roachtest: add test that aggregates orm blacklist failures

The spreadsheet we discussed is unwieldy - hard to edit and impossible to keep
up to date. If we write down blacklists in code, then we can use an approach
like this to always have an up to date aggregation.

So far it seems like there's just a lot of unknowns to categorize still.

The output today:

```
=== RUN   TestBlacklists
 648: unknown                                                (unknown)
 493: cockroachdb#5807   (sql: Add support for TEMP tables)
 151: cockroachdb#17511  (sql: support stored procedures)
  86: cockroachdb#26097  (sql: make TIMETZ more pg-compatible)
  56: cockroachdb#10735  (sql: support SQL savepoints)
  55: cockroachdb#32552  (multi-dim arrays)
  55: cockroachdb#26508  (sql: restricted DDL / DML inside transactions)
  52: cockroachdb#32565  (sql: support optional TIME precision)
  39: cockroachdb#243    (roadmap: Blob storage)
  33: cockroachdb#26725  (sql: support postgres' API to handle blob storage (incl lo_creat, lo_from_bytea))
  31: cockroachdb#27793  (sql: support custom/user-defined base scalar (primitive) types)
  24: cockroachdb#12123  (sql: Can't drop and replace a table within a transaction)
  24: cockroachdb#26443  (sql: support user-defined schemas between database and table)
  20: cockroachdb#21286  (sql: Add support for geometric types)
  18: cockroachdb#6583   (sql: explicit lock syntax (SELECT FOR {SHARE,UPDATE} {skip locked,nowait}))
  17: cockroachdb#22329  (Support XA distributed transactions in CockroachDB)
  16: cockroachdb#24062  (sql: 32 bit SERIAL type)
  16: cockroachdb#30352  (roadmap:when CockroachDB  will support cursor?)
  12: cockroachdb#27791  (sql: support RANGE types)
   8: cockroachdb#40195  (pgwire: multiple active result sets (portals) not supported)
   8: cockroachdb#6130   (sql: add support for key watches with notifications of changes)
   5: Expected Failure                                       (unknown)
   5: cockroachdb#23468  (sql: support sql arrays of JSONB)
   5: cockroachdb#40854  (sql: set application_name from connection string)
   4: cockroachdb#35879  (sql: `default_transaction_read_only` should also accept 'on' and 'off')
   4: cockroachdb#32610  (sql: can't insert self reference)
   4: cockroachdb#40205  (sql: add non-trivial implementations of FOR UPDATE, FOR NO KEY UPDATE, FOR SHARE, FOR NO KEY SHARE)
   4: cockroachdb#35897  (sql: unknown function: pg_terminate_backend())
   4: cockroachdb#4035   (sql/pgwire: missing support for row count limits in pgwire)
   3: cockroachdb#27796  (sql: support user-defined DOMAIN types)
   3: cockroachdb#3781   (sql: Add Data Type Formatting Functions)
   3: cockroachdb#40476  (sql: support `FOR {UPDATE,SHARE} {SKIP LOCKED,NOWAIT}`)
   3: cockroachdb#35882  (sql: support other character sets)
   2: cockroachdb#10028  (sql: Support view queries with star expansions)
   2: cockroachdb#35807  (sql: INTERVAL output doesn't match PG)
   2: cockroachdb#35902  (sql: large object support)
   2: cockroachdb#40474  (sql: support `SELECT ... FOR UPDATE OF` syntax)
   1: cockroachdb#18846  (sql: Support CIDR column type)
   1: cockroachdb#9682   (sql: implement computed indexes)
   1: cockroachdb#31632  (sql: FK options (deferrable, etc))
   1: cockroachdb#24897  (sql: CREATE OR REPLACE VIEW)
   1: pass?                                                  (unknown)
   1: cockroachdb#36215  (sql: enable setting standard_conforming_strings to off)
   1: cockroachdb#32562  (sql: support SET LOCAL and txn-scoped session variable changes)
   1: cockroachdb#36116  (sql: psychopg: investigate how `'infinity'::timestamp` is presented)
   1: cockroachdb#26732  (sql: support the binary operator: <int> / <float>)
   1: cockroachdb#23299  (sql: support coercing string literals to arrays)
   1: cockroachdb#36115  (sql: psychopg: investigate if datetimetz is being returned instead of datetime)
   1: cockroachdb#26925  (sql: make the CockroachDB integer types more compatible with postgres)
   1: cockroachdb#21085  (sql: WITH RECURSIVE (recursive common table expressions))
   1: cockroachdb#36179  (sql: implicity convert date to timestamp)
   1: cockroachdb#36118  (sql: Cannot parse '24:00' as type time)
   1: cockroachdb#31708  (sql: support current_time)
```

