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1 | package SQL::Translator::Parser::PostgreSQL; |
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2 | |
3 | # ------------------------------------------------------------------- |
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4 | # Copyright (C) 2002-2009 SQLFairy Authors |
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5 | # |
6 | # This program is free software; you can redistribute it and/or |
7 | # modify it under the terms of the GNU General Public License as |
8 | # published by the Free Software Foundation; version 2. |
9 | # |
10 | # This program is distributed in the hope that it will be useful, but |
11 | # WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | # General Public License for more details. |
14 | # |
15 | # You should have received a copy of the GNU General Public License |
16 | # along with this program; if not, write to the Free Software |
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17 | # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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18 | # 02111-1307 USA |
19 | # ------------------------------------------------------------------- |
20 | |
21 | =head1 NAME |
22 | |
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23 | SQL::Translator::Parser::PostgreSQL - parser for PostgreSQL |
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24 | |
25 | =head1 SYNOPSIS |
26 | |
27 | use SQL::Translator; |
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28 | use SQL::Translator::Parser::PostgreSQL; |
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29 | |
30 | my $translator = SQL::Translator->new; |
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31 | $translator->parser("SQL::Translator::Parser::PostgreSQL"); |
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32 | |
33 | =head1 DESCRIPTION |
34 | |
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35 | The grammar was started from the MySQL parsers. Here is the description |
36 | from PostgreSQL: |
37 | |
38 | Table: |
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39 | (http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createtable.html) |
40 | |
41 | CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name ( |
42 | { column_name data_type [ DEFAULT default_expr ] |
43 | [ column_constraint [, ... ] ] |
44 | | table_constraint } [, ... ] |
45 | ) |
46 | [ INHERITS ( parent_table [, ... ] ) ] |
47 | [ WITH OIDS | WITHOUT OIDS ] |
48 | |
49 | where column_constraint is: |
50 | |
51 | [ CONSTRAINT constraint_name ] |
52 | { NOT NULL | NULL | UNIQUE | PRIMARY KEY | |
53 | CHECK (expression) | |
54 | REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ] |
55 | [ ON DELETE action ] [ ON UPDATE action ] } |
56 | [ DEFERRABLE | NOT DEFERRABLE ] |
57 | [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
58 | |
59 | and table_constraint is: |
60 | |
61 | [ CONSTRAINT constraint_name ] |
62 | { UNIQUE ( column_name [, ... ] ) | |
63 | PRIMARY KEY ( column_name [, ... ] ) | |
64 | CHECK ( expression ) | |
65 | FOREIGN KEY ( column_name [, ... ] ) |
66 | REFERENCES reftable [ ( refcolumn [, ... ] ) ] |
67 | [ MATCH FULL | MATCH PARTIAL ] |
68 | [ ON DELETE action ] [ ON UPDATE action ] } |
69 | [ DEFERRABLE | NOT DEFERRABLE ] |
70 | [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ] |
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71 | |
72 | Index: |
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73 | (http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createindex.html) |
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74 | |
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75 | CREATE [ UNIQUE ] INDEX index_name ON table |
76 | [ USING acc_method ] ( column [ ops_name ] [, ...] ) |
77 | [ WHERE predicate ] |
78 | CREATE [ UNIQUE ] INDEX index_name ON table |
79 | [ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] ) |
80 | [ WHERE predicate ] |
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81 | |
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82 | Alter table: |
83 | |
84 | ALTER TABLE [ ONLY ] table [ * ] |
85 | ADD [ COLUMN ] column type [ column_constraint [ ... ] ] |
86 | ALTER TABLE [ ONLY ] table [ * ] |
87 | ALTER [ COLUMN ] column { SET DEFAULT value | DROP DEFAULT } |
88 | ALTER TABLE [ ONLY ] table [ * ] |
89 | ALTER [ COLUMN ] column SET STATISTICS integer |
90 | ALTER TABLE [ ONLY ] table [ * ] |
91 | RENAME [ COLUMN ] column TO newcolumn |
92 | ALTER TABLE table |
93 | RENAME TO new_table |
94 | ALTER TABLE table |
95 | ADD table_constraint_definition |
96 | ALTER TABLE [ ONLY ] table |
97 | DROP CONSTRAINT constraint { RESTRICT | CASCADE } |
98 | ALTER TABLE table |
99 | OWNER TO new_owner |
100 | |
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101 | View table: |
102 | |
103 | CREATE [ OR REPLACE ] VIEW view [ ( column name list ) ] AS SELECT query |
104 | |
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105 | =cut |
106 | |
107 | use strict; |
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108 | use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ]; |
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109 | $VERSION = '1.59'; |
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110 | $DEBUG = 0 unless defined $DEBUG; |
111 | |
112 | use Data::Dumper; |
113 | use Parse::RecDescent; |
114 | use Exporter; |
115 | use base qw(Exporter); |
116 | |
117 | @EXPORT_OK = qw(parse); |
