator->parser("SQL::Translator::Parser::PostgreSQL"); |
4422e22a |
34 | |
35 | =head1 DESCRIPTION |
36 | |
0efb6e1b |
37 | The grammar was started from the MySQL parsers. Here is the description |
38 | from PostgreSQL: |
39 | |
40 | Table: |
629b76f9 |
41 | (http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createtable.html) |
42 | |
43 | CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name ( |
44 | { column_name data_type [ DEFAULT default_expr ] |
45 | [ column_constraint [, ... ] ] |
46 | | table_constraint } [, ... ] |
47 | ) |
48 | [ INHERITS ( parent_table [, ... ] ) ] |
49 | [ WITH OIDS | WITHOUT OIDS ] |
50 | |
51 | where column_constraint is: |
52 | |
53 | [ CONSTRAINT constraint_name ] |
54 | { NOT NULL | NULL | UNIQUE | PRIMARY KEY | |
55 | CHECK (expression) | |
56 | REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ] |
57 | [ ON DELETE action ] [ ON UPDATE action ] } |
58 | [ DEFERRABLE | NOT DEFERRABLE ] |
59 | [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
60 | |
61 | and table_constraint is: |
62 | |
63 | [ CONSTRAINT constraint_name ] |
64 | { UNIQUE ( column_name [, ... ] ) | |
65 | PRIMARY KEY ( column_name [, ... ] ) | |
66 | CHECK ( expression ) | |
67 | FOREIGN KEY ( column_name [, ... ] ) |
68 | REFERENCES reftable [ ( refcolumn [, ... ] ) ] |
69 | [ MATCH FULL | MATCH PARTIAL ] |
70 | [ ON DELETE action ] [ ON UPDATE action ] } |
71 | [ DEFERRABLE | NOT DEFERRABLE ] |
72 | [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
0efb6e1b |
73 | |
74 | Index: |
629b76f9 |
75 | (http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createindex.html) |
0efb6e1b |
76 | |
629b76f9 |
77 | CREATE [ UNIQUE ] INDEX index_name ON table |
78 | [ USING acc_method ] ( column [ ops_name ] [, ...] ) |
79 | [ WHERE predicate ] |
80 | CREATE [ UNIQUE ] INDEX index_name ON table |
81 | [ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] ) |
82 | [ WHERE predicate ] |
4422e22a |
83 | |
0012a163 |
84 | Alter table: |
85 | |
86 | ALTER TABLE [ ONLY ] table [ * ] |
87 | ADD [ COLUMN ] column type [ column_constraint [ ... ] ] |
88 | ALTER TABLE [ ONLY ] table [ * ] |
89 | ALTER [ COLUMN ] column { SET DEFAULT value | DROP DEFAULT } |
90 | ALTER TABLE [ ONLY ] table [ * ] |
91 | ALTER [ COLUMN ] column SET STATISTICS integer |
92 | ALTER TABLE [ ONLY ] table [ * ] |
93 | RENAME [ COLUMN ] column TO newcolumn |
94 | ALTER TABLE table |
95 | RENAME TO new_table |
96 | ALTER TABLE table |
97 | ADD table_constraint_definition |
98 | ALTER TABLE [ ONLY ] table |
99 | DROP CONSTRAINT constraint { RESTRICT | CASCADE } |
100 | ALTER TABLE table |
101 | OWNER TO new_owner |
102 | |
3022f45b |
103 | View table: |
104 | |
105 | CREATE [ OR REPLACE ] VIEW view [ ( column name list ) ] AS SELECT query |
106 | |
4422e22a |
107 | =cut |
108 | |
109 | use strict; |
110 | use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ]; |
a20abbda |
111 | $VERSION = sprintf "%d.%02d", q$Revision: 1.50 $ =~ /(\d+)\.(\d+)/; |
4422e22a |
112 | $DEBUG = 0 unless defined $DEBUG; |
113 | |
114 | use Data::Dumper; |
115 | use Parse::RecDescent; |
116 | use Exporter; |
117 | use base qw(Exporter); |
118 | |
119 | @EXPORT_OK = qw(parse); |
120 | |
121 | # Enable warnings within the Parse::RecDescent module. |
122 | $::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error |
123 | $::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c. |
124 | $::RD_HINT = 1; # Give out hints to help fix problems. |
125 | |
126 | my $parser; # should we do this? There's no programmic way to |
127 | # change the grammar, so I think this is safe. |
128 | |
129 | $GRAMMAR = q! |
130 | |
00ef67ea |
131 | { my ( %tables, $table_order, $field_order, @table_comments) } |
4422e22a |
132 | |
629b76f9 |
133 | # |
134 | # The "eofile" rule makes the parser fail if any "statement" rule |
135 | # fails. Otherwise, the first successful match by a "statement" |
136 | # won't cause the failure needed to know that the parse, as a whole, |
137 | # failed. -ky |
138 | # |
0efb6e1b |
139 | startrule : statement(s) eofile { \%tables } |
4422e22a |
140 | |
0efb6e1b |
141 | eofile : /^\Z/ |
e4a9818d |
142 | |
0efb6e1b |
143 | |
144 | statement : create |
ac397a49 |
145 | | comment_on_table |
146 | | comment_on_column |
e4a9818d |
147 | | comment_on_other |
0efb6e1b |
148 | | comment |
0012a163 |
149 | | alter |
