← Bugs over time

SQLancer is credited with 411 bugs reported in 2026, across 23 database systems, between 2026-01-03 and 2026-11-01. A further 3 reports were filed that year and rejected by the developers as invalid or duplicate; those are kept in the dataset and counted nowhere.

Which systems (23)

Dolt
113
DuckDB
103
TiDB
36
ClickHouse
29
CrateDB
25
MonetDB
19
Turso
18
Wadjet
16
CockroachDB
12
Databend
8
Virtuoso
6
Citus
4
SQLite
4
Apache Cloudberry
3
SeekDB
3
YugabyteDB
3
BharatDBMS
2
QuestDB
2
CnosDB
1
FalkorDB
1
Kyzo
1
MariaDB
1
sparq
1

Each system's own page carries its whole history rather than this year's share: Dolt, DuckDB, TiDB, ClickHouse, CrateDB, MonetDB, and 17 more.

How they break down

Who found them

Found by the SQLancer project
309
Found by someone outside the project
102

By status

Fixed
279
Open
132

By symptom

Unclassified
411

By technique

Technique not recorded
364
Ternary Logic Partitioning (TLP)
32
Non-optimizing Reference Engine Construction (NoREC)
9
Differential Query Plans (DQP)
3
Pivoted Query Synthesis (PQS)
2
Constant-Optimization-Driven Testing (CODDTest)
1

Why each bug counts

Filed by someone who runs SQLancer campaigns
251
The reproducer carries SQLancer's generated schema
81
The report names SQLancer
59
The report names a SQLancer oracle
20

Who reported them

Yibo-Dong
162
DerZc
65
wanteatfruit
50
LeMikaelF
16
derekmwright
16
suyZhong
13
fm4v
12
Manuel-Neuer1
9

Every bug reported in 2026 (414)

One row per report, newest first, each linking to the report itself. Rejected reports are marked and are not part of any count above.

