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Fix regression where inserts into reference tables with a different name on sharded keyspaces were not routed correctly. #15796

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merged 8 commits into from
May 7, 2024
Merged

Fix regression where inserts into reference tables with a different name on sharded keyspaces were not routed correctly. #15796

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fa9e594
Add unit test cases for reference table
rohit-nayak-ps Apr 25, 2024
b29862d
Change expectation for bindvars
rohit-nayak-ps Apr 25, 2024
5e23ca9
Add unit test for reference table cases
rohit-nayak-ps Apr 25, 2024
2016aee
Make modifications to insert for rewriting reference tables. There is…
rohit-nayak-ps Apr 25, 2024
745463b
Add e2e test for reference tables
rohit-nayak-ps Apr 25, 2024
0eb543a
Address review comments. Merge newly added tests into existing ones
rohit-nayak-ps Apr 26, 2024
18ef23e
Fix logic for modifying the target being inserted into
rohit-nayak-ps May 1, 2024
a7e2c2f
Add license header
rohit-nayak-ps May 6, 2024
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166 changes: 166 additions & 0 deletions go/test/endtoend/vreplication/reference_test.go
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@@ -0,0 +1,166 @@
/*
Copyright 2024 The Vitess Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package vreplication
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import (
"testing"

"github.com/stretchr/testify/require"
)

const (
uksSchema = `
create table product (id int, mfg_id int, cat_id int, name varchar(128), primary key(id));
create table cat (id int, name varchar(128), primary key(id));
create table mfg (id int, name varchar(128), primary key(id));
`
sksSchema = `
create table product (id int, mfg_id int, cat_id int, name varchar(128), primary key(id));
create table cat (id int, name varchar(128), primary key(id));
create table mfg2 (id int, name varchar(128), primary key(id));
`
uksVSchema = `
{
"sharded": false,
"tables": {
"product": {},
"cat": {},
"mfg": {}
}
}`

sksVSchema = `
{
"sharded": true,
"tables": {
"product": {
"column_vindexes": [
{
"column": "id",
"name": "hash"
}
]
},
"cat": {
"type": "reference",
"source": "uks.cat"
},
"mfg2": {
"type": "reference",
"source": "uks.mfg"
}
},
"vindexes": {
"hash": {
"type": "hash"
}
}
}`
materializeCatSpec = `
{
"workflow": "wfCat",
"source_keyspace": "uks",
"target_keyspace": "sks",
"table_settings": [ {"target_table": "cat", "source_expression": "select id, name from cat" }]
}`
materializeMfgSpec = `
{
"workflow": "wfMfg",
"source_keyspace": "uks",
"target_keyspace": "sks",
"table_settings": [ {"target_table": "mfg2", "source_expression": "select id, name from mfg" }]
}`
initializeTables = `
use uks;
insert into product values (1, 1, 1, 'p1');
insert into product values (2, 2, 2, 'p2');
insert into product values (3, 3, 3, 'p3');
insert into cat values (1, 'c1');
insert into cat values (2, 'c2');
insert into cat values (3, 'c3');
insert into mfg values (1, 'm1');
insert into mfg values (2, 'm2');
insert into mfg values (3, 'm3');
insert into mfg values (4, 'm4');
`
)

func TestReferenceTableMaterializationAndRouting(t *testing.T) {
var err error
defaultCellName := "zone1"
vc = NewVitessCluster(t, nil)
defer vc.TearDown()
defaultReplicas = 0 // because of CI resource constraints we can only run this test with primary tablets
defer func() { defaultReplicas = 1 }()
uks := "uks"
sks := "sks"

defaultCell := vc.Cells[defaultCellName]
vc.AddKeyspace(t, []*Cell{defaultCell}, uks, "0", uksVSchema, uksSchema, defaultReplicas, defaultRdonly, 100, nil)
vc.AddKeyspace(t, []*Cell{defaultCell}, sks, "-80,80-", sksVSchema, sksSchema, defaultReplicas, defaultRdonly, 200, nil)
vtgateConn := getConnection(t, vc.ClusterConfig.hostname, vc.ClusterConfig.vtgateMySQLPort)

verifyClusterHealth(t, vc)
_, _, err = vtgateConn.ExecuteFetchMulti(initializeTables, 0, false)
require.NoError(t, err)
vtgateConn.Close()

materialize(t, materializeCatSpec, false)
materialize(t, materializeMfgSpec, false)

tabDash80 := vc.getPrimaryTablet(t, sks, "-80")
tab80Dash := vc.getPrimaryTablet(t, sks, "80-")
catchup(t, tabDash80, "wfCat", "Materialize Category")
catchup(t, tab80Dash, "wfCat", "Materialize Category")
catchup(t, tabDash80, "wfMfg", "Materialize Manufacturer")
catchup(t, tab80Dash, "wfMfg", "Materialize Manufacturer")

