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161cbe30ff
Revert "IMPALA-6585: increase test_low_mem_limit_q21 limit" This reverts commit25bcb258df. Revert "IMPALA-6588: don't add empty list of ranges in text scan" This reverts commitd57fbec6f6. Revert "IMPALA-4835: Part 3: switch I/O buffers to buffer pool" This reverts commit24b4ed0b29. Revert "IMPALA-4835: Part 2: Allocate scan range buffers upfront" This reverts commit5699b59d0c. Revert "IMPALA-4835: Part 1: simplify I/O mgr mem mgmt and cancellation" This reverts commit65680dc421. Change-Id: Ie5ca451cd96602886b0a8ecaa846957df0269cbb Reviewed-on: http://gerrit.cloudera.org:8080/9480 Reviewed-by: Dan Hecht <dhecht@cloudera.com> Tested-by: Impala Public Jenkins
196 lines
7.3 KiB
Plaintext
196 lines
7.3 KiB
Plaintext
====
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---- QUERY
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# This test relies on a deterministic row order so we use "sort by (id)".
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create table alltypes sort by (id) like functional_parquet.alltypes;
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alter table alltypes set tblproperties("impala.enable.stats.extrapolation"="true");
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insert into alltypes partition(year, month)
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select * from functional_parquet.alltypes where year = 2009;
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====
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---- QUERY
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# No stats are available.
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explain select id from alltypes;
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---- RESULTS: VERIFY_IS_SUBSET
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' stored statistics:'
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' table: rows=unavailable size=unavailable'
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' partitions: 0/12 rows=unavailable'
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' columns: unavailable'
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' extrapolated-rows=unavailable'
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' mem-estimate=16.00MB mem-reservation=0B'
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' tuple-ids=0 row-size=4B cardinality=unavailable'
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---- TYPES
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STRING
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====
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---- QUERY
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compute stats alltypes
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---- RESULTS
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'Updated 1 partition(s) and 11 column(s).'
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---- TYPES
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STRING
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====
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---- QUERY
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# Only the table-level row count is stored. The partition row counts are extrapolated.
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show table stats alltypes
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---- LABELS
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YEAR, MONTH, #ROWS, EXTRAP #ROWS, #FILES, SIZE, BYTES CACHED, CACHE REPLICATION, FORMAT, INCREMENTAL STATS, LOCATION
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---- RESULTS
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'2009','1',-1,308,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=1'
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'2009','2',-1,288,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=2'
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'2009','3',-1,308,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=3'
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'2009','4',-1,302,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=4'
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'2009','5',-1,308,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=5'
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'2009','6',-1,302,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=6'
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'2009','7',-1,308,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=7'
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'2009','8',-1,308,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=8'
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'2009','9',-1,302,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=9'
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'2009','10',-1,308,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=10'
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'2009','11',-1,302,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=11'
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'2009','12',-1,308,1,regex:.*B,'NOT CACHED','NOT CACHED','PARQUET','false','$NAMENODE/test-warehouse/$DATABASE.db/alltypes/year=2009/month=12'
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'Total','',3650,3650,12,regex:.*B,'0B','','','',''
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---- TYPES
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STRING,STRING,BIGINT,BIGINT,BIGINT,STRING,STRING,STRING,STRING,STRING,STRING
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====
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---- QUERY
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# Stats are available now.
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explain select id from alltypes;
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---- RESULTS: VERIFY_IS_EQUAL
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'Max Per-Host Resource Reservation: Memory=0B'
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'Per-Host Resource Estimates: Memory=16.00MB'
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'Codegen disabled by planner'
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''
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'F00:PLAN FRAGMENT [UNPARTITIONED] hosts=1 instances=1'
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'| Per-Host Resources: mem-estimate=16.00MB mem-reservation=0B'
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'PLAN-ROOT SINK'
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'| mem-estimate=0B mem-reservation=0B'
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'|'
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'00:SCAN HDFS [$DATABASE.alltypes]'
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row_regex:.*partitions=12/12 files=12 size=.*
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' stored statistics:'
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row_regex:.*table: rows=3650 size=.*
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' partitions: 0/12 rows=unavailable'
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' columns: all'
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' extrapolated-rows=3650'
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' mem-estimate=16.00MB mem-reservation=0B'
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' tuple-ids=0 row-size=4B cardinality=3650'
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---- TYPES
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STRING
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====
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---- QUERY
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# Select a subset of partitions.
