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mdbx: fix extra assertion.

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Fixes https://github.com/erthink/libmdbx/issues/248.
This commit is contained in:
Леонид Юрьев (Leonid Yuriev) 2021-12-06 21:17:24 +03:00 committed by Leonid Yuriev
parent c484a92933
commit a899056fd1
1 changed files with 6 additions and 1 deletions
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7
src/core.c
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@ -14793,6 +14793,7 @@ int mdbx_cursor_put(MDBX_cursor *mc, const MDBX_val *key, MDBX_val *data,
}
} else {
struct cursor_set_result csr =
/* olddata may not be updated in case LEAF2-page of dupfixed-subDB */
mdbx_cursor_set(mc, (MDBX_val *)key, &olddata, MDBX_SET);
rc = csr.err;
exact = csr.exact;
@ -14807,7 +14808,11 @@ int mdbx_cursor_put(MDBX_cursor *mc, const MDBX_val *key, MDBX_val *data,
if (unlikely(mc->mc_flags & C_SUB)) {
/* nested subtree of DUPSORT-database with the same key,
* nothing to update */
mdbx_assert(env, data->iov_len == 0 && olddata.iov_len == 0);
mdbx_assert(env, data->iov_len == 0 &&
(olddata.iov_len == 0 ||
/* olddata may not be updated in case LEAF2-page
of dupfixed-subDB */
(mc->mc_db->md_flags & MDBX_DUPFIXED)));
return MDBX_SUCCESS;
}
if (unlikely(flags & MDBX_ALLDUPS) && mc->mc_xcursor &&