get_meta_sql()

get_meta_sql() — Given a meta query, generates SQL clauses to be appended to a main query.

Inputs: $meta_query (array): A meta query. $type (string): Type of meta. $primary_table (string): Primary database table name. $primary_id_column (string): Primary ID column name. $context (object): Optional. The main query object. Default null.

Returns string[]|false: Array containing JOIN and WHERE SQL clauses to append to the main query, or false if no table exists for the requested meta type. Field $join (string): SQL fragment to append to the main JOIN clause. Field $where (string): SQL fragment to append to the main WHERE clause.