<= ` and `>=` return rows where IS NULL on `dolt sql-server`)` has inconsistent behavior
Reported Report System Status Reporter
2026-11-01 Invalid CrossJoin in query plan Dolt fixed Zhaokun Xiang
2026-09-13 sql: ST_DWithin inverted join fails for POINT EMPTY geography input CockroachDB open DerZc
2026-09-12 `STREAM BOUNDED CURSOR` read reports rows to `count()` but returns no column values (`sum`, `GROU... ClickHouse open alexey-milovidov
2026-09-12 Correlated scalar subquery `(SELECT nan_col) IS NULL` returns wrong result under default `query_p... ClickHouse open qoega
2026-09-11 AST fuzzer: TLP Aggregate oracle mismatch with `STREAM BOUNDED UNORDERED CURSOR` ClickHouse open JasonLi-cn
2026-09-08 Wrong results: per-partition `GROUP BY` / `DISTINCT` / window skip the cross-partition merge for ... ClickHouse open fm4v
2026-09-07 Expression::HasParameter crashes planning a correlated subquery with a STRUCT-access join predicate DuckDB open suyZhong
2026-09-03 planner: inside a derived table with two or more unaliased relations every base scan is re-aliase... Wadjet fixed derekmwright
2026-09-03 planner: UNION ALL with two output columns of the same bare name in a branch binds the first to t... Wadjet fixed derekmwright
2026-09-03 pgwire: SELECT * returning zero rows sends no RowDescription — psql prints nothing, JDBC throws "... Wadjet fixed derekmwright
2026-09-03 [Bug] Planner: FailedAssertion "pselec >= 0.0 && pselec <= 1.0" in adjust_selectivity_for_nulltes... Apache Cloudberry open my-ship-it
2026-09-03 [Bug] ORCA: QD segfault in CExtendedStatsProcessor when extended statistics (dependencies) do not... Apache Cloudberry open my-ship-it
2026-09-03 [Bug] ORCA: "bogus index qualification" when a filter on an INCLUDE-only index column is pushed i... Apache Cloudberry open my-ship-it
2026-09-03 Bug: HAVING `count(*) FILTER (WHERE ref.bool)` is rewritten to `FILTER (WHERE dist.int)` on a two... Citus open Manuel-Neuer1
2026-08-31 With pseudo statistics, GROUP BY / DISTINCT over COALESCE(float_col) collapses rows into wrong gr... TiDB open Manuel-Neuer1
2026-08-31 Unexpected results when comparing a LIST column DuckDB open suyZhong
2026-08-31 Unexpected results when a sampled scan of an indexed column filtered by `IN (VALUES ...)` DuckDB open suyZhong
2026-08-31 Unexpected results of `UNION ALL` over two identical RIGHT JOINs with an `EXISTS` in the ON clause DuckDB open suyZhong
2026-08-31 INTERNAL Error: "Failed to bind column reference" for `unnest()` in a comma cross join DuckDB open suyZhong
2026-08-31 INTERNAL Error and SIGSEGV in string functions applied to `printf('%c', 255)` DuckDB fixed suyZhong
2026-08-28 exec: vectorized OrFilter reads an all-rows branch (nil Sel) as zero rows Wadjet fixed derekmwright
2026-08-28 HAVING () always evaluates false: MIN(1) > 0 and BOOL_AND(TRUE) exclude every grou... Wadjet fixed derekmwright
2026-08-28 GROUP BY + explicit JOIN: an ungrouped column from the joined table is not checked (SELECT silent... Wadjet fixed derekmwright
2026-08-28 FULL OUTER JOIN + aggregate: filtering by an always-true predicate changes the aggregate's answer... Wadjet fixed derekmwright
2026-08-27 Unexpected Left Join Result DuckDB fixed TheoristCoder
2026-08-25 HAVING with an aggregate predicate: an internal __having_0 alias leaks into results, and "agg(...... Wadjet fixed derekmwright
2026-08-25 GROUP BY present: checkUngrouped's own scope note is wrong — an ungrouped SELECT/HAVING column is... Wadjet fixed derekmwright
2026-08-25 CAST(int AS BOOLEAN) used as a WHERE filter always excludes every row, though the identical expre... Wadjet fixed derekmwright
2026-08-25 bug: `HAVING (AGG(col) = AGG(col))` keeps groups whose aggregate is NULL — the same self-comparis... Databend open Manuel-Neuer1
2026-08-25 bug: Correlated EXISTS relocated into a projection fails decorrelation with `Internal error 1001:... Databend fixed Manuel-Neuer1
2026-08-24 joinFlushSource.Close() dereferences a nil pipeline when Init() never ran, crashing the entire se... Wadjet fixed derekmwright
2026-08-24 Table manifest cached at first read is never invalidated: stale writes, and DROP+CREATE of the sa... Wadjet fixed derekmwright
2026-08-24 Pipeline.runParallel's firstErr atomic.Value panics on a concrete-type race between two workers' ... Wadjet fixed derekmwright
2026-08-24 Only the designed FatalEvalPanic class survives a query error — any other panic (index-out-of-ran... Wadjet fixed derekmwright
2026-08-24 HashJoin build-side panic (fatalEval, e.g. invalid int cast) crashes the entire server — unrecove... Wadjet fixed derekmwright
2026-08-24 CONCAT()/|| with a non-text argument after position 0 crashes the entire server (vecConcat indexe... Wadjet fixed derekmwright
2026-08-24 bug: correlated `EXISTS` with cross-type join keys (`INT = DECIMAL`) wrongly matches NULL probe k... Databend open Manuel-Neuer1
2026-08-24 Bug: DISTINCT over a JSON_EXISTS predicate returns different row counts when the predicate is in ... Citus fixed Manuel-Neuer1
2026-08-21 bug: LIKE with an empty-string pattern from a column reference matches any subject Databend fixed Manuel-Neuer1
2026-08-21 bug: EXISTS correlated subquery treats NULL probe key as the type's default value in LEFT SEMI ha... Databend fixed Manuel-Neuer1
2026-08-21 bug: CAST(FLOAT AS VARCHAR) returns different strings for the same value depending on whether EXI... Databend fixed Manuel-Neuer1
2026-08-21 `string_agg` leaves stale delimiters with row-dependent window delimiters CrateDB fixed Yibo-Dong
2026-08-21 UNION filter pushdown breaks branch types CrateDB fixed Yibo-Dong
2026-08-21 HashJoin keeps an intra-side predicate CrateDB open Yibo-Dong
2026-08-19 `CROSS JOIN … WHERE l.x = r.x` drops a correlated `Filter` after rewrite to HashJoin CrateDB fixed wanteatfruit
2026-08-19 REGEXP filter merged into `Collect` over an `INDEX OFF` text column matches no rows CrateDB fixed wanteatfruit
2026-08-18 `ROW_NUMBER` argument order ignores a singleton following frame DuckDB fixed Yibo-Dong
2026-08-18 `QUALIFY` volatile predicates are pushed below a window aggregate DuckDB open Yibo-Dong
2026-08-18 `NTILE` with argument `ORDER BY` fails on a future-only `ROWS` frame DuckDB fixed Yibo-Dong
