A system , comprising: a master node with instructions executed by a master node processor to receive a query over a network from a client machine and distribute query segments over the network ; and a plurality of worker nodes (150_1, 150_N) to receive the query segments, wherein each worker node (150_1, 150_N) includes instructions executed by a worker node processor to construct from a columnar file a term map characterizing a term from the columnar file, row identifications from the columnar file and a Boolean indicator for each row identification characterizing whether the term is present in the row specified by the row identification, wherein the term map is dynamically constructed in response to a query segment, cache the term map in dynamic memory , using Lucene, collect from the term map values responsive to the query segment, and send the values to the master node , wherein the master node aggregates values from the plurality of worker nodes (150_1, 150_N) to form a result that is returned to the client machine over the network ; wherein the columnar file is a Parquet file; and wherein the instructions executed by a worker node processor to construct from a locally stored columnar file a term map include instructions to interact with Elasticsearch code modules. a master node with instructions executed by a master node processor to receive a query over a network from a client machine and distribute query segments over the network ; and a plurality of worker nodes (150_1, 150_N) to receive the query segments, wherein each worker node (150_1, 150_N) includes instructions executed by a worker node processor to construct from a columnar file a term map characterizing a term from the columnar file, row identifications from the columnar file and a Boolean indicator for each row identification characterizing whether the term is present in the row specified by the row identification, wherein the term map is dynamically constructed in response to a query segment, cache the term map in dynamic memory , using Lucene, collect from the term map values responsive to the query segment, and send the values to the master node , wherein the master node aggregates values from the plurality of worker nodes (150_1, 150_N) to form a result that is returned to the client machine over the network ; wherein the columnar file is a Parquet file; and wherein the instructions executed by a worker node processor to construct from a locally stored columnar file a term map include instructions to interact with Elasticsearch code modules. construct from a columnar file a term map characterizing a term from the columnar file, row identifications from the columnar file and a Boolean indicator for each row identification characterizing whether the term is present in the row specified by the row identification, wherein the term map is dynamically constructed in response to a query segment, cache the term map in dynamic memory , using Lucene, collect from the term map values responsive to the query segment, and send the values to the master node , wherein the master node aggregates values from the plurality of worker nodes (150_1, 150_N) to form a result that is returned to the client machine over the network ; wherein the columnar file is a Parquet file; and wherein the instructions executed by a worker node processor to construct from a locally stored columnar file a term map include instructions to interact with Elasticsearch code modules. <EOS>