1 package SQL::Translator::Parser::PostgreSQL;
3 # -------------------------------------------------------------------
4 # Copyright (C) 2002-2009 SQLFairy Authors
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.
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.
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
17 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19 # -------------------------------------------------------------------
23 SQL::Translator::Parser::PostgreSQL - parser for PostgreSQL
28 use SQL::Translator::Parser::PostgreSQL;
30 my $translator = SQL::Translator->new;
31 $translator->parser("SQL::Translator::Parser::PostgreSQL");
35 The grammar was started from the MySQL parsers. Here is the description
39 (http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createtable.html)
41 CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name (
42 { column_name data_type [ DEFAULT default_expr ]
43 [ column_constraint [, ... ] ]
44 | table_constraint } [, ... ]
46 [ INHERITS ( parent_table [, ... ] ) ]
47 [ WITH OIDS | WITHOUT OIDS ]
49 where column_constraint is:
51 [ CONSTRAINT constraint_name ]
52 { NOT NULL | NULL | UNIQUE | PRIMARY KEY |
54 REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ]
55 [ ON DELETE action ] [ ON UPDATE action ] }
56 [ DEFERRABLE | NOT DEFERRABLE ]
57 [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
59 and table_constraint is:
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 ]
73 (http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createindex.html)
75 CREATE [ UNIQUE ] INDEX index_name ON table
76 [ USING acc_method ] ( column [ ops_name ] [, ...] )
78 CREATE [ UNIQUE ] INDEX index_name ON table
79 [ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] )
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
95 ADD table_constraint_definition
96 ALTER TABLE [ ONLY ] table
97 DROP CONSTRAINT constraint { RESTRICT | CASCADE }
103 CREATE [ OR REPLACE ] VIEW view [ ( column name list ) ] AS SELECT query
108 use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
110 $DEBUG = 0 unless defined $DEBUG;
113 use Parse::RecDescent;
115 use base qw(Exporter);
117 @EXPORT_OK = qw(parse);
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.
124 my $parser; # should we do this? There's no programmic way to
125 # change the grammar, so I think this is safe.
129 { my ( %tables, $table_order, $field_order, @table_comments) }
132 # The "eofile" rule makes the parser fail if any "statement" rule
133 # fails. Otherwise, the first successful match by a "statement"
134 # won't cause the failure needed to know that the parse, as a whole,
137 startrule : statement(s) eofile { \%tables }
160 connect : /^\s*\\\connect.*\n/
162 set : /set/i /[^;]*/ ';'
164 revoke : /revoke/i WORD(s /,/) /on/i TABLE(?) table_name /from/i name_with_opt_quotes(s /,/) ';'
166 my $table_info = $item{'table_name'};
167 my $schema_name = $table_info->{'schema_name'};
168 my $table_name = $table_info->{'table_name'};
169 push @{ $tables{ $table_name }{'permissions'} }, {
176 revoke : /revoke/i WORD(s /,/) /on/i SCHEMA(?) schema_name /from/i name_with_opt_quotes(s /,/) ';'
179 grant : /grant/i WORD(s /,/) /on/i TABLE(?) table_name /to/i name_with_opt_quotes(s /,/) ';'
181 my $table_info = $item{'table_name'};
182 my $schema_name = $table_info->{'schema_name'};
183 my $table_name = $table_info->{'table_name'};
184 push @{ $tables{ $table_name }{'permissions'} }, {
191 grant : /grant/i WORD(s /,/) /on/i SCHEMA(?) schema_name /to/i name_with_opt_quotes(s /,/) ';'
194 drop : /drop/i /[^;]*/ ';'
197 /'(\\.|''|[^\\\'])*'/
199 nonstring : /[^;\'"]+/
201 statement_body : string | nonstring
203 insert : /insert/i statement_body(s?) ';'
205 update : /update/i statement_body(s?) ';'
210 create : CREATE temporary_table(?) TABLE table_name '(' create_definition(s? /,/) ')' table_option(s?) ';'
212 my $table_info = $item{'table_name'};
213 my $schema_name = $table_info->{'schema_name'};
214 my $table_name = $table_info->{'table_name'};
215 $tables{ $table_name }{'order'} = ++$table_order;
216 $tables{ $table_name }{'schema_name'} = $schema_name;
