Ticket #51740: 51740.diff

src/wp-includes/class-wp-meta-query.php

@@ -679 +679 @@
                                         case 'REGEXP':
                                                 $operator = $meta_compare_key;
                                                 if ( isset( $clause['type_key'] ) && 'BINARY' === strtoupper( $clause['type_key'] ) ) {
-                                                        $cast = 'BINARY';
+                                                        $cast     = 'BINARY';
+                                                        $meta_key = "CAST($alias.meta_key AS BINARY)";
                                                 } else {
-                                                        $cast = '';
+                                                        $cast     = '';
+                                                        $meta_key = "$alias.meta_key";
                                                 }
-                                                $where = $wpdb->prepare( "$alias.meta_key $operator $cast %s", trim( $clause['key'] ) ); // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
+                                                $where = $wpdb->prepare( "$meta_key $operator $cast %s", trim( $clause['key'] ) ); // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared
                                                 break;
 
                                         case '!=':
@@ -705 +707 @@
                                         case 'NOT REGEXP':
                                                 $operator = $meta_compare_key;
                                                 if ( isset( $clause['type_key'] ) && 'BINARY' === strtoupper( $clause['type_key'] ) ) {
-                                                        $cast = 'BINARY';
+                                                        $cast     = 'BINARY';
+                                                        $meta_key = "CAST($subquery_alias.meta_key AS BINARY)";
                                                 } else {
-                                                        $cast = '';
+                                                        $cast     = '';
+                                                        $meta_key = "$subquery_alias.meta_key";
                                                 }
 
-                                                $meta_compare_string = $meta_compare_string_start . "AND $subquery_alias.meta_key REGEXP $cast %s " . $meta_compare_string_end;
+                                                $meta_compare_string = $meta_compare_string_start . "AND $meta_key REGEXP $cast %s " . $meta_compare_string_end;
                                                 $where               = $wpdb->prepare( $meta_compare_string, $clause['key'] ); // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
                                                 break;
                                 }