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-rw-r--r--lib/PublicInbox/Over.pm22
1 files changed, 21 insertions, 1 deletions
diff --git a/lib/PublicInbox/Over.pm b/lib/PublicInbox/Over.pm
index 06ea439d..587e0516 100644
--- a/lib/PublicInbox/Over.pm
+++ b/lib/PublicInbox/Over.pm
@@ -7,7 +7,7 @@
 package PublicInbox::Over;
 use strict;
 use v5.10.1;
-use DBI;
+use DBI qw(:sql_types); # SQL_BLOB
 use DBD::SQLite;
 use PublicInbox::Smsg;
 use Compress::Zlib qw(uncompress);
@@ -349,4 +349,24 @@ sub check_inodes {
         }
 }
 
+sub blob_exists {
+        my ($self, $oidhex) = @_;
+        if (wantarray) {
+                my $sth = $self->dbh->prepare_cached(<<'', undef, 1);
+SELECT docid FROM xref3 WHERE oidbin = ?
+
+                $sth->bind_param(1, pack('H*', $oidhex), SQL_BLOB);
+                $sth->execute;
+                my $tmp = $sth->fetchall_arrayref;
+                map { $_->[0] } @$tmp;
+        } else {
+                my $sth = $self->dbh->prepare_cached(<<'', undef, 1);
+SELECT COUNT(*) FROM xref3 WHERE oidbin = ?
+
+                $sth->bind_param(1, pack('H*', $oidhex), SQL_BLOB);
+                $sth->execute;
+                $sth->fetchrow_array;
+        }
+}
+
 1;