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24d85952a5
Increases the number of tapes in a logical tape set. This will be important for disk-based hash aggregation, because the maximum number of tapes is not known ahead of time. While discussing this change, it was observed to regress the performance of Sort for at least one test case. The performance regression was because some versions of GCC switch to an inlined version of memcpy() in LogicalTapeWrite() after this change. No performance regression for clang was observed. Because the regression is due to an arbitrary decision by the compiler, I decided it shouldn't hold up this change. If it needs to be fixed, we can find a workaround. Author: Adam Lee, Jeff Davis Discussion: https://postgr.es/m/e54bfec11c59689890f277722aaaabd05f78e22c.camel%40j-davis.com |
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| .. | ||
| .gitignore | ||
| gen_qsort_tuple.pl | ||
| logtape.c | ||
| Makefile | ||
| sharedtuplestore.c | ||
| sortsupport.c | ||
| tuplesort.c | ||
| tuplestore.c | ||