0efb6e1b |
150 | | grant |
151 | | revoke |
4422e22a |
152 | | drop |
4d2da1f7 |
153 | | insert |
0efb6e1b |
154 | | connect |
4d2da1f7 |
155 | | update |
0012a163 |
156 | | set |
4422e22a |
157 | | <error> |
158 | |
0efb6e1b |
159 | connect : /^\s*\\\connect.*\n/ |
160 | |
f04713db |
161 | set : /set/i /[^;]*/ ';' |
0012a163 |
162 | |
0d51cd9e |
163 | revoke : /revoke/i WORD(s /,/) /on/i TABLE(?) table_name /from/i name_with_opt_quotes(s /,/) ';' |
0efb6e1b |
164 | { |
a20abbda |
165 | my $table_info = $item{'table_name'}; |
166 | my $schema_name = $table_info->{'schema_name'}; |
167 | my $table_name = $table_info->{'table_name'}; |
0efb6e1b |
168 | push @{ $tables{ $table_name }{'permissions'} }, { |
169 | type => 'revoke', |
170 | actions => $item[2], |
91c75eab |
171 | users => $item[7], |
0efb6e1b |
172 | } |
173 | } |
174 | |
0d51cd9e |
175 | grant : /grant/i WORD(s /,/) /on/i TABLE(?) table_name /to/i name_with_opt_quotes(s /,/) ';' |
0efb6e1b |
176 | { |
a20abbda |
177 | my $table_info = $item{'table_name'}; |
178 | my $schema_name = $table_info->{'schema_name'}; |
179 | my $table_name = $table_info->{'table_name'}; |
0efb6e1b |
180 | push @{ $tables{ $table_name }{'permissions'} }, { |
181 | type => 'grant', |
182 | actions => $item[2], |
91c75eab |
183 | users => $item[7], |
0efb6e1b |
184 | } |
185 | } |
186 | |
187 | drop : /drop/i /[^;]*/ ';' |
4422e22a |
188 | |
9bf756df |
189 | string : |
190 | /'(\\.|''|[^\\\'])*'/ |
4d2da1f7 |
191 | |
9bf756df |
192 | nonstring : /[^;\'"]+/ |
193 | |
194 | statement_body : (string | nonstring)(s?) |
195 | |
196 | insert : /insert/i statement_body ';' |
197 | |
198 | update : /update/i statement_body ';' |
4d2da1f7 |
199 | |
0012a163 |
200 | # |
201 | # Create table. |
202 | # |
c7ea1132 |
203 | create : create_table table_name '(' create_definition(s? /,/) ')' table_option(s?) ';' |
0efb6e1b |
204 | { |
a20abbda |
205 | my $table_info = $item{'table_name'}; |
206 | my $schema_name = $table_info->{'schema_name'}; |
207 | my $table_name = $table_info->{'table_name'}; |
208 | $tables{ $table_name }{'order'} = ++$table_order; |
209 | $tables{ $table_name }{'schema_name'} = $schema_name; |
210 | $tables{ $table_name }{'table_name'} = $table_name; |
0efb6e1b |
211 | |
ac397a49 |
212 | if ( @table_comments ) { |
213 | $tables{ $table_name }{'comments'} = [ @table_comments ]; |
214 | @table_comments = (); |
215 | } |
216 | |
0efb6e1b |
217 | my @constraints; |
218 | for my $definition ( @{ $item[4] } ) { |
b3384294 |
219 | if ( $definition->{'supertype'} eq 'field' ) { |
0efb6e1b |
220 | my $field_name = $definition->{'name'}; |
221 | $tables{ $table_name }{'fields'}{ $field_name } = |
00ef67ea |
222 | { %$definition, order => $field_order++ }; |
4422e22a |
223 | |
0138f7bb |
224 | for my $constraint ( @{ $definition->{'constraints'} || [] } ) { |
225 | $constraint->{'fields'} = [ $field_name ]; |
7d5bcab8 |
226 | push @{ $tables{ $table_name }{'constraints'} }, |
0138f7bb |
227 | $constraint; |
0efb6e1b |
228 | } |
229 | } |
b3384294 |
230 | elsif ( $definition->{'supertype'} eq 'constraint' ) { |
231 | push @{ $tables{ $table_name }{'constraints'} }, $definition; |
0efb6e1b |
232 | } |
b3384294 |
233 | elsif ( $definition->{'supertype'} eq 'index' ) { |
0efb6e1b |
234 | push @{ $tables{ $table_name }{'indices'} }, $definition; |
235 | } |
236 | } |
237 | |
238 | for my $option ( @{ $item[6] } ) { |
3022f45b |
239 | $tables{ $table_name }{'table_options(s?)'}{ $option->{'type'} } = |
0efb6e1b |
240 | $option; |
241 | } |
242 | |
243 | 1; |
244 | } |
245 | |
211e2e90 |
246 | create : CREATE unique(?) /(index|key)/i index_name /on/i table_name using_method(?) '(' field_name(s /,/) ')' where_predicate(?) ';' |
4422e22a |
247 | { |
a20abbda |
248 | my $table_info = $item{'table_name'}; |
249 | my $schema_name = $table_info->{'schema_name'}; |
250 | my $table_name = $table_info->{'table_name'}; |
251 | push @{ $tables{ $table_name }{'indices'} }, |
4422e22a |
252 | { |
b3384294 |
253 | name => $item{'index_name'}, |
254 | supertype => $item{'unique'}[0] ? 'constraint' : 'index', |
255 | type => $item{'unique'}[0] ? 'unique' : 'normal', |
256 | fields => $item[9], |
257 | method => $item{'using_method'}[0], |
4422e22a |
258 | } |
259 | ; |
ac397a49 |
260 | |
4422e22a |
261 | } |
262 | |
0012a163 |
263 | # |
211e2e90 |
264 | # Create anything else (e.g., domain, etc.) |
