mirror of
https://github.com/percona/percona-toolkit.git
synced 2025-09-10 21:19:59 +00:00
Make --explain cummulative. Update char_chunking.t. Reword checksum query comments.
This commit is contained in:
Daniel Nichter
@@ -3483,7 +3483,7 @@ sub new {
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: join(', ', map { $q->quote($_) } @cols))
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. " FROM " . $q->quote(@{$tbl}{qw(db tbl)})
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. ($args{where} ? " AND ($args{where})" : '')
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. " /*one nibble*/";
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. " /*checksum table*/";
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MKDEBUG && _d('One nibble statement:', $nibble_sql);
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my $explain_nibble_sql
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@@ -3492,7 +3492,7 @@ sub new {
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: join(', ', map { $q->quote($_) } @cols))
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. " FROM " . $q->quote(@{$tbl}{qw(db tbl)})
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. ($args{where} ? " AND ($args{where})" : '')
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. " /*explain one nibble*/";
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. " /*explain checksum table*/";
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MKDEBUG && _d('Explain one nibble statement:', $explain_nibble_sql);
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$self = {
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@@ -3546,7 +3546,7 @@ sub new {
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. ($args{where} ? " AND ($args{where})" : '')
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. " ORDER BY $order_by"
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. " LIMIT ?, 2"
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. " /*upper boundary*/";
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. " /*next chunk boundary*/";
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MKDEBUG && _d('Upper boundary statement:', $ub_sql);
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my $nibble_sql
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@@ -3558,7 +3558,7 @@ sub new {
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. " AND " . $asc->{boundaries}->{'<='} # upper boundary
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. ($args{where} ? " AND ($args{where})" : '')
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. " ORDER BY $order_by"
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. " /*nibble*/";
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. " /*checksum chunk*/";
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MKDEBUG && _d('Nibble statement:', $nibble_sql);
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my $explain_nibble_sql
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@@ -3570,7 +3570,7 @@ sub new {
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. " AND " . $asc->{boundaries}->{'<='} # upper boundary
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. ($args{where} ? " AND ($args{where})" : '')
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. " ORDER BY $order_by"
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. " /*explain nibble*/";
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. " /*explain checksum chunk*/";
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MKDEBUG && _d('Explain nibble statement:', $explain_nibble_sql);
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my $limit = $chunk_size - 1;
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@@ -3741,6 +3741,11 @@ sub sql {
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return $self->{sql};
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}
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sub more_boundaries {
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my ($self) = @_;
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return !$self->{no_more_boundaries};
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}
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sub _find_best_index {
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my (%args) = @_;
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my @required_args = qw(tbl TableParser dbh Quoter);
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@@ -5650,21 +5655,24 @@ sub main {
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my $nibble_iter = $args{NibbleIterator};
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my $oktonibble = 1;
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if ( $o->get('explain') ) { # dry run (--explain)
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# We're not going to checksum the table, just report the
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# statements that we would use to checksum it.
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if ( $o->get('explain') ) {
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# --explain level 1: print the checksum and next boundary
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# statements.
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print "--\n",
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"-- Statements for table $tbl->{db}.$tbl->{tbl}:\n",
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"-- $tbl->{db}.$tbl->{tbl}\n",
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"--\n\n";
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my $statements = $nibble_iter->statements();
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foreach my $sth ( sort keys %$statements ) {
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next if $sth =~ m/^explain/;
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if ( $statements->{$sth} ) {
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print $statements->{$sth}->{Statement}, "\n\n";
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}
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}
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if ( $o->get('explain') < 2 ) {
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$oktonibble = 0; # don't nibble table; next table
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}
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}
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elsif ( $last_chunk ) { # resuming
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my $next_lb = next_lower_boundary(
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%args,
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@@ -5745,6 +5753,22 @@ sub main {
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# Count every chunk, even if it's ultimately skipped, etc.
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$tbl->{checksum_results}->{n_chunks}++;
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# --explain level 2: print chunk,lower boundary values,upper
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# boundary values.
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if ( $o->get('explain') > 1 ) {
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my $lb_quoted = join(',', @{$boundary->{lower}});
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my $ub_quoted = join(',', @{$boundary->{upper}});
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my $chunk = $nibble_iter->nibble_number();
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printf "%d %s %s\n",
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$chunk,
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(defined $lb_quoted ? $lb_quoted : '1=1'),
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(defined $ub_quoted ? $ub_quoted : '1=1');
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if ( !$nibble_iter->more_boundaries() ) {
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print "\n"; # blank line between this table and the next table
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}
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return 0; # next boundary
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}
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# If the table is being chunk (i.e., it's not small enough to be
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# consumed by one nibble), then check index usage and chunk size.