118 | |
119 | # Enable warnings within the Parse::RecDescent module. |
120 | $::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error |
121 | $::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c. |
122 | $::RD_HINT = 1; # Give out hints to help fix problems. |
123 | |
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124 | $GRAMMAR = q! |
125 | |
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126 | { my ( %tables, @views, $table_order, $field_order, @table_comments) } |
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127 | |
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128 | # |
129 | # The "eofile" rule makes the parser fail if any "statement" rule |
130 | # fails. Otherwise, the first successful match by a "statement" |
131 | # won't cause the failure needed to know that the parse, as a whole, |
132 | # failed. -ky |
133 | # |
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134 | startrule : statement(s) eofile { { tables => \%tables, views => \@views } } |
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135 | |
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136 | eofile : /^\Z/ |
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137 | |
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138 | |
139 | statement : create |
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140 | | comment_on_table |
141 | | comment_on_column |
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142 | | comment_on_other |
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143 | | comment |
0012a163 |
144 | | alter |
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145 | | grant |
146 | | revoke |
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147 | | drop |
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148 | | insert |
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149 | | connect |
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150 | | update |
0012a163 |
151 | | set |
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152 | | select |
153 | | copy |
154 | | readin_symbol |
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155 | | <error> |
156 | |
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157 | connect : /^\s*\\\connect.*\n/ |
158 | |
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159 | set : /set/i /[^;]*/ ';' |
0012a163 |
160 | |
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161 | revoke : /revoke/i WORD(s /,/) /on/i TABLE(?) table_id /from/i name_with_opt_quotes(s /,/) ';' |
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162 | { |
330e4686 |
163 | my $table_info = $item{'table_id'}; |
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164 | my $schema_name = $table_info->{'schema_name'}; |
165 | my $table_name = $table_info->{'table_name'}; |
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166 | push @{ $tables{ $table_name }{'permissions'} }, { |
167 | type => 'revoke', |
168 | actions => $item[2], |
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169 | users => $item[7], |
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170 | } |
171 | } |
172 | |
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173 | revoke : /revoke/i WORD(s /,/) /on/i SCHEMA(?) schema_name /from/i name_with_opt_quotes(s /,/) ';' |
174 | { 1 } |
175 | |
330e4686 |
176 | grant : /grant/i WORD(s /,/) /on/i TABLE(?) table_id /to/i name_with_opt_quotes(s /,/) ';' |
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177 | { |
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178 | my $table_info = $item{'table_id'}; |
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179 | my $schema_name = $table_info->{'schema_name'}; |
180 | my $table_name = $table_info->{'table_name'}; |
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181 | push @{ $tables{ $table_name }{'permissions'} }, { |
182 | type => 'grant', |
183 | actions => $item[2], |
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184 | users => $item[7], |
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185 | } |
186 | } |
187 | |
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188 | grant : /grant/i WORD(s /,/) /on/i SCHEMA(?) schema_name /to/i name_with_opt_quotes(s /,/) ';' |
189 | { 1 } |
190 | |
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191 | drop : /drop/i /[^;]*/ ';' |
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192 | |
9bf756df |
193 | string : |
194 | /'(\\.|''|[^\\\'])*'/ |
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195 | |
9bf756df |
196 | nonstring : /[^;\'"]+/ |
197 | |
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198 | statement_body : string | nonstring |
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199 | |
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200 | insert : /insert/i statement_body(s?) ';' |
9bf756df |
201 | |
9644fab3 |
202 | update : /update/i statement_body(s?) ';' |
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203 | |
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204 | # |
205 | # Create table. |
206 | # |
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207 | create : CREATE temporary(?) TABLE table_id '(' create_definition(s? /,/) ')' table_option(s?) ';' |
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208 | { |
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209 | my $table_info = $item{'table_id'}; |
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210 | my $schema_name = $table_info->{'schema_name'}; |
