| #43664 | $wpdb->get_results fails in specific cases with non-latin charaters in where clause | | normal | normal | Awaiting Review | defect (bug) | | 04/08/2018 |
| #46923 | $wpdb->get_var() — empty sting becomes a NULL | | normal | normal | Awaiting Review | defect (bug) | | 04/15/2019 |
| #39811 | Bug maybe_unserialize() broke mysql data. | | normal | normal | Awaiting Review | defect (bug) | | 02/20/2017 |
| #60077 | Class UnexpectedValueException not found | | normal | critical | Awaiting Review | defect (bug) | | 12/14/2023 |
| #60505 | Column names in wpdb->insert aren't sanitized. | | normal | normal | Awaiting Review | defect (bug) | | 02/12/2024 |
| #58559 | Database error bug in wordpress current version | | normal | normal | Awaiting Review | defect (bug) | | 07/03/2023 |
| #53958 | Database: wp_postmeta - meta_key index | | normal | major | Awaiting Review | defect (bug) | | 08/25/2021 |
| #57385 | Disable foreign key checks when dropping tables inside wp_uninitialize_site() function | johnjamesjacoby* | normal | normal | Awaiting Review | defect (bug) | dev-feedback | 01/12/2024 |
| #40953 | Empty values are handled inconsistently between wpdb->get_results() and wpdb->get_col() | | normal | normal | Awaiting Review | defect (bug) | dev-feedback | 01/17/2025 |
| #55907 | Failed to insert log entry: value too long | | normal | normal | Awaiting Review | defect (bug) | | 06/03/2022 |
| #52210 | File URL gets saved even when upload fails | | normal | major | Awaiting Review | defect (bug) | | 02/09/2021 |
| #61889 | Function dbDelta() splits queries on semi-colon in column COMMENT and table COMMENT | | normal | normal | Awaiting Review | defect (bug) | has-patch | 04/28/2025 |
| #58286 | Growing database due to unnecessary transients containing "g_url_details_response_" | | normal | critical | Awaiting Review | defect (bug) | | 05/11/2023 |
| #55610 | HTTP response should not be 200 when returning error-page | | normal | major | Awaiting Review | defect (bug) | | 08/22/2025 |
| #54836 | Huge error logs filled with "WordPress database error Illegal mix of collations" errors caused by spammers | | normal | critical | Awaiting Review | defect (bug) | | 03/19/2025 |
| #50789 | Improve WPDB logic around information_schema | | normal | normal | Awaiting Review | defect (bug) | | 06/11/2021 |
| #56260 | In case of missing primary key on wp_posts, Media uploader gives false feedback indicating folder permissions are missing, where in fact database structure is malformed. | | normal | minor | Awaiting Review | defect (bug) | | 10/26/2022 |
| #44973 | Issues with $wpdb->get_col_info | | normal | normal | Awaiting Review | defect (bug) | has-patch | 09/23/2018 |
| #59974 | MAX_JOIN_SIZE wp-blog-header.php | | normal | minor | Awaiting Review | defect (bug) | | 11/27/2023 |
| #62976 | Multiple queries executing - Bulk deletion | | normal | critical | Awaiting Review | defect (bug) | | 02/17/2025 |
| #62104 | Multisite triggers UPDATE queries on _sitemeta of almost 150k character | | normal | normal | Awaiting Review | defect (bug) | has-patch | 09/24/2024 |
| #54834 | Mysql gone away when importing DB on create wp_posts indexes | | normal | blocker | Awaiting Review | defect (bug) | | 02/17/2023 |
| #58965 | No luck running WP when running PHP 8.2.8 + mysql Ver 15.1 | | normal | normal | Awaiting Review | defect (bug) | | 08/02/2023 |
| #49482 | Non-english slug can sometimes cause an error in WordPress query | | normal | normal | Awaiting Review | defect (bug) | | 02/20/2020 |
| #57283 | Postmeta - Performance Improvement - Woocommerce | | normal | critical | Awaiting Review | defect (bug) | | 12/06/2022 |
| #53033 | Remove comments, ping, to_ping columns from posts table | | normal | normal | Awaiting Review | defect (bug) | | 04/15/2021 |
| #41278 | SQL_CALC_FOUND_ROWS slow query | | normal | normal | Awaiting Review | defect (bug) | | 07/19/2017 |
| #51486 | The add_option function should not be able to update existing rows in the database. | | normal | normal | Awaiting Review | defect (bug) | needs-unit-tests | 06/09/2022 |
| #64130 | Type error in /wp-includes/class-wpdb.php | | normal | normal | Awaiting Review | defect (bug) | | 10/22/2025 |
