Fix a number of encoding issues when evaluating expressions with the evalengine #13509

dbussink · 2023-07-15T15:32:03Z

As described in #13493 we have various bugs where we transcode inputs incorrectly and where we lack collation information in the results returned.

The changes here fix a number of things:

Ensure that we always return collation information for querypb.Field instances. This also updates a lot of the static mocked inputs to ensure that they match what real queries would return. Many of the changes associated with this part of the fixes is ensuring the mocks are expectations are updated properly.
Introduce an IntroduceExpr in the evalengine. One of the issues identified is that we didn't correctly handle hex escaped values and we would never see them being unescaped if a charset introducer was used. The cause of this is that we directly would change the collation information on the expression. This is wrong in the case of a HexNum or HexVal, since we loose information we need to transcode those. We could work around this for the AST evaluator, but the compiler couldn't be fixed as the real underlying value was not available with the actual hex encoded value. By introducing a new expression, we can also now properly compile this.
No flags information was sent along with evaluated results. This is similar to the collation information, although usually not as important for clients. We opted here to fix this nonetheless and match MySQL as closely as possible.
Introduce a collations.SystemCollation to use consistently for all internal table / column names information. It was using mostly the constant for utf8mb3 or no information at all which would be problematic as it means we woulnd't know what encoding it was.
Convert outputs to the connection collation / charset. This was entirely missing from Vitess but is behavior that MySQL has. If you read from say a latin1 encoded column with a connection charset of utf8mb4, the value is converted before it's sent over the wire to utf8mb4. This fix also applies for the evalengine tests where we can now test also non UTF-8 compatible encodings, fixing a bunch of todos. This uncovered some other small bugs in the evalengine where we were converting things wrong.
The rowstreamer would return collation information from the result set, but that is now wrong because of the above conversion fixes. This means we need to use the actual fields information which we already have available to see the proper collation. We can copy all the attributes for the PK column.
To be explicit, it includes a rename from collations.CollationUtf8ID to collations.CollationUtf8mb3ID to be explicit about this collation name and match how MySQL is also changing this to be explicit.
Refactor all cases of NewBindVar and NewColumn to require explicitly the type and collation information. This way we are explicit also at the call site with what information we have and we always initialize it correctly, also if we don't know the information.
Pass through additional type information in the planbuilder. This ensures we now know the proper type for more cases, avoiding the need for weight_string and it allows for better printing of collation debug information or not.

Related Issue(s)

Fixes #13493

Checklist

"Backport to:" labels have been added if this change should be back-ported
Tests were added or are not required
Did the new or modified tests pass consistently locally and on the CI
Documentation was added or is not required

The logic here was wrong and we were always starting from the start of slice if an existing buffer was passed in to append to. Instead we need to actually append from the end of the slice. Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

As described in vitessio#13493 we have various bugs where we transcode inputs incorrectly and where we lack collation information in the results returned. The changes here fix a number of things: - Ensure that we always return collation information for querypb.Field instances. This also updates a lot of the static mocked inputs to ensure that they match what real queries would return. Many of the changes associated with this part of the fixes is ensuring the mocks are expectations are updated properly. - Introduce an IntroduceExpr in the evalengine. One of the issues identified is that we didn't correctly handle hex escaped values and we would never see them being unescaped if a charset introducer was used. The cause of this is that we directly would change the collation information on the expression. This is wrong in the case of a HexNum or HexVal, since we loose information we need to transcode those. We could work around this for the AST evaluator, but the compiler couldn't be fixed as the real underlying value was not available with the actual hex encoded value. By introducing a new expression, we can also now properly compile this. - No flags information was sent along with evaluated results. This is similar to the collation information, although usually not as important for clients. We opted here to fix this nonetheless and match MySQL as closely as possible. - Introduce a `collations.SystemCollation` to use consistently for all internal table / column names information. It was using mostly the constant for utf8mb3 or no information at all which would be problematic as it means we woulnd't know what encoding it was. - Convert outputs to the connection collation / charset. This was entirely missing from Vitess but is behavior that MySQL has. If you read from say a `latin1` encoded column with a connection charset of `utf8mb4`, the value is converted before it's sent over the wire to `utf8mb4`. This fix also applies for the `evalengine` tests where we can now test also non UTF-8 compatible encodings, fixing a bunch of todos. This uncovered some other small bugs in the `evalengine` where we were converting things wrong. - The rowstreamer would return collation information from the result set, but that is now wrong because of the above conversion fixes. This means we need to use the actual fields information which we already have available to see the proper collation. We can copy all the attributes for the PK column. - To be explicit, it includes a rename from `collations.CollationUtf8ID` to `collations.CollationUtf8mb3ID` to be explicit about this collation name and match how MySQL is also changing this to be explicit. Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

This removes the runtime regexp compilation as that's not necessary. It also normalizes the casing to match MySQL to upcase things and adds a leading `0` if needed. We move the helpers for this to a new utility package. Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

This way we can ensure we always initialize these with the proper explicit typing information. Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

We know this value always based on whether the type is -1 or a valid value, so we don't need the additional boolean value here. Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

With the type information we can better decide if we need to print the collation change or not, since it's only needed for textual columns. This also fixes a number of cases where we used to use the weight_string but we no longer need to since we now pass through the correct type information in more cases. Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

go/mysql/hex/hex.go

systay · 2023-07-17T14:39:50Z

go/test/endtoend/vtgate/queries/orderby/without_schematracker/orderby_test.go

@@ -54,5 +54,5 @@ func TestSimpleOrderBy(t *testing.T) {

 mcmp.Exec("insert into user(id, name) values (0,'Apa'),(1,'Banan'),(3,'Ceasar'),(4,'David')")
 mcmp.AssertMatches(`SELECT name FROM user WHERE id in (0,4) ORDER BY name ASC`,
- `[[VARCHAR("Apa")] [VARCHAR("David)]]`)
+ `[[VARCHAR("Apa")] [VARCHAR("David")]]`)


hmmm... how did this ever pass!?

may be it is not part of the CI run. should check in config.json

Looks to me like it's not running. In test/config.json we do run:

