diff options
Diffstat (limited to 'src/backend/utils/adt/jsonfuncs.c')
| -rw-r--r-- | src/backend/utils/adt/jsonfuncs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/backend/utils/adt/jsonfuncs.c b/src/backend/utils/adt/jsonfuncs.c index 0d3e1121cd0..1d63abc11b9 100644 --- a/src/backend/utils/adt/jsonfuncs.c +++ b/src/backend/utils/adt/jsonfuncs.c @@ -3658,6 +3658,12 @@ populate_recordset_worker(FunctionCallInfo fcinfo, const char *funcname, if (PG_ARGISNULL(json_arg_num)) PG_RETURN_NULL(); + /* + * Forcibly update the cached tupdesc, to ensure we have the right tupdesc + * to return even if the JSON contains no rows. + */ + update_cached_tupdesc(&cache->c.io.composite, cache->fn_mcxt); + state = palloc0(sizeof(PopulateRecordsetState)); /* make tuplestore in a sufficiently long-lived memory context */ |