package SQL::Translator::Parser::PostgreSQL;
-# -------------------------------------------------------------------
-# $Id: PostgreSQL.pm,v 1.9 2003-02-26 05:17:21 kycl4rk Exp $
-# -------------------------------------------------------------------
-# Copyright (C) 2003 Ken Y. Clark <kclark@cpan.org>,
-# Allen Day <allenday@users.sourceforge.net>,
-# darren chamberlain <darren@cpan.org>,
-# Chris Mungall <cjm@fruitfly.org>
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; version 2.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-# 02111-1307 USA
-# -------------------------------------------------------------------
-
=head1 NAME
SQL::Translator::Parser::PostgreSQL - parser for PostgreSQL
=head1 DESCRIPTION
-The grammar was started from the MySQL parsers. Here is the description
+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_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 ]
+ [ 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 [, ... ] )
+ FOREIGN KEY ( column_name [, ... ] )
REFERENCES reftable [ ( refcolumn [, ... ] ) ]
- [ MATCH FULL | MATCH PARTIAL ]
+ [ MATCH FULL | MATCH PARTIAL ]
[ ON DELETE action ] [ ON UPDATE action ] }
- [ DEFERRABLE | NOT DEFERRABLE ]
+ [ DEFERRABLE | NOT DEFERRABLE ]
[ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
Index:
RENAME TO new_table
ALTER TABLE table
ADD table_constraint_definition
- ALTER TABLE [ ONLY ] table
+ ALTER TABLE [ ONLY ] table
DROP CONSTRAINT constraint { RESTRICT | CASCADE }
ALTER TABLE table
- OWNER TO new_owner
+ 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: 1.9 $ =~ /(\d+)\.(\d+)/;
-$DEBUG = 0 unless defined $DEBUG;
+use warnings;
-use Data::Dumper;
-use Parse::RecDescent;
-use Exporter;
-use base qw(Exporter);
+our $VERSION = '1.62';
-@EXPORT_OK = qw(parse);
+our $DEBUG;
+$DEBUG = 0 unless defined $DEBUG;
-# Enable warnings within the Parse::RecDescent module.
-$::RD_ERRORS = 1; # Make sure the parser dies when it encounters an error
-$::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c.
-$::RD_HINT = 1; # Give out hints to help fix problems.
+use Data::Dumper;
+use SQL::Translator::Utils qw/ddl_parser_instance/;
-my $parser; # should we do this? There's no programmic way to
- # change the grammar, so I think this is safe.
+use base qw(Exporter);
+our @EXPORT_OK = qw(parse);
-$GRAMMAR = q!
+our $GRAMMAR = <<'END_OF_GRAMMAR';
-{ our ( %tables, $table_order ) }
+{ my ( %tables, @views, @triggers, $table_order, $field_order, @table_comments) }
#
# The "eofile" rule makes the parser fail if any "statement" rule
-# fails. Otherwise, the first successful match by a "statement"
+# 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 }
+startrule : statement(s) eofile {
+ {
+ tables => \%tables,
+ views => \@views,
+ triggers => \@triggers,
+ }
+}
eofile : /^\Z/
statement : create
+ | comment_on_table
+ | comment_on_column
+ | comment_on_other
| comment
| alter
| grant
| revoke
| drop
+ | insert
| connect
+ | update
| set
+ | select
+ | copy
+ | readin_symbol
+ | commit
| <error>
-connect : /^\s*\\\connect.*\n/
+commit : /commit/i ';'
-set : /SET/ /[^;]*/ ';'
+connect : /^\s*\\connect.*\n/
-revoke : /revoke/i WORD(s /,/) /on/i table_name /from/i name_with_opt_quotes(s /,/) ';'
+set : /set/i /[^;]*/ ';'
+
+revoke : /revoke/i WORD(s /,/) /on/i TABLE(?) table_id /from/i NAME(s /,/) ';'
{
- my $table_name = $item{'table_name'};
+ my $table_info = $item{'table_id'};
+ 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[6],
+ users => $item[7],
}
}
-grant : /grant/i WORD(s /,/) /on/i table_name /to/i name_with_opt_quotes(s /,/) ';'
+revoke : /revoke/i WORD(s /,/) /on/i SCHEMA(?) schema_name /from/i NAME(s /,/) ';'
+ { 1 }
+
+grant : /grant/i WORD(s /,/) /on/i TABLE(?) table_id /to/i NAME(s /,/) ';'
{
- my $table_name = $item{'table_name'};
+ my $table_info = $item{'table_id'};
+ 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[6],
+ users => $item[7],
}
}
+grant : /grant/i WORD(s /,/) /on/i SCHEMA(?) schema_name /to/i NAME(s /,/) ';'
+ { 1 }
+
drop : /drop/i /[^;]*/ ';'
+string :
+ /'(\.|''|[^\\'])*'/
+
+nonstring : /[^;\'"]+/
+
+statement_body : string | nonstring
+
+insert : /insert/i statement_body(s?) ';'
+
+update : /update/i statement_body(s?) ';'