"vtgate_queries_orderby": { "File": "unused.go", "Args": ["vitess.io/vitess/go/test/endtoend/vtgate/queries/orderby", "-timeout", "20m"], "Command": [], "Manual": false, "Shard": "vtgate_queries", "RetryMax": 2, "Tags": ["upgrade_downgrade_query_serving_queries"] },

but we do not run "vitess.io/vitess/go/test/endtoend/vtgate/queries/orderby/without_schematracker", which is a different path.

dbussink · 2023-07-17T14:36:46Z

go/mysql/binlog/binlog_json_test.go

 },
 {
 name: `opaque blob [2 202 254]`,
 data: []byte{15, 252, 2, 202, 254},
- expected: `CAST(x'02cafe' as JSON)`,
+ expected: `CAST(x'02CAFE' as JSON)`,


We're now consistent with MySQL which upcases by default for hex literals.

dbussink · 2023-07-17T14:37:33Z

go/mysql/collations/charset/convert.go

@@ -33,6 +33,7 @@ func convertFastFromUTF8(dst []byte, dstCharset Charset, src []byte) ([]byte, er
 if dst == nil {
 dst = make([]byte, len(src)*3)
 } else {
+ nDst = len(dst)


This one and the other changes fix bugs when appending to an existing buffer. The additional evalengine test cases cover this behavior.

dbussink · 2023-07-17T14:37:51Z

go/mysql/collations/env.go

@@ -194,7 +194,7 @@ func makeEnv(version collver) *Environment {
 // A few interesting character set values.
 // See http://dev.mysql.com/doc/internals/en/character-set.html#packet-Protocol::CharacterSet
 const (
- CollationUtf8ID  = 33
+ CollationUtf8mb3ID = 33


As mentioned, rename for explicitness.

dbussink · 2023-07-17T14:38:18Z

go/mysql/hex/hex.go

+
+const hextable = "0123456789ABCDEF"
+
+func EncodeBytes(src []byte) []byte {


These have been moved since we now used them in two places.

dbussink · 2023-07-17T14:39:30Z

go/test/endtoend/vtgate/queries/orderby/without_schematracker/orderby_test.go

@@ -54,5 +54,5 @@ func TestSimpleOrderBy(t *testing.T) {

 mcmp.Exec("insert into user(id, name) values (0,'Apa'),(1,'Banan'),(3,'Ceasar'),(4,'David')")
 mcmp.AssertMatches(`SELECT name FROM user WHERE id in (0,4) ORDER BY name ASC`,
- `[[VARCHAR("Apa")] [VARCHAR("David)]]`)
+ `[[VARCHAR("Apa")] [VARCHAR("David")]]`)


This was a test we probably are not running? Not sure how this could have been passing at all. Failed when running locally.

Looks to me like it's not running. In test/config.json we do run:

"vtgate_queries_orderby": { "File": "unused.go", "Args": ["vitess.io/vitess/go/test/endtoend/vtgate/queries/orderby", "-timeout", "20m"], "Command": [], "Manual": false, "Shard": "vtgate_queries", "RetryMax": 2, "Tags": ["upgrade_downgrade_query_serving_queries"] },

but we do not run "vitess.io/vitess/go/test/endtoend/vtgate/queries/orderby/without_schematracker", which is a different path.

dbussink · 2023-07-17T14:46:50Z

go/vt/vtgate/engine/route.go

+
+ if obp.Type != -1 && obp.CollationID == collations.Unknown {
+ panic("OrderByParams: collationID is unknown but type is not unknown")
+ }


Oops, this was just for debugging, need to remove this. Will do that in a bit, but doesn't have to block reviews.

dbussink · 2023-07-17T14:50:14Z

go/vt/vtgate/planbuilder/expression_converter.go

@@ -63,8 +63,7 @@ func booleanValues(astExpr sqlparser.Expr) evalengine.Expr {
 func identifierAsStringValue(astExpr sqlparser.Expr) evalengine.Expr {
 colName, isColName := astExpr.(*sqlparser.ColName)
 if isColName {
- // TODO@collations: proper collation for column name


Yay, a fixed TODO!

dbussink · 2023-07-17T14:51:27Z

go/vt/vttablet/tabletserver/vstreamer/rowstreamer.go

+ Name: rs.plan.Table.Fields[pk].Name,
+ Type: rs.plan.Table.Fields[pk].Type,
+ Charset: rs.plan.Table.Fields[pk].Charset,
+ Flags: rs.plan.Table.Fields[pk].Flags,


Using the schema config ensures that the PK columns actually have the same type information as the schema column information.

dbussink · 2023-07-17T14:52:14Z

go/vt/vtgate/semantics/semantic_state.go

- }
- return collations.Unknown
-}
-


Everything now uses TypeForExpr since we always want both type and collation.

dbussink · 2023-07-17T14:53:50Z

go/vt/vtgate/evalengine/translate_test.go

- {"weight_string('foobar')", ok(`WEIGHT_STRING(VARCHAR("foobar"))`), ok(`VARBINARY("\x00F\x00O\x00O\x00B\x00A\x00R")`)},
- {"weight_string('foobar' as char(12))", ok(`WEIGHT_STRING(VARCHAR("foobar") AS CHAR(12))`), ok(`VARBINARY("\x00F\x00O\x00O\x00B\x00A\x00R\x00 \x00 \x00 \x00 \x00 \x00 ")`)},
+ {"weight_string('foobar')", ok(`WEIGHT_STRING(VARCHAR("foobar"))`), ok("VARBINARY(\"\\x1c\\xe5\\x1d\\xdd\\x1d\\xdd\\x1c`\\x1cG\\x1e3\")")},
+ {"weight_string('foobar' as char(12))", ok(`WEIGHT_STRING(VARCHAR("foobar") AS CHAR(12))`), ok("VARBINARY(\"\\x1c\\xe5\\x1d\\xdd\\x1d\\xdd\\x1c`\\x1cG\\x1e3\")")},


By using the default collation for the tests here, this output actually now also matches MySQL which it didn't before for the default settings (when using utf8mb4).

