[CWB] Error with simple queries only in cqpweb 3.3.17, tertiary annotation may be a problem

[Jörg Knappen]

A happy new year to all.

A user reported an error on our cqpweb installation. It occurs with 
simple queries on some corpora and may have something to do with the 
existence of a tertiary annotation.

The corpus in question has a tertiary annotation, but a Tertiary 
Annotation Mapping Table is not in use for this corpus.

Any simple query just fails, giving the end user a white frame on the 
screen and throwing an internal server error (500) in the Apache2 log.

In the error log I find the following message:

PHP Fatal error:  Uncaught TypeError: get_tertiary_mapping_table(): 
Argument #1 ($mapping_table_handle) must be of type string, null given, 
called in /var/www/html/cqpweb/lib/query-lib.php on line 428 and defined 
in /var/www/html/cqpweb/lib/query-lib.php:678\nStack trace:\n#0 
/var/www/html/cqpweb/lib/query-lib.php(428): 
get_tertiary_mapping_table()\n#1 
/var/www/html/cqpweb/lib/query-lib.php(369): 
process_simple_query_new()\n#2 
/var/www/html/cqpweb/lib/concordance-ui.php(319): 
process_simple_query()\n#3 /var/www/html/cqpweb/exe/concordance.php(1): 
require('...')\n#4 {main}\n  thrown in 
/var/www/html/cqpweb/lib/query-lib.php on line 678, referer: 
https://corpora.clarin-d.uni-saarland.de/cqpweb/epic_uds_en_alig_pos/

CQP queries work just fine and don't have the problem.

Greetings from Saarbrücken,

Jörg Knappen