Bug #62054 [Fbk->NoF]: Column size is not reserved for all UNION

Edit report at https://bugs.php.net/bug.php?id=62054&edit=1 ID: 62054 Updated by: php-bugs@lists.php.net Reported by: s-php at ertel-net dot de Summary: Column size is not reserved for all UNION -Status: Feedback +Status: No Feedback Type: Bug Package: MySQLi related Operating System: Ubuntu PHP Version: 5.3.13 New Comment: No feedback was provided. The bug is being suspended because we assume that you are no longer experiencing the problem. If this is not the case and you are able to provide the information that was requested earlier, please do so and change the status of the bug back to "Open". Thank you. Previous Comments: ------------------------------------------------------------------------ [2012-07-02 18:47:42] s-php at ertel-net dot de Sorry, column names changed. But I guess this should be no problem for you. mysql> PREPARE x from "SELECT 'read' AS Action FROM friends UNION SELECT CASE mysql> status WHEN 0 THEN 'request-received' WHEN 1 THEN 'confirmed' WHEN 2 THEN mysql> 'x' END AS Action FROM friends"; Query OK, 0 rows affected (0.00 sec) Statement prepared mysql> execute x; Field 1: Action Catalog: def Database: `` Table: `` Org_table: `` Type: VAR_STRING Collation: utf8_general_ci (33) Length: 48 Max_length: 16 Decimals: 0 Flags: +------------------+ | Action | +------------------+ | read | | confirmed | | request-received | | x | +------------------+ 4 rows in set (0.00 sec) ------------------------------------------------------------------------ [2012-07-02 13:36:15] uw@php.net 99% sure: Server bug, not a client issue. Please, report column type information retrieved on the MySQL prompt when preparing the statement using SQL PREPARE and then executing it. Log in to the MySQL prompt using --column-type-info option to see the meta data reported by the server. ------------------------------------------------------------------------ [2012-05-17 13:28:21] s-php at ertel-net dot de Description: ------------ When I concatenate two queries with UNION an there are static strings in the queries, mysqli only reserves a big enough variable for the strings in the first query. If there are static strings in the other queries after the UNION, the strings are just cut off. Test script: --------------- $stmt = $this->mysqli->prepare("SELECT 'read' AS Action FROM tbl1 UNION SELECT CASE status WHEN 0 THEN 'request-received' WHEN 1 THEN 'confirmed' WHEN 2 THEN 'x' END AS Action FROM tbl2"); $stmt->bind_result($action); $stmt->execute(); while($stmt->fetch()) { echo $action . " "; } Expected result: ---------------- expected output is: read request-received confirmed Actual result: -------------- actual output is: read request-recei confirmed The "request-received" is cut off! ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=62054&edit=1