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

shlomi-noach

This is out of my comfort zone. Overall looks good to me with all the tests. Added a few comments, but then at some point blanked out and did not complete the full change review.

shlomi-noach · 2023-07-18T07:28:11Z

go/mysql/schema.go

@@ -111,7 +111,7 @@ var BaseShowTablesFields = []*querypb.Field{{
 Database: "information_schema",
 OrgName: "TABLE_NAME",
 ColumnLength: 192,
- Charset: collations.CollationUtf8ID,
+ Charset: uint32(collations.SystemCollation.Collation),


I'm just curious why the field name is called Charset and gets a value of a collation.

@shlomi-noach That's because of MySQL 🤷. MySQL calls this character set in their protocol documentation, but really what you set is a collation value (limited by 8 bits though, so not all possible collations can be expressed). See also https://dev.mysql.com/doc/dev/mysql-server/latest/page_protocol_basic_character_set.html#a_protocol_character_set which some that same name confusion.

haha ok then.

shlomi-noach · 2023-07-18T07:31:11Z

go/vt/sqlparser/normalizer.go

@@ -352,24 +353,31 @@ func SQLToBindvar(node SQLNode) *querypb.BindVariable {
 case DecimalVal:
 v, err = sqltypes.NewValue(sqltypes.Decimal, node.Bytes())
 case HexNum:
- v, err = sqltypes.NewValue(sqltypes.HexNum, node.Bytes())
+ buf := make([]byte, 0, len(node.Bytes()))
+ buf = append(buf, "0x"...)


I think this is the first time I see a string literal ellipsis in use.

go/vt/vtexplain/testdata/multi-output/selectsharded-output.txt

shlomi-noach · 2023-07-18T07:34:03Z

go/vt/vtgate/engine/delete_test.go

@@ -121,7 +122,7 @@ func TestDeleteEqualMultiCol(t *testing.T) {
 })

 // Failure case
- expr := evalengine.NewBindVar("aa")
+ expr := evalengine.NewBindVar("aa", -1, collations.CollationBinaryID)


Just thinking if there should be helper functions for the common use cases, like perhaps here. Typing -1, collations.CollationBinaryID feels like requires some deeper knowledge.

I don't think we should have helpers for this, I think we should explicitly write out that we have missing type information in these cases explicitly. Having a helper kinda hides that and the way the code was structured before allowed creating objects that didn't have all things set. That was a significant contributing factor in what caused this bug in the first place. So hence me opting for being explicit and verbose everywhere.

go/vt/vtgate/engine/distinct_test.go

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

go/vt/vtgate/planbuilder/operator_transformers.go

systay · 2023-07-18T14:54:59Z

go/vt/vtgate/planbuilder/testdata/info_schema57_cases.json

- "18: binary",
- "(19:31)",
- "(20:32)"
+ "0: utf8mb4_0900_ai_ci",


this is how happy this makes me

systay

Very nice! A significant step forward for our runtime ❤️

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

frouioui · 2023-07-18T16:35:09Z

go/vt/vtgate/evalengine/compiler_test.go

+ expression: `CONCAT_WS("😊😂🤢", date '2000-01-01', _latin1 0xFF)`,
+ result: `VARCHAR("2000-01-01😊😂🤢ÿ")`,


…ncoding-issues Signed-off-by: Andres Taylor <andres@planetscale.com>

…n the query send down Signed-off-by: Harshit Gangal <harshit@planetscale.com>

harshit-gangal · 2023-07-19T06:57:43Z

Here the test TestSelectScatterOrderByVarChar does not have weight_string in the query but similar test with stream is still having weight_string in the query TestStreamSelectScatterOrderBy. In the second test, the column is infact an integer.
Is this a miss in the planner?

dbussink · 2023-07-19T07:36:32Z

In the second test, the column is infact an integer.
Is this a miss in the planner?

No, it looks like we're not having the schema information in the vschema. If I change this locally, it doesn't need the weight_string anymore:

diff --git i/go/vt/vtgate/testdata/executorVSchema.json w/go/vt/vtgate/testdata/executorVSchema.json
index da12a3b994..38eecc1c39 100644
--- i/go/vt/vtgate/testdata/executorVSchema.json
+++ w/go/vt/vtgate/testdata/executorVSchema.json
@@ -151,6 +151,14 @@
                                "sequence": "user_seq"
                        },
                        "columns": [
+                               {
+                                       "name": "id",
+                                       "type": "INT32"
+                               },
+                               {
+                                       "name": "col",
+                                       "type": "INT32"
+                               },
                                {
                                        "name": "textcol",
                                        "type": "VARCHAR"

frouioui

Long but much appreciated PR, thank you 🙇🏻

…sions with the evalengine (#13509) (#13551) Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com> Co-authored-by: vitess-bot[bot] <108069721+vitess-bot[bot]@users.noreply.github.com>

