package SQL::Translator::Parser::PostgreSQL;
# -------------------------------------------------------------------
-# $Id: PostgreSQL.pm,v 1.50 2007-11-13 19:25:04 mwz444 Exp $
-# -------------------------------------------------------------------
-# Copyright (C) 2002-4 SQLFairy Authors
+# 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
use strict;
use vars qw[ $DEBUG $VERSION $GRAMMAR @EXPORT_OK ];
-$VERSION = sprintf "%d.%02d", q$Revision: 1.50 $ =~ /(\d+)\.(\d+)/;
+$VERSION = '1.59';
$DEBUG = 0 unless defined $DEBUG;
use Data::Dumper;
$::RD_WARN = 1; # Enable warnings. This will warn on unused rules &c.
$::RD_HINT = 1; # Give out hints to help fix problems.
-my $parser; # should we do this? There's no programmic way to
- # change the grammar, so I think this is safe.
-
$GRAMMAR = q!
-{ my ( %tables, $table_order, $field_order, @table_comments) }
+{ my ( %tables, @views, $table_order, $field_order, @table_comments) }
#
# The "eofile" rule makes the parser fail if any "statement" rule
# 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 } }
eofile : /^\Z/
set : /set/i /[^;]*/ ';'
-revoke : /revoke/i WORD(s /,/) /on/i TABLE(?) table_name /from/i name_with_opt_quotes(s /,/) ';'
+revoke : /revoke/i WORD(s /,/) /on/i TABLE(?) table_id /from/i name_with_opt_quotes(s /,/) ';'
{
- my $table_info = $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'} }, {
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 /,/) ';'
+grant : /grant/i WORD(s /,/) /on/i TABLE(?) table_id /to/i name_with_opt_quotes(s /,/) ';'
{
- my $table_info = $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'} }, {
nonstring : /[^;\'"]+/
-statement_body : (string | nonstring)(s?)
+statement_body : string | nonstring
-insert : /insert/i statement_body ';'
+insert : /insert/i statement_body(s?) ';'
-update : /update/i statement_body ';'
+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_info = $item{'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 @constraints;
- for my $definition ( @{ $item[4] } ) {
+ for my $definition ( @{ $item[6] } ) {
if ( $definition->{'supertype'} eq 'field' ) {
my $field_name = $definition->{'name'};
$tables{ $table_name }{'fields'}{ $field_name } =
}
}
- for my $option ( @{ $item[6] } ) {
+ 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(?) ';'
+create : CREATE unique(?) /(index|key)/i index_name /on/i table_id using_method(?) '(' field_name(s /,/) ')' where_predicate(?) ';'
{
- my $table_info = $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 }{'indices'} },
method => $item{'using_method'}[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],
+ }
}
#
push @table_comments, $comment;
}
-comment_on_table : /comment/i /on/i /table/i table_name /is/i comment_phrase ';'
+comment_on_table : /comment/i /on/i /table/i table_id /is/i comment_phrase ';'
{
- my $table_info = $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 }{'comments'} }, $item{'comment_phrase'};
field_meta : default_val
| column_constraint
+view_fields : '(' field_name(s /,/) ')'
+ { $return = join (',', @{$item[2]} ) }
+
column_constraint : constraint_name(?) column_constraint_type deferrable(?) deferred(?)
{
my $desc = $item{'column_constraint_type'};
/check/i '(' /[^)]+/ ')'
{ $return = { type => 'check', expression => $item[3] } }
|
- /references/i table_name parens_word_list(?) match_type(?) key_action(s?)
+ /references/i table_id parens_word_list(?) match_type(?) key_action(s?)
{
- my $table_info = $item{'table_name'};
+ 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 );
}
}
-table_name : schema_qualification(?) name_with_opt_quotes {
- $return = { schema_name => $item[1], table_name => $item[2] }
+table_id : schema_qualification(?) name_with_opt_quotes {
+ $return = { schema_name => $item[1][0], table_name => $item[2] }
+}
+
+view_id : schema_qualification(?) name_with_opt_quotes {
+ $return = { schema_name => $item[1][0], view_name => $item[2] }
+}
+
+view_target : /select|with/i /[^;]+/ {
+ $return = "$item[1] $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]"
}
- schema_qualification : name_with_opt_quotes '.'
+view_target_spec :
+
+schema_qualification : name_with_opt_quotes '.'
schema_name : name_with_opt_quotes
double_quote: /"/
-index_name : WORD
+index_name : name_with_opt_quotes
data_type : pg_data_type parens_value_list(?)
