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new 2757b4bf7ec [chore](nereids) Added compatibility with mysql alias
conflict (#38104)
2757b4bf7ec is described below
commit 2757b4bf7ec7b92616ac95e24f924c036ad6bc84
Author: toms <94617906+toms1...@users.noreply.github.com>
AuthorDate: Fri Jul 26 22:16:36 2024 +0800
[chore](nereids) Added compatibility with mysql alias conflict (#38104)
throw table name/alias conflict exception to keep same behavior with mysql
for example:
```sql
select * from test.a b, test.b
```
error:
```
Not unique table/alias: 'b'
```
---
.../nereids/rules/analysis/BindExpression.java | 46 ++++
.../rules/analysis/BindSlotReferenceTest.java | 40 ++-
.../data/nereids_syntax_p0/alias_conflict.out | 29 +++
.../limit_push_down/limit_push_down.groovy | 2 +-
.../suites/nereids_syntax_p0/alias_conflict.groovy | 271 +++++++++++++++++++++
5 files changed, 376 insertions(+), 12 deletions(-)
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/BindExpression.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/BindExpression.java
index 15f8dabc8f7..db39d661d3e 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/BindExpression.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/BindExpression.java
@@ -69,6 +69,7 @@ import org.apache.doris.nereids.trees.plans.algebra.Aggregate;
import org.apache.doris.nereids.trees.plans.algebra.SetOperation;
import org.apache.doris.nereids.trees.plans.algebra.SetOperation.Qualifier;
import org.apache.doris.nereids.trees.plans.logical.LogicalAggregate;
+import org.apache.doris.nereids.trees.plans.logical.LogicalCatalogRelation;
import org.apache.doris.nereids.trees.plans.logical.LogicalExcept;
import org.apache.doris.nereids.trees.plans.logical.LogicalFilter;
import org.apache.doris.nereids.trees.plans.logical.LogicalGenerate;
@@ -104,6 +105,7 @@ import com.google.common.collect.ImmutableList.Builder;
import com.google.common.collect.ImmutableListMultimap;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
@@ -116,6 +118,7 @@ import java.util.HashSet;
import java.util.List;
import java.util.Optional;
import java.util.Set;
+import java.util.function.Consumer;
import java.util.function.Supplier;
import java.util.stream.Collectors;
@@ -508,6 +511,8 @@ public class BindExpression implements AnalysisRuleFactory {
LogicalJoin<Plan, Plan> join = ctx.root;
CascadesContext cascadesContext = ctx.cascadesContext;
+ checkConflictAlias(join);
+
SimpleExprAnalyzer analyzer = buildSimpleExprAnalyzer(
join, cascadesContext, join.children(), true, true);
@@ -532,6 +537,47 @@ public class BindExpression implements AnalysisRuleFactory
{
join.children(), null);
}
+ private void checkConflictAlias(Plan plan) {
+ Set<String> existsTableNames = Sets.newLinkedHashSet();
+ Consumer<String> checkAlias = tableAliasName -> {
+ if (!existsTableNames.add(tableAliasName)) {
+ String tableName =
tableAliasName.substring(tableAliasName.lastIndexOf('.') + 1);
+ throw new AnalysisException("Not unique table/alias: '" +
tableName + "'");
+ }
+ };
+
+ boolean stopCheckChildren = true;
+ plan.foreach(p -> {
+ if (p instanceof LogicalSubQueryAlias) {
+ String alias = ((LogicalSubQueryAlias<?>) p).getAlias();
+ String dbName = getDbName(p.children().get(0));
+ String result = dbName + "." + alias;