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(vitessio#14156) * Code freeze of release-18.0 (vitessio#14131) * VTGate FK stress tests suite: improvements (vitessio#14098) * DDL execution to commit open transaction (vitessio#14110) * Summary changes for foreign keys (vitessio#14112) * Move subqueries to use the operator model (vitessio#13750) * servenv: Allow for explicit bind address (vitessio#13188) * vtorc: add detected_problems counter (vitessio#13967) * fix bad copy-paste in zkctld docgen (vitessio#14123) * VDiff: Cleanup the controller for a VDiff before deleting it (vitessio#14107) * Remove deprecated flags before `v18.0.0` (vitessio#14071) * Remove FOSSA Test from CI until we can do it in a secure way (vitessio#14119) * go/cmd/vtbackup: wait for plugins to finish initializing (vitessio#14113) * bugfix: change column name and type to json (vitessio#14093) * `vtctld`/`vtorc`: improve reparenting stats (vitessio#13723) * E2E Fuzzing testing for foreign keys (vitessio#13980) * Backup/restore: provision and restore a tablet with point-in-time recovery flags (vitessio#13964) * anonymize homedirs in generated docs (vitessio#14101) * VDiff: properly split cell values in record when using TabletPicker (vitessio#14099) * miscellaneous cobras (vitessio#14069) * Reduce network pressure on multi row insert (vitessio#14064) * [cli] cobra zookeeper (vitessio#14094) * switch casing in onlineddl subcommand help text (vitessio#14091) * Fix Fk verification and update queries to accommodate for bindVariables being NULL (vitessio#14061) * actually test vtcombo (vitessio#14095) * VDiff: Migrate client command to vtctldclient (vitessio#13976) * ci: pool-related test flakyness (vitessio#14076) * Improve the rewriter to simplify more queries (vitessio#14059) * update docgen to embed commit ID in autogenerated doc frontmatter (vitessio#14056) * [CLI] cobra lots of things (vitessio#14007) * Add VSchema DDL support for dropping sequence and auto increment (vitessio#13882) * json: Fix quoting JSON keys (vitessio#14066) * Flakes: Address TestMigrate Failures (vitessio#12866) * [cli] migrate mysqlctl and mysqlctld to cobra (vitessio#13946) * evalengine: Mark UUID() function as non-constant (vitessio#14051) * Fix cascading Delete failure while using Prepared statements (vitessio#14048) * remove query_analyzer binary and release (vitessio#14055) * go/vt/mysqlctl: instrument s3 upload time (vitessio#12500) * Add session flag for stream execute grpc api (vitessio#14046) * Endtoend: stress tests for VTGate FOREIGN KEY support (vitessio#13799) * metrics: change vtbackup_duration_by_phase to binary-valued vtbackup_phase (vitessio#12973) * TableGC: support DROP VIEW (vitessio#14020) * Support arbitrary ZooKeeper config lines (vitessio#13829) * Bump protobufjs from 7.2.3 to 7.2.5 in /web/vtadmin (vitessio#13833) * Bump tough-cookie and @cypress/request in /vitess-mixin/e2e (vitessio#13768) * Remove excessive logging in transactions (vitessio#14021) * Fix bug in `fileNameFromPosition` test helper (vitessio#13778) * MoveTables Cancel: drop denied tables on target when dropping source/target tables (vitessio#14008) * java: update to latest dependencies for grpc and protobuf (vitessio#13996) * OnlineDDL: cleanup cancelled migration artifacts; support `--retain-artifacts=<duration>` DDL strategy flag (vitessio#14029) * moved timeout test to different package (vitessio#14028) * fix: cost to include subshard opcode (vitessio#14023) * VReplication VPlayer: set foreign_key_checks on initialization (vitessio#14013) * go/cmd/vtbackup: report replication status metrics during catch-up phase (vitessio#13995) * Fix the `SELECT` query we run on the child table to verify that update is allowed on a RESTRICT constraint (vitessio#13991) * fix data race in join engine primitive olap streaming mode execution (vitessio#14012) * test: added test to check binlogs to contain the cascade events (vitessio#13970) * Fix `TestLeftJoinUsingUnsharded` and remove instability when running E2E locally (vitessio#13973) * Enable failures in `tools/e2e_test_race.sh` and fix races (vitessio#13654) * Improve release process documentation (vitessio#14000) * Make `Static Code Checks Etc` fail if the `./changelog` folder is out-of-date (vitessio#14003) * Fix foreign key plan tests expectation (vitessio#13997) * Flakes: Add recently added 'select rows_copied' query to ignore list (vitessio#13993) * Foreign key cascade: retain "for update" lock on select query plans (vitessio#13985) * Fix `NOT IN` expression used in the SET NULL for a child table on an update (vitessio#13988) * consolidate docs (vitessio#13959) * VDiff: correct handling of default source and target cells (vitessio#13969) * [cobra] vtgate and vttablet (vitessio#13943) * handle large number of predicates without timing out (vitessio#13979) * Fix missing deprecated flags in `vttablet` and `vtgate` (vitessio#13975) * wrangler,workflow/workflow: materialize from intersecting source shards based on primary vindexes (vitessio#13782) * Cache v3 (vitessio#13939) * Implement Reshard in vtctldclient (vitessio#13792) * Disallow Insert with Duplicate key update and Replace Into queries on foreign key column, set locks on fk queries (vitessio#13953) * End to end testing suite for foreign keys (vitessio#13870) * copy over existing vreplication rows copied to local counter if resuming from another tablet (vitessio#13949) * vtctldclient OnlineDDL: support `throttle`, `unthrottle` (vitessio#13916) * Change internal vindex type recommendation for integrals to xxhash (vitessio#13956) * VTOrc converts a tablet to DRAINED type if it detects errant GTIDs on it (vitessio#13873) * Fix `ApplySchema --batch-size` with ` --allow-zero-in-date` (vitessio#13951) * Tablet throttler: empty list of probes on non-leader (vitessio#13926) * VReplication: Handle SQL NULL and JSON 'null' correctly for JSON columns (vitessio#13944) * [vtctld] more cobra binaries (vitessio#13930) * Merge branch 'planetscale-fk-verify-update-planning' * [main] Upgrade the Golang version to `go1.21.1` (vitessio#13933) * update fk error messages * cascade with new value should work * small refactor - removed unused code * return verify error based on type * store the verification type * update plan output test * small refactor * feat: add code to verify valdity of ON UPDATE RESTRICT foreign keys wherever required * Rewrite `USING` to `ON` condition for joins (vitessio#13931) * test: fix tests to reflect the recent changes * feat: add code to verify update with cascade run with foreign key checks 0 and validate all the foreign keys on vtgate * add where condition to fk verify query * changed parent verification query and accordingly change the engine primitive for foreign key constraint verification * foreign key verify operator and logical * refactor: add comment explaining map in input * add support