package SQL::Translator::Parser::PostgreSQL;
# -------------------------------------------------------------------
-# $Id: PostgreSQL.pm,v 1.1 2003-02-21 19:35:17 allenday Exp $
+# $Id: PostgreSQL.pm 1440 2009-01-17 16:31:57Z jawnsy $
# -------------------------------------------------------------------
-# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
-# darren chamberlain <darren@cpan.org>,
-# Chris Mungall <cjm@fruitfly.org>
+# Copyright (C) 2002-2009 SQLFairy Authors
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
=head1 DESCRIPTION
-The grammar is influenced heavily by Tim Bunce's "mysql2ora" grammar.
+The grammar was started from the MySQL parsers. Here is the description
+from PostgreSQL:
+
+Table:
+(http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createtable.html)
+
+ CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name (
+ { column_name data_type [ DEFAULT default_expr ]
+ [ column_constraint [, ... ] ]
+ | table_constraint } [, ... ]
+ )
+ [ INHERITS ( parent_table [, ... ] ) ]
+ [ WITH OIDS | WITHOUT OIDS ]
+
+ where column_constraint is:
+
+ [ CONSTRAINT constraint_name ]
+ { NOT NULL | NULL | UNIQUE | PRIMARY KEY |
+ CHECK (expression) |
+ REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ]
+ [ ON DELETE action ] [ ON UPDATE action ] }
+ [ DEFERRABLE | NOT DEFERRABLE ]
+ [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
+
+ and table_constraint is:
+
+ [ CONSTRAINT constraint_name ]
+ { UNIQUE ( column_name [, ... ] ) |
+ PRIMARY KEY ( column_name [, ... ] ) |
+ CHECK ( expression ) |
+ FOREIGN KEY ( column_name [, ... ] )
+ REFERENCES reftable [ ( refcolumn [, ... ] ) ]
+ [ MATCH FULL | MATCH PARTIAL ]
+ [ ON DELETE action ] [ ON UPDATE action ] }
+ [ DEFERRABLE | NOT DEFERRABLE ]
+ [ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
+
+Index:
+(http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createindex.html)
+
+ CREATE [ UNIQUE ] INDEX index_name ON table
+ [ USING acc_method ] ( column [ ops_name ] [, ...] )
+ [ WHERE predicate ]
+ CREATE [ UNIQUE ] INDEX index_name ON table
+ [ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] )
+ [ WHERE predicate ]
+
+Alter table:
+
+ ALTER TABLE [ ONLY ] table [ * ]
+ ADD [ COLUMN ] column type [ column_constraint [ ... ] ]
+ ALTER TABLE [ ONLY ] table [ * ]
+ ALTER [ COLUMN ] column { SET DEFAULT value | DROP DEFAULT }
+ ALTER TABLE [ ONLY ] table [ * ]
+ ALTER [ COLUMN ] column SET STATISTICS integer
+ ALTER TABLE [ ONLY ] table [ * ]
+ RENAME [ COLUMN ] column TO newcolumn
+ ALTER TABLE table
+ RENAME TO new_table
+ ALTER TABLE table
+ ADD table_constraint_definition
+ ALTER TABLE [ ONLY ] table
+ DROP CONSTRAINT constraint { RESTRICT | CASCADE }
+ ALTER TABLE table
+ OWNER TO new_owner
+
+View table:
+
+ CREATE [ OR REPLACE ] VIEW view [ ( column name list ) ] AS SELECT query
=cut
use strict;
-use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.1 $ =~ /(\d+)\.(\d+)/;
+use vars qw[ $DEBUG $GRAMMAR @EXPORT_OK ];
$DEBUG = 0 unless defined $DEBUG;
use Data::Dumper;
$GRAMMAR = q!
