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package DBIx::Class::Schema::Loader::DBI::Pg; |
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1061
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use strict; |
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use warnings; |
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use base 'DBIx::Class::Schema::Loader::DBI::Component::QuotedDefault'; |
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use mro 'c3'; |
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our $VERSION = '0.07050'; |
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=head1 NAME |
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DBIx::Class::Schema::Loader::DBI::Pg - DBIx::Class::Schema::Loader::DBI |
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PostgreSQL Implementation. |
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=head1 DESCRIPTION |
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See L and L. |
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=cut |
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sub _setup { |
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my $self = shift; |
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$self->next::method(@_); |
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$self->{db_schema} ||= ['public']; |
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if (not defined $self->preserve_case) { |
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$self->preserve_case(0); |
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} |
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elsif ($self->preserve_case) { |
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$self->schema->storage->sql_maker->quote_char('"'); |
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$self->schema->storage->sql_maker->name_sep('.'); |
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} |
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} |
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sub _system_schemas { |
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my $self = shift; |
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return ($self->next::method(@_), 'pg_catalog'); |
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} |
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my %pg_rules = ( |
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a => 'NO ACTION', |
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r => 'RESTRICT', |
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c => 'CASCADE', |
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n => 'SET NULL', |
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d => 'SET DEFAULT', |
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); |
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sub _table_fk_info { |
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my ($self, $table) = @_; |
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my $sth = $self->dbh->prepare_cached(<<"EOF"); |
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select constr.conname, to_ns.nspname, to_class.relname, from_col.attname, to_col.attname, |
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constr.confdeltype, constr.confupdtype, constr.condeferrable |
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from pg_catalog.pg_constraint constr |
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join pg_catalog.pg_namespace from_ns on constr.connamespace = from_ns.oid |
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join pg_catalog.pg_class from_class on constr.conrelid = from_class.oid and from_class.relnamespace = from_ns.oid |
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join pg_catalog.pg_class to_class on constr.confrelid = to_class.oid |
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join pg_catalog.pg_namespace to_ns on to_class.relnamespace = to_ns.oid |
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-- can't do unnest() until 8.4, so join against a series table instead |
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join pg_catalog.generate_series(1, pg_catalog.current_setting('max_index_keys')::integer) colnum(i) |
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on colnum.i <= pg_catalog.array_upper(constr.conkey,1) |
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join pg_catalog.pg_attribute to_col |
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on to_col.attrelid = constr.confrelid |
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and to_col.attnum = constr.confkey[colnum.i] |
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join pg_catalog.pg_attribute from_col |
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on from_col.attrelid = constr.conrelid |
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and from_col.attnum = constr.conkey[colnum.i] |
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where from_ns.nspname = ? |
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and from_class.relname = ? |
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and from_class.relkind = 'r' |
