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dramatically improves search speed when searching something OR somethingelse

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tipaul 2003-07-03 12:48:33 +00:00
parent 1a1c3332af
commit 62361b7308
1 changed files with 35 additions and 21 deletions
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52
C4/SearchMarc.pm
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@ -68,26 +68,29 @@ sub catalogsearch {
my $sql_tables; # will contain marc_subfield_table as m1,...
my $sql_where1; # will contain the "true" where
my $sql_where2; # will contain m1.bibid=m2.bibid
my $nb=1;
my $nb_active=0; # will contain the number of "active" entries. and entry is active is a value is provided.
my $nb_table=1; # will contain the number of table. ++ on each entry EXCEPT when an OR is provided.
for(my $i=0; $i<=@$value;$i++) {
if (@$value[$i]) {
if ($nb==1) {
$nb_active++;
if ($nb_active==1) {
if (@$operator[$i] eq "start") {
$sql_tables .= "marc_subfield_table as m$nb,";
$sql_tables .= "marc_subfield_table as m$nb_table,";
$sql_where1 .= "@$excluding[$i](m1.subfieldvalue like '@$value[$i]%'";
if (@$tags[$i]) {
$sql_where1 .=" and m1.tag=@$tags[$i] and m1.subfieldcode='@$subfields[$i]'";
}
$sql_where1.=")";
} elsif (@$operator[$i] eq "contains") {
$sql_tables .= "marc_word as m$nb,";
$sql_where1 .= "@$excluding[$i](m1.word ='@$value[$i]'";
$sql_tables .= "marc_word as m$nb_table,";
$sql_where1 .= "@$excluding[$i](m1.word like '@$value[$i]%'";
if (@$tags[$i]) {
$sql_where1 .=" and m1.tag=@$tags[$i] and m1.subfieldid='@$subfields[$i]'";
}
$sql_where1.=")";
} else {
$sql_tables .= "marc_subfield_table as m$nb,";
$sql_tables .= "marc_subfield_table as m$nb_table,";
$sql_where1 .= "@$excluding[$i](m1.subfieldvalue @$operator[$i] '@$value[$i]' ";
if (@$tags[$i]) {
$sql_where1 .=" and m1.tag=@$tags[$i] and m1.subfieldcode='@$subfields[$i]'";
@ -96,32 +99,43 @@ sub catalogsearch {
}
} else {
if (@$operator[$i] eq "start") {
$sql_tables .= "marc_subfield_table as m$nb,";
$sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb.subfieldvalue like '@$value[$i]%'";
$nb_table++;
$sql_tables .= "marc_subfield_table as m$nb_table,";
$sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb_table.subfieldvalue like '@$value[$i]%'";
if (@$tags[$i]) {
$sql_where1 .=" and m$nb.tag=@$tags[$i] and m$nb.subfieldcode='@$subfields[$i])";
$sql_where1 .=" and m$nb_table.tag=@$tags[$i] and m$nb_table.subfieldcode='@$subfields[$i])";
}
$sql_where1.=")";
$sql_where2 .= "m1.bibid=m$nb.bibid";
$sql_where2 .= "m1.bibid=m$nb_table.bibid";
} elsif (@$operator[$i] eq "contains") {
$sql_tables .= "marc_word as m$nb,";
$sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb.word='@$value[$i]'";
if (@$and_or[$i] eq 'and') {
$nb_table++;
$sql_tables .= "marc_word as m$nb_table,";
$sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb_table.word like '@$value[$i]%'";
if (@$tags[$i]) {
$sql_where1 .=" and m$nb.tag=@$tags[$i] and m$nb.subfieldid='@$subfields[$i]'";
$sql_where1 .=" and m$nb_table.tag=@$tags[$i] and m$nb_table.subfieldid='@$subfields[$i]'";
}
$sql_where1.=")";
$sql_where2 .= "m1.bibid=m$nb.bibid";
$sql_where2 .= "m1.bibid=m$nb_table.bibid";
} else {
$sql_tables .= "marc_subfield_table as m$nb,";
$sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb.subfieldvalue @$operator[$i] '@$value[$i]'";
$sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb_table.word like '@$value[$i]%'";
if (@$tags[$i]) {
$sql_where1 .=" and m$nb.tag=@$tags[$i] and m$nb.subfieldcode='@$subfields[$i]'";
$sql_where1 .=" and m$nb_table.tag=@$tags[$i] and m$nb_table.subfieldid='@$subfields[$i]'";
}
$sql_where2 .= "m1.bibid=m$nb.bibid";
$sql_where1.=")";
$sql_where2 .= "m1.bibid=m$nb_table.bibid";
}
} else {
$nb_table++;
$sql_tables .= "marc_subfield_table as m$nb_table,";
$sql_where1 .= "@$and_or[$i] @$excluding[$i](m$nb_table.subfieldvalue @$operator[$i] '@$value[$i]'";
if (@$tags[$i]) {
$sql_where1 .=" and m$nb_table.tag=@$tags[$i] and m$nb_table.subfieldcode='@$subfields[$i]'";
}
$sql_where2 .= "m1.bibid=m$nb_table.bibid";
$sql_where1.=")";
}
}
$nb++;
}
}
chop $sql_tables;