Merge cockroachdb#101260 cockroachdb#108160 cockroachdb#108300 cockroachdb#108328 cockroachdb#108341 cockroachdb#108370 cockroachdb#108379

101260: sql: replicating JSON empty array ordering found in Postgres r=mgartner a=Shivs11

Currently, cockroachdb#97928 and cockroachdb#99275 are responsible for laying out a
lexicographical ordering for JSON columns to be forward indexable in
nature. This ordering is based on the rules posted by Postgres and is
in cockroachdb#99849.

However, Postgres currently sorts the empty JSON array before any other
JSON values. A Postgres bug report for this has been opened:
https://www.postgresql.org/message-id/17873-826fdc8bbcace4f1%40postgresql.org

This PR intends on replicating the Postgres behavior.

Fixes cockroachdb#105668

Epic: CRDB-24501

Release note: None


108160: roachtest/awsdms: run once a week instead r=Jeremyyang920 a=otan

Save a bit of mad dosh by running awsdms once a weekly instead of daily. We don't need this tested every week.

Epic: None

Release note: None

108300: schemachanger: Unskip some backup tests r=Xiang-Gu a=Xiang-Gu

Randomly skip subtests in the BACKUP/RESTORE suites before parallelizing them.

Epic: None
Release note: None

108328: rowexec: fix TestUncertaintyErrorIsReturned under race r=yuzefovich a=yuzefovich

We just saw a case when `TestUncertaintyErrorIsReturned` failed under race because we got a different DistSQL plan. This seems plausible in case the range cache population (which the test does explicitly) isn't quick enough for some reason, so this commit allows for the DistSQL plan to match the expectation via `SucceedsSoon` (if we happen to get a bad plan, then the following query execution should have the up-to-date range cache).

Fixes: cockroachdb#108250.

Release note: None

108341: importer: fix stale comment on mysqlStrToDatum r=mgartner,DrewKimball a=otan

Release note: None
Epic: None

From cockroachdb#108286 (review)

108370: go.mod: bump Pebble to fffe02a195e3 r=RahulAggarwal1016 a=RahulAggarwal1016

fffe02a1 db: simplify ScanInternal()
df7e2ae1 vfs: deflake TestDiskHealthChecking_Filesystem ff5c929a Rate Limit Scan Statistics
af8c5f27 internal/cache: mark panic messages as redaction-safe

Epic: none
Release note: none

108379: changefeedccl: deflake TestChangefeedSchemaChangeBackfillCheckpoint r=miretskiy a=jayshrivastava

Previously, the test `TestChangefeedSchemaChangeBackfillCheckpoint` would fail because it would read a table span too early. A schema change using the delcarative schema changer will update a table span to point to a new set of ranges. Previously, this test would use the span from before the schema change, which is incorrect. This change makes it use the span from after the schema change.

I stress tested this 30k times under the new schema changer and 10k times under the legacy schema changer to ensure the test is not flaky anymore.

Fixes: cockroachdb#108084
Release note: None
Epic: None

Co-authored-by: Shivam Saraf <[email protected]>
Co-authored-by: Oliver Tan <[email protected]>
Co-authored-by: Xiang Gu <[email protected]>
Co-authored-by: Yahor Yuzefovich <[email protected]>
Co-authored-by: Rahul Aggarwal <[email protected]>
Co-authored-by: Jayant Shrivastava <[email protected]>

Author: 7 people

DEPS.bzl

@@ -1595,10 +1595,10 @@ def go_deps():
         patches = [
             "@com_github_cockroachdb_cockroach//build/patches:com_github_cockroachdb_pebble.patch",
         ],
-        sha256 = "f0319e618ed024b7d708e2c1f8cf0d4b9b7e4112943288ba6036e893a7f8c151",
-        strip_prefix = "github.com/cockroachdb/[email protected]20230807145728-40d3f411e45b",
+        sha256 = "0866be1de9e4ba30d2b03d1300ca796e88260e620671ab6099850dd576e074a8",
+        strip_prefix = "github.com/cockroachdb/[email protected]20230808154433-fffe02a195e3",
         urls = [
-            "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/pebble/com_github_cockroachdb_pebble-v0.0.0-20230807145728-40d3f411e45b.zip",
+            "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/pebble/com_github_cockroachdb_pebble-v0.0.0-20230808154433-fffe02a195e3.zip",
         ],
     )
     go_repository(