217 $tables{ $table_name }{'table_name'} = $table_name;
219 $tables{ $table_name }{'temporary'} = $item[2][0];
221 if ( @table_comments ) {
222 $tables{ $table_name }{'comments'} = [ @table_comments ];
223 @table_comments = ();
227 for my $definition ( @{ $item[6] } ) {
228 if ( $definition->{'supertype'} eq 'field' ) {
229 my $field_name = $definition->{'name'};
230 $tables{ $table_name }{'fields'}{ $field_name } =
231 { %$definition, order => $field_order++ };
233 for my $constraint ( @{ $definition->{'constraints'} || [] } ) {
234 $constraint->{'fields'} = [ $field_name ];
235 push @{ $tables{ $table_name }{'constraints'} },
239 elsif ( $definition->{'supertype'} eq 'constraint' ) {
240 push @{ $tables{ $table_name }{'constraints'} }, $definition;
242 elsif ( $definition->{'supertype'} eq 'index' ) {
243 push @{ $tables{ $table_name }{'indices'} }, $definition;
247 for my $option ( @{ $item[8] } ) {
248 $tables{ $table_name }{'table_options(s?)'}{ $option->{'type'} } =
255 create : CREATE unique(?) /(index|key)/i index_name /on/i table_name using_method(?) '(' field_name(s /,/) ')' where_predicate(?) ';'
257 my $table_info = $item{'table_name'};
258 my $schema_name = $table_info->{'schema_name'};
259 my $table_name = $table_info->{'table_name'};
260 push @{ $tables{ $table_name }{'indices'} },
262 name => $item{'index_name'},
263 supertype => $item{'unique'}[0] ? 'constraint' : 'index',
264 type => $item{'unique'}[0] ? 'unique' : 'normal',
266 method => $item{'using_method'}[0],
273 # Create anything else (e.g., domain, etc.)
275 create : CREATE WORD /[^;]+/ ';'
276 { @table_comments = (); }
278 using_method : /using/i WORD { $item[2] }
280 where_predicate : /where/i /[^;]+/
282 create_definition : field
286 comment : /^\s*(?:#|-{2})(.*)\n/
288 my $comment = $item[1];
289 $comment =~ s/^\s*(#|-*)\s*//;
290 $comment =~ s/\s*$//;
292 push @table_comments, $comment;
295 comment_on_table : /comment/i /on/i /table/i table_name /is/i comment_phrase ';'
297 my $table_info = $item{'table_name'};
298 my $schema_name = $table_info->{'schema_name'};
299 my $table_name = $table_info->{'table_name'};
300 push @{ $tables{ $table_name }{'comments'} }, $item{'comment_phrase'};
303 comment_on_column : /comment/i /on/i /column/i column_name /is/i comment_phrase ';'
305 my $table_name = $item[4]->{'table'};
306 my $field_name = $item[4]->{'field'};
307 if ($tables{ $table_name }{'fields'}{ $field_name } ) {
308 push @{ $tables{ $table_name }{'fields'}{ $field_name }{'comments'} },
309 $item{'comment_phrase'};
312 die "No such column as $table_name.$field_name";
316 comment_on_other : /comment/i /on/i /\w+/ /\w+/ /is/i comment_phrase ';'
318 push(@table_comments, $item{'comment_phrase'});
321 # [added by cjm 20041019]
322 # [TODO: other comment-on types]
323 # for now we just have a general mechanism for handling other
324 # kinds of comments than table/column; I'm not sure of the best
325 # way to incorporate these into the datamodel
327 # this is the exhaustive list of types of comment:
328 #COMMENT ON DATABASE my_database IS 'Development Database';
329 #COMMENT ON INDEX my_index IS 'Enforces uniqueness on employee id';
330 #COMMENT ON RULE my_rule IS 'Logs UPDATES of employee records';
331 #COMMENT ON SEQUENCE my_sequence IS 'Used to generate primary keys';
332 #COMMENT ON TABLE my_table IS 'Employee Information';
333 #COMMENT ON TYPE my_type IS 'Complex Number support';
334 #COMMENT ON VIEW my_view IS 'View of departmental costs';
335 #COMMENT ON COLUMN my_table.my_field IS 'Employee ID number';
336 #COMMENT ON TRIGGER my_trigger ON my_table IS 'Used for R.I.';
338 # this is tested by test 08
340 column_name : NAME '.' NAME
341 { $return = { table => $item[1], field => $item[3] } }
343 comment_phrase : /null/i
346 comment_phrase : /'/ comment_phrase_unquoted(s) /'/
347 { my $phrase = join(' ', @{ $item[2] });
350 # [cjm TODO: double-single quotes in a comment_phrase]
351 comment_phrase_unquoted : /[^\']*/
352 { $return = $item[1] }
355 xxxcomment_phrase : /'.*?'|NULL/
357 my $val = $item[1] || '';
362 field : field_comment(s?) field_name data_type field_meta(s?) field_comment(s?)
