Splunk DB Connect: Is there a limit on the size of a SQL query?

Hi All, I am using Splunk DB Connect v1 to run SQL query in Splunk. My query size is 8,865 characters. The query runs fine in MySQL client but does not run in Splunk. If I reduce the size to ~8,200 chars by keeping the field names short then the query runs fine. Is there a limit on the number of characters for SQL query? Thanks, Bindu