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Fix and test --alter-fk-method=none.

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This commit is contained in:
Daniel Nichter
2012-03-29 16:53:11 -06:00
parent 767aed2a95
commit 3d0cae5a60
2 changed files with 47 additions and 3 deletions
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13
bin/pt-online-schema-change
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@@ -4936,7 +4936,7 @@ sub main {
}
my $alter_fk_method = $o->get('alter-foreign-keys-method') || '';
if ( $alter_fk_method =~ m/^(?:drop_swap|none)/ ) {
if ( $alter_fk_method eq 'drop_swap' ) {
$o->set('swap-tables', 0);
$o->set('drop-old-table', 0);
}
@@ -5928,6 +5928,17 @@ sub main {
}
else {
print "Dropping old table...\n";
if ( $alter_fk_method eq 'none' ) {
# Child tables still reference the old table, but the user
# has chosen to break fks, so we need to disable fk checks
# in order to drop the old table.
my $sql = "SET foreign_key_checks=0";
PTDEBUG && _d($sql);
print $sql, "\n" if $o->get('print');
$cxn->dbh()->do($sql);
}
my $sql = "DROP TABLE IF EXISTS $old_tbl->{name}";
print $sql, "\n" if $o->get('print');
PTDEBUG && _d($sql);