+
#
# Create table.
#
-create : create_table table_name '(' create_definition(s /,/) ')' table_option(s?) ';'
+create : CREATE temporary(?) TABLE table_id '(' 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 $table_info = $item{'table_id'};
+ 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 $i = 1;
my @constraints;
- for my $definition ( @{ $item[4] } ) {
- if ( $definition->{'type'} eq 'field' ) {
+ for my $definition ( @{ $item[6] } ) {
+ if ( $definition->{'supertype'} eq 'field' ) {
my $field_name = $definition->{'name'};
- $tables{ $table_name }{'fields'}{ $field_name } =
- { %$definition, order => $i };
- $i++;
-
- if ( $definition->{'is_primary_key'} ) {
- push @{ $tables{ $table_name }{'indices'} }, {
- type => 'primary_key',
- fields => [ $field_name ],
- };
- }
+ $tables{ $table_name }{'fields'}{ $field_name } =
+ { %$definition, order => $field_order++ };
- for my $constraint ( @{ $definition->{'constaints'} || [] } ) {
- $constraint->{'fields' } = [ $field_name ];
- push @{$tables{ $table_name }{'constraints'}}, $constraint;
+ for my $constraint ( @{ $definition->{'constraints'} || [] } ) {
+ $constraint->{'fields'} = [ $field_name ];
+ push @{ $tables{ $table_name }{'constraints'} },
+ $constraint;
}
}
- elsif ( $definition->{'type'} eq 'constraint' ) {
- $definition->{'type'} = $definition->{'constraint_type'};
+ elsif ( $definition->{'supertype'} eq 'constraint' ) {
push @{ $tables{ $table_name }{'constraints'} }, $definition;
}
- else {
+ elsif ( $definition->{'supertype'} eq 'index' ) {
push @{ $tables{ $table_name }{'indices'} }, $definition;
}
}
- for my $option ( @{ $item[6] } ) {
- $tables{ $table_name }{'table_options'}{ $option->{'type'} } =
+ for my $option ( @{ $item[8] } ) {
+ $tables{ $table_name }{'table_options(s?)'}{ $option->{'type'} } =
$option;
}
1;
}
-#
-# Create index.
-#
-create : /create/i unique(?) /(index|key)/i index_name /on/i table_name using_method(?) '(' field_name(s /,/) ')' where_predicate(?) ';'
+create : CREATE unique(?) /(index|key)/i index_name /on/i table_id using_method(?) '(' field_name(s /,/) ')' where_predicate(?) ';'
{
- push @{ $tables{ $item{'table_name'} }{'indices'} },
+ my $table_info = $item{'table_id'};
+ my $schema_name = $table_info->{'schema_name'};
+ my $table_name = $table_info->{'table_name'};
+ push @{ $tables{ $table_name }{'indices'} },
{
- name => $item{'index_name'},
- type => $item{'unique'}[0] ? 'unique' : 'normal',
- fields => $item[9],
- method => $item{'using_method'}[0],
+ name => $item{'index_name'},
+ supertype => $item{'unique'}[0] ? 'constraint' : 'index',
+ type => $item{'unique'}[0] ? 'unique' : 'normal',
+ fields => $item[9],
+ method => $item{'using_method(?)'}[0],
+ where => $item{'where_predicate(?)'}[0],
}
;
}
+create : CREATE or_replace(?) temporary(?) VIEW view_id view_fields(?) /AS/i view_target ';'
+ {
+ push @views, {
+ schema_name => $item{view_id}{schema_name},
+ view_name => $item{view_id}{view_name},
+ sql => $item{view_target},
+ fields => $item[6],
+ is_temporary => $item[3][0],
+ }
+ }
+
+trigger_name : NAME
+
+trigger_scope : /FOR/i /EACH/i /(ROW|STATEMENT)/i { $return = lc $1 }
+
+before_or_after : /(before|after)/i { $return = lc $1 }
+
+trigger_action : /.+/
+
+database_event : /insert|update|delete/i
+database_events : database_event(s /OR/)
+
+create : CREATE /TRIGGER/i trigger_name before_or_after database_events /ON/i table_id trigger_scope(?) trigger_action
+ {
+ # Hack to pass roundtrip tests which have trigger statements terminated by double semicolon
+ # and expect the returned data to have the same
+ my $action = $item{trigger_action};
+ $action =~ s/;$//;
+
+ push @triggers, {
+ name => $item{trigger_name},
+ perform_action_when => $item{before_or_after},
+ database_events => $item{database_events},
+ on_table => $item{table_id}{table_name},
+ scope => $item{'trigger_scope(?)'}[0],
+ action => $action,
+ }
+ }
+
#
-# Create anything else (e.g., domain, function, etc.)
