select count(*) from bt_data where display=1 and showdate between '1900-01-01' and '1959-12-31' and country @> ARRAY['加拿大'] and ''=any(tags) 
FATAL:  terminating connection due to administrator command
SSL connection has been closed unexpectedly
<br />
<b>Fatal error</b>:  Uncaught TypeError: pg_fetch_object(): Argument #1 ($result) must be of type PgSql\Result, false given in /www/btba_www/class/cls_postgresql.php:153
Stack trace:
#0 /www/btba_www/class/cls_postgresql.php(153): pg_fetch_object()
#1 /www/btba_www/class/cls_postgresql.php(118): cls_postgresql-&gt;selectCount()
#2 /www/btba_www/controller/clr_filter.php(173): cls_postgresql-&gt;select()
#3 /www/btba_www/index.php(20): clr_filter-&gt;index()
#4 {main}
  thrown in <b>/www/btba_www/class/cls_postgresql.php</b> on line <b>153</b><br />