0012a163 |
265 | # |
211e2e90 |
266 | create : CREATE WORD /[^;]+/ ';' |
ac397a49 |
267 | { @table_comments = (); } |
0012a163 |
268 | |
0efb6e1b |
269 | using_method : /using/i WORD { $item[2] } |
270 | |
271 | where_predicate : /where/i /[^;]+/ |
272 | |
273 | create_definition : field |
0efb6e1b |
274 | | table_constraint |
4422e22a |
275 | | <error> |
276 | |
a82fa2cb |
277 | comment : /^\s*(?:#|-{2})(.*)\n/ |
278 | { |
279 | my $comment = $item[1]; |
280 | $comment =~ s/^\s*(#|-*)\s*//; |
281 | $comment =~ s/\s*$//; |
ac397a49 |
282 | $return = $comment; |
283 | push @table_comments, $comment; |
284 | } |
285 | |
ac397a49 |
286 | comment_on_table : /comment/i /on/i /table/i table_name /is/i comment_phrase ';' |
287 | { |
a20abbda |
288 | my $table_info = $item{'table_name'}; |
289 | my $schema_name = $table_info->{'schema_name'}; |
290 | my $table_name = $table_info->{'table_name'}; |
291 | push @{ $tables{ $table_name }{'comments'} }, $item{'comment_phrase'}; |
ac397a49 |
292 | } |
293 | |
294 | comment_on_column : /comment/i /on/i /column/i column_name /is/i comment_phrase ';' |
295 | { |
296 | my $table_name = $item[4]->{'table'}; |
297 | my $field_name = $item[4]->{'field'}; |
e1fa2c52 |
298 | if ($tables{ $table_name }{'fields'}{ $field_name } ) { |
299 | push @{ $tables{ $table_name }{'fields'}{ $field_name }{'comments'} }, |
300 | $item{'comment_phrase'}; |
301 | } |
302 | else { |
303 | die "No such column as $table_name.$field_name"; |
304 | } |
ac397a49 |
305 | } |
306 | |
e4a9818d |
307 | comment_on_other : /comment/i /on/i /\w+/ /\w+/ /is/i comment_phrase ';' |
308 | { |
309 | push(@table_comments, $item{'comment_phrase'}); |
310 | } |
311 | |
312 | # [added by cjm 20041019] |
313 | # [TODO: other comment-on types] |
314 | # for now we just have a general mechanism for handling other |
315 | # kinds of comments than table/column; I'm not sure of the best |
316 | # way to incorporate these into the datamodel |
317 | # |
318 | # this is the exhaustive list of types of comment: |
319 | #COMMENT ON DATABASE my_database IS 'Development Database'; |
320 | #COMMENT ON INDEX my_index IS 'Enforces uniqueness on employee id'; |
321 | #COMMENT ON RULE my_rule IS 'Logs UPDATES of employee records'; |
322 | #COMMENT ON SEQUENCE my_sequence IS 'Used to generate primary keys'; |
323 | #COMMENT ON TABLE my_table IS 'Employee Information'; |
324 | #COMMENT ON TYPE my_type IS 'Complex Number support'; |
325 | #COMMENT ON VIEW my_view IS 'View of departmental costs'; |
326 | #COMMENT ON COLUMN my_table.my_field IS 'Employee ID number'; |
327 | #COMMENT ON TRIGGER my_trigger ON my_table IS 'Used for R.I.'; |
328 | # |
329 | # this is tested by test 08 |
330 | |
ac397a49 |
331 | column_name : NAME '.' NAME |
332 | { $return = { table => $item[1], field => $item[3] } } |
333 | |
e4a9818d |
334 | comment_phrase : /null/i |
335 | { $return = 'NULL' } |
336 | |
337 | comment_phrase : /'/ comment_phrase_unquoted(s) /'/ |
338 | { my $phrase = join(' ', @{ $item[2] }); |
339 | $return = $phrase} |
340 | |
341 | # [cjm TODO: double-single quotes in a comment_phrase] |
342 | comment_phrase_unquoted : /[^\']*/ |
343 | { $return = $item[1] } |
344 | |
345 | |
346 | xxxcomment_phrase : /'.*?'|NULL/ |
ac397a49 |
347 | { |
8e9e79dc |
348 | my $val = $item[1] || ''; |
ac397a49 |
349 | $val =~ s/^'|'$//g; |
350 | $return = $val; |
351 | } |
352 | |
a82fa2cb |
353 | field : field_comment(s?) field_name data_type field_meta(s?) field_comment(s?) |
4422e22a |
354 | { |
3022f45b |
355 | my ( $default, @constraints, $is_pk ); |
00ef67ea |
356 | my $is_nullable = 1; |
41fc9cb3 |
357 | for my $meta ( @{ $item[4] } ) { |
82968eb9 |
358 | if ( $meta->{'type'} eq 'default' ) { |
359 | $default = $meta; |
360 | next; |
361 | } |
362 | elsif ( $meta->{'type'} eq 'not_null' ) { |
00ef67ea |
363 | $is_nullable = 0; |
82968eb9 |
364 | } |
365 | elsif ( $meta->{'type'} eq 'primary_key' ) { |
366 | $is_pk = 1; |
367 | } |
4422e22a |
368 | |
82968eb9 |
369 | push @constraints, $meta if $meta->{'supertype'} eq 'constraint'; |
370 | } |
0efb6e1b |
371 | |
f2f71b8e |
372 | my @comments = ( @{ $item[1] }, @{ $item[5] } ); |
373 | |
0a7fc605 |
374 | $return = { |
b3384294 |
375 | supertype => 'field', |
7eac5e12 |
376 | name => $item{'field_name'}, |
377 | data_type => $item{'data_type'}{'type'}, |