for foreign key constraint verify on update * refactor: move DML logic to sql_builder.go (vitessio#13920) * OnlineDDL: fix nil 'completed_timestamp' for cancelled migrations (vitessio#13928) * Silence 'CheckThrottler' gRPC calls (vitessio#13925) * migrate vtorc to use cobra commands (vitessio#13917) * MoveTables: allow copying all tables in a single atomic copy phase cycle (vitessio#13137) * proto: Faster clone (vitessio#13914) * Properly support ignore_nulls in CreateLookupVindex (vitessio#13913) * [staticcheck] Last few staticchecks! (vitessio#13909) * icuregex: Update to ICU 73 (vitessio#13912) * gen4: Fast aggregations (vitessio#13904) * Use correct syntax in test (vitessio#13907) * Misc Local Install improvements. (vitessio#13446) * Consolidate helper functions for working with proto3 time messages (vitessio#13905) * Add vtsql flags to vtadmin (vitessio#13674) * MoveTables: add flag to specify that routing rules should not be created when a movetables workflow is created (vitessio#13895) * [staticcheck] miscellaneous tidying (vitessio#13892) * [misc] tidy imports (vitessio#13885) * Remove duplicate ACL check in tabletserver handleHTTPConsolidations (vitessio#13876) * vtexplain: Fix passing through context for cleanup (vitessio#13900) * [staticcheck] Cleanup deprecations (vitessio#13898) * inputs method to return additional information about the input primitive (vitessio#13883) * vttablet: do not notify `vtgate` about internal tables (vitessio#13897) * Skip launchable if the Pull Request is marked as a Draft (vitessio#13886) * vtctldclient: support OnlineDDL `complete`, `launch` commands (vitessio#13896) * collations: implement collation dumping as a docker image (vitessio#13879) * sqlparser: Tablespace option is case sensitive (vitessio#13884) * Clean up deprecated slice header usage and unused code (vitessio#13880) * [misc] Delete more unused functions, tidy up dupe imports (vitessio#13878) * collations: Refactor to separate basic collation information from data (vitessio#13868) * [wrangler] cleanup unused functions (vitessio#13867) * Fix setup order to avoid races (vitessio#13871) * Add Foreign key verify constraint engine primitive (vitessio#13848) * Foreign key cascade planning for DELETE and UPDATE queries (vitessio#13823) * Fix merge conflict with new tests (vitessio#13869) * vtctldclient OnlineDDL CANCEL (vitessio#13860) * Add leak checking for vtgate tests (vitessio#13835) * Fix for "text type with an unknown/unsupported collation cannot be hashed" error (vitessio#13852) * Go 1.21 cleanups (vitessio#13862) * VTGate Buffering: Use a more accurate heuristic for determining if we're doing a reshard (vitessio#13856) * docker/bootstrap: remove --no-cache flag (vitessio#13785) * Flakes: Improve reliability of vreplication_copy_parallel test (vitessio#13857) * [main] Upgrade the Golang version to `go1.21.0` (vitessio#13853) * Fix regular expression issue in Golang Upgrade and remove `release-14.0` from target branch (vitessio#13846) * Migrates most workflows to 4 and 16 cores Large GitHub-Hosted-Runners (vitessio#13845) * [onlineddl] retry and cleanup (vitessio#13830) * Bump word-wrap from 1.2.3 to 1.2.4 in /web/vtadmin (vitessio#13569) * Bump tough-cookie from 4.1.2 to 4.1.3 in /web/vtadmin (vitessio#13767) * Skip VTAdmin build in Docker tests (vitessio#13836) * Flakes: Synchronize access to logErrStacks in vterrors (vitessio#13827) * Flakes: VReplication unit tests: reduce goroutine leakage (vitessio#13824) * Remove explicit usage of etcd v2 (api and storage) (vitessio#13791) * Add OnlineDDL show support (vitessio#13738) * VReplication: Improve MoveTables Create Error Handling (vitessio#13737) * Add 2 new metrics with tablet type labels (vitessio#13521) * Add 2 more durability policies that allow RDONLY tablets to send semi-sync ACKs (vitessio#13698) * CI: Misc test improvements to limit failures with various runners (vitessio#13825) * Flakes: empty vtdataroot before starting a new vreplication e2e test (vitessio#13803) * Fix `BackupShard` to get its options from its own flags (vitessio#13813) * Flakes: skip flaky check that ETA for a VReplication VDiff2 Progress command is in the future. (vitessio#13804) * Copy release notes for v17.0.2 and v16.0.4 (vitessio#13811) * More union merging (vitessio#13743) * Add Foreign key Cascade engine primitive (vitessio#13802) * Add support for tuple as value type (vitessio#13800) * Foreign Keys: `UPDATE` planning (vitessio#13762) * Improving random query generation for endtoend testing (vitessio#13460) * Flakes: Delete VTDATAROOT files in reparent test teardown within CI (vitessio#13793) * vtgate: fix race condition iterating tables and views from schema tracker (vitessio#13673) * Fixing `backup_pitr` flaky tests via wait-for loop on topo reads (vitessio#13781) * Do not drain tablet in incremental backup (vitessio#13773) * Address vttablet memory usage with backups to Azure Blob Service (vitessio#13770) * Run auto golang upgrade only on vitessio/vitess (vitessio#13766) * Flakes: remove non-determinism from vtctldclient MoveTables unit test (vitessio#13765) * Minor --initialize-target-sequences followups (vitessio#13758) * CI: fix onlineddl_scheduler flakiness (vitessio#13754) * VReplication: Initialize Sequence Tables Used By Tables Being Moved (vitessio#13656) * Bump docker images to `bullseye` (vitessio#13664) * Use NodeJS v18 in VTAdmin Dockerfile (vitessio#13751) * Refactor Expression and Statement Simplifier (vitessio#13636) * Foreign Keys: `DELETE` planning (vitessio#13746) * build: Allow passing in custom -ldflags (vitessio#13748) * Point in time recovery: fix cross-tablet GTID evaluation (vitessio#13555) * Cache info schema table info (vitessio#13724) * BackupShard: support incremental backup (vitessio#13522) * OnlineDDL: support @@migration_context in vtgate session. Use if non-empty (vitessio#13675) * schemadiff: add time measure test for massive schema load and diff (vitessio#13697) * Vtgate: pass 'SHOW VITESS_MIGRATIONS' to tablet's query executor (vitessio#13726) * Move UNION planning to the operators (vitessio#13450) * Fix vtcombo DBDDL plugin race condition (vitessio#13117) * Foreign Keys: `INSERT` planning (vitessio#13676) * go/vt/vitessdriver: implement driver.