-{ our ( %tables, $table_order ) }
+{ my ( %tables, $table_order, $field_order, @table_comments) }
-startrule : statement(s) { \%tables }
-
-statement : comment
+#
+# The "eofile" rule makes the parser fail if any "statement" rule
+# fails. Otherwise, the first successful match by a "statement"
+# won't cause the failure needed to know that the parse, as a whole,
+# failed. -ky
+#
+startrule : statement(s) eofile { \%tables }
+
+eofile : /^\Z/
+
+
+statement : create
+ | comment_on_table
+ | comment_on_column
+ | comment_on_other
+ | comment
+ | alter
+ | grant
+ | revoke
| drop
- | create
+ | insert
+ | connect
+ | update
+ | set
+ | select
+ | copy
+ | readin_symbol
| <error>
-drop : /drop/i WORD(s) ';'
-
-create : create_table table_name '(' comment(s?) create_definition(s /,/) ')' table_option(s?) ';'
- {
- my $table_name = $item{'table_name'};
- $tables{ $table_name }{'order'} = ++$table_order;
- $tables{ $table_name }{'table_name'} = $table_name;
-
- my $i = 1;
- for my $definition ( @{ $item[4] } ) {
- if ( $definition->{'type'} eq 'field' ) {
- my $field_name = $definition->{'name'};
- $tables{ $table_name }{'fields'}{ $field_name } =
- { %$definition, order => $i };
- $i++;
+connect : /^\s*\\\connect.*\n/
+
+set : /set/i /[^;]*/ ';'
+
+revoke : /revoke/i WORD(s /,/) /on/i TABLE(?) table_name /from/i name_with_opt_quotes(s /,/) ';'
+ {
+ my $table_info = $item{'table_name'};
+ my $schema_name = $table_info->{'schema_name'};
+ my $table_name = $table_info->{'table_name'};
+ push @{ $tables{ $table_name }{'permissions'} }, {
+ type => 'revoke',
+ actions => $item[2],
+ users => $item[7],
+ }
+ }
+
+revoke : /revoke/i WORD(s /,/) /on/i SCHEMA(?) schema_name /from/i name_with_opt_quotes(s /,/) ';'
+ { 1 }
+
+grant : /grant/i WORD(s /,/) /on/i TABLE(?) table_name /to/i name_with_opt_quotes(s /,/) ';'
+ {
+ my $table_info = $item{'table_name'};
+ my $schema_name = $table_info->{'schema_name'};
+ my $table_name = $table_info->{'table_name'};
+ push @{ $tables{ $table_name }{'permissions'} }, {
+ type => 'grant',
+ actions => $item[2],
+ users => $item[7],
+ }
+ }
+
+grant : /grant/i WORD(s /,/) /on/i SCHEMA(?) schema_name /to/i name_with_opt_quotes(s /,/) ';'
+ { 1 }
+
+drop : /drop/i /[^;]*/ ';'
+
+string :
+ /'(\\.|''|[^\\\'])*'/
+
+nonstring : /[^;\'"]+/
+
+statement_body : (string | nonstring)(s?)
+
+insert : /insert/i statement_body ';'
+
+update : /update/i statement_body ';'
+
+#
+# Create table.
+#
+create : CREATE temporary_table(?) TABLE table_name '(' create_definition(s? /,/) ')' table_option(s?) ';'
+ {
+ my $table_info = $item{'table_name'};
+ my $schema_name = $table_info->{'schema_name'};
+ my $table_name = $table_info->{'table_name'};
+ $tables{ $table_name }{'order'} = ++$table_order;
+ $tables{ $table_name }{'schema_name'} = $schema_name;
+ $tables{ $table_name }{'table_name'} = $table_name;
+
+ $tables{ $table_name }{'temporary'} = $item[2][0];
+
+ if ( @table_comments ) {
+ $tables{ $table_name }{'comments'} = [ @table_comments ];
+ @table_comments = ();
+ }
+
+ my @constraints;
+ for my $definition ( @{ $item[6] } ) {
+ if ( $definition->{'supertype'} eq 'field' ) {
+ my $field_name = $definition->{'name'};
+ $tables{ $table_name }{'fields'}{ $field_name } =
+ { %$definition, order => $field_order++ };
- if ( $definition->{'is_primary_key'} ) {
- push @{ $tables{ $table_name }{'indices'} },
- {
- type => 'primary_key',
- fields => [ $field_name ],
- }
- ;
- }
- }
- else {
- push @{ $tables{ $table_name }{'indices'} },
- $definition;
- }
- }
-
- for my $opt ( @{ $item{'table_option'} } ) {
- if ( my ( $key, $val ) = each %$opt ) {
- $tables{ $table_name }{'table_options'}{ $key } = $val;
- }
- }
- }
-
- create : /CREATE/i unique(?) /(INDEX|KEY)/i index_name /on/i table_name '(' field_name(s /,/) ')' ';'
+ for my $constraint ( @{ $definition->{'constraints'} || [] } ) {
+ $constraint->{'fields'} = [ $field_name ];
+ push @{ $tables{ $table_name }{'constraints'} },
+ $constraint;
+ }
+ }
+ elsif ( $definition->{'supertype'} eq 'constraint' ) {
+ push @{ $tables{ $table_name }{'constraints'} }, $definition;
+ }
+ elsif ( $definition->{'supertype'} eq 'index' ) {
+ push @{ $tables{ $table_name }{'indices'} }, $definition;
+ }
+ }
+
+ for my $option ( @{ $item[8] } ) {
+ $tables{ $table_name }{'table_options(s?)'}{ $option->{'type'} } =
+ $option;
+ }
+
+ 1;
+ }
+
+create : CREATE unique(?) /(index|key)/i index_name /on/i table_name using_method(?) '(' field_name(s /,/) ')' where_predicate(?) ';'
{
- push @{ $tables{ $item{'table_name'} }{'indices'} },
+ my $table_info = $item{'table_name'};
+ my $schema_name = $table_info->{'schema_name'};
+ my $table_name = $table_info->{'table_name'};
+ push @{ $tables{ $table_name }{'indices'} },
{
- name => $item[4],
- type => $item[2] ? 'unique' : 'normal',
- fields => $item[8],
+ name => $item{'index_name'},
+ supertype => $item{'unique'}[0] ? 'constraint' : 'index',
+ type => $item{'unique'}[0] ? 'unique' : 'normal',
+ fields => $item[9],
+ method => $item{'using_method'}[0],
}
;
+
}
-create_definition : index
- | field
+#
+# Create anything else (e.g., domain, etc.)