378 | size => $item{'data_type'}{'size'}, |
00ef67ea |
379 | is_nullable => $is_nullable, |
7eac5e12 |
380 | default => $default->{'value'}, |
381 | constraints => [ @constraints ], |
382 | comments => [ @comments ], |
383 | is_primary_key => $is_pk || 0, |
384 | is_auto_increment => $item{'data_type'}{'is_auto_increment'}, |
4422e22a |
385 | } |
386 | } |
387 | | <error> |
388 | |
a82fa2cb |
389 | field_comment : /^\s*(?:#|-{2})(.*)\n/ |
390 | { |
391 | my $comment = $item[1]; |
392 | $comment =~ s/^\s*(#|-*)\s*//; |
393 | $comment =~ s/\s*$//; |
394 | $return = $comment; |
395 | } |
396 | |
0efb6e1b |
397 | field_meta : default_val |
82968eb9 |
398 | | column_constraint |
4422e22a |
399 | |
0efb6e1b |
400 | column_constraint : constraint_name(?) column_constraint_type deferrable(?) deferred(?) |
401 | { |
402 | my $desc = $item{'column_constraint_type'}; |
403 | my $type = $desc->{'type'}; |
404 | my $fields = $desc->{'fields'} || []; |
405 | my $expression = $desc->{'expression'} || ''; |
406 | |
407 | $return = { |
82968eb9 |
408 | supertype => 'constraint', |
0efb6e1b |
409 | name => $item{'constraint_name'}[0] || '', |
410 | type => $type, |
411 | expression => $type eq 'check' ? $expression : '', |
f04713db |
412 | deferrable => $item{'deferrable'}, |
0efb6e1b |
413 | deferred => $item{'deferred'}, |
414 | reference_table => $desc->{'reference_table'}, |
415 | reference_fields => $desc->{'reference_fields'}, |
416 | match_type => $desc->{'match_type'}, |
100684f3 |
417 | on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'}, |
418 | on_update => $desc->{'on_update'} || $desc->{'on_update_do'}, |
4422e22a |
419 | } |
420 | } |
421 | |
0efb6e1b |
422 | constraint_name : /constraint/i name_with_opt_quotes { $item[2] } |
423 | |
424 | column_constraint_type : /not null/i { $return = { type => 'not_null' } } |
425 | | |
f04713db |
426 | /null/i |
0efb6e1b |
427 | { $return = { type => 'null' } } |
428 | | |
f04713db |
429 | /unique/i |
0efb6e1b |
430 | { $return = { type => 'unique' } } |
431 | | |
432 | /primary key/i |
433 | { $return = { type => 'primary_key' } } |
434 | | |
435 | /check/i '(' /[^)]+/ ')' |
b3384294 |
436 | { $return = { type => 'check', expression => $item[3] } } |
0efb6e1b |
437 | | |
3022f45b |
438 | /references/i table_name parens_word_list(?) match_type(?) key_action(s?) |
0efb6e1b |
439 | { |
a20abbda |
440 | my $table_info = $item{'table_name'}; |
441 | my $schema_name = $table_info->{'schema_name'}; |
442 | my $table_name = $table_info->{'table_name'}; |
3022f45b |
443 | my ( $on_delete, $on_update ); |
444 | for my $action ( @{ $item[5] || [] } ) { |
445 | $on_delete = $action->{'action'} if $action->{'type'} eq 'delete'; |
446 | $on_update = $action->{'action'} if $action->{'type'} eq 'update'; |
447 | } |
448 | |
0efb6e1b |
449 | $return = { |
450 | type => 'foreign_key', |
a20abbda |
451 | reference_table => $table_name, |
0138f7bb |
452 | reference_fields => $item[3][0], |
0efb6e1b |
453 | match_type => $item[4][0], |
100684f3 |
454 | on_delete => $on_delete, |
455 | on_update => $on_update, |
ba1a1626 |
456 | } |
4422e22a |
457 | } |
458 | |
a20abbda |
459 | table_name : schema_qualification(?) name_with_opt_quotes { |
460 | $return = { schema_name => $item[1], table_name => $item[2] } |
461 | } |
462 | |
463 | schema_qualification : name_with_opt_quotes '.' |
4422e22a |
464 | |
0efb6e1b |
465 | field_name : name_with_opt_quotes |
4422e22a |
466 | |
0012a163 |
467 | name_with_opt_quotes : double_quote(?) NAME double_quote(?) { $item[2] } |
4422e22a |
468 | |
0efb6e1b |
469 | double_quote: /"/ |
4422e22a |
470 | |
0efb6e1b |
471 | index_name : WORD |
4422e22a |
472 | |
0efb6e1b |
473 | data_type : pg_data_type parens_value_list(?) |
4422e22a |
474 | { |
3022f45b |
475 | my $data_type = $item[1]; |
ba1a1626 |
476 | |
0efb6e1b |
477 | # |
478 | # We can deduce some sizes from the data type's name. |
479 | # |
44ffdb73 |
480 | if ( my $size = $item[2][0] ) { |
481 | $data_type->{'size'} = $size; |
482 | } |
4422e22a |
483 | |
3022f45b |
484 | $return = $data_type; |
4422e22a |
485 | } |
486 | |
0efb6e1b |
487 | pg_data_type : |
50840472 |
488 | /(bigint|int8)/i |
3022f45b |
489 | { |
490 | $return = { |
50840472 |
491 | type => 'integer', |
b8ea6076 |
492 | size => 20, |
3022f45b |
493 | }; |
494 | } |
0efb6e1b |
495 | | |
1bbd4a2b |