+ checkAlias.accept(result);
+ return stopCheckChildren;
+
+ } else if (p instanceof LogicalCatalogRelation) {
+ String table = ((LogicalCatalogRelation) p).qualifiedName();
+ checkAlias.accept(table);
+ return stopCheckChildren;
+ } else {
+ return !stopCheckChildren;
+ }
+ });
+ }
+
+ private String getDbName(Plan plan) {
+ if (plan instanceof LogicalCatalogRelation) {
+ return ((LogicalCatalogRelation)
plan).qualifiedName().split("\\.")[0]
+ + ((LogicalCatalogRelation)
plan).qualifiedName().split("\\.")[1];
+ } else if (plan instanceof LogicalSubQueryAlias) {
+ return ((LogicalSubQueryAlias<?>) plan).getQualifier().get(0)
+ + ((LogicalSubQueryAlias<?>) plan).getQualifier().get(1);
+
+ } else {
+ return "default-catalog" + "default-db";
+ }
+ }
+
private LogicalJoin<Plan, Plan>
bindUsingJoin(MatchingContext<UsingJoin<Plan, Plan>> ctx) {
UsingJoin<Plan, Plan> using = ctx.root;
CascadesContext cascadesContext = ctx.cascadesContext;
diff --git
a/fe/fe-core/src/test/java/org/apache/doris/nereids/rules/analysis/BindSlotReferenceTest.java
b/fe/fe-core/src/test/java/org/apache/doris/nereids/rules/analysis/BindSlotReferenceTest.java
index 097bf79c051..1d5369228a7 100644
---
a/fe/fe-core/src/test/java/org/apache/doris/nereids/rules/analysis/BindSlotReferenceTest.java
+++
b/fe/fe-core/src/test/java/org/apache/doris/nereids/rules/analysis/BindSlotReferenceTest.java
@@ -28,6 +28,7 @@ import org.apache.doris.nereids.trees.plans.JoinType;
import org.apache.doris.nereids.trees.plans.logical.LogicalAggregate;
import org.apache.doris.nereids.trees.plans.logical.LogicalJoin;
import org.apache.doris.nereids.trees.plans.logical.LogicalOlapScan;
+import org.apache.doris.nereids.trees.plans.logical.LogicalPlan;
import org.apache.doris.nereids.trees.plans.logical.LogicalProject;
import org.apache.doris.nereids.trees.plans.logical.LogicalSubQueryAlias;
import org.apache.doris.nereids.util.MemoTestUtils;
@@ -40,6 +41,8 @@ import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
+import java.util.List;
+
class BindSlotReferenceTest {
@BeforeEach
@@ -58,11 +61,18 @@ class BindSlotReferenceTest {
@Test
public void testAmbiguousSlot() {
- LogicalOlapScan scan1 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student);
- LogicalOlapScan scan2 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student);
- LogicalJoin<LogicalOlapScan, LogicalOlapScan> join = new LogicalJoin<>(
- JoinType.CROSS_JOIN, scan1, scan2, null);
- LogicalProject<LogicalJoin<LogicalOlapScan, LogicalOlapScan>> project
= new LogicalProject<>(
+ String qualifiedName = "internal.db.student";
+ List<String> qualifier =
ImmutableList.copyOf(qualifiedName.split("\\."));
+ LogicalOlapScan scan1 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student,
+ qualifier);
+ LogicalOlapScan scan2 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student,
+ qualifier);
+ LogicalSubQueryAlias<LogicalOlapScan> aliasedScan2 = new
LogicalSubQueryAlias<>("scan2_alias", scan2);
+
+ LogicalJoin<LogicalPlan, LogicalPlan> join = new LogicalJoin<>(
+ JoinType.CROSS_JOIN, scan1, aliasedScan2, null);
+
+ LogicalProject<LogicalPlan> project = new LogicalProject<>(
ImmutableList.of(new UnboundSlot("id")), join);
AnalysisException exception =
