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The control flow was broken if the join operator hit the end of the expression values cache before the end of the probe batch, immediately after processing a row for a spilled partition. In NextProbeRow(), the problematic code path was: * The last row in the expression values cache was for a spilled partition, so skip_row=true and it falls out of the loop with 'current_probe_row_' pointing to that row. * probe_batch_iterator->AtEnd() is false, because the expression value cache is smaller than the probe batch, so 'current_probe_row_' is not nulled out. Thus we end up in a state where 'current_probe_row_' is set, but 'hash_table_iterator_' is unset. In the case of a left anti join, this was interpreted by ProcessProbeRowLeftSemiJoins() as meaning that there was no hash table match for 'current_probe_row_', and it therefore returned the row. This bug could only occur under specific circumstances: * The join key takes up > 256 bytes in the expression values cache (assuming the default batch size of 1024). * The join spilled. * The join operator returns rows that were unmatched in the right input, i.e. LEFT OUTER JOIN, LEFT ANTI JOIN, FULL OUTER JOIN. The core of the fix is to null out 'current_probe_row_' when falling out the bottom of the loop in NextProbeRow(). Related DCHECKS were fixed and some control flow was slightly simplified. Testing: Added a test query on TPC-H that reproduces the problem reliably. Ran exhaustive tests. Change-Id: I9d7e5871c35a90e8cf24b8dded04775ee1eae9d8 Reviewed-on: http://gerrit.cloudera.org:8080/15904 Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
369 lines
16 KiB
Plaintext
369 lines
16 KiB
Plaintext
====
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---- QUERY
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set buffer_pool_limit=215m;
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select count(l1.l_tax)
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from
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lineitem l1,
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lineitem l2,
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lineitem l3
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where
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l1.l_tax < 0.01 and
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l2.l_tax < 0.04 and
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l1.l_orderkey = l2.l_orderkey and
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l1.l_orderkey = l3.l_orderkey and
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l1.l_comment = l3.l_comment and
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l1.l_shipdate = l3.l_shipdate
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---- RESULTS
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1846743
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---- TYPES
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BIGINT
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---- RUNTIME_PROFILE
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# Verify that at least one of the joins was spilled.
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row_regex: .*SpilledPartitions: .* \([1-9][0-9]*\)
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====
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---- QUERY
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set buffer_pool_limit=50m;
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select max(t1.total_count), max(t1.l_shipinstruct), max(t1.l_comment) from
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(select l_shipinstruct, l_comment, count(*) over () total_count from lineitem) t1
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---- RESULTS
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6001215,'TAKE BACK RETURN','zzle? slyly final platelets sleep quickly. '
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---- TYPES
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BIGINT, STRING, STRING
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---- RUNTIME_PROFILE
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# Verify that the analytic spilled
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row_regex: .*PeakUnpinnedBytes: [1-9][0-9]*.*
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====
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---- QUERY
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# Run this query with very low memory, but enough not to spill.
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set buffer_pool_limit=20m;
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select a.int_col, count(*)
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from functional.alltypessmall a, functional.alltypessmall b, functional.alltypessmall c
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where a.id = b.id and b.id = c.id group by a.int_col
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---- RESULTS
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0,12
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1,12
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2,12
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3,12
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4,12
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5,8
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6,8
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7,8
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8,8
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9,8
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---- TYPES
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INT, BIGINT
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---- RUNTIME_PROFILE
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# This query is not meant to spill.
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row_regex: .*SpilledPartitions: 0 .*
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====
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---- QUERY: TPCH-Q21
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# Adding TPCH-Q21 in the spilling test to check for IMPALA-1471 (spilling left anti
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# and left outer joins were returning wrong results).
