This topic lists environment variables that relate to the sorting functionality.
| Variable | Description |
|---|---|
| MFJSENGINE | Specifies which sort engine the utility MFJSORT is to emulate. |
| MFJSTATS | Specifies to create a report containing statistics for a SORT. |
| SORTCOMPRESS | Tells the system whether or not to execute a compression routine on each record to be sorted. SORTCOMPRESS=5 allows for run-length encoding of sort records, resulting in much better performance when records contain multiple repeated characters. Note that 5 is the only valid value for this environment variable. |
| SORTSCHEME | Use in conjunction with SORTSPACE for improved performance. This is activated by setting SORTSCHEME=1. This is the only valid value for the environment variable. See SORTSPACE below for more information. |
| SORTSPACE | The amount of memory to be allocated to internal workspace for SORT operations. This can be specified in different formats: for example, you could specify 64M, 2G, and 1000000 to give sort memory areas of 64 Megabytes, 2 Gigabytes and 1000000 bytes respectively. |
| SORTTEMPSPACE | The amount of temporary memory to be allocated to internal workspace for SORT operations. This can be specified in different formats much like the SORTSPACE environment variable. By using SORTTEMPSPACE, you can maximize available memory. |
| SORTTYPE | Setting SORTTYPE=2 forces SORT to use the file handler, so that format modifications are picked up from the extfh.cfg file. Not setting this means SORT will try to use CBL_ routines to read and write files to improve performance. Note that 2 is the only valid value for this environment variable. |