2026-08-18 `MODE(... ORDER BY ...)` can use a stale tie-break value in a sliding ROWS frame DuckDB fixed Yibo-Dong
2026-08-18 Streaming `NTH_VALUE IGNORE NULLS` loses a found value DuckDB fixed Yibo-Dong
2026-08-18 Optimized window ordering mis-associates a volatile key with `LIST` input rows DuckDB open Yibo-Dong
2026-08-18 Dolt skips empty strings in GROUP_CONCAT before a window wrapper Dolt fixed Yibo-Dong
2026-08-18 Dolt returns NULL for a 25-hour TIME in a windowed TIME_TO_SEC call Dolt fixed Yibo-Dong
2026-08-18 Dolt panics when LOAD_FILE receives a numeric argument below a window Dolt fixed Yibo-Dong
2026-08-18 Dolt loses expression-index metadata in a windowed information_schema projection Dolt fixed Yibo-Dong
2026-08-18 Dolt keeps boolean true separate from integer 1 in recursive UNION DISTINCT Dolt fixed Yibo-Dong
2026-08-18 Dolt ignores default backslash escaping for wildcard characters in a window child Dolt open Yibo-Dong
2026-08-18 Dolt collides distinct text tuples in COUNT(DISTINCT ...) before a window wrapper Dolt fixed Yibo-Dong
2026-08-18 `array_agg` ignores a running window frame CrateDB fixed Yibo-Dong
2026-08-18 `SMALLINT` `RANGE` window boundaries raise `ClassCastException` CrateDB fixed Yibo-Dong
2026-08-18 Outer filter pushdown changes window results CrateDB fixed Yibo-Dong
2026-08-17 `prod` treats an all-NULL input differently from an empty input MonetDB open Yibo-Dong
2026-08-17 `field()` function returns multiple rows when the searched value appears more than once MonetDB fixed Yibo-Dong
2026-08-17 `NTH_VALUE` with a row-dependent `nth` returns a non-NULL value when the requested row is missing MonetDB open Yibo-Dong
2026-08-17 `LAG`/`LEAD` reuse the first default expression value at partition boundaries MonetDB open Yibo-Dong
2026-08-17 Window `GROUP_CONCAT` ignores aggregate `ORDER BY` MonetDB open Yibo-Dong
2026-08-17 Value functions lose an unordered `RANGE CURRENT ROW` frame MonetDB open Yibo-Dong
2026-08-17 Numeric `RANGE` frames cross interleaved partitions MonetDB open Yibo-Dong
2026-08-17 Numeric `RANGE NULLS LAST` includes the wrong rows MonetDB open Yibo-Dong
2026-08-17 Dolt uppercases a lowercase non-ASCII initial in SOUNDEX Dolt fixed Yibo-Dong
2026-08-17 Dolt swallows a child-expression evaluation error in SUM Dolt fixed Yibo-Dong
2026-08-17 Dolt returns a wrong result for REGEXP_LIKE across partitions Dolt open Yibo-Dong
2026-08-17 Dolt rejects a legal REGEXP_REPLACE position after the source Dolt fixed Yibo-Dong
2026-08-17 Dolt reaches an analyzer internal error for a legal correlated LEFT JOIN LATERAL Dolt open Yibo-Dong
2026-08-17 Dolt raises an internal child-count error for CURRENT_TIME(precision) Dolt fixed Yibo-Dong
2026-08-17 Dolt mis-evaluates a correlated anti-join over a derived ROW_NUMBER() result Dolt open Yibo-Dong
2026-08-17 Dolt ignores the PM marker in STR_TO_DATE Dolt fixed Yibo-Dong
2026-08-17 Dolt exposes a user INVISIBLE column through SELECT * Dolt fixed Yibo-Dong
2026-08-17 Dolt drops sql_select_limit Dolt open Yibo-Dong
2026-08-16 `MIN(GREATEST(, DATE)) GROUP BY` over a `(ROW_NUMBER() = 1)` filter view returns... TiDB open wanteatfruit
2026-08-16 Wrong `MEDIAN` / `QUANTILE_CONT` / `LIST` over an inner join DuckDB fixed wanteatfruit
2026-08-16 Dict-surviving hash join InternalException on a RIGHT join whose build is a nested-loop of two id... DuckDB open wanteatfruit
2026-08-16 `CEIL`/`FLOOR` of a windowed `DECIMAL` returns unexpected results Dolt fixed wanteatfruit
2026-08-16 NightlySQLancer: LIMIT 1 BY returned the same key twice under ORDER BY (not reproduced) ClickHouse open alexey-milovidov
2026-08-14 Grouped `REPEAT` over a `WITH` CTE returns a string; the same query on the table returns NULL TiDB open wanteatfruit
2026-08-14 `SUBSTR` ASCII fast path clamps a hugely negative start; Unicode path returns empty DuckDB fixed wanteatfruit
2026-08-14 WindowSelfJoinOptimizer returns wrong results when PARTITION BY contains duplicate keys DuckDB fixed wanteatfruit
2026-08-14 `NULL = ALL (empty)` drops the row when the compared column is a window output CrateDB fixed wanteatfruit
2026-08-14 Inconsistent behavior of `starts_with(col, '')` on a TEXT column CrateDB fixed wanteatfruit
2026-08-13 `ROUND(x, N)` with a large-magnitude negative `N` hangs CrateDB fixed wanteatfruit
2026-08-13 UNION ALL with an empty equi-join branch makes ORDER BY leak rows CrateDB fixed wanteatfruit
2026-08-13 Range predicates on a `NUMERIC`/DECIMAL column with `INDEX OFF` silently return zero rows CrateDB fixed wanteatfruit
2026-08-12 `ENUM` numeric predicates wrong through `UNION ALL` TiDB open wanteatfruit
2026-08-12 Inconsistent results from `REGEXP_REPLACE` on a `CACHE` table TiDB open wanteatfruit
2026-08-12 Segmentation fault on `AGE(...)` call in `GROUP BY` DuckDB fixed wanteatfruit
2026-08-11 Plan cache memory usage far exceeds limit and memory continues to grow after SQLancer stress test SeekDB open chyujing
2026-08-11 `ROW_NUMBER() <= k` triggers an `arg_min`/`arg_max` error DuckDB fixed wanteatfruit
2026-08-11 INTERNAL Error with `QUALIFY` over a view and a type cast DuckDB open wanteatfruit
2026-08-11 INTERNAL Error on a flag-joined view and `QUALIFY` DuckDB open wanteatfruit
2026-08-11 `STR_TO_DATE()` errors instead of propagating `NULL` Dolt fixed Yibo-Dong
2026-08-11 `ORDER BY` + huge `LIMIT` (≥ 2^62) panics Dolt fixed wanteatfruit
2026-08-11 `INET_NTOA` corrupts valid IPv4 values above signed 32-bit Dolt fixed Yibo-Dong
2026-08-11 `COUNT()` counts the wrong column on `dolt sql-server` Dolt fixed wanteatfruit
2026-08-11 Windowed recursive CTE names collide with a differently cased base table Dolt open Yibo-Dong
2026-08-11 Windowed `TRIM(LEADING FROM str)` is rejected by the parser Dolt fixed Yibo-Dong
2026-08-11 Windowed `HOUR()` returns `NULL` for a valid time-only value Dolt fixed Yibo-Dong
2026-08-11 Window expression de-duplication folds case-sensitive literals Dolt fixed Yibo-Dong
2026-08-11 UPDATE incorrectly permits a windowed target-table subquery Dolt open Yibo-Dong
2026-08-11 Nested multi-column VIEW + self `EXISTS` → ERROR 1105 column-count mismatch Dolt open wanteatfruit
2026-08-11 Nested CTE scope disappears inside a recursive CTE with a window query Dolt open Yibo-Dong