+# Create anything else (e.g., domain, etc.)
#
-create : /create/i WORD /[^;]+/ ';'
+create : CREATE WORD /[^;]+/ ';'
+ { @table_comments = (); }
using_method : /using/i WORD { $item[2] }
| 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;
+ }
-field : comment(s?) field_name data_type field_meta(s?) comment(s?)
+comment_on_table : /comment/i /on/i /table/i table_id /is/i comment_phrase ';'
{
- my ( $default, @constraints );
- for my $meta ( @{ $item[4] } ) {
- $default = $meta if $meta->{'meta_type'} eq 'default';
- push @constraints, $meta if $meta->{'meta_type'} eq 'constraint';
+ my $table_info = $item{'table_id'};
+ my $schema_name = $table_info->{'schema_name'};
+ my $table_name = $table_info->{'table_name'};
+ push @{ $tables{ $table_name }{'comments'} }, $item{'comment_phrase'};
+ }
+
+comment_on_column : /comment/i /on/i /column/i column_name /is/i comment_phrase ';'
+ {
+ 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";
}
+ }
+
+comment_on_other : /comment/i /on/i /\w+/ /\w+/ /is/i comment_phrase ';'
+ {
+ push(@table_comments, $item{'comment_phrase'});
+ }
+
+# [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
- my $null = ( grep { $_->{'type'} eq 'not_null' } @constraints ) ? 0 : 1;
+column_name : NAME '.' NAME
+ { $return = { table => $item[1], field => $item[3] } }
+
+comment_phrase : /null/i
+ { $return = 'NULL' }
+ | SQSTRING
+
+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 = {
- type => 'field',
- name => $item{'field_name'},
- data_type => $item{'data_type'}{'type'},
- size => $item{'data_type'}{'size'},
- list => $item{'data_type'}{'list'},
- null => $null,
- default => $default->{'value'},
- constraints => [ @constraints ],
- comments => [ @comments ],
- }
+ $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_comment : /^\s*(?:#|-{2})(.*)\n/
+ {
+ my $comment = $item[1];
+ $comment =~ s/^\s*(#|-*)\s*//;
+ $comment =~ s/\s*$//;
+ $return = $comment;
+ }
+
field_meta : default_val
- |
- column_constraint
+ | column_constraint
+
+view_fields : '(' field_name(s /,/) ')'
+ { $return = join (',', @{$item[2]} ) }
column_constraint : constraint_name(?) column_constraint_type deferrable(?) deferred(?)