+#
+create : CREATE WORD /[^;]+/ ';'
+ { @table_comments = (); }
+
+using_method : /using/i WORD { $item[2] }
+
+where_predicate : /where/i /[^;]+/
+
+create_definition : field
+ | table_constraint
| <error>
-comment : /^\s*(?:#|-{2}).*\n/
+comment : /^\s*(?:#|-{2})(.*)\n/
+ {
+ my $comment = $item[1];
+ $comment =~ s/^\s*(#|-*)\s*//;
+ $comment =~ s/\s*$//;
+ $return = $comment;
+ push @table_comments, $comment;
+ }
-blank : /\s*/
+comment_on_table : /comment/i /on/i /table/i table_name /is/i comment_phrase ';'
+ {
+ my $table_info = $item{'table_name'};
+ my $schema_name = $table_info->{'schema_name'};
+ my $table_name = $table_info->{'table_name'};
+ push @{ $tables{ $table_name }{'comments'} }, $item{'comment_phrase'};
+ }
-field : field_name data_type field_qualifier(s?)
+comment_on_column : /comment/i /on/i /column/i column_name /is/i comment_phrase ';'
{
- my %qualifiers = map { %$_ } @{ $item{'field_qualifier'} || [] };
- my $null = defined $item{'not_null'} ? $item{'not_null'} : 1;
- delete $qualifiers{'not_null'};
- if ( my @type_quals = @{ $item{'data_type'}{'qualifiers'} || [] } ) {
- $qualifiers{ $_ } = 1 for @type_quals;
+ my $table_name = $item[4]->{'table'};
+ my $field_name = $item[4]->{'field'};
+ if ($tables{ $table_name }{'fields'}{ $field_name } ) {
+ push @{ $tables{ $table_name }{'fields'}{ $field_name }{'comments'} },
+ $item{'comment_phrase'};
+ }
+ else {
+ die "No such column as $table_name.$field_name";
}
-
- $return = {
- type => 'field',
- name => $item{'field_name'},
- data_type => $item{'data_type'}{'type'},
- size => $item{'data_type'}{'size'},
- list => $item{'data_type'}{'list'},
- null => $null,
- %qualifiers,
- }
}
- | <error>
-field_qualifier : not_null
- {
- $return = {
- null => $item{'not_null'},
- }
+comment_on_other : /comment/i /on/i /\w+/ /\w+/ /is/i comment_phrase ';'
+ {
+ push(@table_comments, $item{'comment_phrase'});
}
-field_qualifier : default_val
+# [added by cjm 20041019]
+# [TODO: other comment-on types]
+# for now we just have a general mechanism for handling other
+# kinds of comments than table/column; I'm not sure of the best
+# way to incorporate these into the datamodel
+#
+# this is the exhaustive list of types of comment:
+#COMMENT ON DATABASE my_database IS 'Development Database';
+#COMMENT ON INDEX my_index IS 'Enforces uniqueness on employee id';
+#COMMENT ON RULE my_rule IS 'Logs UPDATES of employee records';
+#COMMENT ON SEQUENCE my_sequence IS 'Used to generate primary keys';
+#COMMENT ON TABLE my_table IS 'Employee Information';
+#COMMENT ON TYPE my_type IS 'Complex Number support';
+#COMMENT ON VIEW my_view IS 'View of departmental costs';
+#COMMENT ON COLUMN my_table.my_field IS 'Employee ID number';
+#COMMENT ON TRIGGER my_trigger ON my_table IS 'Used for R.I.';
+#
+# this is tested by test 08
+
+column_name : NAME '.' NAME
+ { $return = { table => $item[1], field => $item[3] } }
+
+comment_phrase : /null/i
+ { $return = 'NULL' }
+
+comment_phrase : /'/ comment_phrase_unquoted(s) /'/
+ { my $phrase = join(' ', @{ $item[2] });
+ $return = $phrase}
+
+# [cjm TODO: double-single quotes in a comment_phrase]
+comment_phrase_unquoted : /[^\']*/
+ { $return = $item[1] }
+
+
+xxxcomment_phrase : /'.*?'|NULL/
{
- $return = {
- default => $item{'default_val'},
- }
+ my $val = $item[1] || '';
+ $val =~ s/^'|'$//g;
+ $return = $val;
}
-field_qualifier : auto_inc
- {
- $return = {
- is_auto_inc => $item{'auto_inc'},
+field : field_comment(s?) field_name data_type field_meta(s?) field_comment(s?)
