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cassandracql3

Cassandra non counter family


I attempted to create a table with counter as one of the column type in cassandra but getting the following error:

ConfigurationException: ErrorMessage code=2300 [Query invalid because of configuration issue] message="Cannot add a counter column (transaction_count) in a non counter column family"

My table schema is as follows:

CREATE TABLE MARKET_DATA_TRANSACTION_COUNT (
TRADE_DATE TIMESTAMP,      
SECURITY_EXCHANGE TEXT,
PRODUCT_CODE TEXT,
SYMBOL TEXT,
SPREAD_TYPE TEXT,     
USER_DEFINED TEXT,
PRODUCT_GUID TEXT,
CHANNEL_ID INT,  
SECURITY_TYPE TEXT,
INSTRUMENT_GUID TEXT,
SECURITY_ID INT,   
TRANSACTION_COUNT COUNTER,
PRIMARY KEY (TRADE_DATE));

Solution

  • That's a limitation of the current counter implementation. You can't mix counters and regular columns in the same table. So you need a separate table for counters.

    They are thinking of removing this limitation in Cassandra 3.x. See this Jira ticket.