sql/schemachange: draft to investigate descriptor not found (SQLSTATE XXUUU)

[Dedej-Bergin]

   {
    "message": "trigger_log table descriptor ID: 124"
   },
   {
    "query": "SELECT EXISTS (SELECT table_name FROM information_schema.tables WHERE (table_schema = $1) AND (table_name = $2))",
    "queryArgs": [
     "public",
     "table_w0_6"
    ],
    "result": true
   },
   {
    "query": "SELECT EXISTS (SELECT table_name FROM information_schema.tables WHERE (table_schema = $1) AND (table_name = $2))",
    "queryArgs": [
     "public",
     "table_w1_1"
    ],
    "result": true
   },
   {
    "message": "Created trigger function CREATE FUNCTION trigger_function_w0_50() RETURNS TRIGGER AS $$ BEGIN INSERT INTO trigger_log VALUES (current_timestamp);SELECT t1.col1_w1_9 AS col0, t0.col6_w0_11 AS col1, t0.col6_w0_10 AS col2, t1.col1_w1_18 AS col3, t1.col1_w1_3 AS col4, t0.col6_w0_7 AS col5, t1.col1_w1_11 AS col6, t0.col6_w0_9 AS col7, t1.col1_w1_9 AS col8, t0.col6_w0_12 AS col9, t1.col1_w1_11 AS col10, t1.col1_w1_3 AS col11, t1.col1_w1_17 AS col12, t0.col6_w0_12 AS col13 FROM public.table_w0_6 AS t0 ,public.table_w1_1 AS t1 FETCH FIRST 1 ROWS ONLY;RETURN NULL;END; $$ LANGUAGE PLpgSQL"
   },
   {
    "message": "createTrigger: CREATE FUNCTION trigger_function_w0_50() RETURNS TRIGGER AS $$ BEGIN INSERT INTO trigger_log VALUES (current_timestamp);SELECT t1.col1_w1_9 AS col0, t0.col6_w0_11 AS col1, t0.col6_w0_10 AS col2, t1.col1_w1_18 AS col3, t1.col1_w1_3 AS col4, t0.col6_w0_7 AS col5, t1.col1_w1_11 AS col6, t0.col6_w0_9 AS col7, t1.col1_w1_9 AS col8, t0.col6_w0_12 AS col9, t1.col1_w1_11 AS col10, t1.col1_w1_3 AS col11, t1.col1_w1_17 AS col12, t0.col6_w0_12 AS col13 FROM public.table_w0_6 AS t0 ,public.table_w1_1 AS t1 FETCH FIRST 1 ROWS ONLY;RETURN NULL;END; $$ LANGUAGE PLpgSQL;CREATE TRIGGER trigger_w0_51 AFTER INSERT OR DELETE ON public.table_w0_6 FOR EACH ROW EXECUTE FUNCTION trigger_function_w0_50()"
   }
  ],
  "previousStatements": [
   "CREATE FUNCTION trigger_function_w0_50() RETURNS TRIGGER AS $$ BEGIN INSERT INTO trigger_log VALUES (current_timestamp);SELECT t1.col1_w1_9 AS col0, t0.col6_w0_11 AS col1, t0.col6_w0_10 AS col2, t1.col1_w1_18 AS col3, t1.col1_w1_3 AS col4, t0.col6_w0_7 AS col5, t1.col1_w1_11 AS col6, t0.col6_w0_9 AS col7, t1.col1_w1_9 AS col8, t0.col6_w0_12 AS col9, t1.col1_w1_11 AS col10, t1.col1_w1_3 AS col11, t1.col1_w1_17 AS col12, t0.col6_w0_12 AS col13 FROM public.table_w0_6 AS t0 ,public.table_w1_1 AS t1 FETCH FIRST 1 ROWS ONLY;RETURN NULL;END; $$ LANGUAGE PLpgSQL;CREATE TRIGGER trigger_w0_51 AFTER INSERT OR DELETE ON public.table_w0_6 FOR EACH ROW EXECUTE FUNCTION trigger_function_w0_50()"
  ]
 }
}
Schema Workload Stats
Total Schema Statements Executed = 33
Total Schema Statements Succeeded = 33
Total Schema Statement Expected Failures = 0
Total Transactions Committed = 19
Total Transactions Rolled Back = 24
Total Transactions Executed = 43
test logs left over in: /Users/bdedej/go/src/github.com/cockroachdb/cockroach/y/_tmp/7d1af777aae5fb8cc05bf2aaa6382e4b/logTestWorkload1765799075
--- FAIL: TestWorkload (38.89s)
    test_log_scope.go:165: test logs captured to: /Users/bdedej/go/src/github.com/cockroachdb/cockroach/y/_tmp/7d1af777aae5fb8cc05bf2aaa6382e4b/logTestWorkload1765799075
    test_log_scope.go:76: use -show-logs to present logs inline
    schema_change_external_test.go:132:
        	Error Trace:	pkg/ccl/testccl/workload/schemachange/schema_change_external_test.go:132
        	Error:      	Received unexpected error:
        	            	***UNEXPECTED COMMIT ERROR; Received an unexpected commit error: ERROR: error executing PreCommitPhase stage 2 of 2 with 20 MutationType ops: *scop.UpdateTableBackReferencesInRelations: &{{{}} 113 [{106 [2 8 10 16 17] 0} {124 [1] 0}]}: referenced descriptor ID 124: looking up ID 124: descriptor not found (SQLSTATE XXUUU)
        	            	(1) forced error mark
        	            	  | "fatal error when running txn"
        	            	  | github.com/cockroachdb/errors/withstack/*withstack.withStack::
        	            	Wraps: (2)
        	            	Wraps: (3) attached stack trace
        	            	  -- stack trace:
        	            	  | github.com/cockroachdb/cockroach/pkg/workload/schemachange.(*schemaChangeWorker).run
        	            	  | 	pkg/workload/schemachange/schemachange.go:705
        	            	  | pkg/ccl/testccl/workload/schemachange/schemachange_test_test.TestWorkload.TestWorkload.func4.func6
        	            	  | 	pkg/ccl/testccl/workload/schemachange/schema_change_external_test.go:121
        	            	  | golang.org/x/sync/errgroup.(*Group).Go.func1
        	            	  | 	external/org_golang_x_sync/errgroup/errgroup.go:78
        	            	  | runtime.goexit
        	            	  | 	src/runtime/asm_arm64.s:1223
        	            	Wraps: (4) ***UNEXPECTED COMMIT ERROR; Received an unexpected commit error
        	            	Wraps: (5) ERROR: error executing PreCommitPhase stage 2 of 2 with 20 MutationType ops: *scop.UpdateTableBackReferencesInRelations: &{{{}} 113 [{106 [2 8 10 16 17] 0} {124 [1] 0}]}: referenced descriptor ID 124: looking up ID 124: descriptor not found (SQLSTATE XXUUU)
        	            	Error types: (1) *markers.withMark (2) *schemachange.ErrorState (3) *withstack.withStack (4) *errutil.withPrefix (5) *pgconn.PgError
        	Test:       	TestWorkload
    schema_change_external_test.go:97: backup, tracing data, and system table dumps in /Users/bdedej/go/src/github.com/cockroachdb/cockroach/y/_tmp/7d1af777aae5fb8cc05bf2aaa6382e4b/logTestWorkload1765799075
    panic.go:635: -- test log scope end --
FAIL

[cockroach-teamcity]

This change is