tidb
Go Mediumpingcap/tidb
39,902 stars
6,164 forks
49 open issues
Active Mar 2026
Beginner-Friendly Issues 49
Issues tagged for new contributors
type/bug contribution
type/bug contribution
type/bug sig/planner severity/moderate AI-Testing fuzz/shiro
sql-infra: a user wth SUPER privilege can't execute SHOW CONFIG
#67385 · Mar 28, 2026
type/bug sig/sql-infra report/customer
TiDB returns non-zero count for a query with contradictory filtering conditions
#67375 · Mar 27, 2026
type/bug contribution
type/bug contribution
type/bug contribution
planner: output a warning if implicit join key type conversion happend
#67366 · Mar 27, 2026
type/enhancement sig/planner report/customer
planner: better binding matching mechanism
#67363 · Mar 27, 2026
type/enhancement sig/planner report/customer
FULLTEXT index: cannot create multiple indexes sharing a column
#67360 · Mar 27, 2026
type/bug severity/moderate component/ddl affects-9.0
MySQL 9.7 Compatibility
#67358 · Mar 27, 2026
type/feature-request
Flaky test: TestLateDataUnderConcurrentReporting in pkg/util/topsql/reporter
#67356 · Mar 27, 2026
type/enhancement component/test severity/critical flaky-test
Flaky test: TestSubsetIdxCardinality in pkg/planner/cardinality
#67355 · Mar 27, 2026
type/enhancement component/test severity/critical flaky-test
Flaky test: TestTiFlashMassiveReplicaAvailable in pkg/ddl/tests/tiflash
#67354 · Mar 27, 2026
type/enhancement component/test severity/critical flaky-test
Planner: Optimizer planning time for simple requests sent by agents
#67351 · Mar 27, 2026
type/enhancement
lightning: nil pointer dereference when importing data without matching partition
#67349 · Mar 27, 2026
type/bug component/lightning affects-7.5 affects-8.1
type/bug contribution
`CONCAT(...)` reports `Incorrect string value` for expression
#67347 · Mar 27, 2026
type/bug contribution sig/execution severity/major may-affects-6.5
Unexpected internal error for a query with VIEW and WHERE predicate
#67345 · Mar 27, 2026
type/bug contribution sig/planner severity/major may-affects-6.5
BR flaky `br_region_rule` checksum mismatch in `pull_br_integration_test`
#67339 · Mar 26, 2026
type/enhancement contribution
Planner: Avoid plan cache invalidation for SQL with binding
#67335 · Mar 26, 2026
type/enhancement
planner: nil pointer dereference when tidb_enforce_mpp keeps a missing TiFlash path
#67333 · Mar 26, 2026
type/bug sig/planner severity/moderate ai-bugfix
MySQL loses connection during a multi-table UPDATE IGNORE
#67332 · Mar 26, 2026
type/bug contribution severity/major may-affects-6.5 may-affects-7.1
Query with NULLIF and CAST in WHERE clause returns incorrect results
#67330 · Mar 26, 2026
type/bug contribution sig/execution severity/critical first-time-contributor
Non-transactional DML should not use the default scan concurrency
#67329 · Mar 26, 2026
type/enhancement good first issue
remove `GOTOOLCHAIN` config from release 8.5
#67326 · Mar 26, 2026
type/enhancement sig/execution component/executor affects-8.5
decrease tidb_opt_join_reorder_threshold from 63 to a smaller value
#67325 · Mar 26, 2026
type/enhancement
tests: add reusable failpoint-enabled go test script for local workflow
#67317 · Mar 26, 2026
type/enhancement component/test
tests/integrationtest: clean leaked session/global state between cases
#67314 · Mar 26, 2026
type/enhancement contribution
br inspector tool
#67311 · Mar 26, 2026
type/enhancement contribution
PiTR log restore produces insufficient pre-splits due to per-batch accumulation reset
#67309 · Mar 26, 2026
type/bug contribution severity/critical component/br may-affects-6.5
dxf/metrics: support Azure Blob metering storage URI
#67303 · Mar 25, 2026
type/enhancement
type/bug component/test severity/minor component/import component/lightning
type/bug sig/planner severity/major may-affects-6.5 may-affects-7.1
implement DP join reorder algorithm
#67283 · Mar 25, 2026
type/enhancement
column masking policy: add observability metrics for lifecycle and runtime enforcement
#67281 · Mar 25, 2026
column masking policy: define snapshot/stale-read semantics and strengthen test coverage
#67272 · Mar 25, 2026
type/enhancement
add the reason of kill in log
#67261 · Mar 24, 2026
type/enhancement sig/execution
CI: pkg/executor/importer:importer_test shard 29 of 38 frequently times out (flaky)
#67259 · Mar 24, 2026
severity/minor
CI: tidb_parser_test fails with 'toolchain not available' for go1.25.8 on linux/amd64
#67258 · Mar 24, 2026
type/bug contribution
type/bug contribution
Potential Bug in SQL with IFNULL Function When Column is NOT NULL
#67237 · Mar 23, 2026
sig/planner severity/critical affects-7.1 affects-7.5 affects-8.1
Bug in ATAN2 Function Behavior with IS NULL Condition When PRIMARY KEY is Present
#67236 · Mar 23, 2026
type/bug contribution severity/major affects-8.5
mysql-test index_merge1 can hit a deadlock on ANALYZE TABLE t3 after preceding DDLs
#67232 · Mar 23, 2026
type/bug sig/planner component/statistics component/test severity/moderate
show analyze status: Remaining_seconds can become negative in non-UTC sessions
#67230 · Mar 23, 2026
type/bug sig/planner component/statistics severity/moderate
type/bug component/expression severity/moderate
Masking policy: MASK_PARTIAL function implementation mismatch with design spec
#67225 · Mar 23, 2026