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explain select id from alltypes where month in (1, 2, 3);
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---- RESULTS: VERIFY_IS_EQUAL
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'Max Per-Host Resource Reservation: Memory=0B'
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'Per-Host Resource Estimates: Memory=16.00MB'
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'Codegen disabled by planner'
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''
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'F00:PLAN FRAGMENT [UNPARTITIONED] hosts=1 instances=1'
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'| Per-Host Resources: mem-estimate=16.00MB mem-reservation=0B'
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'PLAN-ROOT SINK'
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'| mem-estimate=0B mem-reservation=0B'
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'|'
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'00:SCAN HDFS [$DATABASE.alltypes]'
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row_regex:.*partitions=3/12 files=3 size=.*
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' stored statistics:'
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row_regex:.*table: rows=3650 size=.*
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' partitions: 0/3 rows=unavailable'
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' columns: all'
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' extrapolated-rows=904'
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' mem-estimate=16.00MB mem-reservation=0B'
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' tuple-ids=0 row-size=4B cardinality=904'
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---- TYPES
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STRING
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====
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---- QUERY
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# Double the data in existing partitions.
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insert into alltypes partition(year, month)
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select * from functional_parquet.alltypes where year = 2009;
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explain select id from alltypes;
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---- RESULTS: VERIFY_IS_EQUAL
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'Max Per-Host Resource Reservation: Memory=0B'
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'Per-Host Resource Estimates: Memory=16.00MB'
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''
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'F00:PLAN FRAGMENT [UNPARTITIONED] hosts=1 instances=1'
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'| Per-Host Resources: mem-estimate=16.00MB mem-reservation=0B'
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'PLAN-ROOT SINK'
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'| mem-estimate=0B mem-reservation=0B'
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'|'
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'00:SCAN HDFS [$DATABASE.alltypes]'
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row_regex:.*partitions=12/12 files=24 size=.*
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' stored statistics:'
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row_regex:.*table: rows=3650 size=.*
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' partitions: 0/12 rows=unavailable'
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' columns: all'
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' extrapolated-rows=7300'
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' mem-estimate=16.00MB mem-reservation=0B'
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' tuple-ids=0 row-size=4B cardinality=7300'
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---- TYPES
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STRING
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====
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---- QUERY
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# Create new partitions and extrapolate their row count.
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insert into alltypes partition(year, month)
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select * from functional_parquet.alltypes where year = 2010;
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explain select id from alltypes where year = 2010;
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---- RESULTS: VERIFY_IS_EQUAL
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'Max Per-Host Resource Reservation: Memory=0B'
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'Per-Host Resource Estimates: Memory=16.00MB'
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'Codegen disabled by planner'
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''
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'F00:PLAN FRAGMENT [UNPARTITIONED] hosts=1 instances=1'
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'| Per-Host Resources: mem-estimate=16.00MB mem-reservation=0B'
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'PLAN-ROOT SINK'
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'| mem-estimate=0B mem-reservation=0B'
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'|'
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'00:SCAN HDFS [$DATABASE.alltypes]'
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row_regex:.*partitions=12/24 files=12 size=.*
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' stored statistics:'
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row_regex:.*table: rows=3650 size=.*
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' partitions: 0/12 rows=unavailable'
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' columns: all'
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' extrapolated-rows=3651'
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' mem-estimate=16.00MB mem-reservation=0B'
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' tuple-ids=0 row-size=4B cardinality=3651'
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---- TYPES
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STRING
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====
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---- QUERY
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# Compute stats and run the same query again.
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compute stats alltypes;
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explain select id from alltypes where year = 2010;
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---- RESULTS: VERIFY_IS_EQUAL
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'Max Per-Host Resource Reservation: Memory=0B'
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'Per-Host Resource Estimates: Memory=16.00MB'
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'Codegen disabled by planner'
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''
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'F00:PLAN FRAGMENT [UNPARTITIONED] hosts=1 instances=1'
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'| Per-Host Resources: mem-estimate=16.00MB mem-reservation=0B'
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'PLAN-ROOT SINK'
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'| mem-estimate=0B mem-reservation=0B'
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'|'
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'00:SCAN HDFS [$DATABASE.alltypes]'
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row_regex:.*partitions=12/24 files=12 size=.*
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' stored statistics:'
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row_regex:.*table: rows=10950 size=.*
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' partitions: 0/12 rows=unavailable'
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' columns: all'
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' extrapolated-rows=3651'
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' mem-estimate=16.00MB mem-reservation=0B'
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' tuple-ids=0 row-size=4B cardinality=3651'
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---- TYPES
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STRING
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====
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---- QUERY
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# Test that dropping stats resets everything.
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drop stats alltypes;
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explain select id from alltypes;
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---- RESULTS: VERIFY_IS_SUBSET
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' stored statistics:'
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' table: rows=unavailable size=unavailable'
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' partitions: 0/24 rows=unavailable'
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' columns: unavailable'
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' extrapolated-rows=unavailable'
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' mem-estimate=16.00MB mem-reservation=0B'
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' tuple-ids=0 row-size=4B cardinality=unavailable'
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---- TYPES
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STRING
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====
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