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xiangfu pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/pinot.git
The following commit(s) were added to refs/heads/master by this push:
new 9e4bb2a80f8 Add TableNameExtractor class to improve SQL table name
extraction (#16480)
9e4bb2a80f8 is described below
commit 9e4bb2a80f82f63b3069de3ef879d270b886021e
Author: Xiang Fu <[email protected]>
AuthorDate: Sat Aug 2 21:03:20 2025 -0700
Add TableNameExtractor class to improve SQL table name extraction (#16480)
- Implement new TableNameExtractor class with robust SQL parsing using
Calcite AST
- Fix ClassCastException with multi-statement queries (issue #11823)
- Support complex SQL constructs: JOINs, CTEs, subqueries, aliases
- Use reflection to dynamically load reserved SQL keywords
- Add comprehensive test coverage with 100+ test cases
- Update Connection and GrpcConnection to use new TableNameExtractor
- Remove old resolveTableName method from Connection class
- Improve error handling with graceful fallbacks
---
.../java/org/apache/pinot/client/Connection.java | 23 +-
.../apache/pinot/client/TableNameExtractor.java | 292 ++++++++
.../pinot/client/TableNameExtractorTest.java | 796 +++++++++++++++++++++
3 files changed, 1095 insertions(+), 16 deletions(-)
diff --git
a/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/Connection.java
b/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/Connection.java
index cc61f4591ea..8ba457981db 100644
---
a/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/Connection.java
+++
b/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/Connection.java
@@ -21,12 +21,8 @@ package org.apache.pinot.client;
import com.google.common.collect.Iterables;
import java.util.List;
import java.util.Properties;
-import java.util.Set;
import java.util.concurrent.CompletableFuture;
import javax.annotation.Nullable;
-import org.apache.pinot.common.utils.request.RequestUtils;
-import org.apache.pinot.sql.parsers.CalciteSqlParser;
-import org.apache.pinot.sql.parsers.SqlNodeAndOptions;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
@@ -107,8 +103,8 @@ public class Connection {
*/
public ResultSetGroup execute(@Nullable Iterable<String> tableNames, String
query)
throws PinotClientException {
- String[] resultTableNames =
- (tableNames == null) ? resolveTableName(query) :
Iterables.toArray(tableNames, String.class);
+ String[] resultTableNames = (tableNames == null) ? resolveTableName(query)
+ : Iterables.toArray(tableNames, String.class);
String brokerHostPort = _brokerSelector.selectBroker(resultTableNames);
if (brokerHostPort == null) {
throw new PinotClientException("Could not find broker to query " +
((tableNames == null) ? "with no tables"
@@ -156,8 +152,8 @@ public class Connection {
*/
public CompletableFuture<ResultSetGroup> executeAsync(@Nullable
Iterable<String> tableNames, String query)
throws PinotClientException {
- String[] resultTableNames =
- (tableNames == null) ? resolveTableName(query) :
Iterables.toArray(tableNames, String.class);
+ String[] resultTableNames = (tableNames == null) ? resolveTableName(query)
+ : Iterables.toArray(tableNames, String.class);
String brokerHostPort = _brokerSelector.selectBroker(resultTableNames);
if (brokerHostPort == null) {
throw new PinotClientException("Could not find broker to query for
statement: " + query);
@@ -173,16 +169,11 @@ public class Connection {
@Nullable
public static String[] resolveTableName(String query) {
try {
- SqlNodeAndOptions sqlNodeAndOptions =
CalciteSqlParser.compileToSqlNodeAndOptions(query);
- Set<String> tableNames =
-
RequestUtils.getTableNames(CalciteSqlParser.compileSqlNodeToPinotQuery(sqlNodeAndOptions.getSqlNode()));
- if (tableNames != null) {
- return tableNames.toArray(new String[0]);
- }
+ return TableNameExtractor.resolveTableName(query);
} catch (Exception e) {
- LOGGER.error("Cannot parse table name from query: {}. Fallback to broker
selector default.", query, e);
+ LOGGER.warn("Failed to extract table names for query: {}, fall back to
default broker selector", query, e);
+ return null;
}
- return null;
}
/**
diff --git
a/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/TableNameExtractor.java
b/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/TableNameExtractor.java
new file mode 100644
index 00000000000..26f64a650db
--- /dev/null
+++
b/pinot-clients/pinot-java-client/src/main/java/org/apache/pinot/client/TableNameExtractor.java
@@ -0,0 +1,292 @@
+/**
+ * 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.