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# Q21 - Suppliers Who Kept Orders Waiting Query
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set buffer_pool_limit=100m;
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select
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s_name,
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count(*) as numwait
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from
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supplier,
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lineitem l1 join [BROADCAST]
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orders,
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nation
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where
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s_suppkey = l1.l_suppkey
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and o_orderkey = l1.l_orderkey
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and o_orderstatus = 'F'
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and l1.l_receiptdate > l1.l_commitdate
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and exists (
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select
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*
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from
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lineitem l2
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where
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l2.l_orderkey = l1.l_orderkey
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and l2.l_suppkey <> l1.l_suppkey
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)
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and not exists (
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select
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*
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from
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lineitem l3
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where
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l3.l_orderkey = l1.l_orderkey
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and l3.l_suppkey <> l1.l_suppkey
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and l3.l_receiptdate > l3.l_commitdate
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)
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and s_nationkey = n_nationkey
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and n_name = 'SAUDI ARABIA'
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group by
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s_name
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order by
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numwait desc,
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s_name
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limit 100
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---- RESULTS
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'Supplier#000002829',20
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'Supplier#000005808',18
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'Supplier#000000262',17
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'Supplier#000000496',17
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'Supplier#000002160',17
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'Supplier#000002301',17
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'Supplier#000002540',17
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'Supplier#000003063',17
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'Supplier#000005178',17
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'Supplier#000008331',17
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'Supplier#000002005',16
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'Supplier#000002095',16
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'Supplier#000005799',16
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'Supplier#000005842',16
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'Supplier#000006450',16
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'Supplier#000006939',16
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'Supplier#000009200',16
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'Supplier#000009727',16
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'Supplier#000000486',15
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'Supplier#000000565',15
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'Supplier#000001046',15
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'Supplier#000001047',15
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'Supplier#000001161',15
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'Supplier#000001336',15
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'Supplier#000001435',15
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'Supplier#000003075',15
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'Supplier#000003335',15
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'Supplier#000005649',15
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'Supplier#000006027',15
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'Supplier#000006795',15
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'Supplier#000006800',15
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'Supplier#000006824',15
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'Supplier#000007131',15
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'Supplier#000007382',15
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'Supplier#000008913',15
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'Supplier#000009787',15
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'Supplier#000000633',14
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'Supplier#000001960',14
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'Supplier#000002323',14
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'Supplier#000002490',14
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'Supplier#000002993',14
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'Supplier#000003101',14
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'Supplier#000004489',14
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'Supplier#000005435',14
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'Supplier#000005583',14
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'Supplier#000005774',14
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'Supplier#000007579',14
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'Supplier#000008180',14
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'Supplier#000008695',14
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'Supplier#000009224',14
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'Supplier#000000357',13
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'Supplier#000000436',13
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'Supplier#000000610',13
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'Supplier#000000788',13
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'Supplier#000000889',13
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'Supplier#000001062',13
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'Supplier#000001498',13
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'Supplier#000002056',13
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'Supplier#000002312',13
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'Supplier#000002344',13
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'Supplier#000002596',13
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'Supplier#000002615',13
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'Supplier#000002978',13
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'Supplier#000003048',13
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'Supplier#000003234',13
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'Supplier#000003727',13
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'Supplier#000003806',13
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'Supplier#000004472',13
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'Supplier#000005236',13
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'Supplier#000005906',13
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'Supplier#000006241',13
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'Supplier#000006326',13
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'Supplier#000006384',13
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'Supplier#000006394',13
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'Supplier#000006624',13
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'Supplier#000006629',13
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'Supplier#000006682',13
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'Supplier#000006737',13
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'Supplier#000006825',13
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'Supplier#000007021',13
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'Supplier#000007417',13
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'Supplier#000007497',13
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'Supplier#000007602',13
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'Supplier#000008134',13
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'Supplier#000008234',13
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'Supplier#000009435',13
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'Supplier#000009436',13
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'Supplier#000009564',13
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'Supplier#000009896',13
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'Supplier#000000379',12
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'Supplier#000000673',12
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'Supplier#000000762',12
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'Supplier#000000811',12
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'Supplier#000000821',12
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'Supplier#000001337',12
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'Supplier#000001916',12
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'Supplier#000001925',12
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'Supplier#000002039',12
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'Supplier#000002357',12
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'Supplier#000002483',12
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---- TYPES
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string, bigint
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---- RUNTIME_PROFILE
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# Verify that at least one of the joins was spilled.
