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Make NibbleIter query comments customizable. Update the module in pt-table-checksum and pt-osc.

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This commit is contained in:
Daniel Nichter
2012-03-25 10:37:19 -06:00
parent 686a511b22
commit 45c1f3bfb6
4 changed files with 172 additions and 64 deletions
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22
lib/NibbleIterator.pm
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@@ -65,7 +65,19 @@ sub new {
# Die unless table can be nibbled, else return row estimate, nibble index,
# and if table can be nibbled in one chunk.
my $nibble_params = can_nibble(%args);
# Text appended to the queries in comments so caller can identify
# them in processlist, binlog, etc.
my %comments = (
bite => "bite table",
nibble => "nibble table",
);
if ( $args{comments} ) {
map { $comments{$_} = $args{comments}->{$_} }
grep { defined $args{comments}->{$_} }
keys %{$args{comments}};
}
my $where = $o->has('where') ? $o->get('where') : '';
my $tbl_struct = $tbl->{tbl_struct};
my $ignore_col = $o->has('ignore-columns')
@@ -85,7 +97,7 @@ sub new {
: join(', ', map { $q->quote($_) } @cols))
. " FROM $tbl->{name}"
. ($where ? " WHERE $where" : '')
. " /*checksum table*/";
. " /*$comments{bite}*/";
PTDEBUG && _d('One nibble statement:', $nibble_sql);
my $explain_nibble_sql
@@ -94,7 +106,7 @@ sub new {
: join(', ', map { $q->quote($_) } @cols))
. " FROM $tbl->{name}"
. ($where ? " WHERE $where" : '')
. " /*explain checksum table*/";
. " /*explain $comments{bite}*/";
PTDEBUG && _d('Explain one nibble statement:', $explain_nibble_sql);
$self = {
@@ -197,7 +209,7 @@ sub new {
. " AND " . $asc->{boundaries}->{'<='} # upper boundary
. ($where ? " AND ($where)" : '')
. ($args{order_by} ? " ORDER BY $order_by" : "")
. " /*checksum chunk*/";
. " /*$comments{nibble}*/";
PTDEBUG && _d('Nibble statement:', $nibble_sql);
my $explain_nibble_sql
@@ -209,7 +221,7 @@ sub new {
. " AND " . $asc->{boundaries}->{'<='} # upper boundary
. ($where ? " AND ($where)" : '')
. ($args{order_by} ? " ORDER BY $order_by" : "")
. " /*explain checksum chunk*/";
. " /*explain $comments{nibble}*/";
PTDEBUG && _d('Explain nibble statement:', $explain_nibble_sql);
my $limit = $chunk_size - 1;