/ 
DBIO-DB2-0.900001
/ DBIO::DB2::Diff::Index

NAME

DBIO::DB2::Diff::Index - Diff operations for DB2 indexes

VERSION

version 0.900001

DESCRIPTION

Index-level diff operations for DB2. DB2 supports CREATE INDEX and DROP INDEX. Changed index definitions become a drop-then-create pair. Index names must be unique within a schema.

new, action and summary_prefix come from DBIO::Diff::Op.

METHODS

diff

my @ops = DBIO::DB2::Diff::Index->diff(
  $source, $target, $source_tables, $target_tables);

Compares index sets across all tables. Index identity is by name; changed definitions produce a drop-then-create pair.

The optional $source_tables / $target_tables hashrefs are the tables sections of the two models (threaded in by DBIO::DB2::Diff). They are used to detect tables being dropped in this same diff pass: DB2's DROP TABLE already removes that table's own indexes, so emitting a standalone DROP INDEX for one of them would fail (the index is already gone) and abort the deploy (karr #19). When these arguments are absent (e.g. direct unit-test calls) the dropped set is empty and no drops are suppressed, preserving the original two-argument behaviour.

as_sql

summary

AUTHOR

DBIO & DBIx::Class Authors

COPYRIGHT AND LICENSE

Copyright (C) 2026 DBIO Authors Portions Copyright (C) 2005-2025 DBIx::Class Authors Based on DBIx::Class, heavily modified.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.