| { |
| "head" : { |
| "version" : 1, |
| "generator" : { |
| "type" : "optiq", |
| "info" : "na" |
| }, |
| "type" : "APACHE_DRILL_PHYSICAL" |
| }, |
| "graph" : [ { |
| "pop" : "parquet-scan", |
| "@id" : 1, |
| "entries" : [ { |
| "path" : "tpch/nation.parquet" |
| } ], |
| "storage" : { |
| "type" : "file", |
| "connection" : "classpath:///", |
| "enabled" : true |
| }, |
| "format" : { |
| "type" : "parquet" |
| } |
| }, { |
| "pop" : "project", |
| "@id" : 2, |
| "exprs" : [ { |
| "ref" : "$f0", |
| "expr" : "N_REGIONKEY" |
| }, { |
| "ref" : "$f1", |
| "expr" : "N_NATIONKEY" |
| } ], |
| "child" : 1 |
| }, { |
| "pop" : "hash-aggregate", |
| "@id" : 3, |
| "child" : 2, |
| "phase" : "PHASE_1of1", |
| "keys" : [ { |
| "ref" : "$f0", |
| "expr" : "$f0" |
| } ], |
| "exprs" : [ { |
| "ref" : "SUM", |
| "expr" : "sum($f1) " |
| }, { |
| "ref" : "MIN", |
| "expr" : "min($f1) " |
| }, { |
| "ref" : "MAX", |
| "expr" : "max($f1) " |
| }, { |
| "ref" : "COUNT", |
| "expr" : "count($f1) " |
| }, { |
| "ref" : "AVG", |
| "expr" : "avg($f1) " |
| } ] |
| }, { |
| "pop" : "screen", |
| "@id" : 4, |
| "child" : 3 |
| } ] |
| } |