2026-08-11 Identical nondeterministic window expressions are incorrectly merged Dolt fixed Yibo-Dong
2026-08-11 Dolt: explicit Unicode-collation RANGE peers are split Dolt open Yibo-Dong
2026-08-11 Dolt: `DISTINCT` window output with a composite outer sort reaches a stale field index Dolt open Yibo-Dong
2026-08-11 Dolt window expression omits `LIKE ESCAPE` Dolt fixed Yibo-Dong
2026-08-11 Dolt reaches an internal error on invalid window `ORDER BY` alias. Dolt open Yibo-Dong
2026-08-11 Dolt reaches an internal error on grouped one-column input. Dolt open Yibo-Dong
2026-08-11 Dolt panics on recursive CTE column-arity error. Dolt fixed Yibo-Dong
2026-08-11 Dolt panics on empty `POLYGON` WKT Dolt fixed Yibo-Dong
2026-08-11 Dolt panics on empty `LIKE ... ESCAPE ''` within window expressions Dolt fixed Yibo-Dong
2026-08-11 Dolt panics on a numeric `FORMAT` locale from a window expression Dolt fixed Yibo-Dong
2026-08-11 Dolt panics on `ROUND` on a date-valued window result Dolt fixed Yibo-Dong
2026-08-11 Dolt panics on `RAND(NULL)` on a nil seed. Dolt fixed Yibo-Dong
2026-08-11 Dolt panics on `INET6_ATON` on a non-string SQL argument Dolt fixed Yibo-Dong
2026-08-11 Decimal `RANGE` offsets are rejected Dolt open Yibo-Dong
2026-08-11 Date-valued window arithmetic appends a zero-time suffix Dolt open Yibo-Dong
2026-08-11 Correlated `EXISTS` loses an empty aggregate row Dolt open Yibo-Dong
2026-08-11 CRC32 rejects a legal binary value produced by a window Dolt fixed Yibo-Dong
2026-08-10 INTERNAL Error when ASOF JOIN's left child is EXCEPT ALL / INTERSECT ALL DuckDB fixed wanteatfruit
2026-08-10 LOGICAL_ERROR (Code 49) in a three-way join with a VIEW ClickHouse fixed wanteatfruit
2026-08-10 Code 10 `NOT_FOUND_COLUMN_IN_BLOCK` for a right-side join column inside a lambda in `PREWHERE` ClickHouse fixed wanteatfruit
2026-08-09 `STDDEV_POP` / `VAR_*` over `BIGINT UNSIGNED` near `2^64` wrong on `UNION ALL` TiDB open wanteatfruit
2026-08-09 `RANK() <= constant` drops rows tied at the cutoff rank MonetDB open Yibo-Dong
2026-08-09 Windowed `AVG` mis-merges a wide bounded frame MonetDB open Yibo-Dong
2026-08-09 Window `GROUP_CONCAT` mishandles a NULL separator MonetDB fixed Yibo-Dong
2026-08-09 ASC temporal `RANGE` frames mishandle NULL order keys MonetDB open Yibo-Dong
2026-08-09 `partial_aggregate_pushdown` returns wrong holistic aggregate results over joins DuckDB fixed Yibo-Dong
2026-08-09 `last(DISTINCT x)` can return the non-distinct last value DuckDB fixed Yibo-Dong
2026-08-09 `aggregate_function_rewriter` leaves a stale `GROUPING()` binding for ordered `list()` DuckDB open Yibo-Dong
2026-08-09 Unexpected result of `UNION ALL` over filtered LEFT JOIN branches DuckDB fixed suyZhong
2026-08-09 Unexpected result of `IS NULL` filter on a RIGHT JOIN DuckDB open suyZhong
2026-08-09 RANGE PRECEDING over an INTERVAL order key can exclude the lower endpoint DuckDB fixed Yibo-Dong
2026-08-09 PERCENT_RANK with argument ORDER BY can split peers when the argument order is a prefix of the wi... DuckDB fixed Yibo-Dong
2026-08-09 LEAD/LAG ignores EXCLUDE GROUP DuckDB fixed Yibo-Dong
2026-08-09 INTERNAL Error: regexp_full_match() on a non-constant pattern is not marked fallible DuckDB fixed suyZhong
2026-08-09 Dynamic ROWS NULL PRECEDING bound can reuse a previous frame start DuckDB fixed Yibo-Dong
2026-08-09 Duplicate PARTITION BY expressions can make different window partitions share results DuckDB fixed Yibo-Dong
2026-08-09 `WHERE
Dolt fixed wanteatfruit
2026-08-08 `INTERNAL Error: Operator occurrence N was reconstructed more than once` on `INNER JOIN` with a s... DuckDB fixed wanteatfruit
2026-08-08 `TRIM` panics on a native `TIME` value Dolt fixed Yibo-Dong
2026-08-08 `MIN` panics on a legal empty leading `ROWS` frame Dolt open Yibo-Dong
2026-08-08 `LAST_INSERT_ID(NULL)` panics on a nil result Dolt fixed Yibo-Dong
2026-08-08 `DEFAULT(column)` reaches an unresolved placeholder during SELECT analysis Dolt fixed Yibo-Dong
2026-08-08 `CHAR` PAD SPACE values split a window partition Dolt open Yibo-Dong
2026-08-08 `BIN_TO_UUID` panics for a NULL swap flag Dolt fixed Yibo-Dong
2026-08-08 Window `AVG` drops a non-NULL nonnumeric `VARCHAR` Dolt open Yibo-Dong
2026-08-08 Temporal `RANGE INTERVAL` endpoints use incompatible types Dolt open Yibo-Dong
2026-08-08 Legal `BIT(2)` RANGE following frame panics Dolt fixed Yibo-Dong
2026-08-08 Final window `ORDER BY` on a set operation panics Dolt fixed Yibo-Dong
2026-08-08 Empty value-window frame is incorrectly non-nullable in CTAS Dolt fixed Yibo-Dong
2026-08-08 Dolt sibling NTILE expressions reuse the first bucket count Dolt fixed Yibo-Dong
2026-08-08 Dolt reverses the direction of a numeric `DESC RANGE` offset frame Dolt open Yibo-Dong
2026-08-08 Dolt panics with `Interval.Eval`within standalone `INTERVAL` expression Dolt fixed Yibo-Dong
2026-08-08 Dolt panics when `FIRST_VALUE` receives the star placeholder Dolt fixed Yibo-Dong
2026-08-08 Dolt panics on an unchecked AST cast within prepared `CREATE PROCEDURE` Dolt fixed Yibo-Dong
2026-08-08 Dolt panics on a non-numeric NTILE bucket expression Dolt fixed Yibo-Dong
2026-08-08 Dolt loses an explicit full frame when a named window inherits a base window Dolt open Yibo-Dong
2026-08-08 Dolt forms incorrect `RANGE` boundaries for a correlated computed order key Dolt open Yibo-Dong
2026-08-08 Distinct window partition/order shapes collide in `PartitionId` Dolt open Yibo-Dong
2026-08-06 `WHERE` treats an UNKNOWN boolean expression as true MonetDB fixed Yibo-Dong
2026-08-06 `RIGHT` returns the empty string for a one-character UTF-8 input MonetDB open Yibo-Dong
2026-08-06 `QUALIFY` with inline `ROW_NUMBER` leaks an `ORDER BY` column and filters the wrong rows MonetDB open Yibo-Dong
2026-08-06 `if(, , )` in a WHERE over a view raises internal error Dolt open wanteatfruit
2026-08-06 `COUNT(*) OVER ()` returns 1 instead of the partition size Dolt fixed wanteatfruit
2026-08-06 ` SPACE(n)` results in a hang when `n` is large Dolt open wanteatfruit
2026-08-06 Dolt window `SUM` returns `0` for an all-NULL frame. Dolt fixed Yibo-Dong
2026-08-06 Dolt returns a negative value for `ABS(-9223372036854775808)`. Dolt fixed Yibo-Dong
2026-08-06 Dolt reports an internal row-index bug for invalid `NTILE(column)`. Dolt open Yibo-Dong