211 | my $table_name = $table_info->{'table_name'}; |
212 | $tables{ $table_name }{'order'} = ++$table_order; |
213 | $tables{ $table_name }{'schema_name'} = $schema_name; |
214 | $tables{ $table_name }{'table_name'} = $table_name; |
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215 | |
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216 | $tables{ $table_name }{'temporary'} = $item[2][0]; |
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217 | |
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218 | if ( @table_comments ) { |
219 | $tables{ $table_name }{'comments'} = [ @table_comments ]; |
220 | @table_comments = (); |
221 | } |
222 | |
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223 | my @constraints; |
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224 | for my $definition ( @{ $item[6] } ) { |
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225 | if ( $definition->{'supertype'} eq 'field' ) { |
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226 | my $field_name = $definition->{'name'}; |
227 | $tables{ $table_name }{'fields'}{ $field_name } = |
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228 | { %$definition, order => $field_order++ }; |
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229 | |
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230 | for my $constraint ( @{ $definition->{'constraints'} || [] } ) { |
231 | $constraint->{'fields'} = [ $field_name ]; |
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232 | push @{ $tables{ $table_name }{'constraints'} }, |
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233 | $constraint; |
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234 | } |
235 | } |
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236 | elsif ( $definition->{'supertype'} eq 'constraint' ) { |
237 | push @{ $tables{ $table_name }{'constraints'} }, $definition; |
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238 | } |
b3384294 |
239 | elsif ( $definition->{'supertype'} eq 'index' ) { |
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240 | push @{ $tables{ $table_name }{'indices'} }, $definition; |
241 | } |
242 | } |
243 | |
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244 | for my $option ( @{ $item[8] } ) { |
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245 | $tables{ $table_name }{'table_options(s?)'}{ $option->{'type'} } = |
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246 | $option; |
247 | } |
248 | |
249 | 1; |
250 | } |
251 | |
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252 | create : CREATE unique(?) /(index|key)/i index_name /on/i table_id using_method(?) '(' field_name(s /,/) ')' where_predicate(?) ';' |
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253 | { |
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254 | my $table_info = $item{'table_id'}; |
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255 | my $schema_name = $table_info->{'schema_name'}; |
256 | my $table_name = $table_info->{'table_name'}; |
257 | push @{ $tables{ $table_name }{'indices'} }, |
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258 | { |
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259 | name => $item{'index_name'}, |
260 | supertype => $item{'unique'}[0] ? 'constraint' : 'index', |
261 | type => $item{'unique'}[0] ? 'unique' : 'normal', |
262 | fields => $item[9], |
263 | method => $item{'using_method'}[0], |
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264 | } |
265 | ; |
266 | } |
267 | |
330e4686 |
268 | create : CREATE or_replace(?) temporary(?) VIEW view_id view_fields(?) /AS/i view_target ';' |
269 | { |
270 | push @views, { |
271 | schema_name => $item{view_id}{schema_name}, |
272 | view_name => $item{view_id}{view_name}, |
273 | sql => $item{view_target}, |
274 | fields => $item[6], |
275 | is_temporary => $item[3][0], |
276 | } |
277 | } |
278 | |
0012a163 |
279 | # |
211e2e90 |
280 | # Create anything else (e.g., domain, etc.) |
0012a163 |
281 | # |
211e2e90 |
282 | create : CREATE WORD /[^;]+/ ';' |
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283 | { @table_comments = (); } |
0012a163 |
284 | |
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285 | using_method : /using/i WORD { $item[2] } |
286 | |
287 | where_predicate : /where/i /[^;]+/ |
288 | |
289 | create_definition : field |
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290 | | table_constraint |
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291 | | <error> |
292 | |
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293 | comment : /^\s*(?:#|-{2})(.*)\n/ |
294 | { |
295 | my $comment = $item[1]; |
296 | $comment =~ s/^\s*(#|-*)\s*//; |
297 | $comment =~ s/\s*$//; |
ac397a49 |
298 | $return = $comment; |
299 | push @table_comments, $comment; |
300 | } |
301 | |
330e4686 |
302 | comment_on_table : /comment/i /on/i /table/i table_id /is/i comment_phrase ';' |
ac397a49 |
303 | { |
330e4686 |
304 | my $table_info = $item{'table_id'}; |
a20abbda |
305 | my $schema_name = $table_info->{'schema_name'}; |
306 | my $table_name = $table_info->{'table_name'}; |
307 | push @{ $tables{ $table_name }{'comments'} }, $item{'comment_phrase'}; |
ac397a49 |
308 | } |
309 | |
310 | comment_on_column : /comment/i /on/i /column/i column_name /is/i comment_phrase ';' |
311 | { |
312 | my $table_name = $item[4]->{'table'}; |
313 | my $field_name = $item[4]->{'field'}; |
e1fa2c52 |
314 | if ($tables{ $table_name }{'fields'}{ $field_name } ) { |
