pitrou opened a new issue, #36482: URL: https://github.com/apache/arrow/issues/36482
### Describe the bug, including details regarding any error messages, version, and platform. We routinely see this kind of failures on CI: https://github.com/apache/arrow/actions/runs/5464016379/jobs/9945469106#step:7:3365 ``` [ RUN ] AsofJoinNodeTest/AsofJoinBasicTest.TestBasic7Forward/2 /arrow/cpp/src/arrow/testing/gtest_util.cc:505: Failure Failed Unequal at absolute position 3 @@ -1, +1 @@ -11 +null Expected: [ 10, null, 12 ] Actual: [ 10, 11, 12 ] Google Test trace: /arrow/cpp/src/arrow/acero/asof_join_node_test.cc:630: Right-1 type: timestamp[ms, tz=UTC] /arrow/cpp/src/arrow/acero/asof_join_node_test.cc:628: Right-0 type: double /arrow/cpp/src/arrow/acero/asof_join_node_test.cc:626: Left type: uint16 /arrow/cpp/src/arrow/acero/asof_join_node_test.cc:624: Key type: date32[day] /arrow/cpp/src/arrow/acero/asof_join_node_test.cc:622: Time type: timestamp[us, tz=UTC] /arrow/cpp/src/arrow/acero/asof_join_node_test.cc:620: Iteration: 3 /arrow/cpp/src/arrow/acero/asof_join_node_test.cc:611: Types seed: 1688560093425811692 /arrow/cpp/src/arrow/acero/asof_join_node_test.cc:998: AsofJoinBasicTest_TestBasic7_MutateByKey /arrow/cpp/src/arrow/acero/asof_join_node_test.cc:997: AsofJoinBasicTest_TestBasic7Forward_MutateByKey AsofJoinTest debug: AsofjoinNode(0xffffc2670910): received batch from input 2: time: [ 1970-01-01 00:00:00.000000, 1970-01-01 00:00:00.001500, 1970-01-01 00:00:00.002500 ] key2: [ 1970-01-01, 1970-01-01, 1970-01-01 ] key: [ 1970-01-02, 1970-01-02, 1970-01-02 ] r1_v0: [ 1970-01-01 00:00:00.100, 1970-01-01 00:00:00.101, 1970-01-01 00:00:00.102 ] AsofjoinNode(0xffffc2670910): received batch from input 1: time: [ 1970-01-01 00:00:00.000000, 1970-01-01 00:00:00.001500, 1970-01-01 00:00:00.002500 ] key2: [ 1970-01-01, 1970-01-01, 1970-01-01 ] key: [ 1970-01-02, 1970-01-02, 1970-01-02 ] r0_v0: [ 10, 11, 12 ] AsofjoinNode(0xffffc2670910): received batch from input 0: time: [ 1970-01-01 00:00:00.000000 ] key2: [ 1970-01-01 ] key: [ 1970-01-02 ] l_v0: [ 1 ] AsofjoinNode(0xffffb33fb440): Advancing input 1 AsofjoinNode(0xffffb33fb240): key hasher 1 got hashes [10621589963589458110, 10621589963589458110, 10621589963589458110] AsofjoinNode(0xffffb33fb340): memo 1 store: for_time=0 row=0 time=0 key=10621589963589458110 AsofjoinNode(0xffffb33fb440): Advancing input 1 hit distant time=1500 at=0 AsofjoinNode(0xffffb33fb360): memo 1 remove: ts=0 AsofjoinNode(0xffffb33fb440): Advancing input 1 updated=0 AsofjoinNode(0xffffb33fb440): Advancing input 2 AsofjoinNode(0xffffb33fb240): key hasher 2 got hashes [10621589963589458110, 10621589963589458110, 10621589963589458110] AsofjoinNode(0xffffb33fb340): memo 2 store: for_time=0 row=0 time=0 key=10621589963589458110 AsofjoinNode(0xffffb33fb440): Advancing input 2 hit distant time=1500 at=0 AsofjoinNode(0xffffb33fb360): memo 2 remove: ts=0 AsofjoinNode(0xffffb33fb440): Advancing input 2 updated=0 AsofjoinNode(0xffffb33fb240): key hasher 0 got hashes [10621589963589458110] AsofjoinNode(0xffffb33fb440): Emplace: key=10621589963589458110 lhs_latest_row=0 lhs_latest_time=0 AsofjoinNode(0xffffb33fb440): i=1 has_entry=1 time=0 row=0 accepted=1 AsofjoinNode(0xffffb33fb440): i=2 has_entry=1 time=0 row=0 accepted=1 AsofjoinNode(0xffffb33fb6a0): produce batch 0: time: [ 1970-01-01 00:00:00.000000 ] key2: [ 1970-01-01 ] key: [ 1970-01-02 ] l_v0: [ 1 ] r0_v0: [ 10 ] r1_v0: [ 1970-01-01 00:00:00.100 ] AsofjoinNode(0xffffc2670910): received