Release justification: non-production change
Release note: None

pkg/cmd/roachtest/blacklist_test.go

@@ -0,0 +1,186 @@
+// Copyright 2019 The Cockroach Authors.
+//
+// Use of this software is governed by the Business Source License
+// included in the file licenses/BSL.txt.
+//
+// As of the Change Date specified in that file, in accordance with
+// the Business Source License, use of this software will be governed
+// by the Apache License, Version 2.0, included in the file
+// licenses/APL.txt.
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"sort"
+	"strconv"
+	"testing"
+
+	"github.com/google/go-github/github"
+)
+
+var issueTitleMap = map[int]string{
+	243:   "roadmap: Blob storage",
+	3781:  "sql: Add Data Type Formatting Functions",
+	4035:  "sql/pgwire: missing support for row count limits in pgwire",
+	5807:  "sql: Add support for TEMP tables",
+	6130:  "sql: add support for key watches with notifications of changes",
+	6583:  "sql: explicit lock syntax (SELECT FOR {SHARE,UPDATE} {skip locked,nowait})",
+	9682:  "sql: implement computed indexes",
+	10028: "sql: Support view queries with star expansions",
+	10735: "sql: support SQL savepoints",
+	12123: "sql: Can't drop and replace a table within a transaction",
+	12137: "sql: support SEARCH_PATH variable",
+	17511: "sql: support stored procedures",
+	18846: "sql: Support CIDR column type",
+	19141: "sql: primary keys cannot be changed",
+	21085: "sql: WITH RECURSIVE (recursive common table expressions)",
+	21286: "sql: Add support for geometric types",
+	22329: "Support XA distributed transactions in CockroachDB",
+	23299: "sql: support coercing string literals to arrays",
+	23468: "sql: support sql arrays of JSONB",
+	24062: "sql: 32 bit SERIAL type",
+	24897: "sql: CREATE OR REPLACE VIEW",
+	26097: "sql: make TIMETZ more pg-compatible",
+	26366: "sql: Null characters in strings",
+	26443: "sql: support user-defined schemas between database and table",
+	26508: "sql: restricted DDL / DML inside transactions",
+	26725: "sql: support postgres' API to handle blob storage (incl lo_creat, lo_from_bytea)",
+	26732: "sql: support the binary operator: <int> / <float>",
+	26925: "sql: make the CockroachDB integer types more compatible with postgres",
+	26947: "sql: support database-level session variable defaults",
+	27791: "sql: support RANGE types",
+	27793: "sql: support custom/user-defined base scalar (primitive) types",
+	27796: "sql: support user-defined DOMAIN types",
+	30352: "roadmap:when CockroachDB  will support cursor?",
+	31113: "server: maybe surface unix socket",
+	31632: "sql: FK options (deferrable, etc)",
+	31708: "sql: support current_time",
+	32552: "multi-dim arrays",
+	32562: "sql: support SET LOCAL and txn-scoped session variable changes",
+	32565: "sql: support optional TIME precision",
+	32610: "sql: can't insert self reference",
+	35807: "sql: INTERVAL output doesn't match PG",
+	35879: "sql: `default_transaction_read_only` should also accept 'on' and 'off'",
+	35882: "sql: support other character sets",
+	35897: "sql: unknown function: pg_terminate_backend()",
+	35902: "sql: large object support",
+	36115: "sql: psychopg: investigate if datetimetz is being returned instead of datetime",
+	36116: "sql: psychopg: investigate how `'infinity'::timestamp` is presented",
+	36118: "sql: Cannot parse '24:00' as type time",
+	36179: "sql: implicitly convert date to timestamp",
+	36215: "sql: enable setting standard_conforming_strings to off",
+	37129: "Login issue: psql: ERROR:  unimplemented client encoding: \"sqlascii\"",
+	40195: "pgwire: multiple active result sets (portals) not supported",
+	40205: "sql: add non-trivial implementations of FOR UPDATE, FOR NO KEY UPDATE, FOR SHARE, FOR NO KEY SHARE",
+	40474: "sql: support `SELECT ... FOR UPDATE OF` syntax",
+	40476: "sql: support `FOR {UPDATE,SHARE} {SKIP LOCKED,NOWAIT}`",
+	40854: "sql: set application_name from connection string",
+	41335: "Support pgwire query cancellation",
+	41405: "sql: cast string to int[] or decimal[] when appropriate",
+	41412: "Support for SQL declare (cursor)",
+	41445: "sql: ERROR: cached plan must not change result type",
+	41448: "sql: make `/` operator perform integer division",
+	41511: "sql: PGJDBC encounters \"SimpleQuery not allowed while in extended protocol mode\"",