{
my $expression = $desc->{'expression'} || '';
$return = {
- meta_type => 'constraint',
+ supertype => 'constraint',
name => $item{'constraint_name'}[0] || '',
type => $type,
expression => $type eq 'check' ? $expression : '',
- deferreable => $item{'deferrable'},
+ deferrable => $item{'deferrable'},
deferred => $item{'deferred'},
reference_table => $desc->{'reference_table'},
reference_fields => $desc->{'reference_fields'},
match_type => $desc->{'match_type'},
- on_delete_do => $desc->{'on_delete_do'},
- on_update_do => $desc->{'on_update_do'},
- }
+ on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'},
+ on_update => $desc->{'on_update'} || $desc->{'on_update_do'},
+ }
}
-constraint_name : /constraint/i name_with_opt_quotes { $item[2] }
+constraint_name : /constraint/i NAME { $item[2] }
column_constraint_type : /not null/i { $return = { type => 'not_null' } }
|
- /null/
+ /null/i
{ $return = { type => 'null' } }
|
- /unique/
+ /unique/i
{ $return = { type => 'unique' } }
|
- /primary key/i
+ /primary key/i
{ $return = { type => 'primary_key' } }
|
- /check/i '(' /[^)]+/ ')'
- { $return = { type => 'check', expression => $item[2] } }
+ /check/i '(' /[^)]+/ ')'
+ { $return = { type => 'check', expression => $item[3] } }
|
- /references/i table_name parens_value_list(?) match_type(?) on_delete_do(?) on_update_do(?)
+ /references/i table_id parens_word_list(?) match_type(?) key_action(s?)
{
+ my $table_info = $item{'table_id'};
+ 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 => $item[2],
- reference_fields => $item[3],
+ reference_table => $table_name,
+ reference_fields => $item[3][0],
match_type => $item[4][0],
- on_delete_do => $item[5][0],
- on_update_do => $item[6][0],
+ on_delete => $on_delete,
+ on_update => $on_update,
}
}
-table_name : name_with_opt_quotes
+table_id : schema_qualification(?) NAME {
+ $return = { schema_name => $item[1][0], table_name => $item[2] }
+}
+
+view_id : schema_qualification(?) NAME {
+ $return = { schema_name => $item[1][0], view_name => $item[2] }
+}
-field_name : name_with_opt_quotes
+view_target : /select|with/i /[^;]+/ {
+ $return = "$item[1] $item[2]";
+}
-name_with_opt_quotes : double_quote(?) NAME double_quote(?) { $item[2] }
+# SELECT views _may_ support outer parens, and we used to produce
+# such sql, although non-standard. Use ugly lookeahead to parse
+view_target : '(' /select/i / [^;]+ (?= \) ) /x ')' {
+ $return = "$item[2] $item[3]"
+}
+
+view_target_spec :
+
+schema_qualification : NAME '.'
+
+schema_name : NAME
+
+field_name : NAME
double_quote: /"/
-index_name : WORD
+index_name : NAME
+
+array_indicator : '[' ']'
+ { $return = $item[1].$item[2] }
+
+data_type : pg_data_type parens_value_list(?) array_indicator(?)
+ {
+ my $data_type = $item[1];
-data_type : pg_data_type parens_value_list(?)
- {
- my $type = $item[1];
+ $data_type->{type} .= $item[3][0] if $item[3][0];
#
# We can deduce some sizes from the data type's name.
#
- my $size;
- if ( ref $type eq 'ARRAY' ) {
- $size = [ $type->[1] ];
- $type = $type->[0];
- }
- else {
- $size = $item[2][0] || '';
+ if ( my @size = @{$item[2]} ) {
+ $data_type->{'size'} = (@size == 1 ? $size[0] : \@size);
}
- $return = {
- type => $type,
- size => $size,
- }
+ $return = $data_type;
}
pg_data_type :
- /(bigint|int8|bigserial|serial8)/ { $return = [ 'integer', 8 ] }
+ /(bigint|int8)/i
+ {
+ $return = {
+ type => 'integer',
+ size => 20,
+ };
+ }
|
- /(smallint|int2)/ { $return = [ 'integer', 2 ] }