{Connector,DriverContext} (vitessio#13704) * Backup: safe compressor/decompressor closure (vitessio#13668) * sqlparser: Track if original default value is a literal (vitessio#13730) * Solve RevertMigration.Comment read/write concurrency issue (vitessio#13700) * `ApplySchema`: support `--batch-size` flag in 'direct' strategy (vitessio#13693) * Fix closed channel `panic` in Online DDL cutover (vitessio#13729) * mysql: Refactor dependencies (vitessio#13688) * vtgate tablet gateway buffering: don't shutdown if not initialized (vitessio#13695) * [OnlineDDL] add label so break works as intended (vitessio#13691) * fastparse: Fix bug in overflow detection (vitessio#13702) * Refactor code to remove `evalengine` as a dependency of `VTOrc` (vitessio#13642) * `txthrottler`: remove `txThrottlerConfig` struct, rely on `tabletenv` (vitessio#13624) * [vtctldclient] flags need to be defined to be deprecated (vitessio#13681) * Add dry-run/monitoring-only mode for TxThrottler (vitessio#13604) * Enhancing VTGate buffering for MoveTables and Shard by Shard Migration (vitessio#13507) * Improvements to PRS (vitessio#13623) * Errant GTID Metrics Refactor (vitessio#13670) * Improve logging and renaming PrimaryTermStartTimestamp in vttablets (vitessio#13625) * Fix a couple of logs in VTOrc (vitessio#13667) * Throttler: exempt apps via `UpdateThrottlerConfig --throttle-app-exempt` (vitessio#13666) * Tablet throttler: inter-checks via gRPC (vitessio#13514) * Reroute 'ALTER VITESS_MIGRATION ... THROTTLE ...' through topo (vitessio#13511) * Build foreign key definition in schema tracker (vitessio#13657) * evalengine: Fix JSON weight string computation (vitessio#13669) * Throttler: verify deprecated flags are still allowed (vitessio#13615) * Backup & Restore: vtctldclient to support PITR flags (vitessio#13513) * `UpdateThrottlerConfig --unthrottle-app ...` (vitessio#13494) * tx throttler: healthcheck all cells if `--tx-throttler-healthcheck-cells` is undefined (vitessio#12477) * evalengine: Improve weight string support (vitessio#13658) * mysqlctl: Reduce logging for running commands (vitessio#13659) * Add v15.0.4, v16.0.3, and v17.0.1 changelogs (vitessio#13661) * [viper WatchConfig] platform-specific write to ensure callback fires exactly once (vitessio#13627) * go/mysql: switch to new API for x/exp/slices.SortFunc (vitessio#13644) * Per workload TxThrottler metrics (vitessio#13526) * VReplication: Make Source Tablet Selection More Robust (vitessio#13582) * Update known issues in `v16.x` and `v17.0.0` (vitessio#13618) * Augment VTOrc to also store the shard records and use it to better judge Primary recoveries (vitessio#13587) * icuregex: Lazy load ICU data into memory (vitessio#13640) * Ensure to call `servenv.Init` when needed (vitessio#13638) * GetSchema: limit concurrent operations (vitessio#13617) * check keyspace snapshot time if none specified for backup restores (vitessio#13557) * vtgate buffering logic: remove the deprecated healthcheck based implementation (vitessio#13584) * Fix type comparisons for Nullsafe* functions (vitessio#13605) * Reintroduce `TestReadOutdatedInstanceKeys` with debugging information (vitessio#13562) * mysqlctl: Remove noisy log line (vitessio#13599) * Vtctldclient MoveTables (vitessio#13015) * txthrottler: add metrics for topoWatcher and healthCheckStreamer (vitessio#13153) * Reduce usages of old horizon planning fallback (vitessio#13595) * Throttler: reintroduce deprecated flags so that deprecation actually works (vitessio#13597) * Incremental backup & recovery: restore-to-timestamp (vitessio#13270) * Fix potential panics due to "Fail in goroutine after test completed" (vitessio#13596) * ignore all error for views in engine reload (vitessio#13590) * vtgate table schema tracking to use GetSchema rpc (vitessio#13544) * MoveTables sequence e2e tests: change terminology to use basic vs simple everywhere for partial movetables workflows (vitessio#13435) * Skip VTAdmin build in more places (vitessio#13588) * Fix show character set (vitessio#13565) * Remove unused chromedriver (vitessio#13573) * fix TestQueryTimeoutWithTables flaky test (vitessio#13579) * CI: Fix make build related issues (vitessio#13583) * docker/mini: remove refs to orc configs (vitessio#13495) * stats: use *time.Ticker instead of time.After() (vitessio#13492) * VReplication: Ensure ROW events are sent within a transaction (vitessio#13547) * Add a `keyspace` configuration in the `vschema` for foreign key mode (vitessio#13553) * vreplication: Move to use collations package (vitessio#13566) * Flaky tests: Fix race in memory topo (vitessio#13559) * Fix flaky vtgate test TestInconsistentStateDetectedBuffering (vitessio#13560) * Flaky tests: Fix wrangler tests (vitessio#13568) * Optimize `make build` in `test.go` and in CI (vitessio#13567) * Unset the PREFIX environment variable when building VTAdmin (vitessio#13554) * vtctldclient: Add missing new backup option (vitessio#13543) * Skip flaky test `TestReadOutdatedInstanceKeys` (vitessio#13561) * Fix a number of encoding issues when evaluating expressions with the evalengine (vitessio#13509) * Deflake `TestPlannedReparentShardPromoteReplicaFail` (vitessio#13548) * [vipersync] deflake TestWatchConfig (vitessio#13545) * vtgate v3 planner removal (vitessio#13458) * Fix flakiness in VTOrc tests (vitessio#13489) * Replace deprecated `github.com/golang/mock` with `go.uber.org/mock` (vitessio#13512) * Fix dependencies in docker build script (vitessio#13520) * fix docgen for subcommands (vitessio#13518) * Merge pull request vitessio#13515 from planetscale/partial-movetables-traffic-status * Correct unit test * docker/k8s: add bookworm builds (vitessio#13436) * ignore ongoing backfill vindex from routing selection (vitessio#13505) * Adjust function names for improved clarity * More fixes related to partial traffic handling * Ignore unrelated shards in partial movetables workflow status * Better handling of vreplication setState() failure (vitessio#13488) * flags: Remove hardcoded runner paths (vitessio#13482) * viperutil: Remove potential cross site reflecting issue (vitessio#13483) * skip flaky test (vitessio#13501) * feat: remove --disable_active_reparents flag in vttablet-up.sh (vitessio#13504) * fix: error.as method usage to send pointer to the reference type expected. (vitessio#13496) * Fix `TestGatewayBufferingWhileReparenting` flakiness (vitessio#13469) * ApplySchema: deprecate '--allow_long_unavailability' flag (vitessio#10717) * Incremental backup: accept GTID position without 'MySQL56/' flavor prefix (vitessio#13474) * Deprecating and removing tablet throttler CLI flags and tests (vitessio#13246) * Online DDL: improved row estimation via ANALYE TABLE with --analyze-table strategy flag (vitessio#13352) * Tablet throttler: throttled app configuration via `vtctl UpdateThrottlerConfig` (vitessio#13351) * added no-commit-collection option to launchable record build command (vitessio#13490) * Fix remote VersionString API (vitessio#13484) * Fix logging by omitting the host and port in `SetReadOnly` (vitessio#13470) * `vtctl OnlineDDL`: complete command set (vitessio#12963) * Random selection of keyspace based on available tablet (vitessio#13359) * Improve and Fix Distinct Aggregation planner (vitessio#13466) * Fix ubi8.arm64.mysql80 build package mirrorserver error (vitessio#13431) * backup: Allow for upgrade safe backups (vitessio#13449) * Merge pull request vitessio#13468 from timvaillancourt/examples-compose-fix-consul-tag * Update a number of