sql: internal error: unexpected type for COLLATE: log.SafeType

[maddyblue]

SELECT ISERROR ( NAME 'string' COLLATE AS )

   assertion failure
  - error with attached stack trace:
    github.com/cockroachdb/cockroach/pkg/sql/opt/norm.(*CustomFuncs).CastToCollatedString
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/opt/norm/custom_funcs.go:1601
    github.com/cockroachdb/cockroach/pkg/sql/opt/norm.(*Factory).ConstructCollate
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/opt/norm/factory.og.go:13920
    github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder.(*Builder).buildScalar
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/scalar.go:106
    github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder.(*Builder).buildScalar
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/scalar.go:159
    github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder.(*Builder).buildProjectionList
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/project.go:164
    github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder.(*Builder).buildSelectClause
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/select.go:695
    github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder.(*Builder).buildSelect
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/select.go:620
    github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder.(*Builder).buildStmt
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/builder.go:205
    github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder.(*Builder).Build
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/builder.go:161
    github.com/cockroachdb/cockroach/pkg/sql.(*optPlanningCtx).buildExecMemo
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/plan_opt.go:412
    github.com/cockroachdb/cockroach/pkg/sql.(*planner).makeOptimizerPlan
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/plan_opt.go:144
    github.com/cockroachdb/cockroach/pkg/sql.(*connExecutor).makeExecPlan
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/conn_executor_exec.go:764
    github.com/cockroachdb/cockroach/pkg/sql.(*connExecutor).dispatchToExecutionEngine
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/conn_executor_exec.go:645
    github.com/cockroachdb/cockroach/pkg/sql.(*connExecutor).execStmtInOpenState
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/conn_executor_exec.go:417
    github.com/cockroachdb/cockroach/pkg/sql.(*connExecutor).execStmt
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/conn_executor_exec.go:99
    github.com/cockroachdb/cockroach/pkg/sql.(*connExecutor).execCmd
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/conn_executor.go:1204
    github.com/cockroachdb/cockroach/pkg/sql.(*connExecutor).run
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/conn_executor.go:1140
    github.com/cockroachdb/cockroach/pkg/sql.(*Server).ServeConn
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/conn_executor.go:442
    github.com/cockroachdb/cockroach/pkg/sql/pgwire.(*conn).processCommandsAsync.func1
        /home/mjibson/go/src/github.com/cockroachdb/cockroach/pkg/sql/pgwire/conn.go:580
    runtime.goexit
        /usr/local/go/src/runtime/asm_amd64.s:1337
  - error with embedded safe details: unexpected type for COLLATE: %T
    -- arg 1: 'string'
  - unexpected type for COLLATE: log.SafeType
pq: internal error: unexpected type for COLLATE: log.SafeType
DETAIL: stack trace:
github.com/cockroachdb/cockroach/pkg/sql/opt/norm/custom_funcs.go:1601: CastToCollatedString()
github.com/cockroachdb/cockroach/pkg/sql/opt/norm/factory.og.go:13920: ConstructCollate()
github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/scalar.go:106: buildScalar()
github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/scalar.go:159: buildScalar()
github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/project.go:164: buildProjectionList()
github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/select.go:695: buildSelectClause()
github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/select.go:620: buildSelect()
github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/builder.go:205: buildStmt()
github.com/cockroachdb/cockroach/pkg/sql/opt/optbuilder/builder.go:161: Build()
github.com/cockroachdb/cockroach/pkg/sql/plan_opt.go:412: buildExecMemo()
github.com/cockroachdb/cockroach/pkg/sql/plan_opt.go:144: makeOptimizerPlan()
github.com/cockroachdb/cockroach/pkg/sql/conn_executor_exec.go:764: makeExecPlan()
github.com/cockroachdb/cockroach/pkg/sql/conn_executor_exec.go:645: dispatchToExecutionEngine()
github.com/cockroachdb/cockroach/pkg/sql/conn_executor_exec.go:417: execStmtInOpenState()
github.com/cockroachdb/cockroach/pkg/sql/conn_executor_exec.go:99: execStmt()
github.com/cockroachdb/cockroach/pkg/sql/conn_executor.go:1204: execCmd()
github.com/cockroachdb/cockroach/pkg/sql/conn_executor.go:1140: run()
github.com/cockroachdb/cockroach/pkg/sql/conn_executor.go:442: ServeConn()
github.com/cockroachdb/cockroach/pkg/sql/pgwire/conn.go:580: func1()
runtime/asm_amd64.s:1337: goexit()