Issues

• Fix for RENAME COLUMN of an unsealed POSTING index has no working regression test

  Bugstorage
  questdb/questdb#7978 · Filter by author bluestreak01 opened on Oct 17, 2026

• ATTACH PARTITION of a directory copied from another table can lose column data or index rows

  Bugstorage
  questdb/questdb#7977 · Filter by author bluestreak01 opened on Oct 17, 2026

• Index queries fail after ATTACH PARTITION when the index was added while the partition was detached

  Bugstorage
  questdb/questdb#7976 · Filter by author bluestreak01 opened on Oct 17, 2026

• Old symbol table files of TIMESTAMP_NS tables stay on disk when a pending purge is replayed at startup

  Bugstorage
  questdb/questdb#7975 · Filter by author bluestreak01 opened on Oct 17, 2026

• RENAME TABLE of a non-WAL table drops its pending column purges, leaving old column files on disk

  Bugstorage
  questdb/questdb#7974 · Filter by author bluestreak01 opened on Oct 17, 2026

• Column purge job stops saving purges after one purge-log I/O error, so a restart loses them

  Bugstorage
  questdb/questdb#7973 · Filter by author bluestreak01 opened on Oct 17, 2026

• Column purges that fail during the startup replay are dropped, leaving old column files on disk

  Bugstorage
  questdb/questdb#7972 · Filter by author bluestreak01 opened on Oct 17, 2026

• With parquet statistics disabled, BOOLEAN/BYTE/SHORT rows before ADD COLUMN read 0 instead of NULL after ALTER COLUMN TYPE

  Bugstorage
  questdb/questdb#7971 · Filter by author bluestreak01 opened on Oct 17, 2026

• Rows written before ADD COLUMN read NULL or false/0 after ALTER COLUMN TYPE to BOOLEAN and back, depending on storage history

  BugCore
  questdb/questdb#7970 · Filter by author bluestreak01 opened on Oct 17, 2026

• Failed ADD INDEX deletes the column data of a non-partitioned table and leaves index files behind

  Bugstorage
  questdb/questdb#7969 · Filter by author bluestreak01 opened on Oct 17, 2026

• ALTER COLUMN TYPE of an indexed SYMBOL leaves its index files on disk, and VACUUM TABLE does not remove them

  Bugstorage
  questdb/questdb#7968 · Filter by author bluestreak01 opened on Oct 17, 2026

• DROP, ATTACH or DETACH PARTITION leaves old column and index files of pending purges on disk

  Bugstorage
  questdb/questdb#7967 · Filter by author bluestreak01 opened on Oct 17, 2026

• Covering index queries return NULL for a covered column after RENAME COLUMN, DROP INDEX or UPDATE of it

  Bugstorage
  questdb/questdb#7966 · Filter by author bluestreak01 opened on Oct 17, 2026

• Covering index queries return NULL instead of failing when an index sidecar file is missing

  Bugstorage
  questdb/questdb#7965 · Filter by author bluestreak01 opened on Oct 17, 2026

• LATEST ON PARTITION BY an indexed SYMBOL misses the NULL key from partitions written before ADD COLUMN

  BugSQL
  questdb/questdb#7964 · Filter by author bluestreak01 opened on Oct 17, 2026

• Failed CONVERT PARTITION commit can corrupt the partition or remove the directory _txn points to

  Bugstorage
  questdb/questdb#7963 · Filter by author bluestreak01 opened on Oct 17, 2026

• BOOLEAN columns in parquet partitions from 9.4.x read 0 instead of NULL after ALTER COLUMN TYPE

  Bugstorage
  questdb/questdb#7962 · Filter by author bluestreak01 opened on Oct 17, 2026

• Index scans return wrong rows on parquet partitions updated in place after ADD COLUMN

  Bugstorage
  questdb/questdb#7961 · Filter by author bluestreak01 opened on Oct 17, 2026
  1

• LATERAL sub-query fails with "Invalid column" when an outer join's ON reads an outer column that WHERE equates with a column of a table joined later

  BugSQL
  questdb/questdb#7960 · Filter by author bluestreak01 opened on Oct 17, 2026

• LATERAL sub-query fails with "Invalid column: __qdb_outer_ref__0_id" when WHERE equates two outer columns

  BugSQL
  questdb/questdb#7959 · Filter by author bluestreak01 opened on Oct 17, 2026

• LATERAL sub-query whose body is a UNION ALL attaches rows of other outer rows to the outer row with a NULL key when a branch RIGHT joins a correlated sub-query

  BugSQL
  questdb/questdb#7958 · Filter by author bluestreak01 opened on Oct 17, 2026

• LATERAL sub-query attaches rows of other outer rows to the outer row with a NULL key when a RIGHT join to a correlated sub-query has a set-operation master

  BugSQL
  questdb/questdb#7957 · Filter by author bluestreak01 opened on Oct 17, 2026

• WINDOW JOIN returns the same value for aggregates over different expressions of the same columns

  BugSQL
  Bug

  questdb/questdb#7956 · Filter by author RaphDal opened on Oct 16, 2026

• O3 merge into a split parent overwrites column data that open readers still read

  Bugstorage
  questdb/questdb#7955 · Filter by author jerrinot opened on Oct 16, 2026
  1

• test: assertQuery(...) chains inside assertMemoryLeak(...) nest a second leak check

  questdb/questdb#7954 · Filter by author bluestreak01 opened on Oct 16, 2026