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Improve speed of CSV import

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This commit is contained in:
Jakub Vrana
2013-07-09 11:34:12 -07:00
parent 9de402aaf0
commit 56b0917acd
8 changed files with 74 additions and 37 deletions
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7
adminer/select.inc.php
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@@ -175,6 +175,7 @@ if ($_POST && !$error) {
$affected = count($matches[0]);
begin();
$separator = ($_POST["separator"] == "csv" ? "," : ($_POST["separator"] == "tsv" ? "\t" : ";"));
$rows = array();
foreach ($matches[0] as $key => $val) {
preg_match_all("~((?>\"[^\"]*\")+|[^$separator]*)$separator~", $val . $separator, $matches2);
if (!$key && !array_diff($matches2[1], $cols)) { //! doesn't work with column names containing ",\n
@@ -186,12 +187,10 @@ if ($_POST && !$error) {
foreach ($matches2[1] as $i => $col) {
$set[idf_escape($cols[$i])] = ($col == "" && $fields[$cols[$i]]["null"] ? "NULL" : q(str_replace('""', '"', preg_replace('~^"|"$~', '', $col))));
}
$result = $driver->insertUpdate($TABLE, $set, $primary);
if (!$result) {
break;
}
$rows[] = $set;
}
}
$result = (!$rows || $driver->insertUpdate($TABLE, $rows, $primary));
if ($result) {
queries("COMMIT");
}