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Remove --chunk-index-columns and extend --chunk-index instead to take INDEX:N value. Add n_index_values to TableNibbler.

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Daniel Nichter
2012-06-10 10:01:25 -04:00
parent 3c553665a2
commit 272f963733
4 changed files with 76 additions and 28 deletions
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7
lib/TableNibbler.pm
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@@ -41,6 +41,7 @@ sub new {
# * tbl_struct Hashref returned from TableParser::parse().
# * cols Arrayref of columns to SELECT from the table
# * index Which index to ascend; optional.
# * n_index_cols The number of left-most index columns to use.
# * asc_only Whether to ascend strictly, that is, the WHERE clause for
# the asc_stmt will fetch the next row > the given arguments.
# The option is to fetch the row >=, which could loop
@@ -77,8 +78,12 @@ sub generate_asc_stmt {
# These are the columns we'll ascend.
my @asc_cols = @{$tbl_struct->{keys}->{$index}->{cols}};
if ( $args{asc_first} ) {
@asc_cols = $asc_cols[0];
PTDEBUG && _d('Ascending only first column');
@asc_cols = $asc_cols[0];
}
elsif ( my $n = $args{n_index_cols} ) {
PTDEBUG && _d('Ascending only first', $n, 'columns');
@asc_cols = @asc_cols[0..($n-1)];
}
PTDEBUG && _d('Will ascend columns', join(', ', @asc_cols));