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Fix for bug #128 about the RENAME command.

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This commit is contained in:
antirez 2011-10-10 15:21:19 +02:00
parent 02a3e58258
commit 4ab18a3331
1 changed files with 6 additions and 3 deletions
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9
src/db.c
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@ -328,6 +328,7 @@ void shutdownCommand(redisClient *c) {
void renameGenericCommand(redisClient *c, int nx) {
robj *o;
time_t expire;
/* To use the same key as src and dst is probably an error */
if (sdscmp(c->argv[1]->ptr,c->argv[2]->ptr) == 0) {
@ -339,16 +340,18 @@ void renameGenericCommand(redisClient *c, int nx) {
return;
incrRefCount(o);
expire = getExpire(c->db,c->argv[1]);
if (lookupKeyWrite(c->db,c->argv[2]) != NULL) {
if (nx) {
decrRefCount(o);
addReply(c,shared.czero);
return;
}
dbOverwrite(c->db,c->argv[2],o);
} else {
dbAdd(c->db,c->argv[2],o);
/* Overwrite: delete the old key before creating the new one with the same name. */
dbDelete(c->db,c->argv[2]);
}
dbAdd(c->db,c->argv[2],o);
if (expire != -1) setExpire(c->db,c->argv[2],expire);
dbDelete(c->db,c->argv[1]);
signalModifiedKey(c->db,c->argv[1]);
signalModifiedKey(c->db,c->argv[2]);