build/bazelutil/distdir_files.bzl

@@ -320,7 +320,7 @@ DISTDIR_FILES = {
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/go-test-teamcity/com_github_cockroachdb_go_test_teamcity-v0.0.0-20191211140407-cff980ad0a55.zip": "bac30148e525b79d004da84d16453ddd2d5cd20528e9187f1d7dac708335674b",
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/gostdlib/com_github_cockroachdb_gostdlib-v1.19.0.zip": "c4d516bcfe8c07b6fc09b8a9a07a95065b36c2855627cb3514e40c98f872b69e",
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/logtags/com_github_cockroachdb_logtags-v0.0.0-20230118201751-21c54148d20b.zip": "ca7776f47e5fecb4c495490a679036bfc29d95bd7625290cfdb9abb0baf97476",
-    "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/pebble/com_github_cockroachdb_pebble-v0.0.0-20230807145728-40d3f411e45b.zip": "f0319e618ed024b7d708e2c1f8cf0d4b9b7e4112943288ba6036e893a7f8c151",
+    "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/pebble/com_github_cockroachdb_pebble-v0.0.0-20230808154433-fffe02a195e3.zip": "0866be1de9e4ba30d2b03d1300ca796e88260e620671ab6099850dd576e074a8",
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/redact/com_github_cockroachdb_redact-v1.1.5.zip": "11b30528eb0dafc8bc1a5ba39d81277c257cbe6946a7564402f588357c164560",
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/returncheck/com_github_cockroachdb_returncheck-v0.0.0-20200612231554-92cdbca611dd.zip": "ce92ba4352deec995b1f2eecf16eba7f5d51f5aa245a1c362dfe24c83d31f82b",
     "https://storage.googleapis.com/cockroach-godeps/gomod/github.com/cockroachdb/sentry-go/com_github_cockroachdb_sentry_go-v0.6.1-cockroachdb.2.zip": "fbb2207d02aecfdd411b1357efe1192dbb827959e36b7cab7491731ac55935c9",

docs/tech-notes/jsonb_forward_indexing.md

@@ -44,10 +44,18 @@ The following rules were kept in mind while designing this form of encoding, as
 5. Objects with an equal number of key value pairs are compared in the order:
 `key1`, `value1`, `key2`, `value2`, ….
 
+**NOTE:** There is one exception to these rules, which is neither documented by
+Postgres, nor mentioned in the source code: empty arrays are the minimum JSON
+value. As far as we can tell, this is a Postgres bug that has existed for some
+time. We've decided to replicate this behavior to remain consistent with
+Postgres. We've filed a [Postgres bug report](https://www.postgresql.org/message-id/17873-826fdc8bbcace4f1%40postgresql.org)
+to track the issue.
+
 In order to satisfy property 1 at all times, tags are defined in an increasing order of bytes. 
 These tags will also have to be defined in a way where the tag representing an object is a large byte representation 
 for a hexadecimal value (such as 0xff) and the subsequent objects have a value 1 less than the previous one,
-where the ordering is described in point 1 above. 
+where the ordering is described in point 1 above. There is a special tag for empty JSON arrays
+in order to handle the special case of empty arrays being ordered before all other JSON values.
 
