reviewing-oracle-to-postgres-migration

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Configure Npgsql for UTC via Connection String or AppContext Npgsql 6+ ships with `EnableLegacyTimestampBehavior` set to `false` by default, which causes `timestamptz` values to be returned as `DateTime` with `Kind=Utc`. Explicitly setting the switch at startup is still recommended to guard against accidental opt-in to legacy mode (e.g., via a config file or a transitive dependency) and to make the intent visible to future maintainers: ```csharp // Program.cs / Startup.cs — apply once at applica

Tool: reviewing-oracle-to-postgres-migration/references/oracle-to-postgres-timestamp-timezone.md [2/2] Description: Assert.True(retrieved.CreatedAt >= before, "Persisted CreatedAt should not be earlier than the pre-insert UTC timestamp."); } ``` ### Test: Verify timestamp comparisons across Oracle and PostgreSQL baselines ```csharp [Fact] public async Task TimestampComparison_ShouldReturnSameRowsAsOracle() { var cutoff = DateTime.UtcNow.AddDays(-1); var oracleResults = await oracleRepository.Get

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