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row_regex: .*SpilledPartitions: .* \([1-9][0-9]*\)
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====
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---- QUERY
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# IMPALA-1346/IMPALA-1546: fix sorter memory management so that it can complete
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# successfully when in same pipeline as a spilling join.
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set buffer_pool_limit=170m;
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set disable_outermost_topn=1;
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select * from lineitem
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inner join orders on l_orderkey = o_orderkey
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order by l_linenumber, l_suppkey, l_partkey, l_orderkey
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limit 20
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---- RESULTS
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4567296,2500,1,1,48.00,67320.00,0.06,0.05,'N','O','1997-05-15','1997-05-19','1997-05-27','DELIVER IN PERSON','REG AIR','ccounts cajole quickly ',4567296,100420,'O',113399.69,'1997-02-21','1-URGENT','Clerk#000000779',0,'ously ironic instructions. pa'
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5427587,2500,1,1,40.00,56100.00,0.05,0.07,'N','O','1997-04-01','1997-05-22','1997-04-29','TAKE BACK RETURN','RAIL','oxes wake even theodolites: bold requests',5427587,110356,'O',182983.43,'1997-03-10','1-URGENT','Clerk#000000279',0,'osits wake along the ca'
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3834597,7500,1,1,3.00,4222.50,0.03,0.01,'N','O','1998-07-03','1998-05-12','1998-07-04','COLLECT COD','AIR','sly final instructions boost about',3834597,29839,'O',147632.36,'1998-03-23','1-URGENT','Clerk#000000284',0,'le carefully blithel'
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4888512,10000,1,1,14.00,12740.00,0.03,0.01,'A','F','1993-02-07','1992-12-29','1993-02-19','NONE','SHIP','al braids. unusual, silent sentiments c',4888512,93742,'F',12481.37,'1992-11-21','4-NOT SPECIFIED','Clerk#000000591',0,' requests hinder blithely. closely ironic theodolites cajole among the car'
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693345,12497,1,1,14.00,19732.86,0.03,0.07,'N','O','1998-10-12','1998-08-18','1998-10-23','NONE','FOB','. blithely',693345,49472,'O',111825.01,'1998-07-06','4-NOT SPECIFIED','Clerk#000000132',0,'es wake regularly furiously pending orbits. quickly even requests according t'
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710784,12497,1,1,11.00,15504.39,0.02,0.07,'R','F','1992-08-21','1992-08-11','1992-09-05','TAKE BACK RETURN','SHIP','haggle furiously special accounts? final th',710784,82009,'F',91959.19,'1992-06-20','1-URGENT','Clerk#000000001',0,'rve quickly after the express theodolites. furiou'
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1240672,12497,1,1,41.00,57789.09,0.08,0.05,'N','O','1998-09-18','1998-08-04','1998-09-24','NONE','RAIL','o the furiously unusual requests sleep alo',1240672,59153,'O',55824.25,'1998-05-28','1-URGENT','Clerk#000000657',0,'ular pinto beans are above the furiously regular accounts: furiously even foxe'
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2024230,12497,1,1,16.00,22551.84,0.05,0.00,'A','F','1992-04-10','1992-04-14','1992-04-13','NONE','RAIL','pecial theodolites wake slyly. care',2024230,145955,'F',186715.47,'1992-02-22','5-LOW','Clerk#000000904',0,'uses. accounts are furiously. fluffily regular ideas haggle b'
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3039715,12497,1,1,14.00,19732.86,0.01,0.02,'R','F','1993-03-24','1993-02-12','1993-03-28','TAKE BACK RETURN','AIR','onic requests. furiously spe',3039715,27274,'F',80817.94,'1992-11-23','2-HIGH','Clerk#000000766',0,'lently regular packages believe slyly around the regular, regula'
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3105635,12497,1,1,16.00,22551.84,0.03,0.07,'R','F','1993-07-30','1993-08-28','1993-08-19','TAKE BACK RETURN','SHIP','nal, ironic theodolites solve carefully',3105635,23665,'F',256886.23,'1993-06-22','5-LOW','Clerk#000000029',0,'otes-- blithely special accounts cajole slyly furiously silent dugout'