dependencies (vitessio#13031) * Enable Tcp keep alive and provide keep alive period setting (vitessio#13434) * rm mistaken commit * Update docker-compose.beginners.yml too * compose: fix `consul:latest` error * Add support for kill statement (vitessio#13371) * feat: remove excessive logging (vitessio#13459) * schema.Reload(): ignore column reading errors for views only, error for tables (vitessio#13442) * [CI] deflake viper sync tests (vitessio#13185) * mysql: introduce icuregex package (vitessio#13391) * Fix `Fakemysqldaemon` to store the host and port after `SetReplicationSource` call (vitessio#13439) * Examples: only terminate vtadmin if it was started (vitessio#13433) * [main] Upgrade-Downgrade Fix: Schema-initialization stuck on semi-sync ACKs while upgrading (vitessio#13411) (vitessio#13440) * Move more horizon planning to the operators (vitessio#13412) * Refactor backup_pitr into two distinct CI tests: builtin vs Xtrabackup (vitessio#13395) * Improve VTOrc logging statements, now that we have alias as a field (vitessio#13428) * vtorc: Cleanup more unused code (vitessio#13354) * VReplication Workflows: make sequence tables follow routing rules (vitessio#13238) * Ignore error while reading table data in Schema.Engine reload (vitessio#13421) * Improve time taken to run the examples by optimizing `vtadmin` build (vitessio#13262) * vtctl,vindexes: logs warnings and export stat for unknown vindex params (vitessio#13322) * Add end-of-life documentation + re-organize internal documentation (vitessio#13401) * Adding random query generation for endtoend testing of the Gen4 planner (vitessio#13260) * Aggregation engine refactor (vitessio#13378) * Deflake `TestQueryTimeoutWithDual` test (vitessio#13405) * Optimize release notes generation to use GitHub Milestones (vitessio#13398) * feat: don't run any reparent commands if the host is empty (vitessio#13396) * `vttestserver`: persist vschema changes in `--persistent_mode` (vitessio#13065) * Tablet throttler: only start watching SrvKeyspace once it's confirmed to exist (vitessio#13384) * Support views in BaseShowTablesWithSizes for MySQL 8.0 (vitessio#13394) * Fix incorrect output in release scripts (vitessio#13385) * Adds support for ANY_VALUE (vitessio#13342) * BaseShowTablesWithSizes: optimize MySQL 8.0 query (vitessio#13375) * Forward port of release notes changes from v17.0.0 GA (vitessio#13370) * feat: add timestamp to vtorc debug page (vitessio#13379) * Prevent resetting replication every time we set replication source (vitessio#13377) * Local example 101: idempotent on existing clusters (vitessio#13373) * governance: clean up language, link steering doc from first occurrence instead of from a random occurrence (vitessio#13337) * Add group_concat aggregation support (vitessio#13331) * Improve VTOrc failure detection to be able to better handle dead primary failures (vitessio#13190) * Improve lock action string (vitessio#13355) * Add RestorePosition and RestoredBackupTime as metrics to vttablet (vitessio#13339) * update link for reparenting guide (vitessio#13350) * Handle inconsistent state error in query buffering (vitessio#13333) * mysqlctl: Move more to use built in MySQL client (vitessio#13338) * VTOrc: Update the primary key for all the tables from `hostname, port` to `alias` (vitessio#13243) * docker/k8s: Cleanup done TODO (vitessio#13347) * bug: don't always wrap aggregation in coalesce (vitessio#13348) * Vttablet schema tracking: Fix _vt.schema_version corruption (vitessio#13045) * bugfixes: collection of fixes to bugs found while fuzzing (vitessio#13332) * Remove CI endtoend test for VReplication copy throttling (vitessio#13343) * Use sqlparser for all dynamic query building in VDiff2 (vitessio#13319) * txthrottler: verify config at vttablet startup, consolidate funcs (vitessio#13115) * mysqlctl: Use DBA connection for schema operations (vitessio#13178) * Bug fix: SQL queries erroring with message `unknown aggregation random` (vitessio#13330) * Support complex aggregation in Gen4's Operators (vitessio#13326) * [VTAdmin] Upgrade to use node 18.16.0 (vitessio#13288) * Cleanup unused Dockerfile entries (vitessio#13327) * Add metric for showing the errant GTIDs in VTOrc (vitessio#13281) * vtgate planner: HAVING in the new operator horizon planner (vitessio#13289) * vtgr: Remove deprecated vtgr (vitessio#13308) * mysqlctl: Correctly encode database and table names (vitessio#13312) * sqlparser: Add support for TIMESTAMPADD (vitessio#13314) * Refactor and add a comment to schema initialisation code (vitessio#13309) * Release notes for 17.0.0-rc2 (vitessio#13306) * remove os.Exit (vitessio#13310) * k8stopo: Remove the deprecated Kubernetes topo (vitessio#13303) * vindexes: return unknown params (vitessio#12951) * Operator planner refactor (vitessio#13294) * Deprecate VTGR (vitessio#13301) * k8stopo: Include deprecation warning (vitessio#13299) * [main] Upgrade the Golang version to `go1.20.5` (vitessio#13256) * evalengine: implement date/time math (vitessio#13274) * increase size of reparent_journal columns (vitessio#13287) * VReplication: Fix VDiff2 DeleteByUUID Query (vitessio#13255) * Miscellaneous code modifications based on observations made while doing a code walkthrough (vitessio#12873) * Set the number of threads for release notes generation with a flag (vitessio#13273) * Fix and Make aggregation planner handle aggregation functions better (vitessio#13228) * fix: ShardedRouting clone to clone slice of reference correctly (vitessio#13265) * Remove viper warnings from local examples (vitessio#13234) * Add flag to VTOrc to enable/disable its ability to run ERS (vitessio#13259) * Remove `out.txt` and add `release-17.0` to go upgrade automation (vitessio#13261) * build(deps-dev): bump vite from 4.2.1 to 4.2.3 in /web/vtadmin (vitessio#13240) * Copy v17.0.0-rc changelog to main (vitessio#13248) * fix: GetField to use existing session for query (vitessio#13219) * Fix flakiness in `TestDeadPrimaryRecoversImmediately` (vitessio#13232) * Augmenting the `GetSchema` RPC to also work for `Table` and `All` type of input (vitessio#13197) * Incremental backup and point in time recovery for XtraBackup (vitessio#13156) * VReplication: More intelligently manage vschema table entries on unsharded targets (vitessio#13220) * Use $hostname in vtadmin script as other scripts do (vitessio#13231) * Tablet throttler: throttler-config-via-topo defaults 'true', deprecation message for old flags (vitessio#13130) * [ci] add generator for templated flag testdata (vitessio#13150) * schemadiff: validating case-sensitive view names (vitessio#13208) * Add security audit report (vitessio#13221) * gentler warning message on config-not-found (vitessio#13215) * Bump the vitess version on main (vitessio#13212) * Handle DISTINCT with the new operators (vitessio#13201) * Gen4: move insert planner to gen4 (vitessio#12934)