364 my ( $default, @constraints, $is_pk );
366 for my $meta ( @{ $item[4] } ) {
367 if ( $meta->{'type'} eq 'default' ) {
371 elsif ( $meta->{'type'} eq 'not_null' ) {
374 elsif ( $meta->{'type'} eq 'primary_key' ) {
378 push @constraints, $meta if $meta->{'supertype'} eq 'constraint';
381 my @comments = ( @{ $item[1] }, @{ $item[5] } );
384 supertype => 'field',
385 name => $item{'field_name'},
386 data_type => $item{'data_type'}{'type'},
387 size => $item{'data_type'}{'size'},
388 is_nullable => $is_nullable,
389 default => $default->{'value'},
390 constraints => [ @constraints ],
391 comments => [ @comments ],
392 is_primary_key => $is_pk || 0,
393 is_auto_increment => $item{'data_type'}{'is_auto_increment'},
398 field_comment : /^\s*(?:#|-{2})(.*)\n/
400 my $comment = $item[1];
401 $comment =~ s/^\s*(#|-*)\s*//;
402 $comment =~ s/\s*$//;
406 field_meta : default_val
409 column_constraint : constraint_name(?) column_constraint_type deferrable(?) deferred(?)
411 my $desc = $item{'column_constraint_type'};
412 my $type = $desc->{'type'};
413 my $fields = $desc->{'fields'} || [];
414 my $expression = $desc->{'expression'} || '';
417 supertype => 'constraint',
418 name => $item{'constraint_name'}[0] || '',
420 expression => $type eq 'check' ? $expression : '',
421 deferrable => $item{'deferrable'},
422 deferred => $item{'deferred'},
423 reference_table => $desc->{'reference_table'},
424 reference_fields => $desc->{'reference_fields'},
425 match_type => $desc->{'match_type'},
426 on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'},
427 on_update => $desc->{'on_update'} || $desc->{'on_update_do'},
431 constraint_name : /constraint/i name_with_opt_quotes { $item[2] }
433 column_constraint_type : /not null/i { $return = { type => 'not_null' } }
436 { $return = { type => 'null' } }
439 { $return = { type => 'unique' } }
442 { $return = { type => 'primary_key' } }
444 /check/i '(' /[^)]+/ ')'
445 { $return = { type => 'check', expression => $item[3] } }
447 /references/i table_name parens_word_list(?) match_type(?) key_action(s?)
449 my $table_info = $item{'table_name'};
450 my $schema_name = $table_info->{'schema_name'};
451 my $table_name = $table_info->{'table_name'};
452 my ( $on_delete, $on_update );
453 for my $action ( @{ $item[5] || [] } ) {
454 $on_delete = $action->{'action'} if $action->{'type'} eq 'delete';
455 $on_update = $action->{'action'} if $action->{'type'} eq 'update';
459 type => 'foreign_key',
460 reference_table => $table_name,
461 reference_fields => $item[3][0],
462 match_type => $item[4][0],
463 on_delete => $on_delete,
464 on_update => $on_update,
468 table_name : schema_qualification(?) name_with_opt_quotes {
469 $return = { schema_name => $item[1], table_name => $item[2] }
472 schema_qualification : name_with_opt_quotes '.'