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3764485,12497,1,1,22.00,31008.78,0.05,0.08,'R','F','1993-02-07','1993-03-18','1993-02-10','COLLECT COD','AIR',' pinto beans nag',3764485,19375,'F',107449.65,'1992-12-26','5-LOW','Clerk#000000364',0,' carefully regular foxes bo'
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4767393,12497,1,1,3.00,4228.47,0.09,0.06,'A','F','1992-09-15','1992-10-02','1992-09-17','DELIVER IN PERSON','FOB',' asymptotes. blithely',4767393,22522,'F',163054.32,'1992-08-10','2-HIGH','Clerk#000000174',0,'unusual foxes after the furiously regular multipliers detect ca'
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1955428,14998,1,1,47.00,89910.53,0.07,0.02,'R','F','1993-01-25','1993-04-02','1993-01-31','DELIVER IN PERSON','MAIL','thely regular frays',1955428,41801,'F',134123.84,'1993-01-08','4-NOT SPECIFIED','Clerk#000000422',0,'ld deposits are slyly. quickly bold ideas bo'
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4197636,14998,1,1,6.00,11477.94,0.03,0.01,'A','F','1993-11-28','1993-11-27','1993-12-03','TAKE BACK RETURN','SHIP','ly. slyly final ex',4197636,77494,'F',283248.52,'1993-10-18','1-URGENT','Clerk#000000087',0,'final asymptotes? packages doze against the ironic packages. ironic, bold dec'
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4899558,17499,1,1,12.00,16997.88,0.00,0.08,'A','F','1992-08-06','1992-08-09','1992-08-14','COLLECT COD','RAIL','ourts would sleep fluffily express accou',4899558,111973,'F',300951.70,'1992-05-21','1-URGENT','Clerk#000000826',0,'eodolites wake ironic sentiments. r'
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4725760,20000,1,1,48.00,44160.00,0.02,0.05,'R','F','1992-03-06','1992-03-04','1992-03-20','NONE','SHIP','liers. slyly regular request',4725760,45176,'F',202199.68,'1992-01-31','4-NOT SPECIFIED','Clerk#000000853',0,'riously regular accounts. ironic, bold requests was slyly; slyly regula'
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49444,22494,1,1,22.00,31162.78,0.06,0.08,'N','O','1997-03-03','1997-04-19','1997-03-25','TAKE BACK RETURN','MAIL','l requests among the blithely fin',49444,11725,'O',273794.80,'1997-01-23','2-HIGH','Clerk#000000814',0,'s. quickly bold packages integrate. furio'
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396839,24996,1,1,9.00,17288.91,0.03,0.07,'N','O','1996-06-19','1996-04-27','1996-07-13','COLLECT COD','MAIL',' accounts ',396839,63389,'O',193790.34,'1996-03-11','5-LOW','Clerk#000000436',0,'eans. instructions are quickly--'
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1109894,24996,1,1,22.00,42261.78,0.01,0.05,'A','F','1995-01-10','1995-03-01','1995-01-21','TAKE BACK RETURN','RAIL','nusual requests wake. qu',1109894,35489,'F',78070.57,'1994-12-23','2-HIGH','Clerk#000000524',0,' bold deposits engage fluffily among the s'
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5825859,24996,1,1,5.00,9604.95,0.02,0.00,'A','F','1995-05-05','1995-03-17','1995-05-21','TAKE BACK RETURN','MAIL','y special a',5825859,13285,'F',90407.81,'1995-01-15','3-MEDIUM','Clerk#000000818',0,'ajole. quickly ironic theodolites '
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---- TYPES
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BIGINT,BIGINT,BIGINT,INT,DECIMAL,DECIMAL,DECIMAL,DECIMAL,STRING,STRING,STRING,STRING,STRING,STRING,STRING,STRING,BIGINT,BIGINT,STRING,DECIMAL,STRING,STRING,STRING,INT,STRING
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---- RUNTIME_PROFILE
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# Verify that the sort and join actually spilled
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row_regex: .*SpilledPartitions: .* \([1-9][0-9]*\)
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row_regex: .*TotalMergesPerformed: .* \([1-9][0-9]*\)
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====
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---- QUERY
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# IMPALA-5173: spilling hash join feeding into right side of nested loop join.