+ {
+ my ( $default, @constraints, $is_pk );
+ my $is_nullable = 1;
+ for my $meta ( @{ $item[4] } ) {
+ if ( $meta->{'type'} eq 'default' ) {
+ $default = $meta;
+ next;
+ }
+ elsif ( $meta->{'type'} eq 'not_null' ) {
+ $is_nullable = 0;
+ }
+ elsif ( $meta->{'type'} eq 'primary_key' ) {
+ $is_pk = 1;
+ }
+
+ push @constraints, $meta if $meta->{'supertype'} eq 'constraint';
+ }
+
+ my @comments = ( @{ $item[1] }, @{ $item[5] } );
+
+ $return = {
+ supertype => 'field',
+ name => $item{'field_name'},
+ data_type => $item{'data_type'}{'type'},
+ size => $item{'data_type'}{'size'},
+ is_nullable => $is_nullable,
+ default => $default->{'value'},
+ constraints => [ @constraints ],
+ comments => [ @comments ],
+ is_primary_key => $is_pk || 0,
+ is_auto_increment => $item{'data_type'}{'is_auto_increment'},
}
}
+ | <error>
-field_qualifier : ',' primary_key '(' field_name ')'
+field_comment : /^\s*(?:#|-{2})(.*)\n/
{
- $return = {
- is_primary_key => $item{'primary_key'},
- }
+ my $comment = $item[1];
+ $comment =~ s/^\s*(#|-*)\s*//;
+ $comment =~ s/\s*$//;
+ $return = $comment;
}
-field_qualifier : ',' foreign_key '(' field_name ')' foreign_key_reference foreign_table_name '(' foreign_field_name ')'
- {
- $return = {
- is_foreign_key => $item{'foreign_key'},
- foreign_table => $item{'foreign_table_name'},
- foreign_field => $item{'foreign_field_name'},
- name => $item{'field_name'},
+field_meta : default_val
+ | column_constraint
+
+column_constraint : constraint_name(?) column_constraint_type deferrable(?) deferred(?)
+ {
+ my $desc = $item{'column_constraint_type'};
+ my $type = $desc->{'type'};
+ my $fields = $desc->{'fields'} || [];
+ my $expression = $desc->{'expression'} || '';
+
+ $return = {
+ supertype => 'constraint',
+ name => $item{'constraint_name'}[0] || '',
+ type => $type,
+ expression => $type eq 'check' ? $expression : '',
+ deferrable => $item{'deferrable'},
+ deferred => $item{'deferred'},
+ reference_table => $desc->{'reference_table'},
+ reference_fields => $desc->{'reference_fields'},
+ match_type => $desc->{'match_type'},
+ on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'},
+ on_update => $desc->{'on_update'} || $desc->{'on_update_do'},
}
}
-field_qualifier : unsigned
- {
- $return = {
- is_unsigned => $item{'unsigned'},
- }
+constraint_name : /constraint/i name_with_opt_quotes { $item[2] }
+
+column_constraint_type : /not null/i { $return = { type => 'not_null' } }
+ |
+ /null/i
+ { $return = { type => 'null' } }
+ |
+ /unique/i
+ { $return = { type => 'unique' } }
+ |
+ /primary key/i
+ { $return = { type => 'primary_key' } }
+ |
+ /check/i '(' /[^)]+/ ')'
+ { $return = { type => 'check', expression => $item[3] } }
+ |
+ /references/i table_name parens_word_list(?) match_type(?) key_action(s?)
+ {
+ my $table_info = $item{'table_name'};
+ my $schema_name = $table_info->{'schema_name'};
+ my $table_name = $table_info->{'table_name'};
+ my ( $on_delete, $on_update );
+ for my $action ( @{ $item[5] || [] } ) {
+ $on_delete = $action->{'action'} if $action->{'type'} eq 'delete';
+ $on_update = $action->{'action'} if $action->{'type'} eq 'update';
+ }
+
+ $return = {
+ type => 'foreign_key',
+ reference_table => $table_name,
+ reference_fields => $item[3][0],
+ match_type => $item[4][0],
+ on_delete => $on_delete,
+ on_update => $on_update,
+ }
}
-index : primary_key_index
- | unique_index
- | fulltext_index
- | normal_index
+table_name : schema_qualification(?) name_with_opt_quotes {
+ $return = { schema_name => $item[1], table_name => $item[2] }
+}
+
+ schema_qualification : name_with_opt_quotes '.'
