Merge #36165

36165: exec: add columnar hashRouter r=asubiotto a=asubiotto Still need to add a random integration test and clean up comments/commit message. PTAL if you have a chance though as the general structure is finished (don't mind the nits). Co-authored-by: Alfonso Subiotto Marqués <alfonso@cockroachlabs.com>
cockroachdb · Apr 5, 2019 · 1a5eaba · 1a5eaba
2 parents d6a33f1 + 3a49fb6
commit 1a5eaba
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Showing 4 changed files with 1,289 additions and 5 deletions.
diff --git a/pkg/sql/exec/hash.go b/pkg/sql/exec/hash.go
@@ -30,11 +30,9 @@ const (
 var hashKey [4]uintptr
 
 func init() {
-	rand.Read((*[len(hashKey) * ptrSize]byte)(unsafe.Pointer(&hashKey))[:])
-	hashKey[0] |= 1 // make sure these numbers are odd
-	hashKey[1] |= 1
-	hashKey[2] |= 1
-	hashKey[3] |= 1
+	for i := range hashKey {
+		hashKey[i] = 1
+	}
 }
 
 func readUnaligned32(p unsafe.Pointer) uint32 {