{
parens_value_list : '(' VALUE(s /,/) ')'
{ $item[2] }
-parens_word_list : '(' WORD(s /,/) ')'
+
+parens_word_list : '(' name_with_opt_quotes(s /,/) ')'
{ $item[2] }
field_size : '(' num_range ')' { $item{'num_range'} }
my @comments = ( @{ $item[1] }, @{ $item[-1] } );
$return = {
- name => $item{'constraint_name'}[0] || '',
+ name => $item[2][0] || '',
supertype => 'constraint',
type => $type,
fields => $type ne 'check' ? $fields : [],
}
}
|
- /foreign key/i '(' name_with_opt_quotes(s /,/) ')' /references/i table_name parens_word_list(?) match_type(?) key_action(s?)
+ /foreign key/i '(' name_with_opt_quotes(s /,/) ')' /references/i table_id parens_word_list(?) match_type(?) key_action(s?)
{
my ( $on_delete, $on_update );
for my $action ( @{ $item[9] || [] } ) {
|
/set default/i { $return = 'set default' }
-alter : alter_table table_name add_column field ';'
+alter : alter_table table_id add_column field ';'
{
my $field_def = $item[4];
$tables{ $item[2]->{'table_name'} }{'fields'}{ $field_def->{'name'} } = {
1;
}
-alter : alter_table table_name ADD table_constraint ';'
+alter : alter_table table_id ADD table_constraint ';'
{
my $table_name = $item[2]->{'table_name'};
my $constraint = $item[4];
1;
}
-alter : alter_table table_name drop_column NAME restrict_or_cascade(?) ';'
+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_name alter_column NAME alter_default_val ';'
+alter : alter_table table_id alter_column NAME alter_default_val ';'
{
$tables{ $item[2]->{'table_name'} }{'fields'}{ $item[4] }{'default'} =
$item[5]->{'value'};
#
# These will just parse for now but won't affect the structure. - ky
#
-alter : alter_table table_name /rename/i /to/i NAME ';'
+alter : alter_table table_id /rename/i /to/i NAME ';'
{ 1 }
-alter : alter_table table_name alter_column NAME SET /statistics/i INTEGER ';'
+alter : alter_table table_id alter_column NAME SET /statistics/i INTEGER ';'
{ 1 }
-alter : alter_table table_name alter_column NAME SET /storage/i storage_type ';'
+alter : alter_table table_id alter_column NAME SET /storage/i storage_type ';'
{ 1 }
-alter : alter_table table_name rename_column NAME /to/i NAME ';'
+alter : alter_table table_id rename_column NAME /to/i NAME ';'
{ 1 }
-alter : alter_table table_name DROP /constraint/i NAME restrict_or_cascade ';'
+alter : alter_table table_id DROP /constraint/i NAME restrict_or_cascade ';'
{ 1 }
-alter : alter_table table_name /owner/i /to/i NAME ';'
+alter : alter_table table_id /owner/i /to/i NAME ';'
{ 1 }
alter : alter_sequence NAME /owned/i /by/i column_name ';'
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'} }
# 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 ';'
+alter : alter_table table_id alter_column NAME alter_nullable ';'
{
# my $table_name = $item[2]->{'table_name'};
# my $field_name = $item[4];
create_index : CREATE /index/i
-default_val : DEFAULT /(\d+|'[^']*'|\w+\(.*?\))|\w+/
+default_val : DEFAULT /(\d+|'[^']*'|\w+\(.*\))|\w+/
{
my $val = defined $item[2] ? $item[2] : '';
$val =~ s/^'|'$//g;
TABLE : /table/i
+VIEW : /view/i
+
SCHEMA : /schema/i
SEMICOLON : /\s*;\n?/
# -------------------------------------------------------------------
sub parse {
my ( $translator, $data ) = @_;
- $parser ||= Parse::RecDescent->new($GRAMMAR);
+ my $parser = Parse::RecDescent->new($GRAMMAR);
$::RD_TRACE = $translator->trace ? 1 : undef;
$DEBUG = $translator->debug;
my $schema = $translator->schema;
my @tables = sort {
- ( $result->{ $a }{'order'} || 0 ) <=> ( $result->{ $b }{'order'} || 0 )
- } keys %{ $result };
+ ( $result->{tables}{ $a }{'order'} || 0 ) <=> ( $result->{tables}{ $b }{'order'} || 0 )
+ } keys %{ $result->{tables} };
for my $table_name ( @tables ) {
- my $tdata = $result->{ $table_name };
+ 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 {
name => $idata->{'name'},
type => uc $idata->{'type'},
fields => $idata->{'fields'},
- ) or die $table->error;
+ ) or die $table->error . ' ' . $table->name;
}
for my $cdata ( @{ $tdata->{'constraints'} || [] } ) {
}
}
+ 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};
+ }
+
return 1;
}
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