2026-08-06 Dolt rejects unary negation of a `ROW_NUMBER()` window result. Dolt fixed Yibo-Dong
2026-08-06 Dolt rejects a repeated window expression in `ORDER BY` as ambiguous. Dolt open Yibo-Dong
2026-08-06 Dolt raises an internal row-index error for `EXISTS` with a window expression. Dolt open Yibo-Dong
2026-08-06 Dolt panics when preparing/executing `CREATE EVENT`. Dolt fixed Yibo-Dong
2026-08-06 Dolt panics when a named window inherits from an undefined window. Dolt fixed Yibo-Dong
2026-08-06 Dolt panics for `FIRST_VALUE` with an empty `OVER ()` spec. Dolt fixed Yibo-Dong
2026-08-06 Dolt misorders a window when `ORDER BY` contains a correlated scalar subquery. Dolt open Yibo-Dong
2026-08-06 Dolt ignores secondary `ORDER BY` keys for `RANGE CURRENT ROW` peer groups. Dolt open Yibo-Dong
2026-08-06 Dolt ignores `LIMIT` inside a correlated `EXISTS` subquery. Dolt fixed Yibo-Dong
2026-08-06 Dolt converts valid date strings with leading or trailing whitespace to `NULL` Dolt fixed Yibo-Dong
2026-08-06 Dolt arithmetic on `BIGINT UNSIGNED` values wraps into signed negative values. Dolt open Yibo-Dong
2026-08-06 Dolt aggregate numeric coercion over `TIME` returns zero. Dolt fixed Yibo-Dong
2026-08-06 Dolt `TIME_FORMAT` mishandles hour format specifiers for `TIME` values. Dolt fixed Yibo-Dong
2026-08-06 Dolt `ONLY_FULL_GROUP_BY` recognizes functional dependency through a primary key but not through ... Dolt fixed Yibo-Dong
2026-08-06 Dolt `JSON_EXTRACT` does not preserve large JSON integer values. Dolt open Yibo-Dong
2026-08-06 Dolt `GROUP_CONCAT(expr1, expr2, ...)` ignores later expressions. Dolt fixed Yibo-Dong
2026-08-06 Dolt `GROUP_CONCAT(BIT)` concatenates numeric text instead of BIT bytes. Dolt open Yibo-Dong
2026-08-05 `predicate_push_down` returns a nil plan TiDB open wanteatfruit
2026-08-05 `ANY_VALUE()` in a view raises planner error 1105 `Can't find column Column#N in schema` TiDB open wanteatfruit
2026-08-05 An aggregate window function inside a view breaks correlated quantified subqueries (`< ANY` / `= ... TiDB open wanteatfruit
2026-08-05 `RANGE CURRENT ROW` ignores peer rows MonetDB open Yibo-Dong
2026-08-05 `NOT` over a false self-comparison returns `false` MonetDB fixed Yibo-Dong
2026-08-05 Dynamic `LAG` offset is ignored and behaves like offset 0 MonetDB open Yibo-Dong
2026-08-05 Dolt supports `BIT_AND`, `BIT_OR`, and `BIT_XOR` as ordinary aggregates, but the same functions f... Dolt fixed Yibo-Dong
2026-08-05 Dolt silently ignores `DISTINCT` for `COUNT` and `SUM` window aggregates. Dolt open Yibo-Dong
2026-08-05 Dolt sibling window aggregates with different explicit frames reuse the wrong frame. Dolt fixed Yibo-Dong
2026-08-05 Dolt raises an internal row-index error for empty`INSERT ()` Dolt open Yibo-Dong
2026-08-05 Dolt raises an internal field-index error for sibling `SUM`/`AVG` windows Dolt open Yibo-Dong
2026-08-05 Dolt panics when evaluating `LOCATE` with a negative start position. Dolt fixed Yibo-Dong
2026-08-05 Dolt panics when `JSON_TABLE` is evaluated over JSON `null`. Dolt fixed Yibo-Dong
2026-08-05 Dolt panics when `DEFAULT` is used in an `ON DUPLICATE KEY UPDATE` assignment. Dolt fixed Yibo-Dong
2026-08-05 Dolt panics for a `RANGE BETWEEN CURRENT ROW AND 1 FOLLOWING` window over a `SET` order key. Dolt fixed Yibo-Dong
2026-08-05 Dolt computes population statistical aggregates incorrectly for `INT` input. Dolt open Yibo-Dong
2026-08-05 Dolt `RANGE BETWEEN 1 PRECEDING AND CURRENT ROW` over `BIGINT UNSIGNED` loses the current row at ... Dolt open Yibo-Dong
2026-08-05 Dolt `LAST_VALUE` with an explicit `RANGE` peer frame mishandles a `NULL` order key. Dolt open Yibo-Dong
2026-08-04 seekdb: Result size mismatch for GROUP BY ... WITH ROLLUP + HAVING partitioned TLP (RIGHT JOIN nu... SeekDB open footka
2026-08-04 Segmentation fault on `RIGHT_SEMI` hash join over a window-aggregate view DuckDB fixed wanteatfruit
2026-08-04 `string_agg` over a single-row moving frame raises an internal error CrateDB fixed Yibo-Dong
2026-08-04 `UNION ALL` branch reading a relation with an extra column shifts column position CrateDB fixed wanteatfruit
2026-08-04 `FULL OUTER JOIN` returns wrong answer due to `optimizer_rewrite_filter_on_outer_join_to_inner_join` CrateDB fixed wanteatfruit
2026-08-04 `DESC RANGE` window frames can produce negative counts CrateDB fixed Yibo-Dong
2026-08-04 Window aggregate `FILTER` crashes when the filter predicate is `NULL` CrateDB fixed Yibo-Dong
2026-08-04 Window `sum` returns `0` for a frame containing only `NULL` CrateDB fixed Yibo-Dong
2026-08-04 Merge filter and move filter on a `PARTITIONED` table drop rows CrateDB fixed wanteatfruit
2026-08-04 LAG ignores a row-dependent offset expression CrateDB fixed Yibo-Dong
2026-08-03 Top-N MIN with row-dependent n fails in a singleton window frame DuckDB open Yibo-Dong
2026-08-03 Row-dependent `APPROX_TOP_K` capacity is rejected by the combine window path DuckDB fixed Yibo-Dong
2026-08-03 MODE(DISTINCT ...) can ignore the window ORDER BY input order DuckDB fixed Yibo-Dong
2026-08-03 MAD FILTER over an excluded ROWS frame can include filtered/excluded rows DuckDB fixed Yibo-Dong
2026-08-03 HISTOGRAM_EXACT with row-dependent bins fails in a singleton window frame DuckDB fixed Yibo-Dong
2026-08-03 HISTOGRAM window combine double-counts NaN map keys DuckDB fixed Yibo-Dong
2026-08-03 FIRST_VALUE without window ORDER BY ignores a singleton ROWS frame DuckDB fixed Yibo-Dong
2026-08-03 `RPAD()/LPAD()` has unexpected behvior Dolt open wanteatfruit
2026-08-03 Aggregate window function with `OVER (ORDER BY
Dolt fixed wanteatfruit
2026-08-03 `RANK()` / `DENSE_RANK()` with explicit frame returns wrong answer CrateDB fixed wanteatfruit
2026-08-03 UNION ALL + ORDER BY on an unselected column fails on `XX000` CrateDB fixed wanteatfruit
2026-08-01 sql: Internal error "expected inverted index scan to have a constraint" for TIMETZ[] inverted ind... CockroachDB fixed Annie191
2026-08-01 Unexpected results with a minmax index and a NULL-containing `SOME` comparison ClickHouse open suyZhong
2026-07-31 Correlated subquery over a column-split-rejoin view raises internal "unable to find field with in... Dolt fixed wanteatfruit