-table_name : WORD
+schema_name : name_with_opt_quotes
-foreign_table_name : WORD
+field_name : name_with_opt_quotes
-field_name : WORD
+name_with_opt_quotes : double_quote(?) NAME double_quote(?) { $item[2] }
-foreign_field_name : WORD
+double_quote: /"/
-index_name : WORD
+index_name : WORD
-data_type : WORD parens_value_list(s?) type_qualifier(s?)
+data_type : pg_data_type parens_value_list(?)
{
- my $type = $item[1];
- my $size; # field size, applicable only to non-set fields
- my $list; # set list, applicable only to sets (duh)
+ my $data_type = $item[1];
- if ( uc($type) =~ /^(SET|ENUM)$/ ) {
- $size = undef;
- $list = $item[2][0];
- }
- else {
- $size = $item[2][0];
- $list = [];
+ #
+ # We can deduce some sizes from the data type's name.
+ #
+ if ( my $size = $item[2][0] ) {
+ $data_type->{'size'} = $size;
}
- $return = {
- type => $type,
- size => $size,
- list => $list,
- qualifiers => $item[3],
- }
+ $return = $data_type;
}
+pg_data_type :
+ /(bigint|int8)/i
+ {
+ $return = {
+ type => 'integer',
+ size => 20,
+ };
+ }
+ |
+ /(smallint|int2)/i
+ {
+ $return = {
+ type => 'integer',
+ size => 5,
+ };
+ }
+ |
+ /interval/i
+ {
+ $return = { type => 'interval' };
+ }
+ |
+ /(integer|int4?)/i # interval must come before this
+ {
+ $return = {
+ type => 'integer',
+ size => 10,
+ };
+ }
+ |
+ /(real|float4)/i
+ {
+ $return = {
+ type => 'real',
+ size => 10,
+ };
+ }
+ |
+ /(double precision|float8?)/i
+ {
+ $return = {
+ type => 'float',
+ size => 20,
+ };
+ }
+ |
+ /(bigserial|serial8)/i
+ {
+ $return = {
+ type => 'integer',
+ size => 20,
+ is_auto_increment => 1,
+ };
+ }
+ |
+ /serial4?/i
+ {
+ $return = {
+ type => 'integer',
+ size => 11,
+ is_auto_increment => 1,
+ };
+ }
+ |
+ /(bit varying|varbit)/i
+ {
+ $return = { type => 'varbit' };
+ }
+ |
+ /character varying/i
+ {
+ $return = { type => 'varchar' };
+ }
+ |
+ /char(acter)?/i
+ {
+ $return = { type => 'char' };
+ }
+ |
+ /bool(ean)?/i
+ {
+ $return = { type => 'boolean' };
+ }
+ |
+ /bytea/i
+ {
+ $return = { type => 'bytea' };
+ }
+ |
+ /(timestamptz|timestamp)(?:\(\d\))?( with(out)? time zone)?/i
+ {
+ $return = { type => 'timestamp' };
+ }
+ |
+ /text/i
+ {
+ $return = {
+ type => 'text',
+ size => 64_000,
+ };
+ }
+ |
+ /(bit|box|cidr|circle|date|inet|line|lseg|macaddr|money|numeric|decimal|path|point|polygon|timetz|time|varchar)/i
+ {
+ $return = { type => $item[1] };
+ }
+
parens_value_list : '(' VALUE(s /,/) ')'
{ $item[2] }
-type_qualifier : /(BINARY|UNSIGNED|ZEROFILL)/i
- { lc $item[1] }
-field_type : WORD
+parens_word_list : '(' name_with_opt_quotes(s /,/) ')'
+ { $item[2] }
-field_size : '(' num_range ')' { $item{'num_range'} }
+field_size : '(' num_range ')' { $item{'num_range'} }
-num_range : DIGITS ',' DIGITS
+num_range : DIGITS ',' DIGITS
{ $return = $item[1].','.$item[3] }
| DIGITS
{ $return = $item[1] }
-create_table : /create/i /table/i
+table_constraint : comment(s?) constraint_name(?) table_constraint_type deferrable(?) deferred(?) comment(s?)