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if ( !$nibble_iter->one_nibble() ) {
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@@ -5799,6 +5823,9 @@ sub main {
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my $tbl = $args{tbl};
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my $nibble_iter = $args{NibbleIterator};
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# Don't need to do anything here if we're just --explain'ing.
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return if $o->get('explain');
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# Chunk/nibble number that we just inserted or skipped.
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my $chunk = $nibble_iter->nibble_number();
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@@ -5889,6 +5916,9 @@ sub main {
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my $nibble_iter = $args{NibbleIterator};
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my $max_chunk = $nibble_iter->nibble_number();
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# Don't need to do anything here if we're just --explain'ing.
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return if $o->get('explain');
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# Wait for all slaves to run all checksum chunks,
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# then check for differences.
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if ( $o->get('replicate-check') && scalar @$slaves ) {
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@@ -6979,7 +7009,7 @@ Do only this comma-separated list of storage engines.
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=item --explain
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group: Output
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cumulative: yes; default: 0; group: Output
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Show, but do not execute, checksum queries (disables L<"--[no]empty-replicate-table">).
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@@ -82,7 +82,7 @@ sub new {
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: join(', ', map { $q->quote($_) } @cols))
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. " FROM " . $q->quote(@{$tbl}{qw(db tbl)})
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. ($args{where} ? " AND ($args{where})" : '')
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. " /*one nibble*/";
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. " /*checksum table*/";
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MKDEBUG && _d('One nibble statement:', $nibble_sql);
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my $explain_nibble_sql
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@@ -91,7 +91,7 @@ sub new {
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: join(', ', map { $q->quote($_) } @cols))
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. " FROM " . $q->quote(@{$tbl}{qw(db tbl)})
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. ($args{where} ? " AND ($args{where})" : '')
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. " /*explain one nibble*/";
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. " /*explain checksum table*/";
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MKDEBUG && _d('Explain one nibble statement:', $explain_nibble_sql);
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$self = {
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@@ -158,7 +158,7 @@ sub new {
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. ($args{where} ? " AND ($args{where})" : '')
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. " ORDER BY $order_by"
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. " LIMIT ?, 2"
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. " /*upper boundary*/";
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. " /*next chunk boundary*/";
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MKDEBUG && _d('Upper boundary statement:', $ub_sql);
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# This statement does the actual nibbling work; its rows are returned
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@@ -172,7 +172,7 @@ sub new {
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. " AND " . $asc->{boundaries}->{'<='} # upper boundary
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. ($args{where} ? " AND ($args{where})" : '')
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. " ORDER BY $order_by"
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. " /*nibble*/";
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. " /*checksum chunk*/";
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MKDEBUG && _d('Nibble statement:', $nibble_sql);
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my $explain_nibble_sql
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@@ -184,7 +184,7 @@ sub new {
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. " AND " . $asc->{boundaries}->{'<='} # upper boundary
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. ($args{where} ? " AND ($args{where})" : '')
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. " ORDER BY $order_by"
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. " /*explain nibble*/";
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. " /*explain checksum chunk*/";
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MKDEBUG && _d('Explain nibble statement:', $explain_nibble_sql);
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my $limit = $chunk_size - 1;
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@@ -364,6 +364,11 @@ sub sql {
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return $self->{sql};
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}
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sub more_boundaries {
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my ($self) = @_;
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return !$self->{no_more_boundaries};
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}
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sub _find_best_index {
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my (%args) = @_;
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my @required_args = qw(tbl TableParser dbh Quoter);
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@@ -6,3 +6,149 @@ CREATE TABLE `ascii` (
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UNIQUE KEY `c` (`c`)
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) ENGINE=MyISAM AUTO_INCREMENT=143 DEFAULT CHARSET=latin1;
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INSERT INTO `ascii` VALUES (1,''),(2,'M'),(3,'007'),(4,'Penelope'),(5,'Nick'),(6,'Ed'),(7,'Jennifer'),(8,'johnny'),(9,'Bette'),(10,'Grace'),(11,'matthew'),(12,'joe'),(13,'christian'),(14,'zero'),(15,'karl'),(16,'uma'),(17,'vivien'),(18,'Cuba'),(19,'Fred'),(20,'Helen'),(21,'Dan'),(22,'Bob'),(23,'<[MEGATRON]>'),(24,'Lucille'),(25,'Kirsten'),(26,'Elvis'),(27,'Sandra'),(28,'Cameron'),(29,'Kevin'),(30,'Rip'),(31,'Julia'),(32,'Jean-Luc'),(33,'Woody'),(34,'Alec'),(35,'Sissy'),(36,'tim'),(37,'milla'),(38,'audrey'),(39,'judy'),(40,'burt'),(41,'val'),(42,'tom'),(43,'goldie'),(44,'jodie'),(45,'kirk'),(46,'reese'),(47,'parker'),(48,'Frances'),(49,'Anne'),(50,'Natalie'),(51,'Gary'),(52,'Carmen'),(53,'@the ball park'),(54,'Mena'),(55,'Fay'),(56,'Jude'),(57,'Dustin'),(58,'Henry'),(59,'jayne'),(60,'Ray'),(61,'Angela'),(62,'Mary'),(63,'Jessica'),(64,'kenneth'),(65,'Michelle'),(66,'adam'),(67,'Sean'),(68,'Angelina'),(69,'Cary'),(70,'Groucho'),(71,'Mae'),(72,'Ralph'),(73,'Scarlett'),(74,'Ben'),(75,'bling$$$'),(76,'James'),(77,'Minnie'),(78,'Greg'),(79,'spencer'),(80,'charlize'),(81,'christopher'),(82,'Ellen'),(83,'Daryl'),(84,'Gene'),(85,'Meg'),(86,'Chris'),(87,'jim'),(88,'susan'),(89,'walter'),(90,'sidney'),(91,'gina'),(92,'warren'),(93,'Sylvester'),(94,'Russell'),(95,'Morgan'),(96,'Harrison'),(97,'Renee'),(98,'Liza'),(99,'Salma'),(100,'Julianne'),(101,'Albert'),(102,'Cate'),(103,'Greta'),(104,'jane'),(105,'richard'),(106,'rita'),(107,'ewan'),(108,'whoopi'),(109,'jada'),(110,'River'),(111,'Kim'),(112,'Emily'),(113,'Geoffrey'),(114,'meryl'),(115,'Ian'),(116,'Laura'),(117,'Harvey'),(118,'Oprah'),(119,'Humphrey'),(120,'Al'),(121,'laurence'),(122,'will'),(123,'olympia'),(124,'alan'),(125,'michael'),(126,'william'),(127,'jon'),(128,'Mr. Peanut'),(129,'Mr. Rogers'),(130,'lisa'),(131,'Jeff'),(132,'Debbie'),(133,'Rock'),(134,'Gregory'),(135,'John'),(136,'Bela'),(137,'Thora'),(138,'Zesus'),(139,'Zesus!'),(140,'Zesus!!'),(141,'ZESUS!!!'),(142,'001');