2026-07-31 `WHERE ` silently dropped when the column is projected with an alias through... CrateDB fixed wanteatfruit
2026-07-30 `UNION ALL` relation + `IN (correlated subquery)` over an `ALL` subquery panics TiDB open wanteatfruit
2026-07-30 `RANK()` / `DENSE_RANK()` with an explicit `ROWS` frame silently degenerate into `ROW_NUMBER()` ClickHouse open wanteatfruit
2026-07-29 INTERNAL Error: Vector::Reference used on vector of different type (BIGINT/VARCHAR) -- COALESCE o... DuckDB fixed wanteatfruit
2026-07-29 INTERNAL Error: Failed to bind column reference -- quantified ALL/ANY subquery in a non-inner joi... DuckDB fixed wanteatfruit
2026-07-27 Crashes when `DISTINCT` over a `VARIANT` at greater than 7 rows. DuckDB fixed wanteatfruit
2026-07-20 Unexpected result when `NOT` applied to a LIST `<` comparison DuckDB open suyZhong
2026-07-19 Unexpected result when comparing `STRUCT` values in a `JOIN` DuckDB open suyZhong
2026-07-18 INTERNAL Error: Attempted to access index 0 within vector of size 0 DuckDB open suyZhong
2026-07-17 [DDL Atomicity] Master FATAL / crash-loop in ysql_ddl_verification_task PgSchemaChecker — table-r... YugabyteDB open yugabyte-ci
2026-07-11 [metamorph] shard=demo: 20 TLP/NoREC oracle failure(s) (first seed=0) sparq fixed jeswr
2026-07-08 top_n_window_elimination ignores ROW_NUMBER argument ORDER BY DuckDB fixed Yibo-Dong
2026-07-08 top_n_window_elimination can rank NaN before finite values DuckDB fixed Yibo-Dong
2026-07-08 top_n_window_elimination can produce a NULL row for ROW_NUMBER on empty input DuckDB fixed Yibo-Dong
2026-07-08 top_n_window_elimination can drop rows when ROW_NUMBER orders by a nullable expression DuckDB fixed Yibo-Dong
2026-07-07 RANGE offset 0 frames can split duplicate ORDER BY peers DuckDB fixed Yibo-Dong
2026-07-07 BITSTRING_AGG without explicit min/max fails as a window aggregate DuckDB fixed Yibo-Dong
2026-07-06 filter_pushdown can turn a correlated aggregate comparison below a window into NULL rows DuckDB open Yibo-Dong
2026-07-06 Value functions reject argument ORDER BY with EXCLUDE DuckDB fixed Yibo-Dong
2026-07-06 CUME_DIST with argument ORDER BY can underflow on future ROWS frames DuckDB fixed Yibo-Dong
2026-07-03 top_n_window_elimination can collapse duplicate payload rows DuckDB fixed Yibo-Dong
2026-07-03 ROW_NUMBER over read_duckdb can return 0-based file-local row numbers DuckDB fixed Yibo-Dong
2026-07-03 Internal error in common_subplan for UNION of QUALIFY ROW_NUMBER EXCEPT branches DuckDB fixed Yibo-Dong
2026-07-03 COUNT(*) over a reversed ROWS frame can return a negative count DuckDB fixed Yibo-Dong
2026-07-02 Trial: SQLancer-style logic-bug gauntlet for Datalog (TLP/NoREC) Kyzo fixed kylejtobin
2026-07-02 Incorrect indexes in left outer lookup join Dolt fixed Zhaokun Xiang
2026-07-02 sql/flowinfra: row stream can emit unset EncDatum row after INTERVAL encode overflow CockroachDB open srosenberg
2026-07-01 Avoid RangeHeapJoin when lower and upper bounds are the same field Dolt fixed Zhaokun Xiang
2026-06-25 Wrong results for LIST(DISTINCT ... ORDER BY ...) window aggregate DuckDB fixed Yibo-Dong
2026-06-25 Wrong result: FIRST_VALUE crosses partition DuckDB fixed Yibo-Dong
2026-06-25 Wrong result: FILL ignores ROWS frame DuckDB fixed Yibo-Dong
2026-06-24 Wrong results for DISTINCT window aggregates DuckDB fixed Yibo-Dong
2026-06-24 Inherited named window fails to resolve earlier base window DuckDB fixed Yibo-Dong
2026-06-18 [Bug] Incorrect row generation with grouped aggregation after an empty Cartesian product match FalkorDB fixed trrrrr617
2026-06-17 TiDB nightly panic in mockstore/unistore badger Table.HasOverlap during transaction rollback cleanup TiDB open Annie191
2026-06-15 LOGICAL_ERROR "Not-ready Set ... for function 'in'": IN-subquery inside an expression on a PARTIT... ClickHouse fixed fm4v
2026-06-12 Wrong results: ORDER BY col DESC LIMIT 1 returns 0 rows — TopK granule skip-index (use_skip_index... ClickHouse fixed fm4v
2026-06-10 `DISTINCT` over `GROUP BY ... WITH CUBE/ROLLUP/GROUPING SETS` returns duplicates (`query_plan_rem... ClickHouse fixed qoega
2026-06-10 Join reordering returns a different result for a LEFT ANTI / RIGHT SEMI / INNER join chain ClickHouse closed not a bug fm4v
2026-06-10 Block structure mismatch in `UnionStep` stream when `UNION ALL` branches differ only in `WHERE` a... ClickHouse fixed qoega
2026-06-09 json_transform generate incorrect results on NUL symbol DuckDB fixed DerZc
2026-06-09 dateformat does not work for the top layer date value DuckDB fixed DerZc
2026-06-09 VARIANT changes the json_type of value DuckDB fixed DerZc
2026-06-09 The fullkey field incorrectly escapes keys containing special characters DuckDB fixed DerZc
2026-06-09 Inconsistency between type cast to fixed array and unfixed array DuckDB fixed DerZc
2026-06-08 json_object and json_group_object silently drop the NULL-key entry DuckDB fixed DerZc
2026-06-08 ignore_errors makes read_ndjson_objects accept invalid json object DuckDB fixed DerZc
2026-06-08 Unexpected result of json_deserialize_sql DuckDB fixed DerZc
2026-06-08 Unexpected error triggered by array_to_json DuckDB fixed DerZc
2026-06-08 Unexpected error `Unrecognized option "ROW_GROUP_SIZE" for csv` and for json DuckDB fixed DerZc
2026-06-08 Unexpected error `No function matches the given name and argument types 'json_type(JSON, INTEGER_... DuckDB open DerZc
2026-06-08 Unexpected error `Invalid Input Error` for COPY FROM DuckDB open DerZc
2026-06-08 JSON keys are case-sensitive at the top level but case-insensitive at nested levels in read_json DuckDB open DerZc
2026-06-08 INTERNAL Error: Unsupported type arrived at JSON create function DuckDB fixed DerZc
2026-06-08 Data type lost in PARQUET file DuckDB fixed DerZc
2026-06-08 COPY FROM has different behaviors with different option order DuckDB fixed DerZc
2026-06-05 Wrong results: GROUP BY on the partition key with a WHERE filter is served from _minmax_count_pro... ClickHouse fixed fm4v
2026-06-05 TLP partitioning over a mixed `RIGHT JOIN` + comma join tree can produce rows from an empty resul... ClickHouse fixed 123lpygithub
2026-06-04 Wrong result: WHERE toStartOfYear(Date32) < const returns 0 rows after merge when column has pre-... ClickHouse fixed fm4v