315 | push @{ $tables{ $table_name }{'fields'}{ $field_name }{'comments'} }, |
316 | $item{'comment_phrase'}; |
317 | } |
318 | else { |
319 | die "No such column as $table_name.$field_name"; |
320 | } |
ac397a49 |
321 | } |
322 | |
e4a9818d |
323 | comment_on_other : /comment/i /on/i /\w+/ /\w+/ /is/i comment_phrase ';' |
324 | { |
325 | push(@table_comments, $item{'comment_phrase'}); |
326 | } |
327 | |
328 | # [added by cjm 20041019] |
329 | # [TODO: other comment-on types] |
330 | # for now we just have a general mechanism for handling other |
331 | # kinds of comments than table/column; I'm not sure of the best |
332 | # way to incorporate these into the datamodel |
333 | # |
334 | # this is the exhaustive list of types of comment: |
335 | #COMMENT ON DATABASE my_database IS 'Development Database'; |
336 | #COMMENT ON INDEX my_index IS 'Enforces uniqueness on employee id'; |
337 | #COMMENT ON RULE my_rule IS 'Logs UPDATES of employee records'; |
338 | #COMMENT ON SEQUENCE my_sequence IS 'Used to generate primary keys'; |
339 | #COMMENT ON TABLE my_table IS 'Employee Information'; |
340 | #COMMENT ON TYPE my_type IS 'Complex Number support'; |
341 | #COMMENT ON VIEW my_view IS 'View of departmental costs'; |
342 | #COMMENT ON COLUMN my_table.my_field IS 'Employee ID number'; |
343 | #COMMENT ON TRIGGER my_trigger ON my_table IS 'Used for R.I.'; |
344 | # |
345 | # this is tested by test 08 |
346 | |
ac397a49 |
347 | column_name : NAME '.' NAME |
348 | { $return = { table => $item[1], field => $item[3] } } |
349 | |
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350 | comment_phrase : /null/i |
351 | { $return = 'NULL' } |
352 | |
353 | comment_phrase : /'/ comment_phrase_unquoted(s) /'/ |
354 | { my $phrase = join(' ', @{ $item[2] }); |
355 | $return = $phrase} |
356 | |
357 | # [cjm TODO: double-single quotes in a comment_phrase] |
358 | comment_phrase_unquoted : /[^\']*/ |
359 | { $return = $item[1] } |
360 | |
361 | |
362 | xxxcomment_phrase : /'.*?'|NULL/ |
ac397a49 |
363 | { |
8e9e79dc |
364 | my $val = $item[1] || ''; |
ac397a49 |
365 | $val =~ s/^'|'$//g; |
366 | $return = $val; |
367 | } |
368 | |
a82fa2cb |
369 | field : field_comment(s?) field_name data_type field_meta(s?) field_comment(s?) |
4422e22a |
370 | { |
3022f45b |
371 | my ( $default, @constraints, $is_pk ); |
00ef67ea |
372 | my $is_nullable = 1; |
41fc9cb3 |
373 | for my $meta ( @{ $item[4] } ) { |
82968eb9 |
374 | if ( $meta->{'type'} eq 'default' ) { |
375 | $default = $meta; |
376 | next; |
377 | } |
378 | elsif ( $meta->{'type'} eq 'not_null' ) { |
00ef67ea |
379 | $is_nullable = 0; |
82968eb9 |
380 | } |
381 | elsif ( $meta->{'type'} eq 'primary_key' ) { |
382 | $is_pk = 1; |
383 | } |
4422e22a |
384 | |
82968eb9 |
385 | push @constraints, $meta if $meta->{'supertype'} eq 'constraint'; |
386 | } |
0efb6e1b |
387 | |
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388 | my @comments = ( @{ $item[1] }, @{ $item[5] } ); |
389 | |
0a7fc605 |
390 | $return = { |
b3384294 |
391 | supertype => 'field', |
7eac5e12 |
392 | name => $item{'field_name'}, |
393 | data_type => $item{'data_type'}{'type'}, |
394 | size => $item{'data_type'}{'size'}, |
00ef67ea |
395 | is_nullable => $is_nullable, |
7eac5e12 |
396 | default => $default->{'value'}, |
397 | constraints => [ @constraints ], |
398 | comments => [ @comments ], |
399 | is_primary_key => $is_pk || 0, |
400 | is_auto_increment => $item{'data_type'}{'is_auto_increment'}, |
4422e22a |
401 | } |
402 | } |
403 | | <error> |
404 | |
a82fa2cb |
405 | field_comment : /^\s*(?:#|-{2})(.*)\n/ |
406 | { |
407 | my $comment = $item[1]; |
408 | $comment =~ s/^\s*(#|-*)\s*//; |
409 | $comment =~ s/\s*$//; |
410 | $return = $comment; |
411 | } |
412 | |
0efb6e1b |
413 | field_meta : default_val |
82968eb9 |
414 | | column_constraint |
4422e22a |
415 | |
330e4686 |
416 | view_fields : '(' field_name(s /,/) ')' |
417 | { $return = join (',', @{$item[2]} ) } |
418 | |
0efb6e1b |
419 | column_constraint : constraint_name(?) column_constraint_type deferrable(?) deferred(?) |
420 | { |
421 | my $desc = $item{'column_constraint_type'}; |
422 | my $type = $desc->{'type'}; |
423 | my $fields = $desc->{'fields'} || []; |
424 | my $expression = $desc->{'expression'} || ''; |
425 | |
426 | $return = { |
82968eb9 |
427 | supertype => 'constraint', |
0efb6e1b |
428 | name => $item{'constraint_name'}[0] || '', |
429 | type => $type, |
430 | expression => $type eq 'check' ? $expression : '', |
f04713db |
431 | deferrable => $item{'deferrable'}, |
0efb6e1b |
432 | deferred => $item{'deferred'}, |
433 | reference_table => $desc->{'reference_table'}, |
434 | reference_fields => $desc->{'reference_fields'}, |
435 | match_type => $desc->{'match_type'}, |
100684f3 |
436 | on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'}, |
437 | on_update => $desc->{'on_update'} || $desc->{'on_update_do'}, |
4422e22a |
438 | } |
439 | } |
440 | |
0efb6e1b |
441 | constraint_name : /constraint/i name_with_opt_quotes { $item[2] } |
442 | |
443 | column_constraint_type : /not null/i { $return = { type => 'not_null' } } |
444 | | |
f04713db |
445 | /null/i |
0efb6e1b |
446 | { $return = { type => 'null' } } |
447 | | |
f04713db |
448 | /unique/i |
0efb6e1b |
449 | { $return = { type => 'unique' } } |
450 | | |
451 | /primary key/i |
452 | { $return = { type => 'primary_key' } } |
453 | | |
454 | /check/i '(' /[^)]+/ ')' |
b3384294 |
455 | { $return = { type => 'check', expression => $item[3] } } |
0efb6e1b |
456 | | |
330e4686 |