496 | /(smallint|int2)/i |
3022f45b |
497 | { |
498 | $return = { |
499 | type => 'integer', |
b8ea6076 |
500 | size => 5, |
3022f45b |
501 | }; |
502 | } |
0efb6e1b |
503 | | |
c4c363bb |
504 | /interval/i |
505 | { |
506 | $return = { type => 'interval' }; |
507 | } |
508 | | |
50840472 |
509 | /(integer|int4?)/i # interval must come before this |
3022f45b |
510 | { |
511 | $return = { |
512 | type => 'integer', |
b8ea6076 |
513 | size => 10, |
3022f45b |
514 | }; |
515 | } |
50840472 |
516 | | |
517 | /(real|float4)/i |
518 | { |
519 | $return = { |
520 | type => 'real', |
b8ea6076 |
521 | size => 10, |
50840472 |
522 | }; |
523 | } |
0efb6e1b |
524 | | |
1bbd4a2b |
525 | /(double precision|float8?)/i |
3022f45b |
526 | { |
527 | $return = { |
528 | type => 'float', |
b8ea6076 |
529 | size => 20, |
3022f45b |
530 | }; |
531 | } |
0efb6e1b |
532 | | |
50840472 |
533 | /(bigserial|serial8)/i |
3022f45b |
534 | { |
50840472 |
535 | $return = { |
7eac5e12 |
536 | type => 'integer', |
b8ea6076 |
537 | size => 20, |
7eac5e12 |
538 | is_auto_increment => 1, |
3022f45b |
539 | }; |
540 | } |
0efb6e1b |
541 | | |
1bbd4a2b |
542 | /serial4?/i |
3022f45b |
543 | { |
544 | $return = { |
7eac5e12 |
545 | type => 'integer', |
b8ea6076 |
546 | size => 11, |
7eac5e12 |
547 | is_auto_increment => 1, |
3022f45b |
548 | }; |
549 | } |
0efb6e1b |
550 | | |
1bbd4a2b |
551 | /(bit varying|varbit)/i |
3022f45b |
552 | { |
553 | $return = { type => 'varbit' }; |
554 | } |
0efb6e1b |
555 | | |
1bbd4a2b |
556 | /character varying/i |
3022f45b |
557 | { |
558 | $return = { type => 'varchar' }; |
559 | } |
0efb6e1b |
560 | | |
1bbd4a2b |
561 | /char(acter)?/i |
3022f45b |
562 | { |
563 | $return = { type => 'char' }; |
564 | } |
0efb6e1b |
565 | | |
1bbd4a2b |
566 | /bool(ean)?/i |
3022f45b |
567 | { |
568 | $return = { type => 'boolean' }; |
569 | } |
0efb6e1b |
570 | | |
1bbd4a2b |
571 | /bytea/i |
3022f45b |
572 | { |
82968eb9 |
573 | $return = { type => 'bytea' }; |
3022f45b |
574 | } |
0efb6e1b |
575 | | |
b0f2faf8 |
576 | /(timestamptz|timestamp)(?:\(\d\))?( with(out)? time zone)?/i |
3022f45b |
577 | { |
578 | $return = { type => 'timestamp' }; |
579 | } |
0efb6e1b |
580 | | |
38a6a4f9 |
581 | /text/i |
582 | { |
583 | $return = { |
584 | type => 'text', |
585 | size => 64_000, |
586 | }; |
587 | } |
588 | | |
c4c363bb |
589 | /(bit|box|cidr|circle|date|inet|line|lseg|macaddr|money|numeric|decimal|path|point|polygon|timetz|time|varchar)/i |
3022f45b |
590 | { |
591 | $return = { type => $item[1] }; |
592 | } |
0efb6e1b |
593 | |
4422e22a |
594 | parens_value_list : '(' VALUE(s /,/) ')' |
595 | { $item[2] } |
596 | |
0efb6e1b |
597 | parens_word_list : '(' WORD(s /,/) ')' |
598 | { $item[2] } |
4422e22a |
599 | |
0efb6e1b |
600 | field_size : '(' num_range ')' { $item{'num_range'} } |
4422e22a |
601 | |
0efb6e1b |
602 | num_range : DIGITS ',' DIGITS |
4422e22a |
603 | { $return = $item[1].','.$item[3] } |
604 | | DIGITS |
605 | { $return = $item[1] } |
606 | |
f2f71b8e |
607 | table_constraint : comment(s?) constraint_name(?) table_constraint_type deferrable(?) deferred(?) comment(s?) |
0efb6e1b |
608 | { |
609 | my $desc = $item{'table_constraint_type'}; |
610 | my $type = $desc->{'type'}; |
611 | my $fields = $desc->{'fields'}; |
612 | my $expression = $desc->{'expression'}; |
f2f71b8e |
613 | my @comments = ( @{ $item[1] }, @{ $item[-1] } ); |
0efb6e1b |
614 | |
615 | $return = { |
616 | name => $item{'constraint_name'}[0] || '', |
b3384294 |
617 | supertype => 'constraint', |
618 | type => $type, |
0efb6e1b |
619 | fields => $type ne 'check' ? $fields : [], |
620 | expression => $type eq 'check' ? $expression : '', |
f04713db |
621 | deferrable => $item{'deferrable'}, |
0efb6e1b |
622 | deferred => $item{'deferred'}, |
623 | reference_table => $desc->{'reference_table'}, |
624 | reference_fields => $desc->{'reference_fields'}, |
625 | match_type => $desc->{'match_type'}[0], |
100684f3 |
626 | on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'}, |
627 | on_update => $desc->{'on_update'} || $desc->{'on_update_do'}, |
f2f71b8e |
628 | comments => [ @comments ], |
0efb6e1b |
629 | } |
630 | } |
4422e22a |
631 | |
0efb6e1b |
632 | table_constraint_type : /primary key/i '(' name_with_opt_quotes(s /,/) ')' |
633 | { |
634 | $return = { |
635 | type => 'primary_key', |
636 | fields => $item[3], |
637 | } |