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--
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-- Here's how MySQL sorts these values on my machine:
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--
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-- | 1 | |
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-- | 2 | 001 |
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-- | 3 | 007 |
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-- | 4 | <[MEGATRON]> |
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-- | 5 | @the ball park |
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-- | 6 | adam |
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-- | 7 | Al |
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-- | 8 | alan |
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-- | 9 | Albert |
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-- | 10 | Alec |
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-- | 11 | Angela |
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-- | 12 | Angelina |
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-- | 13 | Anne |
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-- | 14 | audrey |
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-- | 15 | Bela |
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-- | 16 | Ben |
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-- | 17 | Bette |
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-- | 18 | bling$$$ |
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-- | 19 | Bob |
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-- | 20 | burt |
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-- | 21 | Cameron |
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-- | 22 | Carmen |
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-- | 23 | Cary |
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-- | 24 | Cate |
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-- | 25 | charlize |
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-- | 26 | Chris |
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-- | 27 | christian |
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-- | 28 | christopher |
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-- | 29 | Cuba |
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-- | 30 | Dan |
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-- | 31 | Daryl |
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-- | 32 | Debbie |
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-- | 33 | Dustin |
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-- | 34 | Ed |
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-- | 35 | Ellen |
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-- | 36 | Elvis |
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-- | 37 | Emily |
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-- | 38 | ewan |
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-- | 39 | Fay |
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-- | 40 | Frances |
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-- | 41 | Fred |
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-- | 42 | Gary |
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-- | 43 | Gene |
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-- | 44 | Geoffrey |
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-- | 45 | gina |
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-- | 46 | goldie |
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-- | 47 | Grace |
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-- | 48 | Greg |
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-- | 49 | Gregory |
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-- | 50 | Greta |
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-- | 51 | Groucho |
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-- | 52 | Harrison |
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-- | 53 | Harvey |
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-- | 54 | Helen |
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-- | 55 | Henry |
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-- | 56 | Humphrey |
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-- | 57 | Ian |
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-- | 58 | jada |
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-- | 59 | James |
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-- | 60 | jane |
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-- | 61 | jayne |
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-- | 62 | Jean-Luc |
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-- | 63 | Jeff |
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-- | 64 | Jennifer |
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-- | 65 | Jessica |
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-- | 66 | jim |
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-- | 67 | jodie |
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-- | 68 | joe |
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-- | 69 | John |
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-- | 70 | johnny |
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-- | 71 | jon |
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-- | 72 | Jude |
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-- | 73 | judy |
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-- | 74 | Julia |
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-- | 75 | Julianne |
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-- | 76 | karl |
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-- | 77 | kenneth |
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-- | 78 | Kevin |
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-- | 79 | Kim |
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-- | 80 | kirk |
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-- | 81 | Kirsten |
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-- | 82 | Laura |
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-- | 83 | laurence |
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-- | 84 | lisa |
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-- | 85 | Liza |
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-- | 86 | Lucille |
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-- | 87 | M |
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-- | 88 | Mae |
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-- | 89 | Mary |
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-- | 90 | matthew |
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-- | 91 | Meg |
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-- | 92 | Mena |
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-- | 93 | meryl |
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-- | 94 | michael |