457 | /references/i table_id parens_word_list(?) match_type(?) key_action(s?) |
0efb6e1b |
458 | { |
330e4686 |
459 | my $table_info = $item{'table_id'}; |
a20abbda |
460 | my $schema_name = $table_info->{'schema_name'}; |
461 | my $table_name = $table_info->{'table_name'}; |
3022f45b |
462 | my ( $on_delete, $on_update ); |
463 | for my $action ( @{ $item[5] || [] } ) { |
464 | $on_delete = $action->{'action'} if $action->{'type'} eq 'delete'; |
465 | $on_update = $action->{'action'} if $action->{'type'} eq 'update'; |
466 | } |
467 | |
0efb6e1b |
468 | $return = { |
469 | type => 'foreign_key', |
a20abbda |
470 | reference_table => $table_name, |
0138f7bb |
471 | reference_fields => $item[3][0], |
0efb6e1b |
472 | match_type => $item[4][0], |
100684f3 |
473 | on_delete => $on_delete, |
474 | on_update => $on_update, |
ba1a1626 |
475 | } |
4422e22a |
476 | } |
477 | |
330e4686 |
478 | table_id : schema_qualification(?) name_with_opt_quotes { |
479 | $return = { schema_name => $item[1][0], table_name => $item[2] } |
a20abbda |
480 | } |
481 | |
330e4686 |
482 | view_id : schema_qualification(?) name_with_opt_quotes { |
483 | $return = { schema_name => $item[1][0], view_name => $item[2] } |
484 | } |
485 | |
486 | view_target : /select|with/i /[^;]+/ { |
487 | $return = "$item[1] $item[2]"; |
488 | } |
489 | |
490 | # SELECT views _may_ support outer parens, and we used to produce |
491 | # such sql, although non-standard. Use ugly lookeahead to parse |
492 | view_target : '(' /select/i / [^;]+ (?= \) ) /x ')' { |
493 | $return = "$item[2] $item[3]" |
494 | } |
495 | |
496 | view_target_spec : |
497 | |
498 | schema_qualification : name_with_opt_quotes '.' |
4422e22a |
499 | |
34338cb2 |
500 | schema_name : name_with_opt_quotes |
501 | |
0efb6e1b |
502 | field_name : name_with_opt_quotes |
4422e22a |
503 | |
0012a163 |
504 | name_with_opt_quotes : double_quote(?) NAME double_quote(?) { $item[2] } |
4422e22a |
505 | |
0efb6e1b |
506 | double_quote: /"/ |
4422e22a |
507 | |
d4056aa7 |
508 | index_name : name_with_opt_quotes |
4422e22a |
509 | |
0efb6e1b |
510 | data_type : pg_data_type parens_value_list(?) |
4422e22a |
511 | { |
3022f45b |
512 | my $data_type = $item[1]; |
ba1a1626 |
513 | |
0efb6e1b |
514 | # |
515 | # We can deduce some sizes from the data type's name. |
516 | # |
44ffdb73 |
517 | if ( my $size = $item[2][0] ) { |
518 | $data_type->{'size'} = $size; |
519 | } |
4422e22a |
520 | |
3022f45b |
521 | $return = $data_type; |
4422e22a |
522 | } |
523 | |
0efb6e1b |
524 | pg_data_type : |
50840472 |
525 | /(bigint|int8)/i |
3022f45b |
526 | { |
527 | $return = { |
50840472 |
528 | type => 'integer', |
b8ea6076 |
529 | size => 20, |
3022f45b |
530 | }; |
531 | } |
0efb6e1b |
532 | | |
1bbd4a2b |
533 | /(smallint|int2)/i |
3022f45b |
534 | { |
535 | $return = { |
536 | type => 'integer', |
b8ea6076 |
537 | size => 5, |
3022f45b |
538 | }; |
539 | } |
0efb6e1b |
540 | | |
c4c363bb |
541 | /interval/i |
542 | { |
543 | $return = { type => 'interval' }; |
544 | } |
545 | | |
50840472 |
546 | /(integer|int4?)/i # interval must come before this |
3022f45b |
547 | { |
548 | $return = { |
549 | type => 'integer', |
b8ea6076 |
550 | size => 10, |
3022f45b |
551 | }; |
552 | } |
50840472 |
553 | | |
554 | /(real|float4)/i |
555 | { |
556 | $return = { |
557 | type => 'real', |
b8ea6076 |
558 | size => 10, |
50840472 |
559 | }; |
560 | } |
0efb6e1b |
561 | | |
1bbd4a2b |
562 | /(double precision|float8?)/i |
3022f45b |
563 | { |
564 | $return = { |
565 | type => 'float', |
b8ea6076 |
566 | size => 20, |
3022f45b |
567 | }; |
568 | } |
0efb6e1b |
569 | | |
50840472 |
570 | /(bigserial|serial8)/i |
3022f45b |
571 | { |
50840472 |
572 | $return = { |
7eac5e12 |
573 | type => 'integer', |
b8ea6076 |
574 | size => 20, |
7eac5e12 |
575 | is_auto_increment => 1, |
3022f45b |
576 | }; |
577 | } |
0efb6e1b |
578 | | |
1bbd4a2b |
579 | /serial4?/i |
3022f45b |
580 | { |
581 | $return = { |
7eac5e12 |
582 | type => 'integer', |
b8ea6076 |
583 | size => 11, |
7eac5e12 |
584 | is_auto_increment => 1, |
3022f45b |
585 | }; |
586 | } |
0efb6e1b |
587 | | |
1bbd4a2b |
588 | /(bit varying|varbit)/i |
3022f45b |
589 | { |
590 | $return = { type => 'varbit' }; |
591 | } |
0efb6e1b |
592 | | |
1bbd4a2b |
593 | /character varying/i |
3022f45b |
594 | { |
595 | $return = { type => 'varchar' }; |
596 | } |
0efb6e1b |
597 | | |
1bbd4a2b |
598 | /char(acter)?/i |
3022f45b |
599 | { |
600 | $return = { type => 'char' }; |
601 | } |
0efb6e1b |
602 | | |
1bbd4a2b |
603 | /bool(ean)?/i |
3022f45b |
604 | { |
605 | $return = { type => 'boolean' }; |
606 | } |
0efb6e1b |
607 | | |
1bbd4a2b |
608 | /bytea/i |
3022f45b |
609 | { |
82968eb9 |
610 | $return = { type => 'bytea' }; |
3022f45b |
611 | } |
0efb6e1b |
612 | | |
b0f2faf8 |
613 | /(timestamptz|timestamp)(?:\(\d\))?( with(out)? time zone)?/i |
3022f45b |
614 | { |
615 | $return = { type => 'timestamp' }; |
616 | } |
0efb6e1b |
617 | | |
38a6a4f9 |
618 | /text/i |
619 | { |
620 | $return = { |
621 | type => 'text', |
622 | size => 64_000, |
623 | }; |
624 | } |
625 | | |
c4c363bb |
626 | /(bit|box|cidr|circle|date|inet|line|lseg|macaddr|money|numeric|decimal|path|point|polygon|timetz|time|varchar)/i |
3022f45b |
627 | { |
628 | $return = { type => $item[1] }; |
629 | } |
0efb6e1b |
630 | |
4422e22a |
631 | parens_value_list : '(' VALUE(s /,/) ')' |
632 | { $item[2] } |
633 | |
efd0c9ec |
634 | |
635 | parens_word_list : '(' name_with_opt_quotes(s /,/) ')' |
0efb6e1b |
636 | { $item[2] } |