Assertions.assertThrows(AnalysisException.class,
@@ -73,14 +83,18 @@ class BindSlotReferenceTest {
}
/*
- select t1.id from student t1 join on student t2 on t1.di=t2.id group by id;
+ select t1.id from student t1 join student t2 on t1.id=t2.id group by id;
group_by_key bind on t1.id, not t2.id
*/
@Test
public void testGroupByOnJoin() {
- LogicalOlapScan scan1 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student);
+ String qualifiedName = "internal.db.student";
+ List<String> qualifier =
ImmutableList.copyOf(qualifiedName.split("\\."));
+ LogicalOlapScan scan1 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student,
+ qualifier);
LogicalSubQueryAlias<LogicalOlapScan> sub1 = new
LogicalSubQueryAlias<>("t1", scan1);
- LogicalOlapScan scan2 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student);
+ LogicalOlapScan scan2 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student,
+ qualifier);
LogicalSubQueryAlias<LogicalOlapScan> sub2 = new
LogicalSubQueryAlias<>("t2", scan2);
LogicalJoin<LogicalSubQueryAlias<LogicalOlapScan>,
LogicalSubQueryAlias<LogicalOlapScan>> join =
new LogicalJoin<>(JoinType.CROSS_JOIN, sub1, sub2, null);
@@ -100,14 +114,18 @@ class BindSlotReferenceTest {
}
/*
- select count(1) from student t1 join on student t2 on t1.di=t2.id group by
id;
+ select count(1) from student t1 join student t2 on t1.di=t2.id group by id;
group by key is ambiguous
*/
@Test
public void testGroupByOnJoinAmbiguous() {
- LogicalOlapScan scan1 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student);
+ String qualifiedName = "internal.db.student";
+ List<String> qualifier =
ImmutableList.copyOf(qualifiedName.split("\\."));
+ LogicalOlapScan scan1 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student,
+ qualifier);
LogicalSubQueryAlias<LogicalOlapScan> sub1 = new
LogicalSubQueryAlias<>("t1", scan1);
- LogicalOlapScan scan2 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student);
+ LogicalOlapScan scan2 = new
LogicalOlapScan(StatementScopeIdGenerator.newRelationId(),
PlanConstructor.student,
+ qualifier);
LogicalSubQueryAlias<LogicalOlapScan> sub2 = new
LogicalSubQueryAlias<>("t2", scan2);
LogicalJoin<LogicalSubQueryAlias<LogicalOlapScan>,
LogicalSubQueryAlias<LogicalOlapScan>> join =
new LogicalJoin<>(JoinType.CROSS_JOIN, sub1, sub2, null);
diff --git a/regression-test/data/nereids_syntax_p0/alias_conflict.out
b/regression-test/data/nereids_syntax_p0/alias_conflict.out
new file mode 100644
index 00000000000..497d8c8269c
--- /dev/null
+++ b/regression-test/data/nereids_syntax_p0/alias_conflict.out
@@ -0,0 +1,29 @@
+-- This file is automatically generated. You should know what you did if you
want to edit this
+-- !select_normal --
+1
+
+-- !catalog_normal --
+
+-- !view_normal --
+
+-- !select_no_conflict --
+1 a 12 1 a 12
+
+-- !select_no_conflict --
+1 a 12 1 a 12
+
+-- !select_diff_alias --
+1 a 12 1 a 12
+
+-- !select_nested_no_conflict --
+1 a 12 1 a 12
+
+-- !select_cross_db_no_conflict --
+1 a 12 1 a 12
+
+-- !child_query_no_conflict1 --
+1 1 a 12
+
+-- !child_query_no_conflict2 --
+1 a 12 1 a 12
+
diff --git
a/regression-test/suites/nereids_rules_p0/limit_push_down/limit_push_down.groovy
b/regression-test/suites/nereids_rules_p0/limit_push_down/limit_push_down.groovy
