more efficient implementation of exists?
more efficient implementation of exists?

Endika/metabase,lukaswelte/metabase,lukaswelte/metabase,Endika/metabase,Endika/metabase,lukaswelte/metabase,lukaswelte/metabase,zoowii/metabase,jonasdiel/metabase-ptBR,dashkb/metabase,jonasdiel/metabase-ptBR,jonasdiel/metabase-ptBR,jonasdiel/metabase-ptBR,dashkb/metabase,zoowii/metabase,zoowii/metabase,blueoceanideas/metabase,blueoceanideas/metabase,zoowii/metabase,dashkb/metabase,zoowii/metabase,lukaswelte/metabase,Endika/metabase,dashkb/metabase,blueoceanideas/metabase,blueoceanideas/metabase,blueoceanideas/metabase,jonasdiel/metabase-ptBR,dashkb/metabase,Endika/metabase