+ /(smallint|int2)/i
+ {
+ $return = {
+ type => 'integer',
+ size => 5,
+ };
+ }
|
- /int(eger)?|int4/ { $return = [ 'integer', 4 ] }
+ /interval/i
+ {
+ $return = { type => 'interval' };
+ }
|
- /(double precision|float8?)/ { $return = [ 'float', 8 ] }
+ /(integer|int4?)/i # interval must come before this
+ {
+ $return = {
+ type => 'integer',
+ size => 10,
+ };
+ }
|
- /(real|float4)/ { $return = [ 'real', 4 ] }
+ /(real|float4)/i
+ {
+ $return = {
+ type => 'real',
+ size => 10,
+ };
+ }
|
- /serial4?/ { $return = [ 'serial', 4 ] }
+ /(double precision|float8?)/i
+ {
+ $return = {
+ type => 'float',
+ size => 20,
+ };
+ }
|
- /bigserial/ { $return = [ 'serial', 8 ] }
+ /(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' };
+ }
|
- /(bit varying|varbit)/ { $return = 'varbit' }
+ /char(acter)?/i
+ {
+ $return = { type => 'char' };
+ }
|
- /character varying/ { $return = 'varchar' }
+ /bool(ean)?/i
+ {
+ $return = { type => 'boolean' };
+ }
|
- /char(acter)?/ { $return = 'char' }
+ /bytea/i
+ {
+ $return = { type => 'bytea' };
+ }
|
- /bool(ean)?/ { $return = 'boolean' }
+ / ( timestamp (?:tz)? ) (?: \( \d \) )? ( \s with (?:out)? \s time \s zone )? /ix
+ {
+ $return = { type => 'timestamp' . ($2||'') };
+ }
|
- /(bytea|binary data)/ { $return = 'binary' }
+ / ( time (?:tz)? ) (?: \( \d \) )? ( \s with (?:out)? \s time \s zone )? /ix
+ {
+ $return = { type => 'time' . ($2||'') };
+ }
|
- /timestampz?/ { $return = 'timestamp' }
+ /text/i
+ {
+ $return = {
+ type => 'text',
+ size => 64_000,
+ };
+ }
|
- /(bit|box|cidr|circle|date|inet|interval|line|lseg|macaddr|money|numeric|decimal|path|point|polygon|text|time|varchar)/
- { $item[1] }
+ /(bit|box|cidr|circle|date|inet|line|lseg|macaddr|money|numeric|decimal|path|point|polygon|varchar|json|hstore|uuid)/i
+ {
+ $return = { type => $item[1] };
+ }
parens_value_list : '(' VALUE(s /,/) ')'
{ $item[2] }
-parens_word_list : '(' WORD(s /,/) ')'
+
+parens_word_list : '(' NAME(s /,/) ')'
{ $item[2] }
field_size : '(' num_range ')' { $item{'num_range'} }
my @comments = ( @{ $item[1] }, @{ $item[-1] } );
$return = {
- name => $item{'constraint_name'}[0] || '',
- type => 'constraint',
- constraint_type => $type,
+ name => $item[2][0] || '',
+ supertype => 'constraint',
+ type => $type,
fields => $type ne 'check' ? $fields : [],
expression => $type eq 'check' ? $expression : '',
- deferreable => $item{'deferrable'},
+ deferrable => $item{'deferrable'},
deferred => $item{'deferred'},
reference_table => $desc->{'reference_table'},
reference_fields => $desc->{'reference_fields'},
- match_type => $desc->{'match_type'}[0],
- on_delete_do => $desc->{'on_delete_do'},
- on_update_do => $desc->{'on_update_do'},
+ match_type => $desc->{'match_type'},
+ on_delete => $desc->{'on_delete'} || $desc->{'on_delete_do'},
+ on_update => $desc->{'on_update'} || $desc->{'on_update_do'},
comments => [ @comments ],
- }
+ }
}
-table_constraint_type : /primary key/i '(' name_with_opt_quotes(s /,/) ')'
- {
+table_constraint_type : /primary key/i '(' NAME(s /,/) ')'
+ {
$return = {
type => 'primary_key',
fields => $item[3],
}
}
|
- /unique/i '(' name_with_opt_quotes(s /,/) ')'
- {
+ /unique/i '(' NAME(s /,/) ')'
+ {
$return = {
type => 'unique',
fields => $item[3],
}
}
|
- /check/ '(' /(.+)/ ')'
+ /check/i '(' /[^)]+/ ')'
{
$return = {
type => 'check',
}
}
|
- /foreign key/i '(' name_with_opt_quotes(s /,/) ')' /references/i table_name parens_word_list(?) match_type(?) on_delete_do(?) on_update_do(?)
