| ==== |
| ---- QUERY |
| # Explain a simple hash join query. |
| explain |
| select * |
| from tpch.lineitem join tpch.orders on l_orderkey = o_orderkey; |
| ---- RESULTS: VERIFY_IS_EQUAL |
| 'Max Per-Host Resource Reservation: Memory=34.00MB' |
| 'Per-Host Resource Estimates: Memory=476.41MB' |
| '' |
| 'F02:PLAN FRAGMENT [UNPARTITIONED] hosts=1 instances=1' |
| 'Per-Host Resources: mem-estimate=0B mem-reservation=0B' |
| ' PLAN-ROOT SINK' |
| ' | mem-estimate=0B mem-reservation=0B' |
| ' |' |
| ' 04:EXCHANGE [UNPARTITIONED]' |
| ' mem-estimate=0B mem-reservation=0B' |
| ' tuple-ids=0,1 row-size=454B cardinality=5757710' |
| '' |
| 'F00:PLAN FRAGMENT [RANDOM] hosts=3 instances=3' |
| 'Per-Host Resources: mem-estimate=388.41MB mem-reservation=34.00MB' |
| ' DATASTREAM SINK [FRAGMENT=F02, EXCHANGE=04, UNPARTITIONED]' |
| ' | mem-estimate=0B mem-reservation=0B' |
| ' 02:HASH JOIN [INNER JOIN, BROADCAST]' |
| ' | hash predicates: l_orderkey = o_orderkey' |
| ' | fk/pk conjuncts: l_orderkey = o_orderkey' |
| ' | runtime filters: RF000 <- o_orderkey' |
| ' | mem-estimate=300.41MB mem-reservation=34.00MB spill-buffer=2.00MB' |
| ' | tuple-ids=0,1 row-size=454B cardinality=5757710' |
| ' |' |
| ' |--03:EXCHANGE [BROADCAST]' |
| ' | mem-estimate=0B mem-reservation=0B' |
| ' | tuple-ids=1 row-size=191B cardinality=1500000' |
| ' |' |
| ' 00:SCAN HDFS [tpch.lineitem, RANDOM]' |
| row_regex:.*partitions=1/1 files=1 size=.* |
| ' runtime filters: RF000 -> l_orderkey' |
| ' stats-rows=6001215 extrapolated-rows=disabled' |
| ' table stats: rows=6001215 size=718.94MB' |
| ' column stats: all' |
| ' mem-estimate=88.00MB mem-reservation=0B' |
| ' tuple-ids=0 row-size=263B cardinality=6001215' |
| '' |
| 'F01:PLAN FRAGMENT [RANDOM] hosts=2 instances=2' |
| 'Per-Host Resources: mem-estimate=88.00MB mem-reservation=0B' |
| ' DATASTREAM SINK [FRAGMENT=F00, EXCHANGE=03, BROADCAST]' |
| ' | mem-estimate=0B mem-reservation=0B' |
| ' 01:SCAN HDFS [tpch.orders, RANDOM]' |
| row_regex:.*partitions=1/1 files=1 size=.* |
| ' stats-rows=1500000 extrapolated-rows=disabled' |
| ' table stats: rows=1500000 size=162.56MB' |
| ' column stats: all' |
| ' mem-estimate=88.00MB mem-reservation=0B' |
| ' tuple-ids=1 row-size=191B cardinality=1500000' |
| ==== |
| ---- QUERY |
| # Tests the warning about missing table stats in the explain header. |
| explain select count(t1.int_col), avg(t2.float_col), sum(t3.bigint_col) |
| from functional_avro.alltypes t1 |
| inner join functional_parquet.alltypessmall t2 on (t1.id = t2.id) |
| left outer join functional_avro.alltypes t3 on (t2.id = t3.id) |
| where t1.month = 1 and t2.year = 2009 and t3.bool_col = false |
| ---- RESULTS: VERIFY_IS_SUBSET |
| 'WARNING: The following tables are missing relevant table and/or column statistics.' |
| 'functional_avro.alltypes, functional_parquet.alltypessmall' |
| ==== |
