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case when and group by error

bug

Status: Open.

#27823 In prestodb/presto;

· sydt2014 opened on May 17, 2026

ORDER BY fails with 'Column is ambiguous' when SELECT has duplicate column names

feature request

Status: Open.

#27822 In prestodb/presto;

· mbasmanova opened on May 16, 2026

JDBC connector fails for DB2 views using SESSION_USER or DB2 native functions

feature request

Status: Open.

#27814 In prestodb/presto;

· KNagaVivek opened on May 15, 2026

hive table partition filter not pushdown partition scan

bug

Status: Open.

#27813 In prestodb/presto;

· sydt2014 opened on May 15, 2026

Clarify corr and regr_slope semantics for zero-variance inputs

usage

Status: Open.

#27808 In prestodb/presto;

· PingLiuPing opened on May 15, 2026

Add Iceberg V3 write-default support for ALTER COLUMN SET DEFAULT and INSERT operations

feature request

Status: Open.

#27781 In prestodb/presto;

· agrawalreetika opened on May 12, 2026

There is a strange issue when using CASE WHEN in GROUP BY.

bug

Status: Open.

#27761 In prestodb/presto;

· YuanGunGunO opened on May 9, 2026

[native-sidecar]: Native sidecar silently coerces decimal array concatenation to array(double)

bug

presto-native-tests

Status: Open.

#27749 In prestodb/presto;

· pramodsatya opened on May 7, 2026

(native): reduce_agg accepts a non-literal array initial state for grouped aggregation

bug

presto-native-tests

Status: Open.

#27710 In prestodb/presto;

· pramodsatya opened on May 4, 2026

(native): correlated scalar subquery with string projection misses multiple-row failure

bug

presto-native-tests

Status: Open.

#27709 In prestodb/presto;

· pramodsatya opened on May 4, 2026

Java test harness does not load native Velox functions (e.g. map_key_exists)

Status: Open.

#27679 In prestodb/presto;

· kaikalur opened on Apr 28, 2026

CI check of some PRs failing due to a Differential Revision line in the

bug

Status: Open.

#27654 In prestodb/presto;

· steveburnett opened on Apr 23, 2026