 Additionally, tags representing terminators will also be defined. There will be two terminators, one for the ascending designation and the other for the descending one, and will be required to denote the end of a key encoding of the following JSON values: Objects, Arrays, Number and Strings. JSON Boolean and JSON Null are not required to have the terminator since they do not have variable length encoding due to the presence of a single tag (as explained later in this document).
 

go.mod

@@ -116,7 +116,7 @@ require (
 	github.com/cockroachdb/go-test-teamcity v0.0.0-20191211140407-cff980ad0a55
 	github.com/cockroachdb/gostdlib v1.19.0
 	github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b
-	github.com/cockroachdb/pebble v0.0.0-20230807145728-40d3f411e45b
+	github.com/cockroachdb/pebble v0.0.0-20230808154433-fffe02a195e3
 	github.com/cockroachdb/redact v1.1.5
 	github.com/cockroachdb/returncheck v0.0.0-20200612231554-92cdbca611dd
 	github.com/cockroachdb/stress v0.0.0-20220803192808-1806698b1b7b

go.sum

@@ -493,8 +493,8 @@ github.com/cockroachdb/gostdlib v1.19.0/go.mod h1:+dqqpARXbE/gRDEhCak6dm0l14AaTy
 github.com/cockroachdb/logtags v0.0.0-20211118104740-dabe8e521a4f/go.mod h1:Vz9DsVWQQhf3vs21MhPMZpMGSht7O/2vFW2xusFUVOs=
 github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b h1:r6VH0faHjZeQy818SGhaone5OnYfxFR/+AzdY3sf5aE=
 github.com/cockroachdb/logtags v0.0.0-20230118201751-21c54148d20b/go.mod h1:Vz9DsVWQQhf3vs21MhPMZpMGSht7O/2vFW2xusFUVOs=
-github.com/cockroachdb/pebble v0.0.0-20230807145728-40d3f411e45b h1:ymYyDZy5WYRTBqPVYgy0XUW+gHx2HeRkyt1FJmNJVOo=
-github.com/cockroachdb/pebble v0.0.0-20230807145728-40d3f411e45b/go.mod h1:FN5O47SBEz5+kO9fG8UTR64g2WS1u5ZFCgTvxGjoSks=
+github.com/cockroachdb/pebble v0.0.0-20230808154433-fffe02a195e3 h1:LUfRb+Ibf/OrSFHSyjls7neeWBAIsK4d/SWkv7z1nLw=
+github.com/cockroachdb/pebble v0.0.0-20230808154433-fffe02a195e3/go.mod h1:FN5O47SBEz5+kO9fG8UTR64g2WS1u5ZFCgTvxGjoSks=
 github.com/cockroachdb/redact v1.1.3/go.mod h1:BVNblN9mBWFyMyqK1k3AAiSxhvhfK2oOZZ2lK+dpvRg=
 github.com/cockroachdb/redact v1.1.5 h1:u1PMllDkdFfPWaNGMyLD1+so+aq3uUItthCFqzwPJ30=
 github.com/cockroachdb/redact v1.1.5/go.mod h1:BVNblN9mBWFyMyqK1k3AAiSxhvhfK2oOZZ2lK+dpvRg=

pkg/ccl/changefeedccl/changefeed_test.go

@@ -1949,15 +1949,17 @@ func TestChangefeedSchemaChangeBackfillCheckpoint(t *testing.T) {
 		changefeedbase.FrontierCheckpointMaxBytes.Override(
 			context.Background(), &s.Server.ClusterSettings().SV, maxCheckpointSize)
 
-		// Note the tableSpan to avoid resolved events that leave no gaps
-		fooDesc := desctestutils.TestingGetPublicTableDescriptor(
-			s.SystemServer.DB(), s.Codec, "d", "foo")
-		tableSpan := fooDesc.PrimaryIndexSpan(s.Codec)
+		var tableSpan roachpb.Span
+		refreshTableSpan := func() {
+			fooDesc := desctestutils.TestingGetPublicTableDescriptor(
+				s.SystemServer.DB(), s.Codec, "d", "foo")
+			tableSpan = fooDesc.PrimaryIndexSpan(s.Codec)
+		}
 
