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| author | Jeff Davis <jdavis@postgresql.org> | 2020-02-06 19:39:47 -0800 |
|---|---|---|
| committer | Jeff Davis <jdavis@postgresql.org> | 2020-02-06 20:34:01 -0800 |
| commit | 4eaea3db150af56aa2e40efe91997fd25f3b6d73 (patch) | |
| tree | 8ccd0fb526260581c2356faa9a6f54909b6ff1b2 /src/backend/jit/llvm/llvmjit_expr.c | |
| parent | e6f86f8dd9835b18890fd8e9868884dec37e3bd7 (diff) | |
| download | postgresql-4eaea3db150af56aa2e40efe91997fd25f3b6d73.tar.gz postgresql-4eaea3db150af56aa2e40efe91997fd25f3b6d73.zip | |
Introduce TupleHashTableHash() and LookupTupleHashEntryHash().
Expose two new entry points: one for only calculating the hash value
of a tuple, and another for looking up a hash entry when the hash
value is already known. This will be useful for disk-based Hash
Aggregation to avoid recomputing the hash value for the same tuple
after saving and restoring it from disk.
Discussion: https://postgr.es/m/37091115219dd522fd9ed67333ee8ed1b7e09443.camel%40j-davis.com
Diffstat (limited to 'src/backend/jit/llvm/llvmjit_expr.c')
0 files changed, 0 insertions, 0 deletions