MonetDB: compressedcandidates - Detect repeated compression

[Martin Kersten]

Changeset: 8be3b82a8e5e for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=8be3b82a8e5e
Modified Files:
        monetdb5/modules/mal/bitcandidates.c
Branch: compressedcandidates
Log Message:

Detect repeated compression


diffs (12 lines):

diff --git a/monetdb5/modules/mal/bitcandidates.c 
b/monetdb5/modules/mal/bitcandidates.c
--- a/monetdb5/modules/mal/bitcandidates.c
+++ b/monetdb5/modules/mal/bitcandidates.c
@@ -27,7 +27,7 @@ BCLcompress(Client cntxt, MalBlkPtr mb, 
        b = BATdescriptor(*val);
        if( b == NULL)
                throw(MAL,"compress",INTERNAL_BAT_ACCESS);
-       if ( b->ttype == TYPE_void || isVIEW(b) || BATcount(b) == 0){
+       if ( b->ttype == TYPE_void || isVIEW(b) || b->ttype == TYPE_msk || 
BATcount(b) == 0){
                BBPkeepref(*ret = *val);
                return MAL_SUCCEED;
        }
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