Oc-Content queries.log file recording

My one website is recording queries.log file under oc-content folder and it contains thousands following informations, what is wrong? Is this normal?

==================================================
= Date: May 10, 2020 May 10, 2020 =
= Total queries: 10 =
= Total queries time: 0.0058228969574 =

QUERY TIME 0.000657081604004


SELECT *
FROM (oc_t_preference)

QUERY TIME 0.00104999542236


SELECT *
FROM (oc_t_preference)

QUERY TIME 0.00082802772522


DELETE FROM oc_t_preference
WHERE s_name = ‘default_logo’
AND s_section = ‘osclasswizards_theme’

QUERY TIME 0.000749826431274


SELECT *
FROM (oc_t_preference)

QUERY TIME 0.000267028808594


SELECT pk_i_id, fk_c_country_code, s_name, b_active, s_slug
FROM (oc_t_region)
WHERE pk_i_id = ‘782070’

QUERY TIME 0.000776052474976


SELECT a., b., c.i_num_items
FROM (oc_t_category as a)
INNER JOIN oc_t_category_description as b ON (a.pk_i_id = b.fk_i_category_id AND b.fk_c_locale_code = “en_US”)
LEFT JOIN oc_t_category_stats as c ON a.pk_i_id = c.fk_i_category_id
WHERE b.s_name != ‘’ AND a.b_enabled = 1
ORDER BY i_position ASC

QUERY TIME 0.000521898269653


SELECT a.pk_i_id, a.i_position, b.*
FROM (oc_t_category as a)
INNER JOIN oc_t_category_description as b ON a.pk_i_id = b.fk_i_category_id
WHERE b.s_name != ‘’ AND a.b_enabled = 1
GROUP BY a.pk_i_id
ORDER BY i_position ASC

QUERY TIME 0.000505924224854


SELECT a., b., c.i_num_items
FROM (oc_t_category as a)
INNER JOIN oc_t_category_description as b ON (a.pk_i_id = b.fk_i_category_id AND b.fk_c_locale_code = “en_US”)
LEFT JOIN oc_t_category_stats as c ON a.pk_i_id = c.fk_i_category_id
WHERE b.s_slug = ‘swimming-courses’
ORDER BY i_position ASC

QUERY TIME 0.00025200843811


SELECT a.pk_i_id, a.i_position, b.*
FROM (oc_t_category as a)
INNER JOIN oc_t_category_description as b ON a.pk_i_id = b.fk_i_category_id
WHERE b.s_slug = ‘swimming-courses’
GROUP BY a.pk_i_id
ORDER BY i_position ASC

QUERY TIME 0.00021505355835


SELECT pk_i_id, fk_c_country_code, s_name, b_active, s_slug
FROM (oc_t_region)
WHERE pk_i_id = ‘782070’

Remove these from you ‘config.php’ file if found. These constants are for debugging purpose and shouldn’t be enabled on production websites.
https://docs.mindstellar.com/osclass-docs/developers/basic-osclass/debug-php-errors
https://docs.mindstellar.com/osclass-docs/developers/basic-osclass/debug-sql-queries

define('OSC_DEBUG', true) ;
define('OSC_DEBUG_LOG', true) ;
define('OSC_DEBUG_DB', true) ;
define('OSC_DEBUG_DB_LOG', true) ;
define('OSC_DEBUG_DB_EXPLAIN', true) ;