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-- | 95 | Michelle |
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-- | 96 | milla |
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-- | 97 | Minnie |
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-- | 98 | Morgan |
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-- | 99 | Mr. Peanut |
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-- | 100 | Mr. Rogers |
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-- | 101 | Natalie |
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-- | 102 | Nick |
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-- | 103 | olympia |
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-- | 104 | Oprah |
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-- | 105 | parker |
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-- | 106 | Penelope |
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-- | 107 | Ralph |
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-- | 108 | Ray |
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-- | 109 | reese |
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-- | 110 | Renee |
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-- | 111 | richard |
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-- | 112 | Rip |
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-- | 113 | rita |
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-- | 114 | River |
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-- | 115 | Rock |
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-- | 116 | Russell |
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-- | 117 | Salma |
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-- | 118 | Sandra |
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-- | 119 | Scarlett |
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-- | 120 | Sean |
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-- | 121 | sidney |
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-- | 122 | Sissy |
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-- | 123 | spencer |
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-- | 124 | susan |
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-- | 125 | Sylvester |
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-- | 126 | Thora |
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-- | 127 | tim |
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-- | 128 | tom |
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-- | 129 | uma |
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-- | 130 | val |
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-- | 131 | vivien |
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-- | 132 | walter |
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-- | 133 | warren |
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-- | 134 | whoopi |
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-- | 135 | will |
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-- | 136 | william |
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-- | 137 | Woody |
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-- | 138 | zero |
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-- | 139 | Zesus |
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-- | 140 | Zesus! |
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-- | 141 | Zesus!! |
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-- | 142 | ZESUS!!! |
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@@ -15,29 +15,30 @@ use PerconaTest;
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use Sandbox;
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require "$trunk/bin/pt-table-checksum";
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my $vp = new VersionParser();
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my $dp = new DSNParser(opts=>$dsn_opts);
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my $sb = new Sandbox(basedir => '/tmp', DSNParser => $dp);
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my $dbh = $sb->get_dbh_for('master');
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my $master_dbh = $sb->get_dbh_for('master');
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if ( !$dbh ) {
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if ( !$master_dbh ) {
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plan skip_all => 'Cannot connect to sandbox master';
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}
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else {
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plan tests => 3;
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plan tests => 2;
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}
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my $output;
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my $cnf ='/tmp/12345/my.sandbox.cnf';
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my @args = ("F=$cnf", qw(--lock-wait-timeout 3 --chunk-time 0 --chunk-size-limit 0 --tables test.ascii));
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# The sandbox servers run with lock_wait_timeout=3 and it's not dynamic
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# so we need to specify --lock-wait-timeout=3 else the tool will die.
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my $master_dsn = 'h=127.1,P=12345,u=msandbox,p=msandbox';
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my @args = ($master_dsn, qw(--lock-wait-timeout 3));
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$sb->create_dbs($dbh, ['test']);
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$sb->create_dbs($master_dbh, ['test']);
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$sb->load_file('master', "t/lib/samples/char-chunking/ascii.sql", 'test');
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ok(
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no_diff(
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sub { pt_table_checksum::main(@args,
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qw(--chunk-size 20 --explain)) },
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qw(--tables test.ascii --chunk-index c --chunk-size 20),
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qw(--explain --explain)) },
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"t/pt-table-checksum/samples/char-chunk-ascii-explain.txt",
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),
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"Char chunk ascii, explain"
|
||||
@@ -46,23 +47,16 @@ ok(
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ok(
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no_diff(
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sub { pt_table_checksum::main(@args,
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||||
qw(--chunk-size 20)) },
|
||||
qw(--tables test.ascii --chunk-index c --chunk-size 20),
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qw(--chunk-time 0)) },
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"t/pt-table-checksum/samples/char-chunk-ascii.txt",
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post_pipe => 'awk \'{print $2 " " $3 " " $4 " " $5 " " $6 " " $8}\'',
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),
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"Char chunk ascii, chunk size 20"
|
||||
);
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|
||||
ok(
|
||||
no_diff(
|
||||
sub { pt_table_checksum::main(@args,
|
||||
qw(--chunk-size 20 --chunk-size-limit 3)) },
|
||||
"t/pt-table-checksum/samples/char-chunk-ascii-oversize.txt",
|
||||
),
|
||||
"Char chunk ascii, chunk size 20, with oversize"
|
||||
);
