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Merged changehandler-dont-hexify-text-cols, addendum to bug 1038276

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This commit is contained in:
Brian Fraser
2012-09-19 16:36:56 -03:00
parent e418dad610 031cc1751c
commit 5d57905ef3
3 changed files with 30 additions and 3 deletions
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2
bin/pt-table-sync
View File

@@ -3576,7 +3576,7 @@ sub make_fetch_back_query {
map {
my $col = $_;
if ( $self->{hex_blob}
&& $tbl_struct->{type_for}->{$col} =~ m/blob|text|binary/ ) {
&& $tbl_struct->{type_for}->{$col} =~ m/b(?:lob|inary)/ ) {
$col = "IF(BINARY(`$col`)='', '', CONCAT('0x', HEX(`$col`))) AS `$col`";
}
else {

2
lib/ChangeHandler.pm
View File

@@ -496,7 +496,7 @@ sub make_fetch_back_query {
map {
my $col = $_;
if ( $self->{hex_blob}
&& $tbl_struct->{type_for}->{$col} =~ m/blob|text|binary/ ) {
&& $tbl_struct->{type_for}->{$col} =~ m/b(?:lob|inary)/ ) {
# Here we cast to binary, as otherwise, since text columns are
# space padded, MySQL would compare ' ' and '' to be the same.
# See https://bugs.launchpad.net/percona-toolkit/+bug/930693

29
t/lib/ChangeHandler.t
View File

@@ -386,7 +386,7 @@ is(
# #############################################################################
$tbl_struct = {
cols => [qw(t)],
type_for => {t=>'text'},
type_for => {t=>'blob'},
};
$ch = new ChangeHandler(
Quoter => $q,
@@ -406,6 +406,33 @@ is(
"Don't prepend 0x to blank blob/text column value (issue 1052)"
);
# #############################################################################
# An update to the above bug; It should only hexify for blob and binary, not
# for text columns; The latter not only breaks for UTF-8 data, but also
# breaks now that hex-looking columns aren't automatically left unquoted.
# #############################################################################
$tbl_struct = {
cols => [qw(t)],
type_for => {t=>'text'},
};
$ch = new ChangeHandler(
Quoter => $q,
left_db => 'test',
left_tbl => 't',
right_db => 'test',
right_tbl => 't',
actions => [ sub {} ],
replace => 0,
queue => 0,
tbl_struct => $tbl_struct,
);
is(
$ch->make_fetch_back_query('1=1'),
"SELECT `t` FROM `test`.`t` WHERE 1=1 LIMIT 1",
"Don't prepend 0x to blank blob/text column value (issue 1052)"
);
# #############################################################################
SKIP: {