474 schema_name : name_with_opt_quotes
476 field_name : name_with_opt_quotes
478 name_with_opt_quotes : double_quote(?) NAME double_quote(?) { $item[2] }
484 data_type : pg_data_type parens_value_list(?)
486 my $data_type = $item[1];
489 # We can deduce some sizes from the data type's name.
491 if ( my $size = $item[2][0] ) {
492 $data_type->{'size'} = $size;
495 $return = $data_type;
517 $return = { type => 'interval' };
520 /(integer|int4?)/i # interval must come before this
536 /(double precision|float8?)/i
544 /(bigserial|serial8)/i
549 is_auto_increment => 1,
558 is_auto_increment => 1,
562 /(bit varying|varbit)/i
564 $return = { type => 'varbit' };
569 $return = { type => 'varchar' };
574 $return = { type => 'char' };
579 $return = { type => 'boolean' };
584 $return = { type => 'bytea' };
587 /(timestamptz|timestamp)(?:\(\d\))?( with(out)? time zone)?/i
589 $return = { type => 'timestamp' };
600 /(bit|box|cidr|circle|date|inet|line|lseg|macaddr|money|numeric|decimal|path|point|polygon|timetz|time|varchar)/i
602 $return = { type => $item[1] };
605 parens_value_list : '(' VALUE(s /,/) ')'
609 parens_word_list : '(' name_with_opt_quotes(s /,/) ')'
612 field_size : '(' num_range ')' { $item{'num_range'} }
614 num_range : DIGITS ',' DIGITS
615 { $return = $item[1].','.$item[3] }
617 { $return = $item[1] }
619 table_constraint : comment(s?) constraint_name(?) table_constraint_type deferrable(?) deferred(?) comment(s?)
621 my $desc = $item{'table_constraint_type'};
622 my $type = $desc->{'type'};
623 my $fields = $desc->{'fields'};
624 my $expression = $desc->{'expression'};
625 my @comments = ( @{ $item[1] }, @{ $item[-1] } );
628 name => $item{'constraint_name'}[0] || '',
629 supertype => 'constraint',
631 fields => $type ne 'check' ? $fields : [],
632 expression => $type eq 'check' ? $expression : '',
633 deferrable => $item{'deferrable'},
634 deferred => $item{'deferred'},
635 reference_table => $desc->{'reference_table'},
636 reference_fields => $desc->{'reference_fields'},
637 match_type => $desc->{'match_type'}[0],
638 on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'},
639 on_update => $desc->{'on_update'} || $desc->{'on_update_do'},
640 comments => [ @comments ],
644 table_constraint_type : /primary key/i '(' name_with_opt_quotes(s /,/) ')'
647 type => 'primary_key',
652 /unique/i '(' name_with_opt_quotes(s /,/) ')'
660 /check/i '(' /[^)]+/ ')'
664 expression => $item[3],
668 /foreign key/i '(' name_with_opt_quotes(s /,/) ')' /references/i table_name parens_word_list(?) match_type(?) key_action(s?)