|
||||
|
||||
# #############################################################################
|
||||
# Done.
|
||||
# #############################################################################
|
||||
$sb->wipe_clean($dbh);
|
||||
$sb->wipe_clean($master_dbh);
|
||||
exit;
|
||||
|
||||
@@ -1,9 +1,17 @@
|
||||
test ascii SELECT /*test.ascii:1/8*/ 0 AS chunk_num, COUNT(*) AS cnt, COALESCE(LOWER(CONV(BIT_XOR(CAST(CRC32(CONCAT_WS('#', `i`, `c`)) AS UNSIGNED)), 10, 16)), 0) AS crc FROM `test`.`ascii` FORCE INDEX (`c`) WHERE (`c` < ')')
|
||||
test ascii `c` < ')'
|
||||
test ascii `c` >= ')' AND `c` < '1'
|
||||
test ascii `c` >= '1' AND `c` < '9'
|
||||
test ascii `c` >= '9' AND `c` < 'A'
|
||||
test ascii `c` >= 'A' AND `c` < 'I'
|
||||
test ascii `c` >= 'I' AND `c` < 'Q'
|
||||
test ascii `c` >= 'Q' AND `c` < 'Y'
|
||||
test ascii `c` >= 'Y'
|
||||
--
|
||||
-- test.ascii
|
||||
--
|
||||
|
||||
REPLACE INTO `percona`.`checksums` (db, tbl, chunk, chunk_index, lower_boundary, upper_boundary, this_cnt, this_crc) SELECT ?, ?, ?, ?, ?, ?, COUNT(*) AS cnt, COALESCE(LOWER(CONV(BIT_XOR(CAST(CRC32(CONCAT_WS('#', `i`, `c`)) AS UNSIGNED)), 10, 16)), 0) AS crc FROM `test`.`ascii` FORCE INDEX(`c`) WHERE ((`c` >= ?)) AND ((`c` <= ?)) ORDER BY `c` /*checksum chunk*/
|
||||
|
||||
SELECT /*!40001 SQL_NO_CACHE */ `c` FROM `test`.`ascii` FORCE INDEX(`c`) WHERE ((`c` >= ?)) ORDER BY `c` LIMIT ?, 2 /*next chunk boundary*/
|
||||
|
||||
1 burt
|
||||
2 Cameron Frances
|
||||
3 Fred jane
|
||||
4 jayne kirk
|
||||
5 Kirsten Mr. Rogers
|
||||
6 Natalie Sean
|
||||
7 sidney Zesus!
|
||||
8 Zesus!! ZESUS!!!
|
||||
|
||||
|
||||
@@ -1,9 +1,2 @@
|
||||
DATABASE TABLE CHUNK HOST ENGINE COUNT CHECKSUM TIME WAIT STAT LAG
|
||||
test ascii 0 127.1 MyISAM 1 25e3643f 0 0 NULL NULL
|
||||
test ascii 1 127.1 MyISAM 2 1eb24fbb 0 0 NULL NULL
|
||||
test ascii 2 127.1 MyISAM 0 NULL 0 0 NULL NULL
|
||||
test ascii 3 127.1 MyISAM 2 fb3ab74d 0 0 NULL NULL
|
||||
test ascii 4 127.1 MyISAM OVERSIZE NULL NULL NULL NULL NULL
|
||||
test ascii 5 127.1 MyISAM OVERSIZE NULL NULL NULL NULL NULL
|
||||
test ascii 6 127.1 MyISAM 31 77958122 0 0 NULL NULL
|
||||
test ascii 7 127.1 MyISAM 5 3c0ef0c2 0 0 NULL NULL
|
||||
ERRORS DIFFS ROWS CHUNKS SKIPPED TABLE
|
||||
0 0 142 8 0 test.ascii
|
||||
|
||||
Reference in New Issue
Block a user