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# Equivalent to:
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# select *
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# from lineitem
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# where l1.l_quantity = 31.0 and l1.l_tax = 0.03 and l1.l_orderkey <= 100000
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# order by l_orderkey, l_partkey, l_suppkey, l_linenumber
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# limit 5
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set buffer_pool_limit=177m;
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set num_nodes=1;
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select straight_join l.*
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from
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(select *
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from tpch_parquet.orders limit 1) o,
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(select l2.*
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from tpch_parquet.lineitem l1
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inner join tpch_parquet.lineitem l2 on l1.l_orderkey = l2.l_orderkey
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and l1.l_partkey = l2.l_partkey
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and l1.l_suppkey = l2.l_suppkey and l1.l_linenumber = l2.l_linenumber
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where
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# Include a selective post-join predicate so that the RHS of the nested loop join
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# doesn't consume too much memory.
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(l1.l_quantity != l2.l_quantity or l1.l_quantity = 31.0 and l1.l_tax = 0.03)
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# Reduce the data size to get the test to execute quicker
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and l1.l_orderkey <= 100000) l
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order by l_orderkey, l_partkey, l_suppkey, l_linenumber
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limit 5;
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---- TYPES
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bigint,bigint,bigint,int,decimal,decimal,decimal,decimal,string,string,string,string,string,string,string,string
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---- RESULTS
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288,50641,8157,1,31.00,49340.84,0.00,0.03,'N','O','1997-03-17','1997-04-28','1997-04-06','TAKE BACK RETURN','AIR','instructions wa'
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418,18552,1054,1,31.00,45587.05,0.00,0.03,'N','F','1995-06-05','1995-06-18','1995-06-26','COLLECT COD','FOB','final theodolites. fluffil'
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482,61141,6154,3,31.00,34166.34,0.04,0.03,'N','O','1996-06-01','1996-05-06','1996-06-17','NONE','MAIL',' blithe pin'
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1382,156162,6163,5,31.00,37762.96,0.07,0.03,'R','F','1993-10-26','1993-10-15','1993-11-09','TAKE BACK RETURN','FOB','hely regular dependencies. f'
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1509,186349,3904,6,31.00,44495.54,0.04,0.03,'A','F','1993-07-14','1993-08-21','1993-08-06','COLLECT COD','SHIP','ic deposits cajole carefully. quickly bold '
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====
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---- QUERY
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# Test spilling aggregation when grouping by nondeterministic expression
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set buffer_pool_limit=79m;
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set num_nodes=1;
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select l_orderkey, l_partkey, l_suppkey, l_linenumber, l_comment
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from tpch_parquet.lineitem
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group by 1, 2, 3, 4, 5, random()
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limit 5
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---- RUNTIME_PROFILE
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row_regex: .*Query State: FINISHED.*
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row_regex: .*Query Status: OK.*
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row_regex: .*SpilledPartitions: .* \([1-9][0-9]*\)
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====
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---- QUERY
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# Test spilling join with many duplicates in join key. We don't expect this to succeed
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# with a memory constraint: see IMPALA-4857. Limit size of probe so that query doesn't
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# bog down executing an exploding join.
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# The additional "order by" and "limit" clauses make sure that a successful
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# query does not too much data to the client.