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and constr.contype = 'f' |
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order by constr.conname, colnum.i |
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EOF |
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$sth->execute($table->schema, $table->name); |
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my %rels; |
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while (my ($fk, $remote_schema, $remote_table, $col, $remote_col, |
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$delete_rule, $update_rule, $is_deferrable) = $sth->fetchrow_array) { |
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push @{ $rels{$fk}{local_columns} }, $self->_lc($col); |
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push @{ $rels{$fk}{remote_columns} }, $self->_lc($remote_col); |
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$rels{$fk}{remote_table} = DBIx::Class::Schema::Loader::Table->new( |
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loader => $self, |
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name => $remote_table, |
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schema => $remote_schema, |
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) unless exists $rels{$fk}{remote_table}; |
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$rels{$fk}{attrs} ||= { |
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on_delete => $pg_rules{$delete_rule}, |
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on_update => $pg_rules{$update_rule}, |
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is_deferrable => $is_deferrable, |
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}; |
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} |
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return [ map { $rels{$_} } sort keys %rels ]; |
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} |
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sub _table_uniq_info { |
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my ($self, $table) = @_; |
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# Use the default support if available |
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return $self->next::method($table) |
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if $DBD::Pg::VERSION >= 1.50; |
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my @uniqs; |
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# Most of the SQL here is mostly based on |
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# Rose::DB::Object::Metadata::Auto::Pg, after some prodding from |
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# John Siracusa to use his superior SQL code :) |
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my $attr_sth = $self->{_cache}->{pg_attr_sth} ||= $self->dbh->prepare( |
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q{SELECT attname FROM pg_catalog.pg_attribute |
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WHERE attrelid = ? AND attnum = ?} |
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); |
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my $uniq_sth = $self->{_cache}->{pg_uniq_sth} ||= $self->dbh->prepare( |
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q{SELECT x.indrelid, i.relname, x.indkey |
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FROM |
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pg_catalog.pg_index x |
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JOIN pg_catalog.pg_class c ON c.oid = x.indrelid |
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JOIN pg_catalog.pg_class i ON i.oid = x.indexrelid |
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JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace |
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WHERE |
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x.indisunique = 't' AND |
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x.indpred IS NULL AND |
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c.relkind = 'r' AND |
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i.relkind = 'i' AND |
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n.nspname = ? AND |
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c.relname = ? |
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ORDER BY i.relname} |
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); |
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$uniq_sth->execute($table->schema, $table->name); |
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while(my $row = $uniq_sth->fetchrow_arrayref) { |
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my ($tableid, $indexname, $col_nums) = @$row; |
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$col_nums =~ s/^\s+//; |
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my @col_nums = split(/\s+/, $col_nums); |
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my @col_names; |
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foreach (@col_nums) { |
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$attr_sth->execute($tableid, $_); |
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my $name_aref = $attr_sth->fetchrow_arrayref; |