638 | } |
639 | | |
640 | /unique/i '(' name_with_opt_quotes(s /,/) ')' |
641 | { |
642 | $return = { |
643 | type => 'unique', |
644 | fields => $item[3], |
645 | } |
646 | } |
647 | | |
b3384294 |
648 | /check/i '(' /[^)]+/ ')' |
0efb6e1b |
649 | { |
650 | $return = { |
651 | type => 'check', |
652 | expression => $item[3], |
653 | } |
654 | } |
655 | | |
3022f45b |
656 | /foreign key/i '(' name_with_opt_quotes(s /,/) ')' /references/i table_name parens_word_list(?) match_type(?) key_action(s?) |
0efb6e1b |
657 | { |
3022f45b |
658 | my ( $on_delete, $on_update ); |
659 | for my $action ( @{ $item[9] || [] } ) { |
660 | $on_delete = $action->{'action'} if $action->{'type'} eq 'delete'; |
661 | $on_update = $action->{'action'} if $action->{'type'} eq 'update'; |
662 | } |
663 | |
0efb6e1b |
664 | $return = { |
b3384294 |
665 | supertype => 'constraint', |
0efb6e1b |
666 | type => 'foreign_key', |
667 | fields => $item[3], |
a20abbda |
668 | reference_table => $item[6]->{'table_name'}, |
0efb6e1b |
669 | reference_fields => $item[7][0], |
670 | match_type => $item[8][0], |
100684f3 |
671 | on_delete => $on_delete || '', |
672 | on_update => $on_update || '', |
0efb6e1b |
673 | } |
674 | } |
675 | |
99f3fab6 |
676 | deferrable : not(?) /deferrable/i |
0efb6e1b |
677 | { |
678 | $return = ( $item[1] =~ /not/i ) ? 0 : 1; |
679 | } |
4422e22a |
680 | |
0efb6e1b |
681 | deferred : /initially/i /(deferred|immediate)/i { $item[2] } |
4422e22a |
682 | |
0efb6e1b |
683 | match_type : /match full/i { 'match_full' } |
684 | | |
685 | /match partial/i { 'match_partial' } |
686 | |
3022f45b |
687 | key_action : key_delete |
688 | | |
689 | key_update |
0efb6e1b |
690 | |
3022f45b |
691 | key_delete : /on delete/i key_mutation |
692 | { |
8c12c406 |
693 | $return = { |
3022f45b |
694 | type => 'delete', |
695 | action => $item[2], |
696 | }; |
697 | } |
698 | |
699 | key_update : /on update/i key_mutation |
700 | { |
8c12c406 |
701 | $return = { |
3022f45b |
702 | type => 'update', |
703 | action => $item[2], |
704 | }; |
705 | } |
706 | |
707 | key_mutation : /no action/i { $return = 'no_action' } |
708 | | |
709 | /restrict/i { $return = 'restrict' } |
710 | | |
711 | /cascade/i { $return = 'cascade' } |
712 | | |
38a6a4f9 |
713 | /set null/i { $return = 'set null' } |
3022f45b |
714 | | |
38a6a4f9 |
715 | /set default/i { $return = 'set default' } |
0efb6e1b |
716 | |
00ef67ea |
717 | alter : alter_table table_name add_column field ';' |
718 | { |
719 | my $field_def = $item[4]; |
a20abbda |
720 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $field_def->{'name'} } = { |
00ef67ea |
721 | %$field_def, order => $field_order++ |
722 | }; |
723 | 1; |
724 | } |
725 | |
726 | alter : alter_table table_name ADD table_constraint ';' |
0012a163 |
727 | { |
a20abbda |
728 | my $table_name = $item[2]->{'table_name'}; |
0012a163 |
729 | my $constraint = $item[4]; |
0012a163 |
730 | push @{ $tables{ $table_name }{'constraints'} }, $constraint; |
00ef67ea |
731 | 1; |
0012a163 |
732 | } |
733 | |
00ef67ea |
734 | alter : alter_table table_name drop_column NAME restrict_or_cascade(?) ';' |
735 | { |
a20abbda |
736 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'drop'} = 1; |
00ef67ea |
737 | 1; |
738 | } |
0012a163 |
739 | |
00ef67ea |
740 | alter : alter_table table_name alter_column NAME alter_default_val ';' |
741 | { |
a20abbda |
742 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'default'} = |
00ef67ea |
743 | $item[5]->{'value'}; |
744 | 1; |
745 | } |
746 | |
747 | # |
748 | # These will just parse for now but won't affect the structure. - ky |
749 | # |
750 | alter : alter_table table_name /rename/i /to/i NAME ';' |
751 | { 1 } |
752 | |
753 | alter : alter_table table_name alter_column NAME SET /statistics/i INTEGER ';' |
754 | { 1 } |
755 | |
756 | alter : alter_table table_name alter_column NAME SET /storage/i storage_type ';' |
757 | { 1 } |
758 | |
759 | alter : alter_table table_name rename_column NAME /to/i NAME ';' |
760 | { 1 } |
761 | |
762 | alter : alter_table table_name DROP /constraint/i NAME restrict_or_cascade ';' |
763 | { 1 } |
764 | |
765 | alter : alter_table table_name /owner/i /to/i NAME ';' |
766 | { 1 } |
767 | |
6f28e7ac |
768 | alter : alter_sequence NAME /owned/i /by/i column_name ';' |
769 | { 1 } |
770 | |
00ef67ea |
771 | storage_type : /(plain|external|extended|main)/i |