batch from input 0: time: [ 1970-01-01 00:00:00.001000 ] key2: [ 1970-01-01 ] key: [ 1970-01-03 ] l_v0: [ 2 ] AsofjoinNode(0xffffb33fb440): Advancing input 1 AsofjoinNode(0xffffb33fb340): memo 1 store: for_time=1000 row=1 time=1500 key=10621589963589458110 AsofjoinNode(0xffffb33fb440): Advancing input 1 hit distant time=2500 at=1000 AsofjoinNode(0xffffb33fb340): memo 1 store: for_time=1000 row=2 time=2500 key=10621589963589458110 AsofjoinNode(0xffffb33fb360): memo 1 remove: ts=1000 AsofjoinNode(0xffffb33fb440): Advancing input 1 updated=1 AsofjoinNode(0xffffb33fb440): Advancing input 2 AsofjoinNode(0xffffb33fb340): memo 2 store: for_time=1000 row=1 time=1500 key=10621589963589458110 AsofjoinNode(0xffffb33fb440): Advancing input 2 hit distant time=2500 at=1000 AsofjoinNode(0xffffb33fb340): memo 2 store: for_time=1000 row=2 time=2500 key=10621589963589458110 AsofjoinNode(0xffffb33fb360): memo 2 remove: ts=1000 AsofjoinNode(0xffffb33fb440): Advancing input 2 updated=1 AsofjoinNode(0xffffb33fb440): Emplace: key=10621589963589458110 lhs_latest_row=0 lhs_latest_time=1000 AsofjoinNode(0xffffb33fb440): i=1 has_entry=1 time=1500 row=1 accepted=1 AsofjoinNode(0xffffb33fb440): i=2 has_entry=1 time=1500 row=1 accepted=1 AsofjoinNode(0xffffb33fb6a0): produce batch 1: time: [ 1970-01-01 00:00:00.001000 ] key2: [ 1970-01-01 ] key: [ 1970-01-03 ] l_v0: [ 2 ] r0_v0: [ 11 ] r1_v0: [ 1970-01-01 00:00:00.101 ] AsofjoinNode(0xffffc2670910): received batch from input 0: time: [ 1970-01-01 00:00:00.002000 ] key2: [ 1970-01-01 ] key: [ 1970-01-02 ] l_v0: [ 3 ] AsofjoinNode(0xffffb33fb440): Advancing input 1 AsofjoinNode(0xffffb33fb360): memo 1 remove: ts=2000 AsofjoinNode(0xffffb33fb440): Advancing input 2 AsofjoinNode(0xffffb33fb360): memo 2 remove: ts=2000 AsofjoinNode(0xffffb33fb440): Emplace: key=10621589963589458110 lhs_latest_row=0 lhs_latest_time=2000 AsofjoinNode(0xffffb33fb440): i=1 has_entry=1 time=2500 row=2 accepted=1 AsofjoinNode(0xffffb33fb440): i=2 has_entry=1 time=2500 row=2 accepted=1 AsofjoinNode(0xffffb33fb6a0): produce batch 2: time: [ 1970-01-01 00:00:00.002000 ] key2: [ 1970-01-01 ] key: [ 1970-01-02 ] l_v0: [ 3 ] r0_v0: [ 12 ] r1_v0: [ 1970-01-01 00:00:00.102 ] Comparing flattened expected table: time: timestamp[us, tz=UTC] key2: date32[day] key: date32[day] l_v0: uint16 r0_v0: double r1_v0: timestamp[ms, tz=UTC] ---- time: [ [ 1970-01-01 00:00:00.000000, 1970-01-01 00:00:00.001000, 1970-01-01 00:00:00.002000 ] ] key2: [ [ 1970-01-01, 1970-01-01, 1970-01-01 ] ] key: [ [ 1970-01-02, 1970-01-03, 1970-01-02 ] ] l_v0: [ [ 1, 2, 3 ] ] r0_v0: [ [ 10, null, 12 ] ] r1_v0: [ [ 1970-01-01 00:00:00.100, null, 1970-01-01 00:00:00.102 ] ] with flattened result table: time: timestamp[us, tz=UTC] key2: date32[day] key: date32[day] l_v0: uint16 r0_v0: double r1_v0: timestamp[ms, tz=UTC] ---- time: [ [ 1970-01-01 00:00:00.000000 ], [ 1970-01-01 00:00:00.001000 ], [ 1970-01-01 00:00:00.002000 ] ] key2: [ [ 1970-01-01 ], [ 1970-01-01 ], [ 1970-01-01 ] ] key: [ [ 1970-01-02 ], [ 1970-01-03 ], [ 1970-01-02 ] ] l_v0: [ [ 1 ], [ 2 ], [ 3 ] ] r0_v0: [ [ 10 ], [ 11 ], [ 12 ] ] r1_v0: [ [ 1970-01-01 00:00:00.100 ], [ 1970-01-01 00:00:00.101 ], [ 1970-01-01 00:00:00.102 ] ] [ FAILED ] AsofJoinNodeTest/AsofJoinBasicTest.TestBasic7Forward/2, where GetParam() = AsofJoinBasicParams: MutateByKey (52 ms) ``` ### Component(s) C++, Continuous Integration -- This is an automated message from the Apache Git Service. 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