4422e22a |
637 | |
0efb6e1b |
638 | field_size : '(' num_range ')' { $item{'num_range'} } |
4422e22a |
639 | |
0efb6e1b |
640 | num_range : DIGITS ',' DIGITS |
4422e22a |
641 | { $return = $item[1].','.$item[3] } |
642 | | DIGITS |
643 | { $return = $item[1] } |
644 | |
f2f71b8e |
645 | table_constraint : comment(s?) constraint_name(?) table_constraint_type deferrable(?) deferred(?) comment(s?) |
0efb6e1b |
646 | { |
647 | my $desc = $item{'table_constraint_type'}; |
648 | my $type = $desc->{'type'}; |
649 | my $fields = $desc->{'fields'}; |
650 | my $expression = $desc->{'expression'}; |
f2f71b8e |
651 | my @comments = ( @{ $item[1] }, @{ $item[-1] } ); |
0efb6e1b |
652 | |
653 | $return = { |
d4056aa7 |
654 | name => $item[2][0] || '', |
b3384294 |
655 | supertype => 'constraint', |
656 | type => $type, |
0efb6e1b |
657 | fields => $type ne 'check' ? $fields : [], |
658 | expression => $type eq 'check' ? $expression : '', |
f04713db |
659 | deferrable => $item{'deferrable'}, |
0efb6e1b |
660 | deferred => $item{'deferred'}, |
661 | reference_table => $desc->{'reference_table'}, |
662 | reference_fields => $desc->{'reference_fields'}, |
840447a5 |
663 | match_type => $desc->{'match_type'}, |
100684f3 |
664 | on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'}, |
665 | on_update => $desc->{'on_update'} || $desc->{'on_update_do'}, |
f2f71b8e |
666 | comments => [ @comments ], |
0efb6e1b |
667 | } |
668 | } |
4422e22a |
669 | |
0efb6e1b |
670 | table_constraint_type : /primary key/i '(' name_with_opt_quotes(s /,/) ')' |
671 | { |
672 | $return = { |
673 | type => 'primary_key', |
674 | fields => $item[3], |
675 | } |
676 | } |
677 | | |
678 | /unique/i '(' name_with_opt_quotes(s /,/) ')' |
679 | { |
680 | $return = { |
681 | type => 'unique', |
682 | fields => $item[3], |
683 | } |
684 | } |
685 | | |
b3384294 |
686 | /check/i '(' /[^)]+/ ')' |
0efb6e1b |
687 | { |
688 | $return = { |
689 | type => 'check', |
690 | expression => $item[3], |
691 | } |
692 | } |
693 | | |
330e4686 |
694 | /foreign key/i '(' name_with_opt_quotes(s /,/) ')' /references/i table_id parens_word_list(?) match_type(?) key_action(s?) |
0efb6e1b |
695 | { |
3022f45b |
696 | my ( $on_delete, $on_update ); |
697 | for my $action ( @{ $item[9] || [] } ) { |
698 | $on_delete = $action->{'action'} if $action->{'type'} eq 'delete'; |
699 | $on_update = $action->{'action'} if $action->{'type'} eq 'update'; |
700 | } |
701 | |
0efb6e1b |
702 | $return = { |
b3384294 |
703 | supertype => 'constraint', |
0efb6e1b |
704 | type => 'foreign_key', |
705 | fields => $item[3], |
a20abbda |
706 | reference_table => $item[6]->{'table_name'}, |
0efb6e1b |
707 | reference_fields => $item[7][0], |
708 | match_type => $item[8][0], |
100684f3 |
709 | on_delete => $on_delete || '', |
710 | on_update => $on_update || '', |
0efb6e1b |
711 | } |
712 | } |
713 | |
99f3fab6 |
714 | deferrable : not(?) /deferrable/i |
0efb6e1b |
715 | { |
716 | $return = ( $item[1] =~ /not/i ) ? 0 : 1; |
717 | } |
4422e22a |
718 | |
0efb6e1b |
719 | deferred : /initially/i /(deferred|immediate)/i { $item[2] } |
4422e22a |
720 | |
840447a5 |
721 | match_type : /match/i /partial|full|simple/i { $item[2] } |
0efb6e1b |
722 | |
3022f45b |
723 | key_action : key_delete |
724 | | |
725 | key_update |
0efb6e1b |
726 | |
3022f45b |
727 | key_delete : /on delete/i key_mutation |
728 | { |
8c12c406 |
729 | $return = { |
3022f45b |
730 | type => 'delete', |
731 | action => $item[2], |
732 | }; |
733 | } |
734 | |
735 | key_update : /on update/i key_mutation |
736 | { |
8c12c406 |
737 | $return = { |
3022f45b |
738 | type => 'update', |
739 | action => $item[2], |
740 | }; |
741 | } |
742 | |
743 | key_mutation : /no action/i { $return = 'no_action' } |
744 | | |
745 | /restrict/i { $return = 'restrict' } |
746 | | |
747 | /cascade/i { $return = 'cascade' } |
748 | | |
38a6a4f9 |
749 | /set null/i { $return = 'set null' } |
3022f45b |
750 | | |
38a6a4f9 |
751 | /set default/i { $return = 'set default' } |
0efb6e1b |
752 | |
330e4686 |
753 | alter : alter_table table_id add_column field ';' |
00ef67ea |
754 | { |
755 | my $field_def = $item[4]; |
a20abbda |
756 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $field_def->{'name'} } = { |
00ef67ea |
757 | %$field_def, order => $field_order++ |
758 | }; |
759 | 1; |
760 | } |
761 | |
330e4686 |
762 | alter : alter_table table_id ADD table_constraint ';' |
0012a163 |
763 | { |
a20abbda |
764 | my $table_name = $item[2]->{'table_name'}; |
0012a163 |
765 | my $constraint = $item[4]; |
0012a163 |
766 | push @{ $tables{ $table_name }{'constraints'} }, $constraint; |
00ef67ea |
767 | 1; |
0012a163 |
768 | } |
769 | |
330e4686 |
770 | alter : alter_table table_id drop_column NAME restrict_or_cascade(?) ';' |
00ef67ea |
771 | { |
a20abbda |
772 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'drop'} = 1; |
00ef67ea |
773 | 1; |
774 | } |
0012a163 |
775 | |
330e4686 |
776 | alter : alter_table table_id alter_column NAME alter_default_val ';' |
00ef67ea |
777 | { |
a20abbda |
778 | $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'default'} = |
00ef67ea |
779 | $item[5]->{'value'}; |
780 | 1; |
781 | } |
782 | |
783 | # |
784 | # These will just parse for now but won't affect the structure. - ky |
785 | # |
330e4686 |
786 | alter : alter_table table_id /rename/i /to/i NAME ';' |
00ef67ea |
787 | { 1 } |
788 | |
330e4686 |
789 | alter : alter_table table_id alter_column NAME SET /statistics/i INTEGER ';' |
00ef67ea |
790 | { 1 } |