index 00ebb05ab6e..3aec22fa928 100644
---
a/regression-test/suites/nereids_rules_p0/limit_push_down/limit_push_down.groovy
+++
b/regression-test/suites/nereids_rules_p0/limit_push_down/limit_push_down.groovy
@@ -207,5 +207,5 @@ suite("limit_push_down") {
qt_limit_right_outer_join_full_outer_join_cross_join """explain shape plan
SELECT t1.id FROM t1 RIGHT OUTER JOIN t2 ON t1.id = t2.id FULL OUTER JOIN t3 ON
t1.id = t3.id CROSS JOIN t4 LIMIT 1;"""
// `limit 1, left outer join, right outer join, full outer join, cross
join`:
- qt_limit_left_outer_join_right_outer_join_full_outer_join_cross_join
"""explain shape plan SELECT * FROM t1 LEFT OUTER JOIN t2 ON t1.id = t2.id
RIGHT OUTER JOIN t3 ON t1.id = t3.id FULL OUTER JOIN t4 ON t1.id = t4.id inner
JOIN t4 on TRUE LIMIT 1;"""
+ qt_limit_left_outer_join_right_outer_join_full_outer_join_cross_join
"""explain shape plan SELECT * FROM t1 LEFT OUTER JOIN t2 ON t1.id = t2.id
RIGHT OUTER JOIN t3 ON t1.id = t3.id FULL OUTER JOIN t4 ON t1.id = t4.id inner
JOIN t4 as x on TRUE LIMIT 1;"""
}
\ No newline at end of file
diff --git a/regression-test/suites/nereids_syntax_p0/alias_conflict.groovy
b/regression-test/suites/nereids_syntax_p0/alias_conflict.groovy
new file mode 100644
index 00000000000..a6bc70387fe
--- /dev/null
+++ b/regression-test/suites/nereids_syntax_p0/alias_conflict.groovy
@@ -0,0 +1,271 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you 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.
+
+suite("alias_conflict") {
+
+ sql """ DROP TABLE IF EXISTS `test_alias_conflict1` """
+ sql """ DROP TABLE IF EXISTS `test_alias_conflict2` """
+ sql """ DROP TABLE IF EXISTS `test_alias_conflict3` """
+ sql """ DROP DATABASE IF EXISTS `alias_conflict1` """
+ sql """ DROP DATABASE IF EXISTS `alias_conflict2` """
+ sql """ DROP CATALOG IF EXISTS `jdbc_alias_conflict` """
+
+
+ sql """ CREATE DATABASE IF NOT EXISTS `alias_conflict1` """
+ sql """ CREATE DATABASE IF NOT EXISTS `alias_conflict2` """
+
+ sql """
+ CREATE TABLE `test_alias_conflict1` (
+ `id` varchar(64) NULL,
+ `name` varchar(64) NULL,
+ `age` int NULL
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`,`name`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`,`name`) BUCKETS 4
+ PROPERTIES (
+ "replication_allocation" = "tag.location.default: 1",
+ "in_memory" = "false",
+ "storage_format" = "V2",
+ "disable_auto_compaction" = "false"
+ );
+ """
+
+ sql """
+ CREATE TABLE `test_alias_conflict2` (
+ `id` varchar(64) NULL,
+ `name` varchar(64) NULL,
+ `age` int NULL
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`,`name`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`,`name`) BUCKETS 5
+ PROPERTIES (
+ "replication_allocation" = "tag.location.default: 1",
+ "in_memory" = "false",
+ "storage_format" = "V2",
+ "disable_auto_compaction" = "false"
+ );
+ """
+
+ sql """
+ CREATE TABLE `test_alias_conflict3` (
+ `id` varchar(64) NULL,
+ `name` varchar(64) NULL,
+ `age` int NULL
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`,`name`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`,`name`) BUCKETS 6
+ PROPERTIES (
+ "replication_allocation" = "tag.location.default: 1",
+ "in_memory" = "false",
+ "storage_format" = "V2",
+ "disable_auto_compaction" = "false"
+ );
+ """
+
+ sql """