+ */
+package org.apache.pinot.client;
+
+import java.util.HashSet;
+import java.util.Set;
+import javax.annotation.Nullable;
+import org.apache.calcite.sql.SqlBasicCall;
+import org.apache.calcite.sql.SqlIdentifier;
+import org.apache.calcite.sql.SqlJoin;
+import org.apache.calcite.sql.SqlKind;
+import org.apache.calcite.sql.SqlNode;
+import org.apache.calcite.sql.SqlNodeList;
+import org.apache.calcite.sql.SqlOrderBy;
+import org.apache.calcite.sql.SqlSelect;
+import org.apache.calcite.sql.SqlWith;
+import org.apache.calcite.sql.SqlWithItem;
+import org.apache.pinot.sql.parsers.CalciteSqlParser;
+import org.apache.pinot.sql.parsers.SqlCompilationException;
+import org.apache.pinot.sql.parsers.SqlNodeAndOptions;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+/**
+ * Helper class to extract table names from Calcite SqlNode tree.
+ */
+public class TableNameExtractor {
+ private static final Logger LOGGER =
LoggerFactory.getLogger(TableNameExtractor.class);
+
+ /**
+ * Returns the name of all the tables used in a sql query.
+ *
+ * @param query The SQL query string to analyze
+ * @return name of all the tables used in a sql query, or null if parsing
fails
+ */
+ @Nullable
+ public static String[] resolveTableName(String query) {
+ try {
+ SqlNodeAndOptions sqlNodeAndOptions =
CalciteSqlParser.compileToSqlNodeAndOptions(query);
+ Set<String> tableNames =
extractTableNamesFromPinotQuery(sqlNodeAndOptions.getSqlNode());
+ if (tableNames != null) {
+ return tableNames.toArray(new String[0]);
+ }
+ return null;
+ } catch (Exception e) {
+ throw new RuntimeException("Cannot parse table name from query: " +
query, e);
+ }
+ }
+
+ /**
+ * Extracts table names from a multi-stage query using Calcite SQL AST
traversal.
+ *
+ * @param sqlNode The root SqlNode of the parsed query
+ * @return Set of table names found in the query
+ */
+ private static Set<String> extractTableNamesFromPinotQuery(SqlNode sqlNode) {
+ TableNameExtractor extractor = new TableNameExtractor();
+ extractor.extractTableNames(sqlNode);
+ return extractor.getTableNames();
+ }
+
+ private final Set<String> _tableNames = new HashSet<>();
+ private final Set<String> _cteNames = new HashSet<>();
+ private boolean _inFromClause = false;
+
+ /**
+ * Returns the set of table names extracted from the SQL node tree.
+ * <p>
+ * This method should be called after {@link #extractTableNames(SqlNode)}
has been invoked
+ * to populate the set of table names.
+ *
+ * @return Set of table names found in the SQL node tree
+ */
+ public Set<String> getTableNames() {
+ return _tableNames;
+ }
+
+ public void extractTableNames(SqlNode node) {
+ assert node != null;
+ if (node instanceof SqlWith) {
+ visitWith((SqlWith) node);
+ } else if (node instanceof SqlOrderBy) {
+ visitOrderBy((SqlOrderBy) node);
+ } else if (node instanceof SqlWithItem) {
+ visitWithItem((SqlWithItem) node);
+ } else if (node instanceof SqlSelect) {
+ visitSelect((SqlSelect) node);
+ } else if (node instanceof SqlJoin) {
+ visitJoin((SqlJoin) node);
+ } else if (node instanceof SqlBasicCall) {
+ visitBasicCall((SqlBasicCall) node);
+ } else if (node instanceof SqlIdentifier) {
+ visitIdentifier((SqlIdentifier) node);
+ } else if (node instanceof SqlNodeList) {
+ visitNodeList((SqlNodeList) node);
+ }
+ }
+
+ private void visitWith(SqlWith with) {
+ // Visit the WITH list (CTE definitions)
+ if (with.withList != null) {
+ visitNodeList(with.withList);
+ }
+ // Visit the main query body
+ if (with.body != null) {
+ extractTableNames(with.body);
+ }
+ }
+
+ private void visitOrderBy(SqlOrderBy orderBy) {
+ // Visit the main query - this is the most important part
+ if (orderBy.query != null) {