 		// FilterSpanWithMutation should ensure that once the backfill begins, the following resolved events
 		// that are for that backfill (are of the timestamp right after the backfill timestamp) resolve some
 		// but not all of the time, which results in a checkpoint eventually being created
-		haveGaps := false
+		numGaps := 0
 		var backfillTimestamp hlc.Timestamp
 		var initialCheckpoint roachpb.SpanGroup
 		var foundCheckpoint int32
@@ -1971,6 +1973,11 @@ func TestChangefeedSchemaChangeBackfillCheckpoint(t *testing.T) {
 			// timestamp such that all backfill spans have a timestamp of
 			// timestamp.Next().
 			if r.BoundaryType == expectedBoundaryType {
+				// NB: We wait until the schema change is public before looking
+				// up the table span. When using the declarative schema changer,
+				// the table span will be different before and after the schema
+				// change due to a primary index swap.
+				refreshTableSpan()
 				backfillTimestamp = r.Timestamp
 				return false, nil
 			}
@@ -1993,11 +2000,18 @@ func TestChangefeedSchemaChangeBackfillCheckpoint(t *testing.T) {
 				return !(backfillTimestamp.IsEmpty() || r.Timestamp.LessEq(backfillTimestamp.Next())), nil
 			}
 
-			// Only allow resolving if we definitely won't have a completely resolved table
-			if !r.Span.Equal(tableSpan) && haveGaps {
+			// At the end of a backfill, kv feed will emit a resolved span for the whole table.
+			// Filter this out because we would like to leave gaps.
+			if r.Span.Equal(tableSpan) {
+				return true, nil
+			}
+
+			// Ensure that we have at least 2 gaps, so when a second checkpoint happens later in this test,
+			// the second checkpoint can still leave at least one gap.
+			if numGaps >= 2 {
 				return rnd.Intn(10) > 7, nil
 			}
-			haveGaps = true
+			numGaps += 1
 			return true, nil
 		}
 
@@ -2026,7 +2040,7 @@ func TestChangefeedSchemaChangeBackfillCheckpoint(t *testing.T) {
 		// as well as the newly resolved ones
 		var secondCheckpoint roachpb.SpanGroup
 		foundCheckpoint = 0
-		haveGaps = false
+		numGaps = 0
 		knobs.FilterSpanWithMutation = func(r *jobspb.ResolvedSpan) (bool, error) {
 			// Stop resolving anything after second checkpoint set to avoid backfill completion
 			if secondCheckpoint.Len() > 0 {
@@ -2054,11 +2068,17 @@ func TestChangefeedSchemaChangeBackfillCheckpoint(t *testing.T) {
 
 			require.Falsef(t, initialCheckpoint.Encloses(r.Span), "second backfill should not resolve checkpointed span")
 
-			// Only allow resolving if we definitely won't have a completely resolved table
-			if !r.Span.Equal(tableSpan) && haveGaps {
+			// At the end of a backfill, kv feed will emit a resolved span for the whole table.
+			// Filter this out because we would like to leave at least one gap.
+			if r.Span.Equal(tableSpan) {
+				return true, nil
+			}
+
+			// Ensure there is at least one gap so that we can receive resolved spans later.
+			if numGaps >= 1 {
 				return rnd.Intn(10) > 7, nil
 			}
-			haveGaps = true
+			numGaps += 1
 			return true, nil
 		}
 
@@ -2097,15 +2117,10 @@ func TestChangefeedSchemaChangeBackfillCheckpoint(t *testing.T) {
 		// Pause job to avoid race on the resolved array
 		require.NoError(t, jobFeed.Pause())
 