+ CREATE TABLE `alias_conflict1`.`test_alias_conflict1` (
+ `id` varchar(64) NULL,
+ `name` varchar(64) NULL,
+ `age` int NULL
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`,`name`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`,`name`) BUCKETS 3
+ PROPERTIES (
+ "replication_allocation" = "tag.location.default: 1",
+ "in_memory" = "false",
+ "storage_format" = "V2",
+ "disable_auto_compaction" = "false"
+ );
+ """
+
+ sql """
+ CREATE TABLE `alias_conflict1`.`test_alias_conflict2` (
+ `id` varchar(64) NULL,
+ `name` varchar(64) NULL,
+ `age` int NULL
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`,`name`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`,`name`) BUCKETS 3
+ PROPERTIES (
+ "replication_allocation" = "tag.location.default: 1",
+ "in_memory" = "false",
+ "storage_format" = "V2",
+ "disable_auto_compaction" = "false"
+ );
+ """
+
+ sql """
+ CREATE TABLE `alias_conflict1`.`test_alias_conflict8` (
+ `id` varchar(64) NULL,
+ `name` varchar(64) NULL,
+ `age` int NULL
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`,`name`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`,`name`) BUCKETS 3
+ PROPERTIES (
+ "replication_allocation" = "tag.location.default: 1",
+ "in_memory" = "false",
+ "storage_format" = "V2",
+ "disable_auto_compaction" = "false"
+ );
+ """
+
+ sql """
+ CREATE TABLE `alias_conflict2`.`test_alias_conflict1` (
+ `id` varchar(64) NULL,
+ `name` varchar(64) NULL,
+ `age` int NULL
+ ) ENGINE=OLAP
+ DUPLICATE KEY(`id`,`name`)
+ COMMENT 'OLAP'
+ DISTRIBUTED BY HASH(`id`,`name`) BUCKETS 3
+ PROPERTIES (
+ "replication_allocation" = "tag.location.default: 1",
+ "in_memory" = "false",
+ "storage_format" = "V2",
+ "disable_auto_compaction" = "false"
+ );
+ """
+
+ sql """insert into test_alias_conflict1 values('1','a',12);"""
+ sql """insert into test_alias_conflict2 values('1','a',12);"""
+ sql """insert into test_alias_conflict3 values('1','a',12);"""
+ sql """insert into alias_conflict1.test_alias_conflict1
values('1','a',12);"""
+ sql """insert into alias_conflict2.test_alias_conflict1
values('1','a',12);"""
+
+ //create view
+ sql """create view alias_conflict2.test_alias_conflict8 as select * from
alias_conflict1.test_alias_conflict8;"""
+
+ //create catalog
+ sql """
+ CREATE CATALOG jdbc_alias_conflict properties(
+ 'type'='jdbc',
+ 'user'='${context.config.jdbcUser}',
+ 'password'='${context.config.jdbcPassword}',
+ 'jdbc_url' = '${context.config.jdbcUrl}',
+ 'driver_url' =
'https://repo1.maven.org/maven2/com/mysql/mysql-connector-j/8.4.0/mysql-connector-j-8.4.0.jar',
+ 'driver_class' = 'com.mysql.cj.jdbc.Driver'
+ );
+ """
+
+
+ // Valid query
+ qt_select_normal """select t3.id from test_alias_conflict1 t1 inner join
test_alias_conflict2 t2 on true inner join test_alias_conflict3 t3 on t3.id =
t2.id;"""
+
+ qt_catalog_normal """select * from
internal.alias_conflict1.test_alias_conflict2,
jdbc_alias_conflict.alias_conflict2.test_alias_conflict1;"""
+
+ qt_view_normal """select * from alias_conflict2.test_alias_conflict8,
alias_conflict1.test_alias_conflict8"""
+
+ // Test for alias conflict
+ test {
+ sql "select * from test_alias_conflict1 t, test_alias_conflict1 t;"
+ exception "Not unique table/alias: 't'"
+ }
+
+ // Test for table name conflict
