roachtest: tpcdsvec failed

[cockroach-teamcity]

(roachtest).tpcdsvec failed on master@056e32e84831f13b286fceb7681dd0cd2b00b4b4:

The test failed on branch=master, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/tpcdsvec/run_1
	test.go:264,tpcdsvec.go:202,tpcdsvec.go:212,test_runner.go:753: 

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[yuzefovich]

Query 49 got an internal error:

08:31:36 test.go:190: test status: encountered an error: ERROR: internal error: unexpected error from the vectorized engine: interface conversion: coldata.column is *coldata.Bytes, not []bool (SQLSTATE XX000)

[cockroach-teamcity]

(roachtest).tpcdsvec failed on master@c73fb589e223d21b7f5cf51e6fc8620b47b95de4:

The test failed on branch=master, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/tpcdsvec/run_1
	test.go:264,tpcdsvec.go:202,tpcdsvec.go:212,test_runner.go:753: 

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[yuzefovich]

For posterity, here is the comment that describes the "type schema corruption" scenario this query ran into (from colexec/execplan.go file):

// NOTE: throughout this file we do not append an output type of a projecting
// operator to the passed-in type schema - we, instead, always allocate a new
// type slice and copy over the old schema and set the output column of a
// projecting operator in the next slot. We attempt to enforce this by a linter
// rule, and such behavior prevents the type schema corruption scenario as
// described below.
//
// Without explicit new allocations, tt is possible that planSelectionOperators
// (and other planning functions) reuse the same array for filterColumnTypes as
// result.ColumnTypes is using because there was enough capacity to do so.
// As an example, consider the following scenario in the context of
// planFilterExpr method:
// 1. r.ColumnTypes={*types.Bool} with len=1 and cap=4
// 2. planSelectionOperators adds another types.Int column, so
//    filterColumnTypes={*types.Bool, *types.Int} with len=2 and cap=4
//    Crucially, it uses exact same underlying array as r.ColumnTypes
//    uses.
// 3. we project out second column, so r.ColumnTypes={*types.Bool}
// 4. later, we add another *types.Float column, so
//    r.ColumnTypes={*types.Bool, *types.Float}, but there is enough
//    capacity in the array, so we simply overwrite the second slot
//    with the new type which corrupts filterColumnTypes to become
//    {*types.Bool, *types.Float}, and we can get into a runtime type
//    mismatch situation.

[cockroach-teamcity]

(roachtest).tpcdsvec failed on master@0e16cc15f139b816b8e46fe6571691a8ec0e6937:

The test failed on branch=master, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/tpcdsvec/run_1
	test.go:264,tpcdsvec.go:202,tpcdsvec.go:212,test_runner.go:753: 

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Artifacts: /tpcdsvec

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[cockroach-teamcity]

(roachtest).tpcdsvec failed on master@d620f6242ad43481e61a6af19416733cf05233a4:

The test failed on branch=master, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/tpcdsvec/run_1
	test.go:264,tpcdsvec.go:202,tpcdsvec.go:212,test_runner.go:753: 

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[cockroach-teamcity]

(roachtest).tpcdsvec failed on master@60c9e055e970bd7f150ebcfad266929b2638d635:

The test failed on branch=master, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/tpcdsvec/run_1
	test.go:264,tpcdsvec.go:202,tpcdsvec.go:212,test_runner.go:753: 

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[cockroach-teamcity]

(roachtest).tpcdsvec failed on master@a20a8811ee6abfe3754220e893ed383afbab21c9:

The test failed on branch=master, cloud=gce:
test artifacts and logs in: /home/agent/work/.go/src/github.com/cockroachdb/cockroach/artifacts/tpcdsvec/run_1
	test.go:264,tpcdsvec.go:202,tpcdsvec.go:212,test_runner.go:753: 

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Artifacts: /tpcdsvec

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