Bug #79664 [NEW]: PDOStatement::getColumnMeta should fail predictably for an empty result set

From: mic at kwayisi dot org Operating system: Windows PHP version: 7.4.6 Package: PDO SQLite Bug Type: Bug Bug description:PDOStatement::getColumnMeta should fail predictably for an empty result set Description: ------------ PDOStatement::getColumnMeta throws a "column index out of range" error if the result set is empty. After calling PDOStatement::columnCount to confirm that there are columns in the result set, subsequent call to PDOStatement::getColumnMeta shouldn't produce an error even if its implementation does not enable it to fetch the requested column (because there are no rows). Test script: --------------- $pdo = new PDO('sqlite:', null, null, [ PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, ]); $stmt = $pdo->query('select 1 where 0'); if ($stmt->columnCount()) var_dump($stmt->getColumnMeta(0)); Expected result: ---------------- array(6) { ["native_type"]=> string(7) "integer" ["flags"]=> array(0) { } ["name"]=> string(1) "1" ["len"]=> int(4294967295) ["precision"]=> int(0) ["pdo_type"]=> int(2) } Actual result: -------------- ERROR: SQLSTATE[HY000]: General error: 25 column index out of range -- Edit bug report at https://bugs.php.net/bug.php?id=79664&edit=1 -- Fix committed: https://bugs.php.net/fix.php?id=79664&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=79664&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=79664&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=79664&r=needscript Try newer version: https://bugs.php.net/fix.php?id=79664&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=79664&r=support Expected behavior: https://bugs.php.net/fix.php?id=79664&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=79664&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=79664&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=79664&r=globals PHP version support discontinued: https://bugs.php.net/fix.php?id=79664&r=phptooold Daylight Savings: https://bugs.php.net/fix.php?id=79664&r=dst IIS Stability: https://bugs.php.net/fix.php?id=79664&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=79664&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=79664&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=79664&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=79664&r=mysqlcfg