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push(@col_names, $self->_lc($name_aref->[0])) if $name_aref; |
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} |
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152
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# skip indexes with missing column names (e.g. expression indexes) |
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if(@col_names == @col_nums) { |
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push(@uniqs, [ $indexname => \@col_names ]); |
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} |
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} |
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158
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return \@uniqs; |
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} |
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161
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sub _table_comment { |
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my $self = shift; |
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my ($table) = @_; |
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165
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my $table_comment = $self->next::method(@_); |
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return $table_comment if $table_comment; |
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($table_comment) = $self->dbh->selectrow_array(<<'EOF', {}, $table->name, $table->schema); |
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SELECT pg_catalog.obj_description(oid) |
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FROM pg_catalog.pg_class |
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WHERE relname=? AND relnamespace=(SELECT oid FROM pg_catalog.pg_namespace WHERE nspname=?) |
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EOF |
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175
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return $table_comment |
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} |
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sub _column_comment { |
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my $self = shift; |
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my ($table, $column_number, $column_name) = @_; |
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183
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my $column_comment = $self->next::method(@_); |
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return $column_comment if $column_comment; |
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return $self->dbh->selectrow_array(<<'EOF', {}, $column_number, $table->name, $table->schema); |
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SELECT pg_catalog.col_description(oid, ?) |
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FROM pg_catalog.pg_class |
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WHERE relname=? AND relnamespace=(SELECT oid FROM pg_catalog.pg_namespace WHERE nspname=?) |
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EOF |
192
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} |
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194
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# Make sure data_type's that don't need it don't have a 'size' column_info, and |
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# set the correct precision for datetime and varbit types. |
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sub _columns_info_for { |
197
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my $self = shift; |
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my ($table) = @_; |
199
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200
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my ($result, $raw) = $self->next::method(@_); |
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202
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while (my ($col, $info) = each %$result) { |
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my $data_type = $info->{data_type}; |
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205
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# these types are fixed size |
206
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# XXX should this be a negative match? |
207
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if ($data_type =~ |
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0
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|
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|
|
|
|
|
0
|
|
|
|
|
|
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0
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0
|
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|
208
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|
|
/^(?:bigint|int8|bigserial|serial8|bool(?:ean)?|box|bytea|cidr|circle|date|double precision|float8|inet|integer|int|int4|line|lseg|macaddr|money|path|point|polygon|real|float4|smallint|int2|serial|serial4|text)\z/i) { |
209
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0
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|
