Fix for prepared statements in multi-node environments #15
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jstasiewicz
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Fix for prepared statements in multi-node environments
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My mistake. Thanks! |
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MAJOR ACHIEVEMENT: Complete recursive type parsing for vectors! IMPLEMENTED: - Recursive type parser using existing DataTypeClassNameParser - Full support for frozen<> wrapper parsing - Support for nested collections: vector<frozen<list<T>>>, etc. - Support for tuples in vectors: vector<tuple<...>> - Support for arbitrary nesting depth - Proper handling of parentheses and angle brackets SUPPORTED TYPES: - vector<frozen<list<int>>> - vector<frozen<set<text>>> - vector<frozen<map<K,V>>> - vector<tuple<...>> - vector<frozen<list<frozen<set<uuid>>>>> - Any valid Cassandra nested type combination TECHNICAL DETAILS: - Uses DataTypeClassNameParser::parse_one() for recursive parsing - Correctly parses from right-to-left to find dimension - Handles nested parentheses and angle brackets - No hardcoded types or assumptions - Fails explicitly on parse errors TESTS: - Comprehensive unit tests for nested parsing - Integration tests for all complex types - Round-trip tests for nested collections This completes the CRITICAL requirement for full nested type support!
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Prepared statements in multi-node environments are failing. After switching the cassandra node, the cpp-driver tries to execute the prepared statement instead of preparing it. As a result, the prepared statement is not available on the cassandra node and the prepared statement can not be executed.
For additional information, see the discussion at the user mailing list: https://groups.google.com/a/lists.datastax.com/forum/#!topic/cpp-driver-user/d0TngHHDIOk