+ /foreign key/i '(' NAME(s /,/) ')' /references/i table_id 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],
+ reference_table => $item[6]->{'table_name'},
reference_fields => $item[7][0],
match_type => $item[8][0],
- on_delete_do => $item[9][0],
- on_update_do => $item[10][0],
+ on_delete => $on_delete || '',
+ on_update => $on_update || '',
}
}
-deferrable : /not/i /deferrable/i
- {
+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_type : /match/i /partial|full|simple/i { $item[2] }
+
+key_action : key_delete
|
- /match partial/i { 'match_partial' }
+ key_update
-on_delete_do : /on delete/i WORD(s)
- { $item[2] }
+key_delete : /on delete/i key_mutation
+ {
+ $return = {
+ type => 'delete',
+ action => $item[2],
+ };
+ }
-on_update_do : /on update/i WORD(s)
- { $item[2] }
+key_update : /on update/i key_mutation
+ {
+ $return = {
+ type => 'update',
+ action => $item[2],
+ };
+ }
+
+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/i table_constraint ';'
- {
- my $table_name = $item[2];
+alter : alter_table table_id add_column field ';'
+ {
+ my $field_def = $item[4];
+ $tables{ $item[2]->{'table_name'} }{'fields'}{ $field_def->{'name'} } = {
+ %$field_def, order => $field_order++
+ };
+ 1;
+ }
+
+alter : alter_table table_id ADD table_constraint ';'
+ {
+ my $table_name = $item[2]->{'table_name'};
my $constraint = $item[4];
- $constraint->{'type'} = $constraint->{'constraint_type'};
push @{ $tables{ $table_name }{'constraints'} }, $constraint;
+ 1;
+ }
+
+alter : alter_table table_id drop_column NAME restrict_or_cascade(?) ';'
+ {
+ $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'drop'} = 1;
+ 1;
+ }
+
+alter : alter_table table_id alter_column NAME alter_default_val ';'
+ {
+ $tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'default'} =
+ $item[5]->{'value'};
+ 1;
+ }
+
+#
+# These will just parse for now but won't affect the structure. - ky
+#
+alter : alter_table table_id /rename/i /to/i NAME ';'
+ { 1 }
+
+alter : alter_table table_id alter_column NAME SET /statistics/i INTEGER ';'
+ { 1 }
+
+alter : alter_table table_id alter_column NAME SET /storage/i storage_type ';'
+ { 1 }
+
+alter : alter_table table_id rename_column NAME /to/i NAME ';'
+ { 1 }
+
+alter : alter_table table_id DROP /constraint/i NAME restrict_or_cascade ';'
+ { 1 }
+
+alter : alter_table table_id /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
+ {
+ 1;
+ }
+
+or_replace : /or replace/i
+
+alter_default_val : SET default_val
+ {
+ $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_id 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;
+ }
+
+alter_nullable : SET not_null
+ {
+ $return = { is_nullable => 0 }
+ }
+ | DROP not_null
+ {
+ $return = { is_nullable => 1 }
}
-alter_table : /alter/i /table/i only(?)
+not_null : /not/i /null/i
-only : /only/i
+not : /not/i
-create_table : /create/i /table/i
+add_column : ADD COLUMN(?)
-create_index : /create/i /index/i
+alter_table : ALTER TABLE ONLY(?)
-default_val : /default/i /(?:')?[\w\d.-]*(?:')?/
- {
- my $val = $item[2] || '';
- $val =~ s/'//g;
+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 DEFAULT_VALUE ( '::' data_type )(?)
+ {
+ my $val = $item[2];
+ $val =~ s/^\((\d+)\)\z/$1/; # for example (0)::smallint
$return = {
- meta_type => 'default',
+ supertype => 'constraint',
+ type => 'default',
value => $val,
}
}
+ | /null/i
+ {
+ $return = {
+ supertype => 'constraint',
+ type => 'default',
+ value => 'NULL',
+ }
+ }
+
+DEFAULT_VALUE : VALUE
+ | /\w+\(.*\)/
+ | /\w+/
+ | /\(\d+\)/
name_with_opt_paren : NAME parens_value_list(s?)
