[PATCH 07/10] search: fix compatibility with Debian wheezy

[Eric Wong <e@80x24.org>]

Specifying the "d:" field only worked for
NumberValueRangeProcessor in older versions of Xapian, such
as the one in Debian wheezy (libsearch-xapian-perl=1.2.10.0-1)

This slipped through since I rarely use wheezy, anymore, and
perhaps nobody else does, either.  Perhaps wheezy support may be
dropped, soon.

Unfortunately, this requires a schema version bump.
---
 lib/PublicInbox/Search.pm    | 5 +++--
 lib/PublicInbox/SearchIdx.pm | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/lib/PublicInbox/Search.pm b/lib/PublicInbox/Search.pm
index c8e297f..ceee39a 100644
--- a/lib/PublicInbox/Search.pm
+++ b/lib/PublicInbox/Search.pm
@@ -38,7 +38,8 @@ use constant {
 	# 9 - disable Message-ID compression (SHA-1)
 	# 10 - optimize doc for NNTP overviews
 	# 11 - merge threads when vivifying ghosts
-	SCHEMA_VERSION => 11,
+	# 12 - change YYYYMMDD value column to numeric
+	SCHEMA_VERSION => 12,
 
 	# n.b. FLAG_PURE_NOT is expensive not suitable for a public website
 	# as it could become a denial-of-service vector
@@ -221,7 +222,7 @@ sub qp {
 	$qp->set_stemmer($self->stemmer);
 	$qp->set_stemming_strategy(STEM_SOME);
 	$qp->add_valuerangeprocessor(
-		Search::Xapian::StringValueRangeProcessor->new(YYYYMMDD, 'd:'));
+		Search::Xapian::NumberValueRangeProcessor->new(YYYYMMDD, 'd:'));
 
 	while (my ($name, $prefix) = each %bool_pfx_external) {
 		$qp->add_boolean_prefix($name, $prefix);
diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
index 0e499ad..86be9ed 100644
--- a/lib/PublicInbox/SearchIdx.pm
+++ b/lib/PublicInbox/SearchIdx.pm
@@ -117,7 +117,7 @@ sub add_values ($$$) {
 			$smsg->{mime}->body_raw =~ tr!\n!\n!);
 
 	my $yyyymmdd = strftime('%Y%m%d', gmtime($ts));
-	$doc->add_value(&PublicInbox::Search::YYYYMMDD, $yyyymmdd);
+	add_val($doc, PublicInbox::Search::YYYYMMDD, $yyyymmdd);
 }
 
 sub index_users ($$) {
-- 
EW