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hllSparseAdd(): more correct dense conversion conditional.

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We want to promote if the total string size exceeds the resulting size
after the upgrade.
This commit is contained in:
antirez 2014-04-14 09:36:27 +02:00
parent b7571b7453
commit 3b20003503
1 changed files with 1 additions and 1 deletions
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src/hyperloglog.c
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@ -801,7 +801,7 @@ int hllSparseAdd(robj *o, unsigned char *ele, size_t elesize) {
int oldlen = is_xzero ? 2 : 1;
int deltalen = seqlen-oldlen;
if (deltalen > 0 && sdslen(o->ptr) > HLL_SPARSE_MAX) goto promote;
if (deltalen > 0 && sdslen(o->ptr)+deltalen > HLL_SPARSE_MAX) goto promote;
if (deltalen && next) memmove(next+deltalen,next,next-sparse);
sdsIncrLen(o->ptr,deltalen);
memcpy(p,seq,seqlen);