2026-06-04 LOGICAL_ERROR "Join restriction violated" in JoinOrderOptimizer on comma-join + LEFT JOIN with IS... ClickHouse fixed fm4v
2026-06-02 `ColumnId`'s not added for `EmptyTable` during `assignExecIndexes`, causing offset when getting c... Dolt fixed Zhaokun Xiang
2026-06-02 Disable RangeHeapJoin with string and number columns Dolt fixed Zhaokun Xiang
2026-06-01 `abs` returns `null` when inputs are boolean values Dolt fixed Zhaokun Xiang
2026-06-01 `NATURAL FULL JOIN` incorrectly parsed as `NATURAL RIGHT JOIN` Dolt fixed Zhaokun Xiang
2026-06-01 Wrong results: equality predicate (col = const) drops rows when ORDER BY key is a NaN-producing f... ClickHouse fixed fm4v
2026-05-29 Wrong results: partition pruning with intDiv/divide by a negative constant drops rows for range p... ClickHouse fixed fm4v
2026-05-29 Wrong results: SummingMergeTree FINAL drops a present row when reading only a summation column th... ClickHouse open fm4v
2026-05-29 Row policy with a bare-column USING expression: LOGICAL_ERROR "Duplicate column name ... in row p... ClickHouse fixed fm4v
2026-05-28 Logic Error: TLP query rewrite with tautological predicates and redundant `OR`-`AND` expansion ca... Virtuoso fixed Jasper0209
2026-05-28 Logic Error: TLP query rewrite with `OR` and `NULL` semantics undercounts rows in Virtuoso Virtuoso fixed Jasper0209
2026-05-28 Logic Error: TLP query rewrite with `NULL` filter produces incorrect count due to expression inje... Virtuoso fixed Jasper0209
2026-05-28 Logic Error: TLP query rewrite over `LEFT JOIN` with `NULL` columns causes double-counting in Vir... Virtuoso fixed Jasper0209
2026-05-28 Logic Error: TLP query rewrite over `EXISTS` subquery produces incorrect result due to predicate ... Virtuoso fixed Jasper0209
2026-05-28 Logic Error: Incorrect `COUNT(*)` results in TLP query rewrite involving `NULL` predicate and `CA... Virtuoso fixed Jasper0209
2026-05-28 INTERNAL Error: Attempted to dereference unique_ptr that is NULL! DuckDB fixed DerZc
2026-05-26 bug #19491: segmentation fault triggered by is null BharatDBMS fixed BharatDBPG
2026-05-23 DECIMAL column values incorrectly returned as 0 in large JOIN result sets when connecting via pym... MonetDB open fyr03
2026-05-22 INTERNAL Error: Unsupported type arrived at JSON create function DuckDB fixed DerZc
2026-05-22 INTERNAL Error: Calling StringValue::Get on a NULL value DuckDB fixed DerZc
2026-05-22 INTERNAL Error: Attempting to dereference an optional pointer that is not set DuckDB fixed DerZc
2026-05-22 INTERNAL Error: Attempted to access index 0 within vector of size 0 DuckDB fixed DerZc
2026-05-20 Incorrect result of json_serialize_sql DuckDB fixed DerZc
2026-05-20 INTERNAL Error: 'back' called on an empty vector! DuckDB fixed DerZc
2026-05-19 Unexpected Parser Error: Expected but did not find property 'cte_map' in json object: DuckDB fixed DerZc
2026-05-19 Optimizer triggers parser error on JSON DuckDB fixed DerZc
2026-05-19 Internal error: Expected vector of type VARCHAR, but found vector of type LIST triggered by json_... DuckDB fixed DerZc
2026-05-19 Internal Error: Unsupported type arrived at JSON create function DuckDB fixed DerZc
2026-05-19 INTERNAL Error: Attempted to dereference unique_ptr that is NULL! DuckDB fixed DerZc
2026-05-19 `__bitWrapperFunc` internal assertion ("It's a bug!") on Float WHERE predicate against a `TYPE se... ClickHouse fixed fm4v
2026-05-15 `WHERE x OR x` silently drops rows whose low byte is 0 on non-UInt8 columns ClickHouse fixed fm4v
2026-05-08 `WHERE p AND ` returns zero rows on `MergeTree` ClickHouse fixed qoega
2026-05-07 [YSQL] Core dumps noticed causing multiple connection manager and sqlancer tests to fail YugabyteDB open rojasbinny-yb
2026-05-06 `QueryConditionCache` is poisoned by AST fuzzer queries — subsequent normal `WHERE` queries retur... ClickHouse fixed qoega
2026-05-01 Unexpected ANTI JOIN Result CrateDB fixed Zhaokun Xiang
2026-04-26 bug: SUM(constant) over cross join inside UNION ALL panics with Decimal precision mismatch (regre... Databend fixed mrigger
2026-04-26 DROP DATABASE returns EAGAIN ("Tskv: Index: index storage error: Resource temporarily unavailable... CnosDB open mrigger
2026-04-17 bug: SELECT AVG(constant) over cross join panics with Decimal precision mismatch Databend fixed mrigger
2026-04-17 WHERE x AND toNullable(N) returns 0 rows for any N >= 256 ClickHouse fixed qoega
2026-04-16 Fix memory allocation failure (errcode=-4013) during vector benchmark with async index SeekDB fixed cms-cms
2026-04-13 Logical inconsistency: The SQL we geenenrated in the form of TLP is inconsistent with the result ... DuckDB fixed Jasper0209
2026-04-12 roachtest: tlp failed CockroachDB fixed cockroach-teamcity
2026-04-01 NoREC logical bug: unoptimized evaluation of REGEXP_SUBSTR in the WHERE clause produces inconsist... MariaDB open Jasper Andrew
2026-04-01 NoREC logical bug: unoptimized evaluation of REGEXP_REPLACE in the WHERE clause produces inconsis... MariaDB closed duplicate Jasper Andrew
2026-03-30 `(2147483648 > b) AND 2147483648` is not the same result as `(2147483648 > b)` ClickHouse fixed qoega
2026-03-20 Incorrect use of collation sequences on non-PK columns of a WITHOUT ROWID table for row value com... SQLite fixed Axel Teo
2026-03-18 MIN/MAX produces non-deterministic results when input contains NaN ClickHouse fixed zlareb1
2026-03-18 LEFT ANTI JOIN right-table columns contain left key values instead of default values ClickHouse fixed zlareb1
2026-03-17 TiKV panic in impl_like::like with invalid regexp pattern (slice out of bounds) TiDB fixed LLMTesting-Ojiken
2026-03-17 Floating point exception (core dumped) DuckDB fixed DerZc
2026-03-05 Incorrect skip-ahead optimization after modification to internal statistics table SQLite fixed Axel Teo
2026-03-05 Unexpected Fault error CockroachDB fixed DerZc
2026-03-04 Index makes the normal SELECT query slow down CockroachDB fixed DerZc
2026-03-01 Redundant sort in the query plan of normal SELECT, causes it slower than the prepared SELECT TiDB open DerZc
2026-03-01 Redundant Selection and Projection in the query plan of normal SELECT, causes it slower than the ... TiDB open DerZc
2026-03-01 Redundant HashAgg in the query plan of normal SELECT, causes it slower than the prepared SELECT TiDB fixed DerZc
