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| author | Robert Haas <rhaas@postgresql.org> | 2016-04-27 10:55:32 -0400 |
|---|---|---|
| committer | Robert Haas <rhaas@postgresql.org> | 2016-04-27 10:55:32 -0400 |
| commit | 360ca27a9b9793f3939c9f70de77c1272a110362 (patch) | |
| tree | d73f5fe4475aedc51b290526d743cf9895a66744 /src | |
| parent | 59eb55127906b943ff155240eebc161df8edb62f (diff) | |
| download | postgresql-360ca27a9b9793f3939c9f70de77c1272a110362.tar.gz postgresql-360ca27a9b9793f3939c9f70de77c1272a110362.zip | |
Remove mergeHyperLogLog.
It's buggy. If somebody needs this later, they'll need to put back
a non-buggy vesion of it.
Discussion: CAM3SWZT-i6R9JU5YXa8MJUou2_r3LfGJZpQ9tYa1BYxfkj0=cQ@mail.gmail.com
Discussion: CAM3SWZRUOLsYoTT83QgdUy9D8ehYWm_nvbrrfcOOzikiRfFY7g@mail.gmail.com
Peter Geoghegan
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/lib/hyperloglog.c | 22 | ||||
| -rw-r--r-- | src/include/lib/hyperloglog.h | 1 |
2 files changed, 0 insertions, 23 deletions
diff --git a/src/backend/lib/hyperloglog.c b/src/backend/lib/hyperloglog.c index fa7f05a2411..6d246ce77bc 100644 --- a/src/backend/lib/hyperloglog.c +++ b/src/backend/lib/hyperloglog.c @@ -221,28 +221,6 @@ estimateHyperLogLog(hyperLogLogState *cState) } /* - * Merges the estimate from one HyperLogLog state to another, returning the - * estimate of their union. - * - * The number of registers in each must match. - */ -void -mergeHyperLogLog(hyperLogLogState *cState, const hyperLogLogState *oState) -{ - int r; - - if (cState->nRegisters != oState->nRegisters) - elog(ERROR, "number of registers mismatch: %zu != %zu", - cState->nRegisters, oState->nRegisters); - - for (r = 0; r < cState->nRegisters; ++r) - { - cState->hashesArr[r] = Max(cState->hashesArr[r], oState->hashesArr[r]); - } -} - - -/* * Worker for addHyperLogLog(). * * Calculates the position of the first set bit in first b bits of x argument diff --git a/src/include/lib/hyperloglog.h b/src/include/lib/hyperloglog.h index b999b3056a6..ee88f8f781a 100644 --- a/src/include/lib/hyperloglog.h +++ b/src/include/lib/hyperloglog.h @@ -63,7 +63,6 @@ extern void initHyperLogLog(hyperLogLogState *cState, uint8 bwidth); extern void initHyperLogLogError(hyperLogLogState *cState, double error); extern void addHyperLogLog(hyperLogLogState *cState, uint32 hash); extern double estimateHyperLogLog(hyperLogLogState *cState); -extern void mergeHyperLogLog(hyperLogLogState *cState, const hyperLogLogState *oState); extern void freeHyperLogLog(hyperLogLogState *cState); #endif /* HYPERLOGLOG_H */ |