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Fix mdb_load append option

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Use MDB_CURRENT to avoid seeking to new key when appending DUPs.
Reinit cursor on new batch, if appending DUPs.
This commit is contained in:
hyc 2018-05-08 06:14:39 +01:00
parent fa958d4b4b
commit 00dd93971a
2 changed files with 9 additions and 5 deletions
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4
external/db_drivers/liblmdb/mdb.c vendored
View file

@ -7231,7 +7231,7 @@ mdb_cursor_put(MDB_cursor *mc, MDB_val *key, MDB_val *data,
dkey.mv_size = 0;
if (flags == MDB_CURRENT) {
if (flags & MDB_CURRENT) {
if (!(mc->mc_flags & C_INITIALIZED))
return EINVAL;
rc = MDB_SUCCESS;
@ -7624,7 +7624,7 @@ put_sub:
xdata.mv_size = 0;
xdata.mv_data = "";
leaf = NODEPTR(mc->mc_pg[mc->mc_top], mc->mc_ki[mc->mc_top]);
if (flags & MDB_CURRENT) {
if (flags == MDB_CURRENT) {
xflags = MDB_CURRENT|MDB_NOSPILL;
} else {
mdb_xcursor_init1(mc, leaf);

10
external/db_drivers/liblmdb/mdb_load.c vendored
View file

@ -304,7 +304,7 @@ int main(int argc, char *argv[])
MDB_cursor *mc;
MDB_dbi dbi;
char *envname;
int envflags = 0, putflags = 0;
int envflags = MDB_NOSYNC, putflags = 0;
int dohdr = 0, append = 0;
MDB_val prevk;
@ -392,7 +392,6 @@ int main(int argc, char *argv[])
kbuf.mv_data = malloc(kbuf.mv_size * 2);
k0buf.mv_size = kbuf.mv_size;
k0buf.mv_data = (char *)kbuf.mv_data + kbuf.mv_size;
prevk.mv_size = 0;
prevk.mv_data = k0buf.mv_data;
while(!Eof) {
@ -416,6 +415,7 @@ int main(int argc, char *argv[])
fprintf(stderr, "mdb_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
prevk.mv_size = 0;
if (append) {
mdb_set_compare(txn, dbi, greater);
if (flags & MDB_DUPSORT)
@ -443,7 +443,7 @@ int main(int argc, char *argv[])
appflag = MDB_APPEND;
if (flags & MDB_DUPSORT) {
if (prevk.mv_size == key.mv_size && !memcmp(prevk.mv_data, key.mv_data, key.mv_size))
appflag = MDB_APPENDDUP;
appflag = MDB_CURRENT|MDB_APPENDDUP;
else {
memcpy(prevk.mv_data, key.mv_data, key.mv_size);
prevk.mv_size = key.mv_size;
@ -477,6 +477,10 @@ int main(int argc, char *argv[])
fprintf(stderr, "mdb_cursor_open failed, error %d %s\n", rc, mdb_strerror(rc));
goto txn_abort;
}
if (appflag & MDB_APPENDDUP) {
MDB_val k, d;
mdb_cursor_get(mc, &k, &d, MDB_LAST);
}
batch = 0;
}
}