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Posted to commits@cassandra.apache.org by "ribaraka (via GitHub)" <gi...@apache.org> on 2026/03/30 15:21:46 UTC
[I] MapScan does not preserve top-level UDT values (returns empty map) [cassandra-gocql-driver]
ribaraka opened a new issue, #1938:
URL: https://github.com/apache/cassandra-gocql-driver/issues/1938
When reading rows that contain a top-level UDT column, `MapScan(map[string]interface{})` does not preserve the decoded UDT field values, while `Scan(&map[string]interface{})` works as expected.
For a top-level `frozen<udt>` column:
- Scan(...) can decode the UDT correctly
- MapScan(...) returns the row, but the UDT value is an empty map[string]interface{}
### Expected behavior
MapScan should preserve top-level UDT contents consistently with Scan
A non-null UDT column should decode into a populated map[string]interface{} containing its field values
### This is particularly problematic because:
- The column itself is present
- No error is raised
- The data is silently lost rather than missing or failing loudly
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Re: [I] MapScan does not preserve top-level UDT values (returns empty map) [cassandra-gocql-driver]
Posted by "worryg0d (via GitHub)" <gi...@apache.org>.
worryg0d commented on issue #1938:
URL: https://github.com/apache/cassandra-gocql-driver/issues/1938#issuecomment-4766117221
It should be fixed since 2.1.1. Feel free to re-open it still persists
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Re: [I] MapScan does not preserve top-level UDT values (returns empty map) [cassandra-gocql-driver]
Posted by "worryg0d (via GitHub)" <gi...@apache.org>.
worryg0d commented on issue #1938:
URL: https://github.com/apache/cassandra-gocql-driver/issues/1938#issuecomment-4198427811
Should be fixed on trunk
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Re: [I] MapScan does not preserve top-level UDT values (returns empty map) [cassandra-gocql-driver]
Posted by "worryg0d (via GitHub)" <gi...@apache.org>.
worryg0d commented on issue #1938:
URL: https://github.com/apache/cassandra-gocql-driver/issues/1938#issuecomment-4156301028
Jira tiket - CASSGO-115
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Re: [I] MapScan does not preserve top-level UDT values (returns empty map) [cassandra-gocql-driver]
Posted by "worryg0d (via GitHub)" <gi...@apache.org>.
worryg0d commented on issue #1938:
URL: https://github.com/apache/cassandra-gocql-driver/issues/1938#issuecomment-4342947382
2.1.1 release is out so it should be fixed
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Re: [I] MapScan does not preserve top-level UDT values (returns empty map) [cassandra-gocql-driver]
Posted by "worryg0d (via GitHub)" <gi...@apache.org>.
worryg0d closed issue #1938: MapScan does not preserve top-level UDT values (returns empty map)
URL: https://github.com/apache/cassandra-gocql-driver/issues/1938
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