dropmetadata.js Filter

All events within the replication stream contain metadata about each event. This information can be individually processed and manipulated. The dropmetadata filter removes specific metadata from each event, configured through the option parameter to the filter.

Pre-configured filter name	dropmetadata
JavaScript Filter File	tungsten-replicator/support/filters-javascript/dropmetadata.js
Property prefix	replicator.filter.ansiquotes
Stage compatibility	binlog-to-q, q-to-dbms
tpm Option compatibility	svc-extractor-filters, svc-applier-filters
Data compatibility	Any event

Parameters

Parameter	Type	Default	Description
option	string	(none)	Name of the metadata field to be dropped

Metadata information can be processed at the event top-level:

metaData = event.getDBMSEvent().getMetadata();
for(m = 0; m < metaData.size(); m++)
{
  option = metaData.get(m);
  if(option.getOptionName().compareTo(optionName)==0)
  {
      metaData.remove(m);
      break;
  }
}