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package Pg::SQL::PrettyPrinter::Node::RangeTableSample; |
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# UTF8 boilerplace, per http://stackoverflow.com/questions/6162484/why-does-modern-perl-avoid-utf-8-by-default/ |
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use v5.26; |
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use strict; |
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use warnings; |
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use warnings qw( FATAL utf8 ); |
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use utf8; |
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use open qw( :std :utf8 ); |
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use Unicode::Normalize qw( NFC ); |
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use Unicode::Collate; |
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use Encode qw( decode ); |
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if ( grep /\P{ASCII}/ => @ARGV ) { |
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@ARGV = map { decode( 'UTF-8', $_ ) } @ARGV; |
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} |
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# If there is __DATA__,then uncomment next line: |
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# binmode( DATA, ':encoding(UTF-8)' ); |
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# UTF8 boilerplace, per http://stackoverflow.com/questions/6162484/why-does-modern-perl-avoid-utf-8-by-default/ |
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# Useful common code |
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use autodie; |
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use Carp qw( carp croak confess cluck ); |
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use English qw( -no_match_vars ); |
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use Data::Dumper qw( Dumper ); |
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# give a full stack dump on any untrapped exceptions |
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local $SIG{ __DIE__ } = sub { |
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confess "Uncaught exception: @_" unless $^S; |
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}; |
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# now promote run-time warnings into stackdumped exceptions |
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# *unless* we're in an try block, in which |
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# case just generate a clucking stackdump instead |
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local $SIG{ __WARN__ } = sub { |
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if ( $^S ) { cluck "Trapped warning: @_" } |
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else { confess "Deadly warning: @_" } |
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}; |
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# Useful common code |
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use parent qw( Pg::SQL::PrettyPrinter::Node ); |
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45
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sub new { |
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my $class = shift; |
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my $self = $class->SUPER::new( @_ ); |
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bless $self, $class; |
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croak( 'More than one method in tablesample: ' . Dumper( $self ) ) if 1 < scalar @{ $self->{ 'method' } }; |
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$self->objectify( qw( relation args method repeatable ) ); |
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return $self; |
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} |
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sub as_text { |
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my $self = shift; |
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my @elements = (); |
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push @elements, $self->{ 'relation' }->as_text; |
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push @elements, 'TABLESAMPLE'; |
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push @elements, $self->{ 'method' }->[ 0 ]->as_ident; |
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# Uppercase one of two pg-provided sampling methods |
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$elements[ -1 ] =~ s/\A(system|bernoulli)\z/\U$1/; |
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push @elements, '('; |
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push @elements, map { $_->as_text } @{ $self->{ 'args' } }; |
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68
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push @elements, ')'; |
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100
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if ( exists $self->{ 'repeatable' } ) { |
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push @elements, 'REPEATABLE', '(', $self->{ 'repeatable' }->as_text, ')'; |
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} |
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return join( ' ', @elements ); |
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} |
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75
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1; |
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# vim: set ft=perl: |