Added support for string filters on attributes of type "id".
Added support for string filters on attributes of type "id".

syrenio/powerset,XDATA-Year-3/UpSet,zhanghuijun-hello/test,XDATA-Year-3/UpSet,VCG/upset,syrenio/powerset,VCG/upset,syrenio/upset,syrenio/upset,VCG/upset,syrenio/upset,XDATA-Year-3/UpSet,XDATA-Year-3/UpSet,zhanghuijun-hello/test,XDATA-Year-3/UpSet,syrenio/powerset,zhanghuijun-hello/test,VCG/upset,syrenio/upset,zhanghuijun-hello/test,syrenio/powerset