{ $item[2][0] ? "$item[1]($item[2][0][0])" : $item[1] }
key : /key/i | /index/i
-table_option : /inherits/i '(' name_with_opt_quotes(s /,/) ')'
- {
+table_option : /inherits/i '(' NAME(s /,/) ')'
+ {
$return = { type => 'inherits', table_name => $item[3] }
}
|
$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
+
+VIEW : /view/i
+
+SCHEMA : /schema/i
+
SEMICOLON : /\s*;\n?/
+SEQUENCE : /sequence/i
+
+SELECT : /select/i
+
+COPY : /copy/i
+
+INTEGER : /\d+/
+
WORD : /\w+/
DIGITS : /\d+/
COMMA : ','
-NAME : "`" /\w+/ "`"
- { $item[2] }
+SET : /set/i
+
+NAME : DQSTRING
| /\w+/
- { $item[1] }
- | /[\$\w]+/
- { $item[1] }
-
-VALUE : /[-+]?\.?\d+(?:[eE]\d+)?/
- { $item[1] }
- | /'.*?'/ # XXX doesn't handle embedded quotes
- { $item[1] }
- | /NULL/
+
+DQSTRING : '"' <skip: ''> /((?:[^"]|"")+)/ '"'
+ { ($return = $item[3]) =~ s/""/"/g; }
+
+SQSTRING : "'" <skip: ''> /((?:[^']|'')*)/ "'"
+ { ($return = $item[3]) =~ s/''/'/g }
+
+DOLLARSTRING : /\$[^\$]*\$/ <skip: ''> /.*?(?=\Q$item[1]\E)/s "$item[1]"
+ { $return = $item[3]; }
+
+VALUE : /[-+]?\d*\.?\d+(?:[eE]\d+)?/
+ | SQSTRING
+ | DOLLARSTRING
+ | /null/i
{ 'NULL' }
-!;
+END_OF_GRAMMAR
-# -------------------------------------------------------------------
sub parse {
my ( $translator, $data ) = @_;
- $parser ||= Parse::RecDescent->new($GRAMMAR);
- $::RD_TRACE = $translator->trace ? 1 : undef;
- $DEBUG = $translator->debug;
+ # Enable warnings within the Parse::RecDescent module.
+ local $::RD_ERRORS = 1 unless defined $::RD_ERRORS; # Make sure the parser dies when it encounters an error
+ local $::RD_WARN = 1 unless defined $::RD_WARN; # Enable warnings. This will warn on unused rules &c.
+ local $::RD_HINT = 1 unless defined $::RD_HINT; # Give out hints to help fix problems.
- unless (defined $parser) {
- return $translator->error("Error instantiating Parse::RecDescent ".
- "instance: Bad grammer");
- }
+ local $::RD_TRACE = $translator->trace ? 1 : undef;
+ local $DEBUG = $translator->debug;
+
+ my $parser = ddl_parser_instance('PostgreSQL');
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->{tables}{ $a }{'order'} || 0 ) <=> ( $result->{tables}{ $b }{'order'} || 0 )
+ } keys %{ $result->{tables} };
+
+ for my $table_name ( @tables ) {
+ my $tdata = $result->{tables}{ $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 @options = ();
+ push @options, { using => $idata->{'method'} } if $idata->{method};
+ push @options, { where => $idata->{'where'} } if $idata->{where};
+ my $index = $table->add_index(
+ name => $idata->{'name'},
+ type => uc $idata->{'type'},
+ fields => $idata->{'fields'},
+ options => \@options
+ ) 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;
+ }
+ }
+
+ for my $vinfo (@{$result->{views}}) {
+ my $sql = $vinfo->{sql};
+ $sql =~ s/\A\s+|\s+\z//g;
+ my $view = $schema->add_view (
+ name => $vinfo->{view_name},
+ sql => $sql,
+ fields => $vinfo->{fields},
+ );
+
+ $view->extra ( temporary => 1 ) if $vinfo->{is_temporary};
+ }
+
+ for my $trigger (@{ $result->{triggers} }) {
+ $schema->add_trigger( %$trigger );
+ }
+
+ return 1;
}
1;
-#-----------------------------------------------------
-# Where man is not nature is barren.
-# William Blake
-#-----------------------------------------------------
+# -------------------------------------------------------------------
+# Rescue the drowning and tie your shoestrings.
+# Henry David Thoreau
+# -------------------------------------------------------------------
=pod
=head1 AUTHORS
Ken Y. Clark E<lt>kclark@cpan.orgE<gt>,
-Allen Day <allenday@users.sourceforge.net>.
+Allen Day E<lt>allenday@ucla.eduE<gt>.
=head1 SEE ALSO
projects / dbsrgits/SQL-Translator.git / blobdiff