+ test {
+ sql "select * from test_alias_conflict1 t1, test_alias_conflict2 t1;"
+ exception "Not unique table/alias: 't1'"
+ }
+
+
+
+ // Test for view name conflict
+ test {
+ sql "select * from alias_conflict2.test_alias_conflict8 t1,
alias_conflict2.test_alias_conflict1 t1;"
+ exception "Not unique table/alias: 't1'"
+ }
+
+ // Test for view name conflict
+ test {
+ sql "select * from (select * from
alias_conflict2.test_alias_conflict8) t1, (select 100 id) t1;"
+ exception "Not unique table/alias: 't1'"
+ }
+
+ // Test for more table conflicts
+ test {
+ sql "select * from test_alias_conflict1, test_alias_conflict1 b,
test_alias_conflict1 c, test_alias_conflict1"
+ exception "Not unique table/alias: 'test_alias_conflict1'"
+ }
+
+ test {
+ sql """select * from test_alias_conflict1
+ join test_alias_conflict1 b on test_alias_conflict1.id = b.id
+ join test_alias_conflict1 c on b.id = c.id
+ join test_alias_conflict1 on true"""
+ exception "Not unique table/alias: 'test_alias_conflict1'"
+ }
+
+ // Complex query with alias conflict
+ test {
+ sql "select * from (select * from test_alias_conflict1) a, (select *
from test_alias_conflict1) a;"
+ exception "Not unique table/alias: 'a'"
+ }
+
+ // Complex query with alias conflict
+ test {
+ sql "select 1 from (select 1 from test_alias_conflict1 where 1 = 1
group by 1 order by 1 limit 1 ) a, (select 1 from test_alias_conflict1 where 1
= 1 group by 1 order by 1 limit 1 ) a;"
+ exception "Not unique table/alias: 'a'"
+ }
+
+ // Test for no conflict
+ qt_select_no_conflict """select * from test_alias_conflict1 t1,
test_alias_conflict2 t2 where t1.id = t2.id;"""
+
+ qt_select_no_conflict "select * from alias_conflict1.test_alias_conflict1,
alias_conflict2.test_alias_conflict1;"
+
+
+ // Test case where alias are different
+ qt_select_diff_alias """select * from test_alias_conflict2 a,
test_alias_conflict2 b;"""
+
+ // Test case where aliases conflict within subqueries should not raise
error
+ qt_select_nested_no_conflict """select * from
+ (
+ select * from test_alias_conflict1 a
+ ) b
+ join
+ (
+ select * from test_alias_conflict1 a
+ ) c
+ on b.id = c.id;"""
+
+
+
+ // Test case for cross database table names with no conflict
+ qt_select_cross_db_no_conflict """select * from
alias_conflict1.test_alias_conflict1 a, alias_conflict2.test_alias_conflict1 b
where a.id = b.id;"""
+
+
+ qt_child_query_no_conflict1 """select * from (select 1) as
no_conflict1_tbl, alias_conflict1.test_alias_conflict1 as no_conflict1_tbl;"""
+
+
+ qt_child_query_no_conflict2 """select * from (select * from
alias_conflict1.test_alias_conflict1) as no_conflict1_tbl2,
alias_conflict1.test_alias_conflict1 as no_conflict1_tbl2"""
+
+ sql """ DROP TABLE IF EXISTS `test_alias_conflict1` """
+ sql """ DROP TABLE IF EXISTS `test_alias_conflict2` """
+ sql """ DROP TABLE IF EXISTS `test_alias_conflict3` """
+ sql """ DROP TABLE IF EXISTS `alias_conflict1`.`test_alias_conflict1` """
+ sql """ DROP TABLE IF EXISTS `alias_conflict2`.`test_alias_conflict1` """
+ sql """ DROP DATABASE IF EXISTS `alias_conflict1` """
+ sql """ DROP DATABASE IF EXISTS `alias_conflict2` """
+ sql """ DROP CATALOG IF EXISTS `jdbc_alias_conflict` """
+}
+
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