WP_Meta_Query::is_first_order_clause()
Method: Determines whether a query clause is first-order.
Source: wp-includes/class-wp-meta-query.php:260
WP_Meta_Query::parse_query_vars()
Method: Constructs a meta query based on ‘meta_*’ query vars
Source: wp-includes/class-wp-meta-query.php:271
WP_Meta_Query::get_cast_for_type()
Method: Returns the appropriate alias for the given meta type if applicable.
Source: wp-includes/class-wp-meta-query.php:319
WP_Meta_Query::get_sql()
Method: Generates SQL clauses to be appended to a main query.
Source: wp-includes/class-wp-meta-query.php:357
get_meta_sql
Filter Hook: Filters the meta query’s generated SQL.
Source: wp-includes/class-wp-meta-query.php:395