670 my ( $on_delete, $on_update );
671 for my $action ( @{ $item[9] || [] } ) {
672 $on_delete = $action->{'action'} if $action->{'type'} eq 'delete';
673 $on_update = $action->{'action'} if $action->{'type'} eq 'update';
677 supertype => 'constraint',
678 type => 'foreign_key',
680 reference_table => $item[6]->{'table_name'},
681 reference_fields => $item[7][0],
682 match_type => $item[8][0],
683 on_delete => $on_delete || '',
684 on_update => $on_update || '',
688 deferrable : not(?) /deferrable/i
690 $return = ( $item[1] =~ /not/i ) ? 0 : 1;
693 deferred : /initially/i /(deferred|immediate)/i { $item[2] }
695 match_type : /match full/i { 'match_full' }
697 /match partial/i { 'match_partial' }
699 key_action : key_delete
703 key_delete : /on delete/i key_mutation
711 key_update : /on update/i key_mutation
719 key_mutation : /no action/i { $return = 'no_action' }
721 /restrict/i { $return = 'restrict' }
723 /cascade/i { $return = 'cascade' }
725 /set null/i { $return = 'set null' }
727 /set default/i { $return = 'set default' }
729 alter : alter_table table_name add_column field ';'
731 my $field_def = $item[4];
732 $tables{ $item[2]->{'table_name'} }{'fields'}{ $field_def->{'name'} } = {
733 %$field_def, order => $field_order++
738 alter : alter_table table_name ADD table_constraint ';'
740 my $table_name = $item[2]->{'table_name'};
741 my $constraint = $item[4];
742 push @{ $tables{ $table_name }{'constraints'} }, $constraint;
746 alter : alter_table table_name drop_column NAME restrict_or_cascade(?) ';'
748 $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'drop'} = 1;
752 alter : alter_table table_name alter_column NAME alter_default_val ';'
754 $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'default'} =
760 # These will just parse for now but won't affect the structure. - ky
762 alter : alter_table table_name /rename/i /to/i NAME ';'
765 alter : alter_table table_name alter_column NAME SET /statistics/i INTEGER ';'
768 alter : alter_table table_name alter_column NAME SET /storage/i storage_type ';'
771 alter : alter_table table_name rename_column NAME /to/i NAME ';'
774 alter : alter_table table_name DROP /constraint/i NAME restrict_or_cascade ';'
777 alter : alter_table table_name /owner/i /to/i NAME ';'
780 alter : alter_sequence NAME /owned/i /by/i column_name ';'
783 storage_type : /(plain|external|extended|main)/i
785 temporary: /temp(orary)?\\b/i
787 temporary_table: temporary
792 alter_default_val : SET default_val
794 $return = { value => $item[2]->{'value'} }
798 $return = { value => undef }
802 # This is a little tricky to get right, at least WRT to making the
803 # tests pass. The problem is that the constraints are stored just as
804 # a list (no name access), and the tests expect the constraints in a
805 # particular order. I'm going to leave the rule but disable the code
808 alter : alter_table table_name alter_column NAME alter_nullable ';'
810 # my $table_name = $item[2]->{'table_name'};
811 # my $field_name = $item[4];
812 # my $is_nullable = $item[5]->{'is_nullable'};
814 # $tables{ $table_name }{'fields'}{ $field_name }{'is_nullable'} =
817 # if ( $is_nullable ) {
819 # push @{ $tables{ $table_name }{'constraints'} }, {
820 # type => 'not_null',
821 # fields => [ $field_name ],
826 # 0 .. $#{ $tables{ $table_name }{'constraints'} || [] }
828 # my $c = $tables{ $table_name }{'constraints'}[ $i ] or next;
829 # my $fields = join( '', @{ $c->{'fields'} || [] } ) or next;
830 # if ( $c->{'type'} eq 'not_null' && $fields eq $field_name ) {
831 # delete $tables{ $table_name }{'constraints'}[ $i ];
840 alter_nullable : SET not_null
842 $return = { is_nullable => 0 }
846 $return = { is_nullable => 1 }
849 not_null : /not/i /null/i
853 add_column : ADD COLUMN(?)
855 alter_table : ALTER TABLE ONLY(?)
857 alter_sequence : ALTER SEQUENCE
859 drop_column : DROP COLUMN(?)
861 alter_column : ALTER COLUMN(?)
863 rename_column : /rename/i COLUMN(?)
865 restrict_or_cascade : /restrict/i |
868 # Handle functions that can be called
869 select : SELECT select_function ';'
872 # Read the setval function but don't do anything with it because this parser
873 # isn't handling sequences
874 select_function : schema_qualification(?) /setval/i '(' VALUE /,/ VALUE /,/ /(true|false)/i ')'
877 # Skipping all COPY commands
878 copy : COPY WORD /[^;]+/ ';' { 1 }
881 # The "\." allows reading in from STDIN but this isn't needed for schema
882 # creation, so it is skipped.
887 # End basically useless stuff. - ky
890 create_table : CREATE TABLE
892 create_index : CREATE /index/i
894 default_val : DEFAULT /(\d+|'[^']*'|\w+\(.*\))|\w+/
896 my $val = defined $item[2] ? $item[2] : '';
899 supertype => 'constraint',
907 supertype => 'constraint',
913 name_with_opt_paren : NAME parens_value_list(s?)
