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Check key_len for each chunk to ensure it doesn't decrease. Add --[no]check-plan.

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This commit is contained in:
Daniel Nichter
2012-06-09 22:23:00 -04:00
parent 09ddcd641e
commit 2a92a0a0ff
3 changed files with 188 additions and 79 deletions
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35
lib/NibbleIterator.pm
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@@ -229,16 +229,17 @@ sub new {
$self = {
%args,
index => $index,
limit => $limit,
first_lb_sql => $first_lb_sql,
last_ub_sql => $last_ub_sql,
ub_sql => $ub_sql,
nibble_sql => $nibble_sql,
explain_ub_sql => "EXPLAIN $ub_sql",
explain_nibble_sql => $explain_nibble_sql,
resume_lb_sql => $resume_lb_sql,
sql => {
index => $index,
limit => $limit,
first_lb_sql => $first_lb_sql,
last_ub_sql => $last_ub_sql,
ub_sql => $ub_sql,
nibble_sql => $nibble_sql,
explain_first_lb_sql => "EXPLAIN $first_lb_sql",
explain_ub_sql => "EXPLAIN $ub_sql",
explain_nibble_sql => $explain_nibble_sql,
resume_lb_sql => $resume_lb_sql,
sql => {
columns => $asc->{scols},
from => $from,
where => $where,
@@ -357,10 +358,11 @@ sub nibble_index {
sub statements {
my ($self) = @_;
return {
nibble => $self->{nibble_sth},
explain_nibble => $self->{explain_nibble_sth},
upper_boundary => $self->{ub_sth},
explain_upper_boundary => $self->{explain_ub_sth},
explain_first_lower_boundary => $self->{explain_first_lb_sth},
nibble => $self->{nibble_sth},
explain_nibble => $self->{explain_nibble_sth},
upper_boundary => $self->{ub_sth},
explain_upper_boundary => $self->{explain_ub_sth},
}
}
@@ -613,8 +615,9 @@ sub _prepare_sths {
$self->{explain_nibble_sth} = $dbh->prepare($self->{explain_nibble_sql});
if ( !$self->{one_nibble} ) {
$self->{ub_sth} = $dbh->prepare($self->{ub_sql});
$self->{explain_ub_sth} = $dbh->prepare($self->{explain_ub_sql});
$self->{explain_first_lb_sth} = $dbh->prepare($self->{explain_first_lb_sql});
$self->{ub_sth} = $dbh->prepare($self->{ub_sql});
$self->{explain_ub_sth} = $dbh->prepare($self->{explain_ub_sql});
}
return;