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Query<DateOnly> / Query<TimeOnly> (scalar form) silently return default(T)

Status: Open.

#2227 In DapperLib/Dapper;

· mgravell opened on Aug 20, 2026

DateOnly/DateTime coercion gaps on 'date' columns (breaks with Npgsql 10, and SqlClient the other way)

Status: Open.

#2226 In DapperLib/Dapper;

· mgravell opened on Aug 20, 2026

cmd.Cancel() in QueryRowImpl finally block causes ORA-1013 on Oracle Database Queries

Status: Open.

#2215 In DapperLib/Dapper;

· Raveendra-Pai opened on Jun 19, 2026

Proposal: Built-in extensibility for structured logging (commands, parameters, connections, transactions)

Status: Open.

#2201 In DapperLib/Dapper;

· paulpeeters opened on Mar 30, 2026

No QueryAsync overload which accepts CommandDefinition, for cancellation, and Type array, for unbounded map

Status: Open.

#2193 In DapperLib/Dapper;

· tomupson opened on Feb 22, 2026

Feature Request: Support for Open Generic TypeHandler registration

Status: Open.

#2190 In DapperLib/Dapper;

· frozzway opened on Feb 4, 2026

QueryUnbufferedAsync cancels command unnecessarily for Npgsql, causing performance degradation

Status: Open.

#2188 In DapperLib/Dapper;

· alexgrudanov opened on Jan 16, 2026

Nullable input parameter not supplied when NULL

bug

needs-triage

Status: Open.

#2187 In DapperLib/Dapper;

· ChristofColle-VIVES opened on Jan 8, 2026

Command not disposed with async using and ExecuteReaderAsync

bug

needs-triage

Status: Open.

#2185 In DapperLib/Dapper;

· juicelinkVP opened on Nov 13, 2025

[Question]: Unused value in the QueryAsync<T>

Status: Open.

#2184 In DapperLib/Dapper;

· asylkhan-azat opened on Oct 30, 2025

Literal replacements causing DAP214

bug

needs-triage

Status: Open.

#2181 In DapperLib/Dapper;

· bsagal opened on Sep 28, 2025

Possible bug: GridReader constructor uses DynamicParameters cast instead of IParameterCallbacks

bug

needs-triage

Status: Open.

#2179 In DapperLib/Dapper;

· zzjbook opened on Aug 22, 2025