Mercurial > pub > Impl
annotate lib/IMPL/SQL/Schema/Constraint/Index.pm @ 418:3f38dabaf5cc ref20150831
sync
author | cin |
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date | Mon, 28 Dec 2015 15:11:35 +0300 |
parents | c6e90e02dd17 |
children |
rev | line source |
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407 | 1 package IMPL::SQL::Schema::Constraint::Index; |
2 use strict; | |
3 use parent qw(IMPL::SQL::Schema::Constraint); | |
4 | |
5 __PACKAGE__->PassThroughArgs; | |
6 __PACKAGE__->RegisterAlias('index'); | |
7 | |
8 sub CTOR { | |
9 my $this = shift; | |
10 | |
11 my %colnames; | |
12 not grep { $colnames{$_}++ } $this->columns or die new Exception('Each column in the index can occur only once'); | |
13 } | |
14 | |
15 1; |