| #39273 | Updating to 4.7 can break serialized data because $wpdb->determine_charset now forces utf8 when DB_CHARSET is set to utf8mb4 | | normal | normal | Awaiting Review | defect (bug) | dev-feedback | 03/15/2019 |
| #30795 | Upgrade bug affecting indexing | | normal | normal | Awaiting Review | defect (bug) | | 03/22/2019 |
| #59836 | Using the pre_get_table_charset filter ensures wpdb->col_meta never gets populated | | normal | normal | Awaiting Review | defect (bug) | has-patch | 12/18/2025 |
| #43589 | WPDB Update change NULL values to acceptable values | | normal | normal | Awaiting Review | defect (bug) | has-patch | 01/17/2019 |
| #53320 | Why delete_metadata and update_metadata slow performance? | | normal | normal | Awaiting Review | defect (bug) | | 03/26/2024 |
| #57072 | WordPress 6.1 uses wrong database collation | | normal | normal | Awaiting Review | defect (bug) | | 11/11/2022 |
| #58133 | WordPress database error Illegal mix of collations | | normal | major | Awaiting Review | defect (bug) | | 04/24/2023 |
| #49785 | Wrong result / duplicates in query when using MariaDB | | normal | normal | Awaiting Review | defect (bug) | | 04/03/2020 |
| #46932 | dbDelta does not account for MySQL keywords being used as key names | | normal | minor | Awaiting Review | defect (bug) | | 04/16/2019 |
| #46452 | dbDelta given the same PRIMARY KEY and normal KEY produces no error, reports table created successfully, but the table is not created | | normal | trivial | Awaiting Review | defect (bug) | | 03/09/2019 |
| #46146 | dbDelta not parsing enum correctly | | normal | normal | Awaiting Review | defect (bug) | | 11/17/2022 |
| #46145 | dbDelta runs same updates on every execution | | normal | normal | Awaiting Review | defect (bug) | | 01/30/2019 |
| #36924 | dbDelta(): Support more than one whitespace between field name and its type definition | | normal | normal | Awaiting Review | defect (bug) | | 08/10/2018 |
| #57149 | get_table_from_query() doesn't properly handle a prepared escape_like() table name | | normal | normal | Awaiting Review | defect (bug) | | 01/04/2023 |
| #46739 | post attributes order not working correctly | | normal | normal | Awaiting Review | defect (bug) | | 03/30/2019 |
| #46625 | username and password automatically change to dexter | | normal | normal | Awaiting Review | defect (bug) | | 03/24/2019 |
| #57000 | wp_usermeta table is emptied because of a wrong query being executed | | normal | normal | Awaiting Review | defect (bug) | | 11/04/2022 |
| #63751 | wpdb->set_prefix() throws deprecation notice for preg_match() when setup-config.php is loaded | | normal | minor | Awaiting Review | defect (bug) | | 08/22/2025 |
| #61338 | wpdb::prepare function null value convert to empty String | | normal | normal | Awaiting Review | defect (bug) | | 10/02/2024 |
| #49363 | wpdb::query() does not detect LOAD DATA as an insert statement type | | normal | normal | Awaiting Review | defect (bug) | has-patch | 02/05/2020 |
| #47818 | $wpdb should update ->insert_id also when `LAST_INSERT_ID(...)` is found | | normal | normal | Awaiting Review | enhancement | | 08/02/2019 |
| #55202 | A proper (error) message should be show when mysql setting autocommit=0 | | normal | normal | Awaiting Review | enhancement | | 02/19/2022 |
| #41944 | Add %u support to wpdb->prepare | | normal | normal | Awaiting Review | enhancement | | 09/21/2017 |
| #60254 | Add filter to class-wpdb.php#query that allows to return data from filter return value | | normal | normal | Awaiting Review | enhancement | | 01/15/2024 |
| #46210 | Add helpers for default/empty datetime value | | normal | normal | Awaiting Review | enhancement | has-patch | 02/24/2023 |
| #59106 | Add secondary index on `wp_posts` table to improve media queries performance | | normal | normal | Awaiting Review | enhancement | | 08/15/2023 |
| #61856 | Add support for MySQL SSL connections | | normal | normal | Awaiting Review | enhancement | has-patch | 08/13/2024 |
| #54627 | Adding More Timestamp columns to database | | normal | normal | Awaiting Review | enhancement | | 12/14/2021 |
| #45354 | Adding index for meta_key and post_id in postmeta | | normal | normal | Awaiting Review | enhancement | dev-feedback | 06/24/2024 |
| #52527 | Better RAM handling in wp-db.php | | normal | normal | Awaiting Review | enhancement | | 02/15/2021 |