914 { $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] }
916 unique : /unique/i { 1 }
918 key : /key/i | /index/i
920 table_option : /inherits/i '(' name_with_opt_quotes(s /,/) ')'
922 $return = { type => 'inherits', table_name => $item[3] }
927 $return = { type => $item[1] =~ /out/i ? 'without_oids' : 'with_oids' }
948 SEMICOLON : /\s*;\n?/
950 SEQUENCE : /sequence/i
973 VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/
975 | /'.*?'/ # XXX doesn't handle embedded quotes
982 # -------------------------------------------------------------------
984 my ( $translator, $data ) = @_;
985 $parser ||= Parse::RecDescent->new($GRAMMAR);
987 $::RD_TRACE = $translator->trace ? 1 : undef;
988 $DEBUG = $translator->debug;
990 unless (defined $parser) {
991 return $translator->error("Error instantiating Parse::RecDescent ".
992 "instance: Bad grammer");
995 my $result = $parser->startrule($data);
996 die "Parse failed.\n" unless defined $result;
997 warn Dumper($result) if $DEBUG;
999 my $schema = $translator->schema;
1001 ( $result->{ $a }{'order'} || 0 ) <=> ( $result->{ $b }{'order'} || 0 )
1002 } keys %{ $result };
1004 for my $table_name ( @tables ) {
1005 my $tdata = $result->{ $table_name };
1006 my $table = $schema->add_table(
1007 #schema => $tdata->{'schema_name'},
1008 name => $tdata->{'table_name'},
1009 ) or die "Couldn't create table '$table_name': " . $schema->error;
1011 $table->extra(temporary => 1) if $tdata->{'temporary'};
1013 $table->comments( $tdata->{'comments'} );
1016 $tdata->{'fields'}{ $a }{'order'}
1018 $tdata->{'fields'}{ $b }{'order'}
1019 } keys %{ $tdata->{'fields'} };
1021 for my $fname ( @fields ) {
1022 my $fdata = $tdata->{'fields'}{ $fname };
1023 next if $fdata->{'drop'};
1024 my $field = $table->add_field(
1025 name => $fdata->{'name'},
1026 data_type => $fdata->{'data_type'},
1027 size => $fdata->{'size'},
1028 default_value => $fdata->{'default'},
1029 is_auto_increment => $fdata->{'is_auto_increment'},
1030 is_nullable => $fdata->{'is_nullable'},
1031 comments => $fdata->{'comments'},
1032 ) or die $table->error;
1034 $table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
1036 for my $cdata ( @{ $fdata->{'constraints'} } ) {
1037 next unless $cdata->{'type'} eq 'foreign_key';
1038 $cdata->{'fields'} ||= [ $field->name ];
1039 push @{ $tdata->{'constraints'} }, $cdata;
1043 for my $idata ( @{ $tdata->{'indices'} || [] } ) {
1044 my $index = $table->add_index(
1045 name => $idata->{'name'},
1046 type => uc $idata->{'type'},
1047 fields => $idata->{'fields'},
1048 ) or die $table->error . ' ' . $table->name;
1051 for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
1052 my $constraint = $table->add_constraint(
1053 name => $cdata->{'name'},
1054 type => $cdata->{'type'},
1055 fields => $cdata->{'fields'},
1056 reference_table => $cdata->{'reference_table'},
1057 reference_fields => $cdata->{'reference_fields'},
1058 match_type => $cdata->{'match_type'} || '',
1059 on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'},
1060 on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'},
1061 expression => $cdata->{'expression'},
1062 ) or die "Can't add constraint of type '" .
1063 $cdata->{'type'} . "' to table '" . $table->name .
1064 "': " . $table->error;
1073 # -------------------------------------------------------------------
1074 # Rescue the drowning and tie your shoestrings.
1075 # Henry David Thoreau
1076 # -------------------------------------------------------------------
1082 Ken Y. Clark E<lt>kclark@cpan.orgE<gt>,
1083 Allen Day E<lt>allenday@ucla.eduE<gt>.
1087 perl(1), Parse::RecDescent.