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Brandon Williams commented on CASSANDRA-17190: ---------------------------------------------- This is a python dtest failure, so you need to first clone that repo: https://github.com/apache/cassandra-dtest/ and then follow the readme to get it set up: https://github.com/apache/cassandra-dtest/blob/trunk/README.md Once that is done, you can run just that test with something like: {code} pytest --cassandra-dir=/path/to/cassandra user_functions_test.py::TestUserFunctions::test_udf_overload {code} > Add support for String contatenation through the "+" operator > ------------------------------------------------------------- > > Key: CASSANDRA-17190 > URL: https://issues.apache.org/jira/browse/CASSANDRA-17190 > Project: Cassandra > Issue Type: Improvement > Components: CQL/Interpreter > Reporter: Benjamin Lerer > Assignee: Manish Ghildiyal > Priority: Normal > Labels: AdventCalendar2021, lhf > Fix For: 4.x > > Time Spent: 2h > Remaining Estimate: 0h > > Since 4.0, Cassandra support operations on numeric types and on some temporal > types. > We should add support for string concatenations through the {{+}} operator. > +Additional information for newcomers:+ > Cassandra has 2 string types: {{Text}} ({{UTF8Type}}) and ascii > ({{AsciiType}}) both are sub-classes of ({{StringType}}). In order to add > support for string concatenation you will need to add a new method to > {{StringType}} and modify {{OperationFcts}} to add the new functions (one for > each combination of types: ascii/ascii, ascii/text, text/ascii and text/text). > The unit test should be added to {{OperationFctsTest}}. > To allow for concatenating constants (eg: SELECT v1 + ' ' + v2 FROM ...) you > will need to add a {{getPreferedTypeFor}} method to > {{org.apache.cassandra.Constants.Type.STRING}} that determine the constant > type based on its content (ascii or not). -- This message was sent by Atlassian Jira (v8.20.1#820001) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org