X-Git-Url: https://jasonwoof.com/gitweb/?p=wfpl.git;a=blobdiff_plain;f=db.php;fp=db.php;h=5a9ef89bbf06d5100b5d8832981b76b85876a308;hp=2dccfbcef63bafc5699c14e10f8c4e4a93a1f28b;hb=19e2f5c79c22fd1585ca6569ad25e7ecf06ff7f0;hpb=7fb2927d0a3dd3411285f9dc153d50d4bbc9ac6e

diff --git a/db.php b/db.php
index 2dccfbc..5a9ef89 100644
--- a/db.php
+++ b/db.php
@@ -466,10 +466,22 @@ function db_reposition_respace($table, $field, $where = '') {
 		return;
 	}
 	$inc = floor(DB_ORD_MAX / ($c + 1));
-	$cur = $inc;
-	foreach($ids as $id) {
-		db_update($table, $field, $cur, 'where id=%i', $id);
-		$cur += $inc;
+	$ord = $inc;
+	$count = count($ids);
+	for ($i = 0; $i < $count; $i += 1000) {
+		$values = [];
+		$j_max = min($count, $i + 1000);
+		for ($j = $i; $j < $j_max; ++$j) {
+			$id = $ids[$j];
+			$values[] = "($id,$ord)";
+			$ord += $inc;
+		}
+		$sql =
+			"insert into $table (id,$field) values "
+			. implode(',', $values)
+			. " on duplicate key update $field=VALUES($field)"
+		;
+		db_send_query($sql);
 	}
 }