-		// NB: With the declarative schema changer, there is a primary index swap,
-		// so the primary index span will change.
-		freshFooDesc := desctestutils.TestingGetPublicTableDescriptor(
-			s.SystemServer.DB(), s.Codec, "d", "foo")
-		tableSpanAfter := freshFooDesc.PrimaryIndexSpan(s.Codec)
-
 		// Verify that none of the resolved spans after resume were checkpointed.
+		t.Logf("Table Span: %s, Second Checkpoint: %v, Resolved Spans: %v", tableSpan, secondCheckpoint, resolved)
 		for _, sp := range resolved {
-			require.Falsef(t, !sp.Equal(tableSpanAfter) && secondCheckpoint.Contains(sp.Key), "span should not have been resolved: %s", sp)
+			require.Falsef(t, !sp.Equal(tableSpan) && secondCheckpoint.Contains(sp.Key), "span should not have been resolved: %s", sp)
 		}
 	}
 

pkg/cmd/roachtest/tests/awsdms.go

@@ -192,7 +192,7 @@ func registerAWSDMS(r registry.Registry) {
 		Owner:   registry.OwnerMigrations,
 		Cluster: r.MakeClusterSpec(1),
 		Leases:  registry.MetamorphicLeases,
-		Tags:    registry.Tags(`default`, `awsdms`, `aws`),
+		Tags:    registry.Tags(`weekly`, `aws-weekly`),
 		Run:     runAWSDMS,
 	})
 }

pkg/sql/importer/read_import_mysql.go

@@ -209,9 +209,10 @@ const (
 func mysqlStrToDatum(evalCtx *eval.Context, s string, desired *types.T) (tree.Datum, error) {
 	switch desired.Family() {
 	case types.BytesFamily:
-		//  mysql emits raw byte strings that do not use the same escaping as our ParseBytes
-		//	function expects, and the difference between ParseStringAs and
-		//	ParseDatumStringAs is whether or not it attempts to parse bytes.
+		// mysql emits raw byte strings that do not use the same escaping as our
+		// tree.ParseDBytes function expects, and the difference between
+		// tree.ParseAndRequireString and mysqlStrToDatum is whether or not it
+		// attempts to parse bytes.
 		return tree.NewDBytes(tree.DBytes(s)), nil
 	default:
 		res, _, err := tree.ParseAndRequireString(desired, s, evalCtx)

pkg/sql/logictest/testdata/logic_test/json_index

@@ -20,13 +20,13 @@ INSERT INTO t VALUES
 query T
 SELECT x FROM t ORDER BY x
 ----
+[]
 "a"
 "aa"
 "abcdefghi"
 "b"
 1
 100
-[]
 {"a": "b"}
 
 
@@ -38,13 +38,13 @@ INSERT INTO t VALUES
 query T
 SELECT x FROM t@t_pkey ORDER BY x
 ----
+[]
 "a"
 "aa"
 "abcdefghi"
 "b"
 1
 100
-[]
 {"a": "b"}
 
 # Use the index for point lookups.
@@ -77,12 +77,12 @@ query T
 SELECT x FROM t@t_pkey WHERE x > '1' ORDER BY x
 ----
 100
-[]
 {"a": "b"}
 
 query T
 SELECT x FROM t@t_pkey WHERE x < '1' ORDER BY x
 ----
+[]
 "a"
 "aa"
 "abcdefghi"
@@ -92,12 +92,12 @@ SELECT x FROM t@t_pkey WHERE x < '1' ORDER BY x
 query T
 SELECT x FROM t@t_pkey WHERE x > '1' OR x < '1' ORDER BY x
 ----
+[]
 "a"
 "aa"
 "abcdefghi"
 "b"
 100
-[]
 {"a": "b"}
 
 query T
@@ -109,12 +109,12 @@ query T
 SELECT x FROM t@t_pkey WHERE x > '1' OR x < '1' ORDER BY x DESC
 ----
 {"a": "b"}
-[]
 100
 "b"
 "abcdefghi"
 "aa"
 "a"
+[]
 