dbussink added Type: Bug Component: Build/CI Component: Query Serving Component: Evalengine changes to the evaluation engine Backport to: release-17.0 labels Jul 15, 2023

github-actions bot added this to the v18.0.0 milestone Jul 15, 2023

dbussink force-pushed the dbussink/fix-many-encoding-issues branch from 93c4fb0 to 5d68661 Compare July 15, 2023 19:55

dbussink added 6 commits July 17, 2023 10:47

collations: Fix appending to initial slice

e40a738

The logic here was wrong and we were always starting from the start of slice if an existing buffer was passed in to append to. Instead we need to actually append from the end of the slice. Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

Fix tests

d2c421f

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

Use explicit types and collations for columns and bindvars

41ab596

This way we can ensure we always initialize these with the proper explicit typing information. Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

evalengine: Cleanup unneeded flag

8da8cdf

We know this value always based on whether the type is -1 or a valid value, so we don't need the additional boolean value here. Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

dbussink force-pushed the dbussink/fix-many-encoding-issues branch from 5d68661 to c57ec9c Compare July 17, 2023 12:04

dbussink force-pushed the dbussink/fix-many-encoding-issues branch from c57ec9c to cd02256 Compare July 17, 2023 12:09

dbussink added 2 commits July 17, 2023 14:36

vtexplain: Update test output for improved query support

2aee93a

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

Fix another test issue

12d3cc9

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

dbussink marked this pull request as ready for review July 17, 2023 14:28

dbussink requested review from deepthi, mattlord, rohit-nayak-ps, harshit-gangal, systay, shlomi-noach, GuptaManan100, frouioui, arthurschreiber, notfelineit and ajm188 as code owners July 17, 2023 14:28

systay reviewed Jul 17, 2023

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systay reviewed Jul 17, 2023

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dbussink commented Jul 17, 2023

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Fix license and do cleanup

e382a3f

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

shlomi-noach reviewed Jul 18, 2023

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Add constant for sqltypes.Unknown

f780e60

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

dbussink requested a review from vmg as a code owner July 18, 2023 10:51

systay reviewed Jul 18, 2023

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go/vt/vtgate/planbuilder/operator_transformers.go Outdated Show resolved Hide resolved

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systay approved these changes Jul 18, 2023

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Small code cleanup

7afedbf

Signed-off-by: Dirkjan Bussink <d.bussink@gmail.com>

frouioui reviewed Jul 18, 2023

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systay and others added 2 commits July 18, 2023 20:51

Merge remote-tracking branch 'upstream/main' into dbussink/fix-many-e…

67b164f

…ncoding-issues Signed-off-by: Andres Taylor <andres@planetscale.com>

fix fake test result to not have weight_string as it is not present i…

afcebb2

…n the query send down Signed-off-by: Harshit Gangal <harshit@planetscale.com>

frouioui approved these changes Jul 19, 2023

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dbussink merged commit 694ffe8 into vitessio:main Jul 19, 2023
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dbussink deleted the dbussink/fix-many-encoding-issues branch July 19, 2023 08:29

vitess-bot bot mentioned this pull request Jul 19, 2023

[release-17.0] Fix a number of encoding issues when evaluating expressions with the evalengine (#13509) #13551

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jjpersch mentioned this pull request Sep 21, 2023

Add monetate_crc32 multi-column vindex. monetate/vitess#1

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Fix a number of encoding issues when evaluating expressions with the evalengine #13509

Fix a number of encoding issues when evaluating expressions with the evalengine #13509

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		const hextable = "0123456789ABCDEF"

		func EncodeBytes(src []byte) []byte {

		expression: `CONCAT_WS("😊😂🤢", date '2000-01-01', _latin1 0xFF)`,
		result: `VARCHAR("2000-01-01😊😂🤢ÿ")`,

Fix a number of encoding issues when evaluating expressions with the evalengine #13509

Fix a number of encoding issues when evaluating expressions with the evalengine #13509

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