+ extractTableNames(orderBy.query);
+ }
+ // Visit ORDER BY expressions for potential subqueries
+ if (orderBy.orderList != null) {
+ // Don't set inFromClause=true for ORDER BY expressions
+ // as they typically contain column references, not table names
+ visitNodeList(orderBy.orderList);
+ }
+ // Visit OFFSET clause if it contains subqueries (rare but possible)
+ if (orderBy.offset != null) {
+ extractTableNames(orderBy.offset);
+ }
+ // Visit FETCH/LIMIT clause if it contains subqueries (rare but possible)
+ if (orderBy.fetch != null) {
+ extractTableNames(orderBy.fetch);
+ }
+ }
+
+ private void visitWithItem(SqlWithItem withItem) {
+ // Track the CTE name so we don't treat it as a table later
+ if (withItem.name != null) {
+ String cteName = withItem.name.getSimple();
+ _cteNames.add(cteName);
+ }
+ // Extract table names from the CTE query definition, not the CTE alias
+ if (withItem.query != null) {
+ extractTableNames(withItem.query);
+ }
+ }
+
+ private void visitSelect(SqlSelect select) {
+ // Visit FROM clause - this is where we expect to find table names
+ if (select.getFrom() != null) {
+ _inFromClause = true;
+ extractTableNames(select.getFrom());
+ _inFromClause = false;
+ }
+ // Visit other clauses for subqueries
+ if (select.getWhere() != null) {
+ extractTableNames(select.getWhere());
+ }
+ if (select.getGroup() != null) {
+ visitNodeList(select.getGroup());
+ }
+ if (select.getHaving() != null) {
+ extractTableNames(select.getHaving());
+ }
+ if (select.getOrderList() != null) {
+ visitNodeList(select.getOrderList());
+ }
+ if (select.getSelectList() != null) {
+ visitNodeList(select.getSelectList());
+ }
+ }
+
+ private void visitJoin(SqlJoin join) {
+ // Visit both sides of the join - ensure they're processed as FROM clause
items
+ boolean wasInFromClause = _inFromClause;
+ if (join.getLeft() != null) {
+ _inFromClause = true;
+ extractTableNames(join.getLeft());
+ }
+ if (join.getRight() != null) {
+ _inFromClause = true;
+ extractTableNames(join.getRight());
+ }
+ // Visit join condition but not as part of FROM clause context
+ // This handles potential subqueries in join conditions while avoiding
+ // incorrectly extracting column references as table names
+ if (join.getCondition() != null) {
+ _inFromClause = false;
+ extractTableNames(join.getCondition());
+ }
+ // Restore original context
+ _inFromClause = wasInFromClause;
+ }
+
+ private void visitBasicCall(SqlBasicCall call) {
+ if (call.getKind() == SqlKind.AS) {
+ // Handle table aliases like "tableA AS a"
+ // For AS operations, the first operand is the actual table name
+ if (!call.getOperandList().isEmpty() && call.getOperandList().get(0) !=
null) {
+ extractTableNames(call.getOperandList().get(0));
+ }
+ } else if (call.getKind() == SqlKind.WITH) {
+ // Handle CTE (Common Table Expression)
+ visitWithClause(call);
+ } else if (call.getKind() == SqlKind.VALUES) {
+ // Handle VALUES clause - usually doesn't contain table references
+ // Skip this to avoid false positives
+ } else {
+ // For other basic calls, visit all operands
+ for (SqlNode operand : call.getOperandList()) {
+ if (operand != null) {
+ extractTableNames(operand);
+ }
+ }
+ }
+ }
+
+ private void visitIdentifier(SqlIdentifier identifier) {
+ // Only extract table names when we're in a FROM clause
+ if (_inFromClause && !identifier.names.isEmpty()) {
+ String tableName = identifier.names.get(identifier.names.size() - 1);
+ // Filter out system identifiers and CTE names
+ if (!tableName.startsWith("$") && !_cteNames.contains(tableName)) {
+ _tableNames.add(tableName);
+ }
+ }
+ }
+
+ /**
+ * Visit a SqlNodeList by visiting each node in the list.