+ {
+ my $desc = $item{'table_constraint_type'};
+ my $type = $desc->{'type'};
+ my $fields = $desc->{'fields'};
+ my $expression = $desc->{'expression'};
+ my @comments = ( @{ $item[1] }, @{ $item[-1] } );
+
+ $return = {
+ name => $item{'constraint_name'}[0] || '',
+ supertype => 'constraint',
+ type => $type,
+ fields => $type ne 'check' ? $fields : [],
+ expression => $type eq 'check' ? $expression : '',
+ deferrable => $item{'deferrable'},
+ deferred => $item{'deferred'},
+ reference_table => $desc->{'reference_table'},
+ reference_fields => $desc->{'reference_fields'},
+ match_type => $desc->{'match_type'}[0],
+ on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'},
+ on_update => $desc->{'on_update'} || $desc->{'on_update_do'},
+ comments => [ @comments ],
+ }
+ }
-create_index : /create/i /index/i
+table_constraint_type : /primary key/i '(' name_with_opt_quotes(s /,/) ')'
+ {
+ $return = {
+ type => 'primary_key',
+ fields => $item[3],
+ }
+ }
+ |
+ /unique/i '(' name_with_opt_quotes(s /,/) ')'
+ {
+ $return = {
+ type => 'unique',
+ fields => $item[3],
+ }
+ }
+ |
+ /check/i '(' /[^)]+/ ')'
+ {
+ $return = {
+ type => 'check',
+ expression => $item[3],
+ }
+ }
+ |
+ /foreign key/i '(' name_with_opt_quotes(s /,/) ')' /references/i table_name parens_word_list(?) match_type(?) key_action(s?)
+ {
+ my ( $on_delete, $on_update );
+ for my $action ( @{ $item[9] || [] } ) {
+ $on_delete = $action->{'action'} if $action->{'type'} eq 'delete';
+ $on_update = $action->{'action'} if $action->{'type'} eq 'update';
+ }
+
+ $return = {
+ supertype => 'constraint',
+ type => 'foreign_key',
+ fields => $item[3],
+ reference_table => $item[6]->{'table_name'},
+ reference_fields => $item[7][0],
+ match_type => $item[8][0],
+ on_delete => $on_delete || '',
+ on_update => $on_update || '',
+ }
+ }
+
+deferrable : not(?) /deferrable/i
+ {
+ $return = ( $item[1] =~ /not/i ) ? 0 : 1;
+ }
+
+deferred : /initially/i /(deferred|immediate)/i { $item[2] }
+
+match_type : /match full/i { 'match_full' }
+ |
+ /match partial/i { 'match_partial' }
-not_null : /not/i /null/i { $return = 0 }
+key_action : key_delete
+ |
+ key_update
+
+key_delete : /on delete/i key_mutation
+ {
+ $return = {
+ type => 'delete',
+ action => $item[2],
+ };
+ }
+
+key_update : /on update/i key_mutation
+ {
+ $return = {
+ type => 'update',
+ action => $item[2],
+ };
+ }
-unsigned : /unsigned/i { $return = 0 }
+key_mutation : /no action/i { $return = 'no_action' }
+ |
+ /restrict/i { $return = 'restrict' }
+ |
+ /cascade/i { $return = 'cascade' }
+ |
+ /set null/i { $return = 'set null' }
+ |
+ /set default/i { $return = 'set default' }
+
+alter : alter_table table_name add_column field ';'
+ {
+ my $field_def = $item[4];
+ $tables{ $item[2]->{'table_name'} }{'fields'}{ $field_def->{'name'} } = {
+ %$field_def, order => $field_order++
+ };
+ 1;
+ }
-default_val : /default/i /(?:')?[\w\d.-]*(?:')?/
+alter : alter_table table_name ADD table_constraint ';'
{
- $item[2] =~ s/'//g;
- $return = $item[2];
+ my $table_name = $item[2]->{'table_name'};
+ my $constraint = $item[4];
+ push @{ $tables{ $table_name }{'constraints'} }, $constraint;
+ 1;
}
-auto_inc : /auto_increment/i { 1 }
+alter : alter_table table_name drop_column NAME restrict_or_cascade(?) ';'
+ {
+ $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'drop'} = 1;
+ 1;
+ }
-primary_key : /primary/i /key/i { 1 }
+alter : alter_table table_name alter_column NAME alter_default_val ';'
+ {
+ $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'default'} =
+ $item[5]->{'value'};
+ 1;
+ }
-foreign_key : /foreign/i /key/i { 1 }
+#
+# These will just parse for now but won't affect the structure. - ky
+#
+alter : alter_table table_name /rename/i /to/i NAME ';'
+ { 1 }
-foreign_key_reference : /references/i { 1 }
+alter : alter_table table_name alter_column NAME SET /statistics/i INTEGER ';'
+ { 1 }
