metadataCacheStatsJson method

String? metadataCacheStatsJson()

Returns metadata cache statistics as JSON payload.

Example keys: hits, misses, size, max_size, ttl_secs. Returns null on failure.

Implementation

String? metadataCacheStatsJson() {
  final data = callWithBuffer(
    (buf, bufLen, outWritten) =>
        _bindings.odbc_metadata_cache_stats(buf, bufLen, outWritten),
    initialSize: 128,
  );
  if (data == null || data.isEmpty) {
    return null;
  }
  return utf8.decode(data);
}