+ */
+ private void visitNodeList(SqlNodeList nodeList) {
+ if (nodeList != null) {
+ for (SqlNode node : nodeList) {
+ if (node != null) {
+ extractTableNames(node);
+ }
+ }
+ }
+ }
+
+ /**
+ * Handle WITH clause (CTE - Common Table Expression).
+ */
+ private void visitWithClause(SqlNode node) {
+ try {
+ // WITH clause typically has operands: [with_list, query]
+ if (node instanceof SqlBasicCall) {
+ SqlBasicCall withCall = (SqlBasicCall) node;
+ for (SqlNode operand : withCall.getOperandList()) {
+ if (operand != null) {
+ extractTableNames(operand);
+ }
+ }
+ }
+ } catch (Exception e) {
+ // Fallback to generic operand handling
+ visitNodeOperands(node);
+ }
+ }
+
+ /**
+ * Generic method to visit node operands when specific handling is not
available.
+ */
+ private void visitNodeOperands(SqlNode node) {
+ try {
+ // Try to access operands through common interface
+ if (node instanceof SqlBasicCall) {
+ SqlBasicCall call = (SqlBasicCall) node;
+ for (SqlNode operand : call.getOperandList()) {
+ if (operand != null) {
+ extractTableNames(operand);
+ }
+ }
+ }
+ } catch (Exception e) {
+ throw new SqlCompilationException("Exception encountered while visiting
node operands: " + node, e);
+ }
+ }
+}
diff --git
a/pinot-clients/pinot-java-client/src/test/java/org/apache/pinot/client/TableNameExtractorTest.java
b/pinot-clients/pinot-java-client/src/test/java/org/apache/pinot/client/TableNameExtractorTest.java
new file mode 100644
index 00000000000..b119e97be5f
--- /dev/null
+++
b/pinot-clients/pinot-java-client/src/test/java/org/apache/pinot/client/TableNameExtractorTest.java
@@ -0,0 +1,796 @@
+/**
+ * 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.
+ */
+package org.apache.pinot.client;
+
+import java.util.Arrays;
+import java.util.HashSet;
+import java.util.Set;
+import org.testng.annotations.DataProvider;
+import org.testng.annotations.Test;
+
+import static org.testng.Assert.assertEquals;
+import static org.testng.Assert.assertNotNull;
+import static org.testng.Assert.assertNull;
+import static org.testng.Assert.assertTrue;
+
+
+/**
+ * Tests for the TableNameExtractor class.
+ */
+public class TableNameExtractorTest {
+
+ @Test
+ public void testResolveTableNameWithSingleQuery() {
+ // Test that single queries work correctly
+ String singleQuery = "SELECT * FROM myTable WHERE id > 100";
+
+ String[] tableNames = TableNameExtractor.resolveTableName(singleQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 1, "Should resolve exactly one table");
+ assertEquals(tableNames[0], "myTable", "Should resolve the correct table
name");
+ }
+
+ @Test
+ public void testResolveTableNameWithSingleStatementAlias() {
+ String singleStatementQuery = "SELECT stats.* FROM airlineStats stats
LIMIT 10";
+ String[] tableNames =
TableNameExtractor.resolveTableName(singleStatementQuery);
+
+ assertNotNull(tableNames);
+ assertEquals(tableNames.length, 1);
+ assertEquals(tableNames[0], "airlineStats");
+ }
+
+ @Test
+ public void testResolveTableNameWithMultiStatementQuery() {
+ // Test the fix for issue #11823: CalciteSQLParser error with
multi-statement queries
+ String multiStatementQuery = "SET useMultistageEngine=true;\nSELECT
stats.* FROM airlineStats stats LIMIT 10";
+
+ // This should not throw a ClassCastException anymore
+ String[] tableNames =
TableNameExtractor.resolveTableName(multiStatementQuery);
+
+ // Should successfully resolve the table name
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 1, "Should resolve exactly one table");
+ assertEquals(tableNames[0], "airlineStats", "Should resolve the correct
table name");
+ }
+
+ @Test
+ public void testResolveTableNameWithMultipleSetStatements() {
+ // Test with multiple SET statements
+ String multiSetQuery = "SET useMultistageEngine=true;\nSET
timeoutMs=10000;\nSELECT * FROM testTable";
+