-primary_key_index : primary_key index_name(?) '(' field_name(s /,/) ')'
- {
- $return = {
- name => $item{'index_name'}[0],
- type => 'primary_key',
- fields => $item[4],
- }
+alter : alter_table table_name alter_column NAME SET /storage/i storage_type ';'
+ { 1 }
+
+alter : alter_table table_name rename_column NAME /to/i NAME ';'
+ { 1 }
+
+alter : alter_table table_name DROP /constraint/i NAME restrict_or_cascade ';'
+ { 1 }
+
+alter : alter_table table_name /owner/i /to/i NAME ';'
+ { 1 }
+
+alter : alter_sequence NAME /owned/i /by/i column_name ';'
+ { 1 }
+
+storage_type : /(plain|external|extended|main)/i
+
+temporary: /temp(orary)?\\b/i
+
+temporary_table: temporary
+ {
+ 1;
}
-normal_index : key index_name(?) '(' name_with_opt_paren(s /,/) ')'
+alter_default_val : SET default_val
{
- $return = {
- name => $item{'index_name'}[0],
- type => 'normal',
- fields => $item[4],
- }
+ $return = { value => $item[2]->{'value'} }
+ }
+ | DROP DEFAULT
+ {
+ $return = { value => undef }
+ }
+
+#
+# This is a little tricky to get right, at least WRT to making the
+# tests pass. The problem is that the constraints are stored just as
+# a list (no name access), and the tests expect the constraints in a
+# particular order. I'm going to leave the rule but disable the code
+# for now. - ky
+#
+alter : alter_table table_name alter_column NAME alter_nullable ';'
+ {
+# my $table_name = $item[2]->{'table_name'};
+# my $field_name = $item[4];
+# my $is_nullable = $item[5]->{'is_nullable'};
+#
+# $tables{ $table_name }{'fields'}{ $field_name }{'is_nullable'} =
+# $is_nullable;
+#
+# if ( $is_nullable ) {
+# 1;
+# push @{ $tables{ $table_name }{'constraints'} }, {
+# type => 'not_null',
+# fields => [ $field_name ],
+# };
+# }
+# else {
+# for my $i (
+# 0 .. $#{ $tables{ $table_name }{'constraints'} || [] }
+# ) {
+# my $c = $tables{ $table_name }{'constraints'}[ $i ] or next;
+# my $fields = join( '', @{ $c->{'fields'} || [] } ) or next;
+# if ( $c->{'type'} eq 'not_null' && $fields eq $field_name ) {
+# delete $tables{ $table_name }{'constraints'}[ $i ];
+# last;
+# }
+# }
+# }
+
+ 1;
}
-unique_index : unique key(?) index_name(?) '(' name_with_opt_paren(s /,/) ')'
+alter_nullable : SET not_null
{
- $return = {
- name => $item{'index_name'}[0],
- type => 'unique',
- fields => $item[5],
- }
+ $return = { is_nullable => 0 }
+ }
+ | DROP not_null
+ {
+ $return = { is_nullable => 1 }
}
-fulltext_index : fulltext key(?) index_name(?) '(' name_with_opt_paren(s /,/) ')'
+not_null : /not/i /null/i
+
+not : /not/i
+
+add_column : ADD COLUMN(?)
+
+alter_table : ALTER TABLE ONLY(?)
+
+alter_sequence : ALTER SEQUENCE
+
+drop_column : DROP COLUMN(?)
+
+alter_column : ALTER COLUMN(?)
+
+rename_column : /rename/i COLUMN(?)
+
+restrict_or_cascade : /restrict/i |
+ /cascade/i
+
+# Handle functions that can be called
+select : SELECT select_function ';'
+ { 1 }
+
+# Read the setval function but don't do anything with it because this parser
+# isn't handling sequences
+select_function : schema_qualification(?) /setval/i '(' VALUE /,/ VALUE /,/ /(true|false)/i ')'
+ { 1 }
+
+# Skipping all COPY commands
+copy : COPY WORD /[^;]+/ ';' { 1 }
+ { 1 }
+
+# The "\." allows reading in from STDIN but this isn't needed for schema
+# creation, so it is skipped.
+readin_symbol : '\.'
+ {1}
+
+#
+# End basically useless stuff. - ky
+#
+
+create_table : CREATE TABLE
+
+create_index : CREATE /index/i
+
+default_val : DEFAULT /(\d+|'[^']*'|\w+\(.*\))|\w+/
{
- $return = {
- name => $item{'index_name'}[0],
- type => 'fulltext',
- fields => $item[5],
- }
+ my $val = defined $item[2] ? $item[2] : '';
+ $val =~ s/^'|'$//g;
+ $return = {
+ supertype => 'constraint',
+ type => 'default',
+ value => $val,
+ }
+ }
+ | /null/i
+ {
+ $return = {
+ supertype => 'constraint',
+ type => 'default',
+ value => 'NULL',
+ }
}
name_with_opt_paren : NAME parens_value_list(s?)
