MariaDB - Unable to select the specified database: xxxx - after running a stored routine -


i'm using mariadb 10.1.21 installed on ubuntu 16.4.0 , apache2 installed on same machine.

my problem while, after run procedure makes many inserts, error unable select specified database: xxxx

we changed both hdd ssd, eliminate suspicions latency. however, if server's speed has been increased, .. still mariadb error.

i mention error persists seconds. after that, web application running ok , error may reapers time time until restart mysql server.

the procedure body looks here: mysql insert table select another_table, inside procedure

any sugestion?

wherever possible, avoid using cursors. sql designed things in bulk, not 1 row @ time.

study constructs like

insert ... select ...;  create table ... select ...;

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