2026-03-01 Inefficient query plan generated by the normal SELECT than the prepared SELECT with false HAVING ... TiDB fixed DerZc
2026-03-01 Inefficient query plan generated by the normal SELECT than the prepared SELECT when use subquery ... TiDB open DerZc
2026-03-01 Inefficient query plan generated by normal SELECT compare to the prepared SELECT with false condi... TiDB open DerZc
2026-03-01 Index with StreamAgg used in the prepared SELECT but not in the normal SELECT TiDB fixed DerZc
2026-02-28 planner: missing-column 1105 with RIGHT JOIN + ORDER BY subtraction expression TiDB fixed hawkingrei
2026-02-17 The simple prepared query run out of 1 GiB memory with only 70 rows TiDB open DerZc
2026-02-17 bug #19350: short circuit optimization missed when running sql scriptes in jdbc BharatDBMS open BharatDBPG
2026-02-14 planner/executor: internal missing-column error with JOIN ... USING + qualified column predicate TiDB fixed hawkingrei
2026-02-13 runtime error: index out of range on ANY subquery predicate TiDB fixed hawkingrei
2026-02-09 runtime error: nil pointer dereference with RIGHT JOINs and views (TLP) TiDB fixed hawkingrei
2026-02-09 AssertionError: index 1 out of bounds for list size 1 QuestDB fixed YuanchengJiang
2026-02-09 AssertionError at FilteredRecordCursorFactory.java QuestDB fixed YuanchengJiang
2026-02-09 sqlancer test fail with COLLATE used in string concatenation Citus fixed alperkocatas
2026-02-09 TLP test fail on sqlancer due to num_nulls interpreted differently on workers Citus fixed alperkocatas
2026-02-05 redundant join operation in the query plan of a normal SELECT CockroachDB open DerZc
2026-02-05 Inefficient query plan of a normal SELECT with merge join CockroachDB open DerZc
2026-02-04 redundant filter and render in the query plan of a normal SELECT with empty table CockroachDB fixed DerZc
2026-02-04 Less efficient query plan generated by normal SELECT than the equivalent prepared SELECT related ... CockroachDB closed not a bug DerZc
2026-02-03 Unexpected error `LIMIT/OFFSET cannot be negative` in the subquery of prepared statement DuckDB fixed DerZc
2026-02-03 Inconsistent results between equivalent normal and prepared SELECT DuckDB fixed DerZc
2026-02-03 Less efficient query plan generated by normal SELECT than the equivalent prepared SELECT CockroachDB fixed DerZc
2026-02-02 Inconsistent behaviour between normal and prepared SELECT when use subquery in ON condition TiDB open DerZc
2026-02-01 `WHERE NOT EXISTS` from an empty view does not return correct results Dolt fixed Zhaokun Xiang
2026-01-28 Index out of bound when calling DEALLOCATE statement in JDBC TiDB open DerZc
2026-01-28 inefficient query plan generated by normal SELECT DuckDB open DerZc
2026-01-28 Less efficient query plan generated by normal SELECT than the equivalent prepared SELECT DuckDB open DerZc
2026-01-27 nil pointer dereference triggered by INSERT TiDB open DerZc
2026-01-27 index out of bound only triggered when query run twice TiDB open DerZc
2026-01-27 Inconsistent result between normal SELECT and prepared SELECT, related to GROUP BY TiDB open DerZc
2026-01-27 Unexpected error in the HAVING clause of subquery DuckDB fixed DerZc
2026-01-26 cast an invalid string to DATETIME returns NULL in normal SELECT, but triggers an error in prepar... TiDB open DerZc
2026-01-26 Incorrect result of ELT function when used in WHERE clause of prepared statement TiDB open DerZc
2026-01-26 Wrong collation used as part of a row-value comparison between columns with different collation s... SQLite fixed Axel Teo
2026-01-22 [YSQL][SQLancer] SIGSEGV in YBCTriggerRelcacheInitConnection due to NULL dbname YugabyteDB open qvad
2026-01-22 Inconsistent results of DATA_FORMAT when used in normal SELECT and prepared SELECT TiDB open DerZc
2026-01-22 Deterministic query returns indeterministic results TiDB fixed DerZc
2026-01-22 BIT_AND returns incorrect result in prepared statement TiDB open DerZc
2026-01-19 ERROR: internal error: could not find format code for column 1 in [FormatText] CockroachDB fixed DerZc
2026-01-16 Incorrect comparison optimization on collation sequences SQLite fixed Axel Teo
2026-01-14 SQLancer run failures - 2026-01-14 (789b96e) Turso fixed turso-github-handyman[bot]
2026-01-13 SQLancer NoREC: timeout after 300s Turso fixed turso-github-handyman[bot]
2026-01-12 Set up SQLRight fuzzing Turso fixed LeMikaelF
2026-01-12 Reference to undefined or unresolved label in Goto: 18 Turso fixed LeMikaelF
2026-01-12 Panic: "attempt to negate with overflow" Turso fixed LeMikaelF
2026-01-12 ORDER BY with float literal causes parse error Turso fixed LeMikaelF
2026-01-12 Logic bug found by SQLancer Turso fixed LeMikaelF
2026-01-11 Panic: yield_reg 1 contains non-integer value: Value(Null) Turso fixed LeMikaelF
2026-01-11 Panic in b-tree balancing Turso fixed LeMikaelF
2026-01-10 Turso hangs on "select 1 as a group by a order by a;" Turso fixed LeMikaelF
2026-01-09 Panic when comparing NaN Turso fixed LeMikaelF
2026-01-09 BYTEA to text to BYTEA generate inconsystent value from the original one CockroachDB fixed DerZc
2026-01-07 expression should have been rewritten in optimizer Turso fixed LeMikaelF
2026-01-07 Panic: entered unreachable code in jsonb.rs Turso fixed LeMikaelF
2026-01-07 Panic: cursor id 0 is None Turso fixed LeMikaelF
2026-01-07 Panic: "column name is None" when NATURAL JOIN has unnamed columns Turso fixed LeMikaelF
2026-01-07 Panic: "Should be valid f64: ParseFloatError { kind: Invalid }" Turso fixed LeMikaelF
2026-01-07 Corrupt database: Reference to undefined or unresolved label in Found: 8 Turso fixed LeMikaelF
2026-01-07 "Corrupt database: Unresolved label: Placeholder" when creating index with NOT IN Turso fixed LeMikaelF
2026-01-04 Unexpected Floating point exception DuckDB fixed DerZc
2026-01-04 Inconsistent behaviour of normal and prepared statement when use values with different types in C... DuckDB fixed DerZc
2026-01-03 Unexpected error "Cannot convert string '\x15t\x03\x10\x93' from binary to utf8mb4" TiDB open DerZc
2026-01-03 Undeterministic result of deterministic query TiDB open DerZc

Every figure on this page is computed from _data/impact/. The attribution policy explains what has to be true for a bug to be counted.