Steps to reproduce the issue

After applied PR #12313 there appears new errors.

Click on index and wait until indexing complete.

1. Then try to search some word in search field.

• ERROR: operator does not exist: timestamp without time zone ~ unknown LINE 4: ...e%' OR "l"."url" LIKE '%lime%' OR "l"."indexdate" LIKE '%li... ^ HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts

2. Click on Content Maps on the left panel. administrator/index.php?option=com_finder&view=maps

• ERROR: column "s.count_published" must appear in the GROUP BY clause or be used in an aggregate function LINE 1: SELECT a.,s.count_published,s.count_unpublished,COUNT(b.id)... ^ ERROR: column "s.count_published" must appear in the GROUP BY clause or be used in an aggregate function LINE 1: SELECT a.,s.count_published,s.count_unpublished,COUNT(b.id)... ^ ERROR: column "s.count_published" must appear in the GROUP BY clause or be used in an aggregate function LINE 1: SELECT a.*,s.count_published,s.count_unpublished,COUNT(b.id)... ^

Expected result

No errors.

Actual result

As above.

System information (as much as possible)

PHP 7.0.13-0ubuntu0.16.04.1
PostgreSQL 9.5.5