791 | |
330e4686 |
792 | alter : alter_table table_id alter_column NAME SET /storage/i storage_type ';' |
00ef67ea |
793 | { 1 } |
794 | |
330e4686 |
795 | alter : alter_table table_id rename_column NAME /to/i NAME ';' |
00ef67ea |
796 | { 1 } |
797 | |
330e4686 |
798 | alter : alter_table table_id DROP /constraint/i NAME restrict_or_cascade ';' |
00ef67ea |
799 | { 1 } |
800 | |
330e4686 |
801 | alter : alter_table table_id /owner/i /to/i NAME ';' |
00ef67ea |
802 | { 1 } |
803 | |
6f28e7ac |
804 | alter : alter_sequence NAME /owned/i /by/i column_name ';' |
805 | { 1 } |
806 | |
00ef67ea |
807 | storage_type : /(plain|external|extended|main)/i |
808 | |
330e4686 |
809 | temporary : /temp(orary)?\\b/i |
810 | { |
811 | 1; |
812 | } |
3e98f7d9 |
813 | |
330e4686 |
814 | or_replace : /or replace/i |
3e98f7d9 |
815 | |
00ef67ea |
816 | alter_default_val : SET default_val |
817 | { |
818 | $return = { value => $item[2]->{'value'} } |
819 | } |
820 | | DROP DEFAULT |
821 | { |
822 | $return = { value => undef } |
823 | } |
824 | |
825 | # |
826 | # This is a little tricky to get right, at least WRT to making the |
827 | # tests pass. The problem is that the constraints are stored just as |
828 | # a list (no name access), and the tests expect the constraints in a |
829 | # particular order. I'm going to leave the rule but disable the code |
830 | # for now. - ky |
831 | # |
330e4686 |
832 | alter : alter_table table_id alter_column NAME alter_nullable ';' |
00ef67ea |
833 | { |
a20abbda |
834 | # my $table_name = $item[2]->{'table_name'}; |
00ef67ea |
835 | # my $field_name = $item[4]; |
836 | # my $is_nullable = $item[5]->{'is_nullable'}; |
837 | # |
838 | # $tables{ $table_name }{'fields'}{ $field_name }{'is_nullable'} = |
839 | # $is_nullable; |
840 | # |
841 | # if ( $is_nullable ) { |
842 | # 1; |
843 | # push @{ $tables{ $table_name }{'constraints'} }, { |
844 | # type => 'not_null', |
845 | # fields => [ $field_name ], |
846 | # }; |
847 | # } |
848 | # else { |
849 | # for my $i ( |
850 | # 0 .. $#{ $tables{ $table_name }{'constraints'} || [] } |
851 | # ) { |
852 | # my $c = $tables{ $table_name }{'constraints'}[ $i ] or next; |
853 | # my $fields = join( '', @{ $c->{'fields'} || [] } ) or next; |
854 | # if ( $c->{'type'} eq 'not_null' && $fields eq $field_name ) { |
855 | # delete $tables{ $table_name }{'constraints'}[ $i ]; |
856 | # last; |
857 | # } |
858 | # } |
859 | # } |
860 | |
861 | 1; |
862 | } |
863 | |
864 | alter_nullable : SET not_null |
865 | { |
866 | $return = { is_nullable => 0 } |
867 | } |
868 | | DROP not_null |
869 | { |
870 | $return = { is_nullable => 1 } |
871 | } |
872 | |
873 | not_null : /not/i /null/i |
874 | |
99f3fab6 |
875 | not : /not/i |
876 | |
00ef67ea |
877 | add_column : ADD COLUMN(?) |
878 | |
879 | alter_table : ALTER TABLE ONLY(?) |
880 | |
6f28e7ac |
881 | alter_sequence : ALTER SEQUENCE |
882 | |
00ef67ea |
883 | drop_column : DROP COLUMN(?) |
884 | |
885 | alter_column : ALTER COLUMN(?) |
886 | |
887 | rename_column : /rename/i COLUMN(?) |
888 | |
889 | restrict_or_cascade : /restrict/i | |
890 | /cascade/i |
891 | |
34338cb2 |
892 | # Handle functions that can be called |
893 | select : SELECT select_function ';' |
894 | { 1 } |
895 | |
896 | # Read the setval function but don't do anything with it because this parser |
897 | # isn't handling sequences |
898 | select_function : schema_qualification(?) /setval/i '(' VALUE /,/ VALUE /,/ /(true|false)/i ')' |
899 | { 1 } |
900 | |
901 | # Skipping all COPY commands |
902 | copy : COPY WORD /[^;]+/ ';' { 1 } |
903 | { 1 } |
904 | |
905 | # The "\." allows reading in from STDIN but this isn't needed for schema |
906 | # creation, so it is skipped. |
907 | readin_symbol : '\.' |
908 | {1} |
909 | |
00ef67ea |
910 | # |
911 | # End basically useless stuff. - ky |
912 | # |
0012a163 |
913 | |
211e2e90 |
914 | create_table : CREATE TABLE |
0efb6e1b |
915 | |
211e2e90 |
916 | create_index : CREATE /index/i |
4422e22a |
917 | |
37e74f25 |
918 | default_val : DEFAULT /(\d+|'[^']*'|\w+\(.*\))|\w+/ |
4422e22a |
919 | { |
f04713db |
920 | my $val = defined $item[2] ? $item[2] : ''; |
921 | $val =~ s/^'|'$//g; |
0efb6e1b |
922 | $return = { |
82968eb9 |
923 | supertype => 'constraint', |
924 | type => 'default', |
0efb6e1b |
925 | value => $val, |
926 | } |
4422e22a |
927 | } |
f27085c9 |
928 | | /null/i |
929 | { |
930 | $return = { |
931 | supertype => 'constraint', |
932 | type => 'default', |
933 | value => 'NULL', |
934 | } |
935 | } |
4422e22a |
936 | |
4422e22a |
937 | name_with_opt_paren : NAME parens_value_list(s?) |
0efb6e1b |
938 | { $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] } |
4422e22a |
939 | |
940 | unique : /unique/i { 1 } |
941 | |
942 | key : /key/i | /index/i |
943 | |
0efb6e1b |
944 | table_option : /inherits/i '(' name_with_opt_quotes(s /,/) ')' |
4422e22a |
945 | { |
0efb6e1b |
946 | $return = { type => 'inherits', table_name => $item[3] } |
947 | } |
948 | | |
949 | /with(out)? oids/i |
950 | { |
951 | $return = { type => $item[1] =~ /out/i ? 'without_oids' : 'with_oids' } |
4422e22a |
952 | } |
953 | |
00ef67ea |
954 | ADD : /add/i |
955 | |
956 | ALTER : /alter/i |
957 | |
211e2e90 |
958 | CREATE : /create/i |
959 | |
00ef67ea |
960 | ONLY : /only/i |
961 | |
962 | DEFAULT : /default/i |
963 | |
964 | DROP : /drop/i |
965 | |
966 | COLUMN : /column/i |
967 | |
0d51cd9e |
968 | TABLE : /table/i |
969 | |
330e4686 |
970 | VIEW : /view/i |
971 | |
34338cb2 |
972 | SCHEMA : /schema/i |