772 | |
773 | alter_default_val : SET default_val |
774 | { |
775 | $return = { value => $item[2]->{'value'} } |
776 | } |
777 | | DROP DEFAULT |
778 | { |
779 | $return = { value => undef } |
780 | } |
781 | |
782 | # |
783 | # This is a little tricky to get right, at least WRT to making the |
784 | # tests pass. The problem is that the constraints are stored just as |
785 | # a list (no name access), and the tests expect the constraints in a |
786 | # particular order. I'm going to leave the rule but disable the code |
787 | # for now. - ky |
788 | # |
789 | alter : alter_table table_name alter_column NAME alter_nullable ';' |
790 | { |
a20abbda |
791 | # my $table_name = $item[2]->{'table_name'}; |
00ef67ea |
792 | # my $field_name = $item[4]; |
793 | # my $is_nullable = $item[5]->{'is_nullable'}; |
794 | # |
795 | # $tables{ $table_name }{'fields'}{ $field_name }{'is_nullable'} = |
796 | # $is_nullable; |
797 | # |
798 | # if ( $is_nullable ) { |
799 | # 1; |
800 | # push @{ $tables{ $table_name }{'constraints'} }, { |
801 | # type => 'not_null', |
802 | # fields => [ $field_name ], |
803 | # }; |
804 | # } |
805 | # else { |
806 | # for my $i ( |
807 | # 0 .. $#{ $tables{ $table_name }{'constraints'} || [] } |
808 | # ) { |
809 | # my $c = $tables{ $table_name }{'constraints'}[ $i ] or next; |
810 | # my $fields = join( '', @{ $c->{'fields'} || [] } ) or next; |
811 | # if ( $c->{'type'} eq 'not_null' && $fields eq $field_name ) { |
812 | # delete $tables{ $table_name }{'constraints'}[ $i ]; |
813 | # last; |
814 | # } |
815 | # } |
816 | # } |
817 | |
818 | 1; |
819 | } |
820 | |
821 | alter_nullable : SET not_null |
822 | { |
823 | $return = { is_nullable => 0 } |
824 | } |
825 | | DROP not_null |
826 | { |
827 | $return = { is_nullable => 1 } |
828 | } |
829 | |
830 | not_null : /not/i /null/i |
831 | |
99f3fab6 |
832 | not : /not/i |
833 | |
00ef67ea |
834 | add_column : ADD COLUMN(?) |
835 | |
836 | alter_table : ALTER TABLE ONLY(?) |
837 | |
6f28e7ac |
838 | alter_sequence : ALTER SEQUENCE |
839 | |
00ef67ea |
840 | drop_column : DROP COLUMN(?) |
841 | |
842 | alter_column : ALTER COLUMN(?) |
843 | |
844 | rename_column : /rename/i COLUMN(?) |
845 | |
846 | restrict_or_cascade : /restrict/i | |
847 | /cascade/i |
848 | |
849 | # |
850 | # End basically useless stuff. - ky |
851 | # |
0012a163 |
852 | |
211e2e90 |
853 | create_table : CREATE TABLE |
0efb6e1b |
854 | |
211e2e90 |
855 | create_index : CREATE /index/i |
4422e22a |
856 | |
00ef67ea |
857 | default_val : DEFAULT /(\d+|'[^']*'|\w+\(.*?\))|\w+/ |
4422e22a |
858 | { |
f04713db |
859 | my $val = defined $item[2] ? $item[2] : ''; |
860 | $val =~ s/^'|'$//g; |
0efb6e1b |
861 | $return = { |
82968eb9 |
862 | supertype => 'constraint', |
863 | type => 'default', |
0efb6e1b |
864 | value => $val, |
865 | } |
4422e22a |
866 | } |
f27085c9 |
867 | | /null/i |
868 | { |
869 | $return = { |
870 | supertype => 'constraint', |
871 | type => 'default', |
872 | value => 'NULL', |
873 | } |
874 | } |
4422e22a |
875 | |
4422e22a |
876 | name_with_opt_paren : NAME parens_value_list(s?) |
0efb6e1b |
877 | { $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] } |
4422e22a |
878 | |
879 | unique : /unique/i { 1 } |
880 | |
881 | key : /key/i | /index/i |
882 | |
0efb6e1b |
883 | table_option : /inherits/i '(' name_with_opt_quotes(s /,/) ')' |
4422e22a |
884 | { |
0efb6e1b |
885 | $return = { type => 'inherits', table_name => $item[3] } |
886 | } |
887 | | |
888 | /with(out)? oids/i |
889 | { |
890 | $return = { type => $item[1] =~ /out/i ? 'without_oids' : 'with_oids' } |
4422e22a |
891 | } |
892 | |
00ef67ea |
893 | ADD : /add/i |
894 | |
895 | ALTER : /alter/i |
896 | |
211e2e90 |
897 | CREATE : /create/i |
898 | |
00ef67ea |
899 | ONLY : /only/i |
900 | |
901 | DEFAULT : /default/i |
902 | |
903 | DROP : /drop/i |
904 | |
905 | COLUMN : /column/i |
906 | |
0d51cd9e |
907 | TABLE : /table/i |
908 | |
0efb6e1b |
909 | SEMICOLON : /\s*;\n?/ |
910 | |
6f28e7ac |
911 | SEQUENCE : /sequence/i |
912 | |
00ef67ea |
913 | INTEGER : /\d+/ |
914 | |
4422e22a |
915 | WORD : /\w+/ |
916 | |
917 | DIGITS : /\d+/ |
918 | |
919 | COMMA : ',' |
920 | |
00ef67ea |
921 | SET : /set/i |
922 | |
4422e22a |
923 | NAME : "`" /\w+/ "`" |
924 | { $item[2] } |
925 | | /\w+/ |
926 | { $item[1] } |
0012a163 |
927 | | /[\$\w]+/ |
