Changeset: dbe4240b5f16 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/dbe4240b5f16
Branch: literal_features
Log Message:
merge with default
diffs (54 lines):
diff --git a/monetdb5/modules/atoms/json.c b/monetdb5/modules/atoms/json.c
--- a/monetdb5/modules/atoms/json.c
+++ b/monetdb5/modules/atoms/json.c
@@ -1058,6 +1058,7 @@ JSONtoken(JSON *jt, const char *j, const
str msg;
int nxt, idx = JSONnew(jt);
const char *string_start = j;
+ int pidx;
if (jt->error)
return idx;
@@ -1095,12 +1096,36 @@ JSONtoken(JSON *jt, const char *j, const
int chld = JSONtoken(jt, j, next);
if (jt->error)
return idx;
- jt->elm[nxt].child = chld;
- jt->elm[nxt].value++;
- jt->elm[nxt].valuelen -= 2;
- JSONappend(jt, idx, nxt);
- if (jt->error)
- return idx;
+
+ /* Search for a duplicate key */
+ for(pidx = nxt - 1; pidx > idx; pidx--) {
+ if (jt->elm[pidx].kind == JSON_ELEMENT &&
+ jt->elm[pidx].valuelen ==
jt->elm[nxt].valuelen - 2 &&
+ strncmp(jt->elm[pidx].value,
jt->elm[nxt].value + 1,
+ jt->elm[nxt].valuelen)
== 0) {
+ break;
+ }
+ }
+
+ /* Duplicate found: Change the value of the previous
key. */
+ if (pidx > idx) {
+ jt->elm[pidx].child = chld;
+ /* Note that we do not call JSONappend here.
+ *
+ * Normally we would de-allocate the old child
value and the new key,
+ * but since we are using an arena provided by
JSONnew, we don't need to.
+ * This might get expensive for big objects
with lagre values for
+ * repeated keys.
+ */
+
+ } else {
+ jt->elm[nxt].child = chld;
+ jt->elm[nxt].value++;
+ jt->elm[nxt].valuelen -= 2;
+ JSONappend(jt, idx, nxt);
+ if (jt->error)
+ return idx;
+ }
j = *next;
skipblancs(j);
if (*j == '}')
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