Default PSORT_NPROCS values for attached indexes

The default number of threads is different for attached indexes.

If the PSORT_NPROCS environment variable is set, you get the specified number of sort threads for each fragment of the index that is being built.

If PSORT_NPROCS is not set, or if it is set to 0, you get two sort threads for each fragment of the index unless you have a single-CPU virtual processor. If you have a single-CPU virtual processor, you get one sort thread for each fragment of the index.

For additional information about the PSORT_NPROCS environment variable, see your HCL Informix® Administrator's Guide and your .