| #56259 | Database Repair doesn't check for missing primary keys / A.I. | | normal | minor | Awaiting Review | enhancement | | 03/09/2023 |
| #41956 | Errno in $wpdb | | normal | normal | Awaiting Review | enhancement | has-patch | 08/17/2018 |
| #39748 | Function to insert or update DB value | | normal | normal | Awaiting Review | enhancement | | 10/29/2017 |
| #43019 | Hook to validate post form data before save | | normal | major | Awaiting Review | enhancement | has-patch | 10/28/2021 |
| #44292 | Make use of protected process_fields | | normal | normal | Awaiting Review | enhancement | | 06/01/2018 |
| #46565 | Mixed engine in tables, could bring to major WP failure! Also there is a small fix that could avoid that. | | normal | normal | Awaiting Review | enhancement | | 03/20/2019 |
| #58826 | Please add a default post relations table | | normal | critical | Awaiting Review | enhancement | | 07/17/2023 |
| #44386 | Problem with utf8mb4_unicode_ci collation for arabic content | | normal | major | Awaiting Review | enhancement | has-patch | 06/17/2018 |
| #54324 | Rename Table Function - maybe_rename_table() | | normal | normal | Awaiting Review | enhancement | has-patch | 01/09/2023 |
| #54560 | Return null from wpdb::get_results when query fails | | normal | normal | Awaiting Review | enhancement | has-patch | 12/02/2021 |
| #58180 | Specify the REGEXP format for meta_query | | normal | trivial | Awaiting Review | enhancement | needs-docs | 11/19/2025 |
| #61604 | Split `wp_insert_post` in two | | normal | minor | Awaiting Review | enhancement | | 07/09/2024 |
| #47994 | The additions of a new wp_posts table columns called post_level and post_patriarch | | normal | normal | Awaiting Review | enhancement | | 09/06/2019 |
| #41054 | Use sargable date filtering where possible | | normal | trivial | Awaiting Review | enhancement | | 12/05/2024 |
| #40150 | VARCHAR/TEXT inefficiencies | | normal | normal | Awaiting Review | enhancement | | 03/14/2017 |
| #55938 | WP prefix on installation - instructions to be indicated | | normal | minor | Awaiting Review | enhancement | | 06/07/2022 |
| #42703 | WP_Query: Swap parsing date into own method | | normal | normal | Awaiting Review | enhancement | | 01/16/2019 |
| #41281 | attachment_url_to_postid results in very slow query | joemcgill* | normal | normal | Awaiting Review | enhancement | | 07/18/2024 |
| #8924 | autoload should be boolean in add_option() | | lowest | normal | Awaiting Review | enhancement | | 03/15/2019 |
| #40357 | dbDelta can't change primary keys, create AUTO_INCREMENT columns and doesn't make significant index changes | | normal | normal | Awaiting Review | enhancement | needs-unit-tests | 04/04/2017 |
| #49654 | maybe_drop_table | | normal | normal | Awaiting Review | enhancement | | 04/07/2023 |
| #46576 | short-circuit filter for dbDelta | | normal | normal | Awaiting Review | enhancement | | 03/20/2019 |
| #58871 | support uca14.0.0 collation in database where available | | normal | normal | Awaiting Review | enhancement | has-patch | 09/30/2025 |
| #63734 | wpdb::prepare() should reject invalid schema object names | | normal | normal | Awaiting Review | enhancement | has-patch | 07/22/2025 |
| #62512 | Add "Learn WordPress" Links to the "WordPress Events and News" Dashboard Widget | | normal | normal | Awaiting Review | feature request | has-patch | 05/26/2025 |
| #46287 | Add insert_ignore() method to wpdb to avoid unecessary boilerplate code | | normal | normal | Awaiting Review | feature request | has-patch | 05/26/2025 |
| #58694 | Enhancement in wordpress Database API | | normal | normal | Awaiting Review | feature request | | 08/30/2023 |
| #54070 | Increase CPT "machine name" limit from its current maximum of 20 characters. | | normal | normal | Awaiting Review | feature request | dev-feedback | 11/08/2024 |
| #62575 | Prints SQL/DB error limit last_query too long | | normal | normal | Awaiting Review | feature request | | 11/26/2024 |
| #54235 | Script for handling metadata in wp_postmeta | | normal | normal | Awaiting Review | feature request | needs-docs | 10/08/2021 |
| #59281 | Support for Database Cursor | | normal | normal | Awaiting Review | feature request | | 09/27/2023 |
| #51762 | Unix authentication support via unix_socket | | normal | normal | Awaiting Review | feature request | | 11/12/2020 |