delete $info->{size}; |
210
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|
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|
} |
211
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|
# for datetime types, check if it has a precision or not |
212
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|
elsif ($data_type =~ /^(?:interval|time|timestamp)\b/i) { |
213
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0
|
0
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|
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|
|
if (lc($data_type) eq 'timestamp without time zone') { |
|
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0
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214
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0
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|
$info->{data_type} = 'timestamp'; |
215
|
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|
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|
} |
216
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|
elsif (lc($data_type) eq 'time without time zone') { |
217
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0
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|
$info->{data_type} = 'time'; |
218
|
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|
} |
219
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220
|
0
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|
my ($precision) = $self->schema->storage->dbh |
221
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|
|
->selectrow_array(<name, $col); |
222
|
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|
SELECT datetime_precision |
223
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FROM information_schema.columns |
224
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|
WHERE table_name = ? and column_name = ? |
225
|
|
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|
|
|
|
EOF |
226
|
|
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|
227
|
0
|
0
|
0
|
|
|
|
if ($data_type =~ /^time\b/i) { |
|
|
0
|
0
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|
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|
|
228
|
0
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0
|
0
|
|
|
|
if ((not defined $precision) || $precision !~ /^\d/) { |
229
|
0
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|
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|
delete $info->{size}; |
230
|
|
|
|
|
|
|
} |
231
|
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|
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|
else { |
232
|
0
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|
|
|
my ($integer_datetimes) = $self->dbh |
233
|
|
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|
|
->selectrow_array('show integer_datetimes'); |
234
|
|
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|
|
|
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|
235
|
0
|
0
|
|
|
|
|
my $max_precision = |
236
|
|
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|
|
|
|
$integer_datetimes =~ /^on\z/i ? 6 : 10; |
237
|
|
|
|
|
|
|
|
238
|
0
|
0
|
|
|
|
|
if ($precision == $max_precision) { |
239
|
0
|
|
|
|
|
|
delete $info->{size}; |
240
|
|
|
|
|
|
|
} |
241
|
|
|
|
|
|
|
else { |
242
|
0
|
|
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|
|
|
$info->{size} = $precision; |
243
|
|
|
|
|
|
|
} |
244
|
|
|
|
|
|
|
} |
245
|
|
|
|
|
|
|
} |
246
|
|
|
|
|
|
|
elsif ((not defined $precision) || $precision !~ /^\d/ || $precision == 6) { |
247
|
0
|
|
|
|
|
|
delete $info->{size}; |
248
|
|
|
|
|
|
|
} |
249
|
|
|
|
|
|
|
else { |
250
|
0
|
|
|
|
|
|
$info->{size} = $precision; |
251
|
|
|
|
|
|
|
} |
252
|
|
|
|
|
|
|
} |
253
|
|
|
|
|
|
|
elsif ($data_type =~ /^(?:bit(?: varying)?|varbit)\z/i) { |
254
|
0
|
0
|
|
|
|
|
$info->{data_type} = 'varbit' if $data_type =~ /var/i; |
255
|
|
|
|
|
|
|
|
256
|
0
|
|
|
|
|
|
my ($precision) = $self->dbh->selectrow_array(<name, $col); |
257
|
|
|
|
|
|
|
SELECT character_maximum_length |
258
|
|
|
|
|
|
|
FROM information_schema.columns |
259
|
|
|
|
|
|
|
WHERE table_name = ? and column_name = ? |
260
|
|
|
|
|
|
|
EOF |
261
|
|
|
|
|
|
|
|
262
|
0
|
0
|
|
|
|
|
$info->{size} = $precision if $precision; |
263
|
|
|
|
|
|
|
|
264
|
0
|
0
|
0
|
|
|
|
$info->{size} = 1 if (not $precision) && lc($data_type) eq 'bit'; |
265
|
|
|
|
|
|
|
} |
266
|
|
|
|
|
|
|
elsif ($data_type =~ /^(?:numeric|decimal)\z/i && (my $size = $info->{size})) { |
267
|
0
|
|
|
|
|
|
$size =~ s/\s*//g; |
268
|
|
|
|
|
|
|
|
269
|
0
|
|
|
|
|
|
my ($scale, $precision) = split /,/, $size; |
270
|
|
|
|
|
|
|
|
271
|
0
|
|
|
|
|
|
$info->{size} = [ $precision, $scale ]; |
272
|
|
|
|
|
|
|
} |
273
|
|
|
|
|
|
|
elsif (lc($data_type) eq 'character varying') { |
274
|
0
|
|
|
|
|
|
$info->{data_type} = 'varchar'; |
275
|
|
|
|
|
|
|
|
276
|
0
|
0
|
|
|
|
|
if (not $info->{size}) { |
277
|
0
|
|
|
|
|
|
$info->{data_type} = 'text'; |
278
|
0
|
|
|
|
|
|
$info->{original}{data_type} = 'varchar'; |
279
|
|
|
|
|
|
|
} |
280
|
|
|
|
|
|
|
} |
281
|
|
|
|
|
|
|
elsif (lc($data_type) eq 'character') { |
282
|
0
|
|
|
|
|
|
$info->{data_type} = 'char'; |
283
|
|
|
|
