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MS SQL: Compute arrays in insertUpdate only once

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This commit is contained in:
Jakub Vrana
2025-02-26 22:35:00 +01:00
parent 89b097c699
commit 81340ff7e5
1 changed files with 16 additions and 15 deletions
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31
adminer/drivers/mssql.inc.php
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@@ -187,27 +187,28 @@ if (isset($_GET["mssql"])) {
function insertUpdate($table, $rows, $primary) {
$fields = fields($table);
$update = array();
$where = array();
$set = reset($rows);
$columns = "c" . implode(", c", range(1, count($set)));
$c = 0;
foreach ($set as $key => $val) {
$c++;
$name = idf_unescape($key);
if (!$fields[$name]["auto_increment"]) {
$update[] = "$key = c$c";
}
if (isset($primary[$name])) {
$where[] = "$key = c$c";
}
}
$values = array();
foreach ($rows as $set) {
$update = array();
$where = array();
$columns = "c" . implode(", c", range(1, count($set)));
$c = 0;
foreach ($set as $key => $val) {
$c++;
$name = idf_unescape($key);
if (!$fields[$name]["auto_increment"]) {
$update[] = "$key = c$c";
}
if (isset($primary[$name])) {
$where[] = "$key = c$c";
}
}
$values[] = "(" . implode(", ", $set) . ")";
}
queries("SET IDENTITY_INSERT " . table($table) . " ON");
$return = queries("MERGE " . table($table) . " USING (VALUES\n\t" . implode(",\n\t", $values) . "\n) AS source ($columns) ON " . implode(" AND ", $where) //! source, c1 - possible conflict
. "\nWHEN MATCHED THEN UPDATE SET " . implode(", ", $update)
. ($update ? "\nWHEN MATCHED THEN UPDATE SET " . implode(", ", $update) : "")
. "\nWHEN NOT MATCHED THEN INSERT (" . implode(", ", array_keys($set)) . ") VALUES ($columns);" // ; is mandatory
);
queries("SET IDENTITY_INSERT " . table($table) . " OFF");