clean up the upser executor and use the same schema for update inside upsert
clean up the upser executor and use the same schema for update inside upsert

ingted/voltdb,creative-quant/voltdb,VoltDB/voltdb,ingted/voltdb,simonzhangsm/voltdb,kumarrus/voltdb,simonzhangsm/voltdb,kumarrus/voltdb,simonzhangsm/voltdb,migue/voltdb,zuowang/voltdb,simonzhangsm/voltdb,creative-quant/voltdb,creative-quant/voltdb,flybird119/voltdb,migue/voltdb,paulmartel/voltdb,simonzhangsm/voltdb,wolffcm/voltdb,creative-quant/voltdb,wolffcm/voltdb,zuowang/voltdb,migue/voltdb,paulmartel/voltdb,deerwalk/voltdb,deerwalk/voltdb,deerwalk/voltdb,kumarrus/voltdb,migue/voltdb,wolffcm/voltdb,creative-quant/voltdb,paulmartel/voltdb,VoltDB/voltdb,flybird119/voltdb,kumarrus/voltdb,VoltDB/voltdb,creative-quant/voltdb,flybird119/voltdb,wolffcm/voltdb,simonzhangsm/voltdb,creative-quant/voltdb,zuowang/voltdb,ingted/voltdb,migue/voltdb,migue/voltdb,flybird119/voltdb,paulmartel/voltdb,paulmartel/voltdb,migue/voltdb,ingted/voltdb,simonzhangsm/voltdb,migue/voltdb,wolffcm/voltdb,flybird119/voltdb,VoltDB/voltdb,wolffcm/voltdb,creative-quant/voltdb,wolffcm/voltdb,wolffcm/voltdb,simonzhangsm/voltdb,paulmartel/voltdb,VoltDB/voltdb,deerwalk/voltdb,kumarrus/voltdb,deerwalk/voltdb,VoltDB/voltdb,zuowang/voltdb,kumarrus/voltdb,flybird119/voltdb,deerwalk/voltdb,zuowang/voltdb,zuowang/voltdb,zuowang/voltdb,ingted/voltdb,VoltDB/voltdb,kumarrus/voltdb,paulmartel/voltdb,ingted/voltdb,deerwalk/voltdb,ingted/voltdb,deerwalk/voltdb,flybird119/voltdb,flybird119/voltdb,zuowang/voltdb,paulmartel/voltdb,kumarrus/voltdb,ingted/voltdb