 # Adding more primitive JSON values.
 statement ok
@@ -129,6 +129,7 @@ INSERT INTO t VALUES
 query T
 SELECT x FROM t@t_pkey ORDER BY x
 ----
+[]
 null
 "Testing Punctuation?!."
 "a"
@@ -141,18 +142,17 @@ null
 100
 false
 true
-[]
 {"a": "b"}
 
 query T
 SELECT x FROM t@t_pkey WHERE x > 'true' ORDER BY x
 ----
-[]
 {"a": "b"}
 
 query T
 SELECT x FROM t@t_pkey WHERE x < 'false' ORDER BY x
 ----
+[]
 null
 "Testing Punctuation?!."
 "a"
@@ -330,12 +330,12 @@ query T
 SELECT x FROM t@t_pkey ORDER BY x
 ----
 NULL
+[]
 null
 "crdb"
 1
 false
 true
-[]
 [1, 2, 3]
 {}
 {"a": "b", "c": "d"}
@@ -346,24 +346,24 @@ SELECT x FROM t@t_pkey ORDER BY x DESC
 {"a": "b", "c": "d"}
 {}
 [1, 2, 3]
-[]
 true
 false
 1
 "crdb"
 null
+[]
 NULL
 
 # Test to show JSON Null is different from NULL.
 query T
 SELECT x FROM t@t_pkey WHERE x IS NOT NULL ORDER BY x
 ----
+[]
 null
 "crdb"
 1
 false
 true
-[]
 [1, 2, 3]
 {}
 {"a": "b", "c": "d"}
@@ -446,12 +446,12 @@ INSERT INTO t VALUES
 query T
 SELECT x FROM t@i ORDER BY x;
 ----
+[]
 null
 "crdb"
 1
 false
 true
-[]
 [null]
 [1]
 [{"a": "b"}]

pkg/sql/opt/exec/execbuilder/testdata/json

@@ -205,7 +205,7 @@ vectorized: true
 • scan
   missing stats
   table: t@t_pkey
-  spans: [/'null' - /'null'] [/'""' - /'""'] [/'[]' - /'[]'] [/'{}' - /'{}']
+  spans: [/'[]' - /'[]'] [/'null' - /'null'] [/'""' - /'""'] [/'{}' - /'{}']
 
 # Multicolumn index, including JSONB
 
@@ -252,20 +252,20 @@ INSERT INTO composite VALUES (1, '1.00'::JSONB), (2, '1'::JSONB), (3, '2'::JSONB
  (4, '3.0'::JSONB), (5, '"a"'::JSONB)
 ----
 CPut /Table/108/1/1/0 -> /TUPLE/
-InitPut /Table/108/2/"G*\x02\x00\x00\x89\x88" -> /BYTES/0x2f0f0c200000002000000403348964
+InitPut /Table/108/2/"H*\x02\x00\x00\x89\x88" -> /BYTES/0x2f0f0c200000002000000403348964
 CPut /Table/108/1/2/0 -> /TUPLE/
-InitPut /Table/108/2/"G*\x02\x00\x00\x8a\x88" -> /BYTES/
+InitPut /Table/108/2/"H*\x02\x00\x00\x8a\x88" -> /BYTES/
 CPut /Table/108/1/3/0 -> /TUPLE/
-InitPut /Table/108/2/"G*\x04\x00\x00\x8b\x88" -> /BYTES/
+InitPut /Table/108/2/"H*\x04\x00\x00\x8b\x88" -> /BYTES/
 CPut /Table/108/1/4/0 -> /TUPLE/
-InitPut /Table/108/2/"G*\x06\x00\x00\x8c\x88" -> /BYTES/0x2f0f0c20000000200000040334891e
+InitPut /Table/108/2/"H*\x06\x00\x00\x8c\x88" -> /BYTES/0x2f0f0c20000000200000040334891e
 CPut /Table/108/1/5/0 -> /TUPLE/
-InitPut /Table/108/2/"F\x12a\x00\x01\x00\x8d\x88" -> /BYTES/
+InitPut /Table/108/2/"G\x12a\x00\x01\x00\x8d\x88" -> /BYTES/
 
 query T kvtrace
 SELECT j FROM composite where j = '1.00'::JSONB
 ----
-Scan /Table/108/2/"G*\x02\x00\x0{0"-1"}
+Scan /Table/108/2/"H*\x02\x00\x0{0"-1"}
 
 query T
 SELECT j FROM composite ORDER BY j;