July 5, 2011 
Definition:
function get_meta_sql( $meta_query, $type, $primary_table, $primary_id_column, $context = null ) {}
Given a meta query, generates SQL clauses to be appended to a main query
Parameters
- array $meta_query: A meta query
- string $type: Type of meta
- string $primary_table
- string $primary_id_column
- object $context: (optional) The main query object
Return values
returns:‘join’ => $join_sql, ‘where’ => $where_sql )
Source code
function get_meta_sql( $meta_query, $type, $primary_table, $primary_id_column, $context = null ) {
$meta_query_obj = new WP_Meta_Query( $meta_query );
return $meta_query_obj->get_sql( $type, $primary_table, $primary_id_column, $context );
}
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