+	41513: "sql: PGJDBC encounters \"there is already a transaction in progress\" error",
+	41514: "sql: PGJDBC batch statements do not get correct return codes with autocommit on",
+	41522: "sql: support NOTIFY, LISTEN, and UNLISTEN commands of postgresql",
+	41547: "sql: wrong error code returned when performing invalid byte sequence casts",
+	41551: "sql/pgwire: return correct error code for failed auth",
+	41558: "sql: support prepared statements with unknown types",
+	41563: "sql: differing TIMESTAMPTZ output with respect to postgres",
+	41564: "sql: 'infinity' returned as timestamp rather than 'infinity'",
+	41565: "sql: timestamp with time zone does not include location",
+	41578: "sql: support `money` type",
+	41596: "sql: error for NULL IN subquery",
+	41608: "sql: support more COPY syntax",
+	41653: "ORMs/psycopg2: an issue with the default JSON parser",
+	41688: "sql: SELECT 1 evaluates to different `INT` width than in postgres",
+	41689: "sql: float4 fidelity not maintained",
+	41690: "sql/drivers: test issue catch-all",
+	41771: "sql: add getdatabaseencoding() function",
+	41773: "sql: support more values for `DateStyle` session parameter",
+	41775: "sql: TIMESTAMP should be able to be inserted into TIMESTAMPTZ column",
+	41776: "sql: invalid value for parameter \"TimeZone\": \"GMT-08:00\"",
+	41777: "sql: support dollar-quotes",
+	41778: "sql: virtual schema table not implemented: pg_catalog.pg_prepared_statements",
+	41779: "sql: extended protocol should have `interval` vs varchar` type mismatch error",
+	41781: "sql: support updates on cursor objects",
+	41786: "sql: handle infinite timestamps more accurately",
+	41870: "sql: SERIAL column should have database metadata IS_AUTOINCREMENT=YES",
+	41872: "sql: unsupported binary operator: <string> || <oid>",
+}
+
+func TestBlacklists(t *testing.T) {
+	blacklists := []blacklist{
+		hibernateBlackList19_2, pgjdbcBlackList19_2, psycopgBlackList19_2, djangoBlacklist19_2, sqlAlchemyBlacklist,
+		libPQBlacklist19_2, gopgBlackList19_2,
+	}
+	var failureMap = make(map[string]int)
+	for _, bl := range blacklists {
+		for _, reason := range bl {
+			failureMap[reason]++
+		}
+	}
+
+	type reasonCount struct {
+		reason string
+		count  int
+	}
+
+	counts := make([]reasonCount, 0, len(failureMap))
+
+	for reason, count := range failureMap {
+		counts = append(counts, reasonCount{reason: reason, count: count})
+	}
+
+	ctx := context.Background()
+	// If you run out of non-authed requests, set ts to your personal access token.
+	// ts := oauth2.StaticTokenSource(
+	// &oauth2.Token{AccessToken: "github personal access token"},
+	// )
+	// tc := oauth2.NewClient(ctx, ts)
+	// client := github.NewClient(tc)
+	client := github.NewClient(nil)
+
+	sort.Slice(counts, func(i, j int) bool {
+		return counts[i].count > counts[j].count
+	})
+	var editedIssueTitleMap bool
+	for i := range counts {
+		issueTitle := "unknown"
+		reason := counts[i].reason
+		var issueNum int
+		var err error
+		if issueNum, err = strconv.Atoi(counts[i].reason); err == nil {
+			if issueTitleMap[issueNum] == "" {
+				// Found an issue without a title in issueTitleMap. Fetch it from GitHub.
+				t.Log("Fetching", issueNum)
+				if issue, _, err := client.Issues.Get(ctx, "cockroachdb", "cockroach", issueNum); err == nil {
+					editedIssueTitleMap = true
+					issueTitleMap[issueNum] = issue.GetTitle()
+				}
+			}
+			reason = fmt.Sprintf("https://github.com/cockroachdb/cockroach/issues/%d", issueNum)
+			issueTitle = issueTitleMap[issueNum]
+		}
+		fmt.Printf("%4d,%-54s,(%s)\n", counts[i].count, reason, issueTitle)
+	}
+
+	if editedIssueTitleMap {
+		// Print out a new issueTitleMap so the user can edit the one in this file.
+		issueNums := make([]int, 0, len(issueTitleMap))
+		for k := range issueTitleMap {
+			issueNums = append(issueNums, k)
+		}
+		sort.Ints(issueNums)
+		fmt.Println("There were new issues to add to the map since the last time the map was updated.")
+		fmt.Println("Edit pkg/cmd/roachtest/blacklist_test.go and replace issueTitleMap with the following:")
+		fmt.Println("var issueTitleMap = map[int]string{")
+		for _, n := range issueNums {
+			fmt.Printf("%7d: %q,\n", n, issueTitleMap[n])
+		}
+		fmt.Println("}")
+	}
+}