{ $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] }
-fulltext : /fulltext/i { 1 }
-
unique : /unique/i { 1 }
key : /key/i | /index/i
-table_option : /[^\s;]*/
+table_option : /inherits/i '(' name_with_opt_quotes(s /,/) ')'
{
- $return = { split /=/, $item[1] }
+ $return = { type => 'inherits', table_name => $item[3] }
}
+ |
+ /with(out)? oids/i
+ {
+ $return = { type => $item[1] =~ /out/i ? 'without_oids' : 'with_oids' }
+ }
+
+ADD : /add/i
+
+ALTER : /alter/i
+
+CREATE : /create/i
+
+ONLY : /only/i
+
+DEFAULT : /default/i
+
+DROP : /drop/i
+
+COLUMN : /column/i
+
+TABLE : /table/i
+
+SCHEMA : /schema/i
+
+SEMICOLON : /\s*;\n?/
+
+SEQUENCE : /sequence/i
+
+SELECT : /select/i
+
+COPY : /copy/i
+
+INTEGER : /\d+/
WORD : /\w+/
COMMA : ','
+SET : /set/i
+
NAME : "`" /\w+/ "`"
{ $item[2] }
| /\w+/
{ $item[1] }
+ | /[\$\w]+/
+ { $item[1] }
VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/
{ $item[1] }
| /'.*?'/ # XXX doesn't handle embedded quotes
{ $item[1] }
- | /NULL/
+ | /null/i
{ 'NULL' }
!;
my $result = $parser->startrule($data);
die "Parse failed.\n" unless defined $result;
warn Dumper($result) if $DEBUG;
- return $result;
+
+ my $schema = $translator->schema;
+ my @tables = sort {
+ ( $result->{ $a }{'order'} || 0 ) <=> ( $result->{ $b }{'order'} || 0 )
+ } keys %{ $result };
+
+ for my $table_name ( @tables ) {
+ my $tdata = $result->{ $table_name };
+ my $table = $schema->add_table(
+ #schema => $tdata->{'schema_name'},
+ name => $tdata->{'table_name'},
+ ) or die "Couldn't create table '$table_name': " . $schema->error;
+
+ $table->extra(temporary => 1) if $tdata->{'temporary'};
+
+ $table->comments( $tdata->{'comments'} );
+
+ my @fields = sort {
+ $tdata->{'fields'}{ $a }{'order'}
+ <=>
+ $tdata->{'fields'}{ $b }{'order'}
+ } keys %{ $tdata->{'fields'} };
+
+ for my $fname ( @fields ) {
+ my $fdata = $tdata->{'fields'}{ $fname };
+ next if $fdata->{'drop'};
+ my $field = $table->add_field(
+ name => $fdata->{'name'},
+ data_type => $fdata->{'data_type'},
+ size => $fdata->{'size'},
+ default_value => $fdata->{'default'},
+ is_auto_increment => $fdata->{'is_auto_increment'},
+ is_nullable => $fdata->{'is_nullable'},
+ comments => $fdata->{'comments'},
+ ) or die $table->error;
+
+ $table->primary_key( $field->name ) if $fdata->{'is_primary_key'};
+
+ for my $cdata ( @{ $fdata->{'constraints'} } ) {
+ next unless $cdata->{'type'} eq 'foreign_key';
+ $cdata->{'fields'} ||= [ $field->name ];
+ push @{ $tdata->{'constraints'} }, $cdata;
+ }
+ }
+
+ for my $idata ( @{ $tdata->{'indices'} || [] } ) {
+ my $index = $table->add_index(
+ name => $idata->{'name'},
+ type => uc $idata->{'type'},
+ fields => $idata->{'fields'},
+ ) or die $table->error . ' ' . $table->name;
+ }
+
+ for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
+ my $constraint = $table->add_constraint(
+ name => $cdata->{'name'},
+ type => $cdata->{'type'},
+ fields => $cdata->{'fields'},
+ reference_table => $cdata->{'reference_table'},
+ reference_fields => $cdata->{'reference_fields'},
+ match_type => $cdata->{'match_type'} || '',
+ on_delete => $cdata->{'on_delete'} || $cdata->{'on_delete_do'},
+ on_update => $cdata->{'on_update'} || $cdata->{'on_update_do'},
+ expression => $cdata->{'expression'},
+ ) or die "Can't add constraint of type '" .
+ $cdata->{'type'} . "' to table '" . $table->name .
+ "': " . $table->error;
+ }
+ }
+
+ return 1;
}
1;
-#-----------------------------------------------------
-# Where man is not nature is barren.
-# William Blake
-#-----------------------------------------------------
+# -------------------------------------------------------------------
+# Rescue the drowning and tie your shoestrings.
+# Henry David Thoreau
+# -------------------------------------------------------------------
=pod
-=head1 AUTHOR
+=head1 AUTHORS
Ken Y. Clark E<lt>kclark@cpan.orgE<gt>,
-Chris Mungall
+Allen Day E<lt>allenday@ucla.eduE<gt>.
=head1 SEE ALSO
projects / dbsrgits/SQL-Translator.git / blobdiff