928 | { $item[1] } |
4422e22a |
929 | |
930 | VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/ |
931 | { $item[1] } |
932 | | /'.*?'/ # XXX doesn't handle embedded quotes |
933 | { $item[1] } |
f04713db |
934 | | /null/i |
4422e22a |
935 | { 'NULL' } |
936 | |
937 | !; |
938 | |
939 | # ------------------------------------------------------------------- |
940 | sub parse { |
941 | my ( $translator, $data ) = @_; |
942 | $parser ||= Parse::RecDescent->new($GRAMMAR); |
943 | |
944 | $::RD_TRACE = $translator->trace ? 1 : undef; |
945 | $DEBUG = $translator->debug; |
946 | |
947 | unless (defined $parser) { |
948 | return $translator->error("Error instantiating Parse::RecDescent ". |
949 | "instance: Bad grammer"); |
950 | } |
951 | |
952 | my $result = $parser->startrule($data); |
953 | die "Parse failed.\n" unless defined $result; |
954 | warn Dumper($result) if $DEBUG; |
82968eb9 |
955 | |
956 | my $schema = $translator->schema; |
957 | my @tables = sort { |
429f639c |
958 | ( $result->{ $a }{'order'} || 0 ) <=> ( $result->{ $b }{'order'} || 0 ) |
82968eb9 |
959 | } keys %{ $result }; |
960 | |
961 | for my $table_name ( @tables ) { |
962 | my $tdata = $result->{ $table_name }; |
963 | my $table = $schema->add_table( |
a20abbda |
964 | #schema => $tdata->{'schema_name'}, |
965 | name => $tdata->{'table_name'}, |
d7fcc1d6 |
966 | ) or die "Couldn't create table '$table_name': " . $schema->error; |
82968eb9 |
967 | |
a82fa2cb |
968 | $table->comments( $tdata->{'comments'} ); |
969 | |
82968eb9 |
970 | my @fields = sort { |
429f639c |
971 | $tdata->{'fields'}{ $a }{'order'} |
82968eb9 |
972 | <=> |
429f639c |
973 | $tdata->{'fields'}{ $b }{'order'} |
82968eb9 |
974 | } keys %{ $tdata->{'fields'} }; |
975 | |
976 | for my $fname ( @fields ) { |
977 | my $fdata = $tdata->{'fields'}{ $fname }; |
00ef67ea |
978 | next if $fdata->{'drop'}; |
82968eb9 |
979 | my $field = $table->add_field( |
980 | name => $fdata->{'name'}, |
981 | data_type => $fdata->{'data_type'}, |
982 | size => $fdata->{'size'}, |
983 | default_value => $fdata->{'default'}, |
7eac5e12 |
984 | is_auto_increment => $fdata->{'is_auto_increment'}, |
00ef67ea |
985 | is_nullable => $fdata->{'is_nullable'}, |
a82fa2cb |
986 | comments => $fdata->{'comments'}, |
82968eb9 |
987 | ) or die $table->error; |
988 | |
989 | $table->primary_key( $field->name ) if $fdata->{'is_primary_key'}; |
990 | |
991 | for my $cdata ( @{ $fdata->{'constraints'} } ) { |
992 | next unless $cdata->{'type'} eq 'foreign_key'; |
993 | $cdata->{'fields'} ||= [ $field->name ]; |
994 | push @{ $tdata->{'constraints'} }, $cdata; |
995 | } |
996 | } |
997 | |
998 | for my $idata ( @{ $tdata->{'indices'} || [] } ) { |
999 | my $index = $table->add_index( |
1000 | name => $idata->{'name'}, |
1001 | type => uc $idata->{'type'}, |
1002 | fields => $idata->{'fields'}, |
1003 | ) or die $table->error; |
1004 | } |
1005 | |
1006 | for my $cdata ( @{ $tdata->{'constraints'} || [] } ) { |
1007 | my $constraint = $table->add_constraint( |
1008 | name => $cdata->{'name'}, |
1009 | type => $cdata->{'type'}, |
1010 | fields => $cdata->{'fields'}, |
1011 | reference_table => $cdata->{'reference_table'}, |
1012 | reference_fields => $cdata->{'reference_fields'}, |
1013 | match_type => $cdata->{'match_type'} || '', |
100684f3 |
1014 | on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'}, |
1015 | on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'}, |
b3384294 |
1016 | expression => $cdata->{'expression'}, |
1017 | ) or die "Can't add constraint of type '" . |
1018 | $cdata->{'type'} . "' to table '" . $table->name . |
1019 | "': " . $table->error; |
82968eb9 |
1020 | } |
1021 | } |
1022 | |
f62bd16c |
1023 | return 1; |
4422e22a |
1024 | } |
1025 | |
1026 | 1; |
1027 | |
82968eb9 |
1028 | # ------------------------------------------------------------------- |
1029 | # Rescue the drowning and tie your shoestrings. |
1030 | # Henry David Thoreau |
1031 | # ------------------------------------------------------------------- |
4422e22a |
1032 | |
1033 | =pod |
1034 | |
0efb6e1b |
1035 | =head1 AUTHORS |
4422e22a |
1036 | |
1037 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt>, |
b8ea6076 |
1038 | Allen Day E<lt>allenday@ucla.eduE<gt>. |
4422e22a |
1039 | |
1040 | =head1 SEE ALSO |
1041 | |
1042 | perl(1), Parse::RecDescent. |
1043 | |
1044 | =cut |