973 | |
0efb6e1b |
974 | SEMICOLON : /\s*;\n?/ |
975 | |
6f28e7ac |
976 | SEQUENCE : /sequence/i |
977 | |
34338cb2 |
978 | SELECT : /select/i |
979 | |
980 | COPY : /copy/i |
981 | |
00ef67ea |
982 | INTEGER : /\d+/ |
983 | |
4422e22a |
984 | WORD : /\w+/ |
985 | |
986 | DIGITS : /\d+/ |
987 | |
988 | COMMA : ',' |
989 | |
00ef67ea |
990 | SET : /set/i |
991 | |
4422e22a |
992 | NAME : "`" /\w+/ "`" |
993 | { $item[2] } |
994 | | /\w+/ |
995 | { $item[1] } |
0012a163 |
996 | | /[\$\w]+/ |
997 | { $item[1] } |
4422e22a |
998 | |
999 | VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/ |
1000 | { $item[1] } |
1001 | | /'.*?'/ # XXX doesn't handle embedded quotes |
1002 | { $item[1] } |
f04713db |
1003 | | /null/i |
4422e22a |
1004 | { 'NULL' } |
1005 | |
1006 | !; |
1007 | |
1008 | # ------------------------------------------------------------------- |
1009 | sub parse { |
1010 | my ( $translator, $data ) = @_; |
9fa2a755 |
1011 | my $parser = Parse::RecDescent->new($GRAMMAR); |
4422e22a |
1012 | |
1013 | $::RD_TRACE = $translator->trace ? 1 : undef; |
1014 | $DEBUG = $translator->debug; |
1015 | |
1016 | unless (defined $parser) { |
1017 | return $translator->error("Error instantiating Parse::RecDescent ". |
1018 | "instance: Bad grammer"); |
1019 | } |
1020 | |
1021 | my $result = $parser->startrule($data); |
1022 | die "Parse failed.\n" unless defined $result; |
1023 | warn Dumper($result) if $DEBUG; |
82968eb9 |
1024 | |
1025 | my $schema = $translator->schema; |
1026 | my @tables = sort { |
330e4686 |
1027 | ( $result->{tables}{ $a }{'order'} || 0 ) <=> ( $result->{tables}{ $b }{'order'} || 0 ) |
1028 | } keys %{ $result->{tables} }; |
82968eb9 |
1029 | |
1030 | for my $table_name ( @tables ) { |
330e4686 |
1031 | my $tdata = $result->{tables}{ $table_name }; |
82968eb9 |
1032 | my $table = $schema->add_table( |
a20abbda |
1033 | #schema => $tdata->{'schema_name'}, |
1034 | name => $tdata->{'table_name'}, |
d7fcc1d6 |
1035 | ) or die "Couldn't create table '$table_name': " . $schema->error; |
82968eb9 |
1036 | |
3e98f7d9 |
1037 | $table->extra(temporary => 1) if $tdata->{'temporary'}; |
1038 | |
a82fa2cb |
1039 | $table->comments( $tdata->{'comments'} ); |
1040 | |
82968eb9 |
1041 | my @fields = sort { |
429f639c |
1042 | $tdata->{'fields'}{ $a }{'order'} |
82968eb9 |
1043 | <=> |
429f639c |
1044 | $tdata->{'fields'}{ $b }{'order'} |
82968eb9 |
1045 | } keys %{ $tdata->{'fields'} }; |
1046 | |
1047 | for my $fname ( @fields ) { |
1048 | my $fdata = $tdata->{'fields'}{ $fname }; |
00ef67ea |
1049 | next if $fdata->{'drop'}; |
82968eb9 |
1050 | my $field = $table->add_field( |
1051 | name => $fdata->{'name'}, |
1052 | data_type => $fdata->{'data_type'}, |
1053 | size => $fdata->{'size'}, |
1054 | default_value => $fdata->{'default'}, |
7eac5e12 |
1055 | is_auto_increment => $fdata->{'is_auto_increment'}, |
00ef67ea |
1056 | is_nullable => $fdata->{'is_nullable'}, |
a82fa2cb |
1057 | comments => $fdata->{'comments'}, |
82968eb9 |
1058 | ) or die $table->error; |
1059 | |
1060 | $table->primary_key( $field->name ) if $fdata->{'is_primary_key'}; |
1061 | |
1062 | for my $cdata ( @{ $fdata->{'constraints'} } ) { |
1063 | next unless $cdata->{'type'} eq 'foreign_key'; |
1064 | $cdata->{'fields'} ||= [ $field->name ]; |
1065 | push @{ $tdata->{'constraints'} }, $cdata; |
1066 | } |
1067 | } |
1068 | |
1069 | for my $idata ( @{ $tdata->{'indices'} || [] } ) { |
1070 | my $index = $table->add_index( |
1071 | name => $idata->{'name'}, |
1072 | type => uc $idata->{'type'}, |
1073 | fields => $idata->{'fields'}, |
3406fd5b |
1074 | ) or die $table->error . ' ' . $table->name; |
82968eb9 |
1075 | } |
1076 | |
1077 | for my $cdata ( @{ $tdata->{'constraints'} || [] } ) { |
1078 | my $constraint = $table->add_constraint( |
1079 | name => $cdata->{'name'}, |
1080 | type => $cdata->{'type'}, |
1081 | fields => $cdata->{'fields'}, |
1082 | reference_table => $cdata->{'reference_table'}, |
1083 | reference_fields => $cdata->{'reference_fields'}, |
1084 | match_type => $cdata->{'match_type'} || '', |
100684f3 |
1085 | on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'}, |
1086 | on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'}, |
b3384294 |
1087 | expression => $cdata->{'expression'}, |
1088 | ) or die "Can't add constraint of type '" . |
1089 | $cdata->{'type'} . "' to table '" . $table->name . |
1090 | "': " . $table->error; |
82968eb9 |
1091 | } |
1092 | } |
1093 | |
330e4686 |
1094 | for my $vinfo (@{$result->{views}}) { |
1095 | my $sql = $vinfo->{sql}; |
1096 | $sql =~ s/\A\s+|\s+\z//g; |
1097 | my $view = $schema->add_view ( |
1098 | name => $vinfo->{view_name}, |
1099 | sql => $sql, |
1100 | fields => $vinfo->{fields}, |
1101 | ); |
1102 | |
1103 | $view->extra ( temporary => 1 ) if $vinfo->{is_temporary}; |
1104 | } |
1105 | |
f62bd16c |
1106 | return 1; |
4422e22a |
1107 | } |
1108 | |
1109 | 1; |
1110 | |
82968eb9 |
1111 | # ------------------------------------------------------------------- |
1112 | # Rescue the drowning and tie your shoestrings. |
1113 | # Henry David Thoreau |
1114 | # ------------------------------------------------------------------- |
4422e22a |
1115 | |
1116 | =pod |
1117 | |
0efb6e1b |
1118 | =head1 AUTHORS |
4422e22a |
1119 | |
11ad2df9 |
1120 | Ken Y. Clark E<lt>kclark@cpan.orgE<gt>, |
b8ea6076 |
1121 | Allen Day E<lt>allenday@ucla.eduE<gt>. |
4422e22a |
1122 | |
1123 | =head1 SEE ALSO |
1124 | |
1125 | perl(1), Parse::RecDescent. |
1126 | |
1127 | =cut |