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DMOW / Eludia-10.01.07.b610f5f / Eludia-10.01.07.b610f5f / Eludia / SQL / Dialect / Oracle / Wish / table_keys.pm 

            

              
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#############################################################################
sub wish_to_adjust_options_for_table_keys {
        my ($options) = @_;
         
        $options -> {key} = ['def'];
}
#############################################################################
sub wish_to_clarify_demands_for_table_keys {    
        my ($i, $options) = @_;
        $i -> {global_name} = sql_mangled_name ($options -> {table} . '_' . delete $i -> {name});
        ref $i -> {parts} eq ARRAY or $i -> {parts} = [split /\,/, $i -> {parts}];
        foreach my $part (@{$i -> {parts}}) {
         
                $part = uc $part;
                 
                $part =~ s{\s}{}gsm;
         
                if ($part =~ /^(\w+)\((\d+)\)$/) {
                 
                        my ($column, $width) = ($1, $2);
                         
                        my $type = uc $options -> {table_def} -> {columns} -> {lc $column} -> {TYPE_NAME};
                        if ($type =~ /CHAR/) {
                                $part = qq{SUBSTR("$column",1,$width)};
                        } 
                        elsif ($type =~ /(LOB|TEXT)$/) {
                                $part = qq{SUBSTR(TO_CHAR("$column"),1,$width)};
                        } 
                        else {
                                die Dumper ($options);
                        }
                         
                 
                }
        }
         
        $i -> {def} = join ', ', @{$i -> {parts}};
}
################################################################################
sub wish_to_explore_existing_table_keys {
        my ($options) = @_;
        my %k = ();
        sql_select_loop (<<EOS, sub {$k {$i -> {index_name}} -> [$i -> {column_position} - 1] = uc $i -> {column_name}}, uc_table_name ($options -> {table}));
                SELECT 
                        user_indexes.index_name
                        , user_ind_columns.column_name
                        , user_ind_columns.column_position
                FROM 
                        user_indexes
                        INNER JOIN user_ind_columns ON user_ind_columns.index_name = user_indexes.index_name
                WHERE
                        user_indexes.index_type LIKE '%NORMAL%'
                        AND user_indexes.table_name = ?
EOS
        sql_select_loop (<<EOS, sub {$k {$i -> {index_name}} -> [$i -> {column_position} - 1] = uc $i -> {column_expression}; $k {$i -> {index_name}} -> [$i -> {column_position} - 1] =~ s/SYS_OP_C2C/TO_CHAR/g;}, uc_table_name ($options -> {table}));
                SELECT 
                        user_indexes.index_name
                        , user_ind_expressions.column_expression
                        , user_ind_expressions.column_position
                FROM 
                        user_indexes
                        INNER JOIN user_ind_expressions ON user_ind_expressions.index_name = user_indexes.index_name
                WHERE
                        user_indexes.index_type LIKE '%NORMAL%'
                        AND user_indexes.table_name = ?
EOS
        my $existing = {};
         
        while (my ($global_name, $parts) = each %k) {
         
                my $i = {
                 
                        global_name => $global_name,
                         
                        parts       => $parts,
                         
                        def         => join ', ', @$parts,
                 
                };
                 
                next if $i -> {def} eq 'id';
         
                $existing -> {$i -> {def}} = $i;
         
        }
        return $existing;
}
#############################################################################
sub wish_to_update_demands_for_table_keys {
        my ($old, $new, $options) = @_;
         
        $new -> {global_name} = $old -> {global_name};
}
#############################################################################
sub wish_to_schedule_modifications_for_table_keys {
        my ($old, $new, $todo, $options) = @_;
        push @{$todo -> {create}}, $new;
         
}
#############################################################################
sub wish_to_actually_create_table_keys {
        my ($items, $options) = @_;
         
        if ($options -> {table} =~ /^_/) {
         
                $options -> {table} = '"' . $options -> {table} . '"';
         
        }
         
        foreach my $i (@$items) {
         
                eval { sql_do (qq {DROP INDEX \"$i->{global_name}\"})};
                sql_do (qq {CREATE INDEX \"$i->{global_name}\" ON $options->{table} ($i->{def})});
         
        }
         
}
1;