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set buffer_pool_limit=167m;
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select straight_join *
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from lineitem l1 join lineitem l2 on l1.l_linenumber = l2.l_linenumber
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where l1.l_orderkey < 100000
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order by l1.l_orderkey desc, l1.l_linenumber desc limit 10
|
|
---- CATCH
|
|
Repartitioning did not reduce the size of a spilled partition
|
|
====
|
|
---- QUERY
|
|
# IMPALA-9725: incorrect results for spilling joins with very wide join keys.
|
|
# This test is crafted to always return 0 rows, but with the previous bug
|
|
# would sometimes return rows while spilling. The query needs to have a join
|
|
# key that is more than 256 bytes wide to trigger the bug.
|
|
set buffer_pool_limit=110m;
|
|
set runtime_filter_mode=0;
|
|
SELECT straight_join o_orderkey
|
|
FROM (
|
|
SELECT *
|
|
FROM orders
|
|
JOIN customer ON o_custkey = c_custkey
|
|
JOIN nation ON c_nationkey = n_nationkey
|
|
JOIN region ON n_regionkey = r_regionkey
|
|
WHERE o_orderkey < 500000) o1
|
|
LEFT ANTI JOIN /*+broadcast*/ (
|
|
SELECT *
|
|
FROM orders
|
|
JOIN customer ON o_custkey = c_custkey
|
|
JOIN nation ON c_nationkey = n_nationkey
|
|
JOIN region ON n_regionkey = r_regionkey
|
|
WHERE o_orderkey < 500000) o2 ON o1.o_orderkey = o2.o_orderkey
|
|
AND o1.o_custkey = o2.o_custkey
|
|
AND o1.o_orderstatus = o2.o_orderstatus
|
|
AND o1.o_totalprice = o2.o_totalprice
|
|
AND o1.o_orderdate = o2.o_orderdate
|
|
AND o1.o_orderpriority = o2.o_orderpriority
|
|
AND o1.o_clerk = o2.o_clerk
|
|
AND o1.o_shippriority = o2.o_shippriority
|
|
AND o1.o_comment = o2.o_comment
|
|
AND o1.c_custkey = o2.c_custkey
|
|
AND o1.c_name = o2.c_name
|
|
AND o1.c_address = o2.c_address
|
|
AND o1.c_nationkey = o2.c_nationkey
|
|
AND o1.c_phone = o2.c_phone
|
|
AND o1.c_acctbal = o2.c_acctbal
|
|
AND o1.c_mktsegment = o2.c_mktsegment
|
|
AND o1.n_nationkey = o2.n_nationkey
|
|
AND o1.n_name = o2.n_name
|
|
AND o1.n_regionkey = o2.n_regionkey
|
|
AND o1.n_comment = o2.n_comment
|
|
AND o1.r_name = o2.r_name
|
|
AND o1.r_comment = o2.r_comment
|
|
AND fnv_hash(o1.n_name) = fnv_hash(o2.n_name)
|
|
AND fnv_hash(o1.r_name) = fnv_hash(o2.r_name)
|
|
AND fnv_hash(o1.o_orderstatus) = fnv_hash(o2.o_orderstatus)
|
|
AND fnv_hash(o1.o_shippriority) = fnv_hash(o2.o_shippriority)
|
|
AND fnv_hash(o1.o_orderdate) = fnv_hash(o2.o_orderdate)
|
|
AND fnv_hash(o1.o_orderpriority) = fnv_hash(o2.o_orderpriority)
|
|
AND fnv_hash(o1.o_clerk) = fnv_hash(o2.o_clerk)
|
|
ORDER BY o_orderkey
|
|
---- RESULTS
|
|
---- TYPES
|
|
BIGINT
|
|
---- RUNTIME_PROFILE
|
|
# Verify that at least one of the joins was spilled.
|
|
row_regex: .*SpilledPartitions: .* \([1-9][0-9]*\)
|
|
====
|