vtgateConn = getConnection(t, vc.ClusterConfig.hostname, vc.ClusterConfig.vtgateMySQLPort)
defer vtgateConn.Close()
waitForRowCount(t, vtgateConn, sks, "cat", 3)
waitForRowCount(t, vtgateConn, sks, "mfg2", 4)

execRefQuery(t, "insert into mfg values (5, 'm5')")
execRefQuery(t, "insert into mfg2 values (6, 'm6')")
execRefQuery(t, "insert into uks.mfg values (7, 'm7')")
execRefQuery(t, "insert into sks.mfg2 values (8, 'm8')")
waitForRowCount(t, vtgateConn, uks, "mfg", 8)

execRefQuery(t, "update mfg set name = concat(name, '-updated') where id = 1")
execRefQuery(t, "update mfg2 set name = concat(name, '-updated') where id = 2")
execRefQuery(t, "update uks.mfg set name = concat(name, '-updated') where id = 3")
execRefQuery(t, "update sks.mfg2 set name = concat(name, '-updated') where id = 4")

waitForRowCount(t, vtgateConn, uks, "mfg", 8)
qr := execVtgateQuery(t, vtgateConn, "uks", "select count(*) from uks.mfg where name like '%updated%'")
require.NotNil(t, qr)
require.Equal(t, "4", qr.Rows[0][0].ToString())

execRefQuery(t, "delete from mfg where id = 5")
execRefQuery(t, "delete from mfg2 where id = 6")
execRefQuery(t, "delete from uks.mfg where id = 7")
execRefQuery(t, "delete from sks.mfg2 where id = 8")
waitForRowCount(t, vtgateConn, uks, "mfg", 4)

}

func execRefQuery(t *testing.T, query string) {
vtgateConn := getConnection(t, vc.ClusterConfig.hostname, vc.ClusterConfig.vtgateMySQLPort)
defer vtgateConn.Close()
_, err := vtgateConn.ExecuteFetch(query, 0, false)
require.NoError(t, err)
}
2 changes: 1 addition & 1 deletion go/vt/vtgate/planbuilder/operators/insert.go
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Expand Up @@ -107,7 +107,7 @@ func (i *Insert) Statement() sqlparser.Statement {
func createOperatorFromInsert(ctx *plancontext.PlanningContext, ins *sqlparser.Insert) Operator {
tableInfo, qt := createQueryTableForDML(ctx, ins.Table, nil)

vTbl, routing := buildVindexTableForDML(ctx, tableInfo, qt, "insert")
vTbl, routing := buildVindexTableForDML(ctx, tableInfo, qt, ins, "insert")

deleteBeforeInsert := false
if ins.Action == sqlparser.ReplaceAct &&
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6 changes: 5 additions & 1 deletion go/vt/vtgate/planbuilder/operators/route_planning.go
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Expand Up @@ -80,15 +80,19 @@ func buildVindexTableForDML(
ctx *plancontext.PlanningContext,
tableInfo semantics.TableInfo,
table *QueryTable,
ins *sqlparser.Insert,
dmlType string,
) (*vindexes.Table, Routing) {
vindexTable := tableInfo.GetVindexTable()
if vindexTable.Source != nil {
if tableInfo.GetVindexTable().Type == vindexes.TypeReference && vindexTable.Source != nil {
sourceTable, _, _, _, _, err := ctx.VSchema.FindTableOrVindex(vindexTable.Source.TableName)
if err != nil {
panic(err)
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}
vindexTable = sourceTable
refTbl := sqlparser.NewAliasedTableExpr(vindexTable.GetTableName(), "")
ins.Table.Expr = refTbl.Expr
// We don't need to process the alias because you cannot define aliases for inserts.
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What does this mean?

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inserts take a table name where as other dmls take a table_reference (where you can specify aliases).

INSERT [LOW_PRIORITY | DELAYED | HIGH_PRIORITY] [IGNORE]
    [INTO] tbl_name
    [PARTITION (partition_name [, partition_name] ...)]
    [(col_name [, col_name] ...)]
    { {VALUES | VALUE} (value_list) [, (value_list)] ... }
    [AS row_alias[(col_alias [, col_alias] ...)]]
    [ON DUPLICATE KEY UPDATE assignment_list]

UPDATE [LOW_PRIORITY] [IGNORE] table_reference
    SET assignment_list
    [WHERE where_condition]
    [ORDER BY ...]
    [LIMIT row_count]

table_references:
    escaped_table_reference [, escaped_table_reference] ...

escaped_table_reference: {
    table_reference
  | { OJ table_reference }
}

table_reference: {
    table_factor
  | joined_table
}

table_factor: {
    tbl_name [PARTITION (partition_names)]
        [[AS] alias] [index_hint_list]
  | [LATERAL] table_subquery [AS] alias [(col_list)]
  | ( table_references )
}

}

if !vindexTable.Keyspace.Sharded {
Expand Down
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