|
|
|
} |
284
|
|
|
|
|
|
|
# DBD::Pg < 3.5.2 can get the order wrong on Pg >= 9.1.0 |
285
|
|
|
|
|
|
|
elsif ( |
286
|
|
|
|
|
|
|
($DBD::Pg::VERSION >= 3.005002 or $self->dbh->{pg_server_version} < 90100) |
287
|
|
|
|
|
|
|
and |
288
|
|
|
|
|
|
|
my $values = $raw->{$col}->{pg_enum_values} |
289
|
|
|
|
|
|
|
) { |
290
|
0
|
|
|
|
|
|
$info->{extra}{list} = $values; |
291
|
|
|
|
|
|
|
|
292
|
|
|
|
|
|
|
# Store its original name in extra for SQLT to pick up. |
293
|
0
|
|
|
|
|
|
$info->{extra}{custom_type_name} = $info->{data_type}; |
294
|
|
|
|
|
|
|
|
295
|
0
|
|
|
|
|
|
$info->{data_type} = 'enum'; |
296
|
|
|
|
|
|
|
|
297
|
0
|
|
|
|
|
|
delete $info->{size}; |
298
|
|
|
|
|
|
|
} |
299
|
|
|
|
|
|
|
else { |
300
|
0
|
|
|
|
|
|
my ($typetype) = $self->schema->storage->dbh |
301
|
|
|
|
|
|
|
->selectrow_array(<
|
302
|
|
|
|
|
|
|
SELECT typtype |
303
|
|
|
|
|
|
|
FROM pg_catalog.pg_type |
304
|
|
|
|
|
|
|
WHERE oid = ?::regtype |
305
|
|
|
|
|
|
|
EOF |
306
|
0
|
0
|
0
|
|
|
|
if ($typetype && $typetype eq 'e') { |
307
|
|
|
|
|
|
|
# The following will extract a list of allowed values for the enum. |
308
|
0
|
0
|
|
|
|
|
my $order_column = $self->dbh->{pg_server_version} >= 90100 ? 'enumsortorder' : 'oid'; |
309
|
0
|
|
|
|
|
|
$info->{extra}{list} = $self->dbh |
310
|
|
|
|
|
|
|
->selectcol_arrayref(<
|
311
|
|
|
|
|
|
|
SELECT e.enumlabel |
312
|
|
|
|
|
|
|
FROM pg_catalog.pg_enum e |
313
|
|
|
|
|
|
|
WHERE e.enumtypid = ?::regtype |
314
|
|
|
|
|
|
|
ORDER BY e.$order_column |
315
|
|
|
|
|
|
|
EOF |
316
|
|
|
|
|
|
|
|
317
|
|
|
|
|
|
|
# Store its original name in extra for SQLT to pick up. |
318
|
0
|
|
|
|
|
|
$info->{extra}{custom_type_name} = $data_type; |
319
|
|
|
|
|
|
|
|
320
|
0
|
|
|
|
|
|
$info->{data_type} = 'enum'; |
321
|
|
|
|
|
|
|
|
322
|
0
|
|
|
|
|
|
delete $info->{size}; |
323
|
|
|
|
|
|
|
} |
324
|
|
|
|
|
|
|
} |
325
|
|
|
|
|
|
|
|
326
|
0
|
0
|
|
|
|
|
if (ref($info->{default_value}) eq 'SCALAR') { |
327
|
|
|
|
|
|
|
# process SERIAL columns |
328
|
0
|
0
|
|
|
|
|
if (${ $info->{default_value} } =~ /\bnextval\('([^:]+)'/i) { |
|
0
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
329
|
0
|
|
|
|
|
|
$info->{is_auto_increment} = 1; |
330
|
0
|
|
|
|
|
|
$info->{sequence} = $1; |
331
|
0
|
|
|
|
|
|
delete $info->{default_value}; |
332
|
|
|
|
|
|
|
} |
333
|
|
|
|
|
|
|
# alias now() to current_timestamp for deploying to other DBs |
334
|
0
|
|
|
|
|
|
elsif (lc ${ $info->{default_value} } eq 'now()') { |
335
|
|
|
|
|
|
|
# do not use a ref to a constant, that breaks Data::Dump output |
336
|
0
|
|
|
|
|
|
${$info->{default_value}} = 'current_timestamp'; |
|
0
|
|
|
|
|
|
|
337
|
|
|
|
|
|
|
|
338
|
0
|
|
|
|
|
|
my $now = 'now()'; |
339
|
0
|
|
|
|
|
|
$info->{original}{default_value} = \$now; |
340
|
|
|
|
|
|
|
} |
341
|
0
|
|
|
|
|
|
elsif (${ $info->{default_value} } =~ /\bCURRENT_TIMESTAMP\b/) { |
342
|
|
|
|
|
|
|
# PostgreSQL v10 upcases current_timestamp in default values |
343
|
0
|
|
|
|
|
|
${ $info->{default_value} } =~ s/\b(CURRENT_TIMESTAMP)\b/lc $1/ge; |
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
344
|
|
|
|
|
|
|
} |
345
|
|
|
|
|
|
|
} |
346
|
|
|
|
|
|
|
|
347
|
|
|
|
|
|
|
# detect 0/1 for booleans and rewrite |
348
|
0
|
0
|
0
|
|
|
|
if ($data_type =~ /^bool/i && exists $info->{default_value}) { |
349
|
0
|
0
|
|
|
|
|
if ($info->{default_value} eq '0') { |
|
|
0
|
|
|
|
|
|
350
|
0
|
|
|
|
|
|
my $false = 'false'; |
351
|
0
|
|
|
|
|
|
$info->{default_value} = \$false; |
352
|
|
|
|
|
|
|
} |
353
|
|
|
|
|
|
|
elsif ($info->{default_value} eq '1') { |
354
|
0
|
|
|
|
|
|
my $true = 'true'; |
355
|
0
|
|
|
|
|
|
$info->{default_value} = \$true; |
356
|
|
|
|
|
|
|
} |
357
|
|
|
|
|
|
|
} |
358
|
|
|
|
|
|
|
} |
359
|
|
|
|
|
|
|
|
360
|
0
|
|
|
|
|
|
return $result; |
361
|
|
|
|
|
|
|
} |
362
|
|
|
|
|
|
|
|
363
|
|
|
|
|
|
|
sub _view_definition { |
364
|
0
|
|
|
0
|
|
|
my ($self, $view) = @_; |
365
|
|
|
|
|
|
|
|
366
|
0
|
|
|
|
|
|
my $def = $self->schema->storage->dbh->selectrow_array(<<'EOF', {}, $view->schema, $view->name); |
367
|
|
|
|
|
|
|
SELECT pg_catalog.pg_get_viewdef(oid) |
368
|
|
|
|
|
|
|
FROM pg_catalog.pg_class |
369
|
|
|
|
|
|
|
WHERE relnamespace = (SELECT OID FROM pg_catalog.pg_namespace WHERE nspname = ?) |
370
|
|
|
|
|
|
|
AND relname = ? |
371
|
|
|
|
|
|
|
EOF |
372
|
|
|
|
|
|
|
# The definition is returned as a complete statement including the |
373
|
|
|
|
|
|
|
# trailing semicolon, but that's not allowed in CREATE VIEW, so |
374
|
|
|
|
|
|
|
# strip it out |
375
|
0
|
|
|
|
|
|
$def =~ s/\s*;\s*\z//; |
376
|
0
|
|
|
|
|
|
return $def; |
377
|
|
|
|
|
|
|
} |
378
|
|
|
|
|
|
|
|
379
|
|
|
|
|
|
|
=head1 SEE ALSO |
380
|
|
|
|
|
|
|
|
381
|
|
|
|
|
|
|
L, L, |
382
|
|
|
|
|
|
|
L |
383
|
|
|
|
|
|
|
|
384
|
|
|
|
|
|
|
=head1 AUTHORS |
385
|
|
|
|
|
|
|
|
386
|
|
|
|
|
|
|
See L. |
387
|
|
|
|
|
|
|
|
388
|
|
|
|
|
|
|
=head1 LICENSE |
389
|
|
|
|
|
|
|
|
390
|
|
|
|
|
|
|
This library is free software; you can redistribute it and/or modify it under |
391
|
|
|
|
|
|
|
the same terms as Perl itself. |
392
|
|
|
|
|
|
|
|
393
|
|
|
|
|
|
|
=cut |
394
|
|
|
|
|
|
|
|
395
|
|
|
|
|
|
|
1; |