+ String[] tableNames = TableNameExtractor.resolveTableName(multiSetQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 1, "Should resolve exactly one table");
+ assertEquals(tableNames[0], "testTable", "Should resolve the correct table
name");
+ }
+
+ @Test
+ public void testResolveTableNameWithMultipleSetStatementsAndJoin() {
+ String multiStatementQuery = "SET useMultistageEngine=true;\nSET
maxRowsInJoin=1000;\n"
+ + "SELECT stats.* FROM airlineStats stats LIMIT 10";
+ String[] tableNames =
TableNameExtractor.resolveTableName(multiStatementQuery);
+
+ assertNotNull(tableNames, "Table names should be resolved for queries with
multiple SET statements");
+ assertEquals(tableNames.length, 1);
+ assertEquals(tableNames[0], "airlineStats");
+ }
+
+ @Test
+ public void testResolveTableNameWithJoin() {
+ // Test with JOIN queries
+ String joinQuery = "SELECT * FROM table1 t1 JOIN table2 t2 ON t1.id =
t2.id";
+
+ String[] tableNames = TableNameExtractor.resolveTableName(joinQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 2, "Should resolve two tables");
+ assertTrue(Arrays.asList(tableNames).contains("table1"), "Should contain
table1");
+ assertTrue(Arrays.asList(tableNames).contains("table2"), "Should contain
table2");
+ }
+
+ @Test
+ public void testResolveTableNameWithJoinQueryAndSetStatements() {
+ String joinQuery = "SET useMultistageEngine=true;\n"
+ + "SELECT a.col1, b.col2 FROM tableA a JOIN tableB b ON a.id = b.id";
+ String[] tableNames = TableNameExtractor.resolveTableName(joinQuery);
+
+ assertNotNull(tableNames, "Table names should be resolved for join queries
with SET statements");
+ assertEquals(tableNames.length, 2);
+
+ Set<String> expectedTableNames = new HashSet<>(Arrays.asList("tableA",
"tableB"));
+ Set<String> actualTableNames = new HashSet<>(Arrays.asList(tableNames));
+ assertEquals(actualTableNames, expectedTableNames);
+ }
+
+ @Test
+ public void testResolveTableNameWithExplicitAlias() {
+ // Test with explicit AS alias
+ String aliasQuery = "SELECT u.name FROM users AS u WHERE u.active = true";
+
+ String[] tableNames = TableNameExtractor.resolveTableName(aliasQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 1, "Should resolve exactly one table");
+ assertEquals(tableNames[0], "users", "Should resolve the actual table
name, not the alias");
+ }
+
+ @Test
+ public void testResolveTableNameWithImplicitAlias() {
+ // Test with implicit alias (no AS keyword)
+ String implicitAliasQuery = "SELECT o.id, u.name FROM orders o JOIN users
u ON o.user_id = u.id";
+
+ String[] tableNames =
TableNameExtractor.resolveTableName(implicitAliasQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 2, "Should resolve two tables");
+ assertTrue(Arrays.asList(tableNames).contains("orders"), "Should contain
orders table");
+ assertTrue(Arrays.asList(tableNames).contains("users"), "Should contain
users table");
+ }
+
+ @Test
+ public void testResolveTableNameWithCTE() {
+ // Test with Common Table Expression (CTE)
+ String cteQuery = "WITH active_users AS (SELECT * FROM users WHERE active
= true) "
+ + "SELECT au.name FROM active_users au JOIN orders o ON au.id =
o.user_id";
+
+ String[] tableNames = TableNameExtractor.resolveTableName(cteQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 2, "Should resolve two tables");
+ assertTrue(Arrays.asList(tableNames).contains("users"), "Should contain
users table from CTE");
+ assertTrue(Arrays.asList(tableNames).contains("orders"), "Should contain
orders table");
+ }
+
+ @Test
+ public void testResolveTableNameWithNestedCTE() {
+ // Test with nested CTEs
+ String nestedCteQuery = "WITH user_orders AS ("
+ + " SELECT u.id, u.name, o.order_date "
+ + " FROM users u JOIN orders o ON u.id = o.user_id"
+ + "), recent_orders AS ("
+ + " SELECT * FROM user_orders WHERE order_date > '2023-01-01'"
+ + ") "
+ + "SELECT ro.name FROM recent_orders ro JOIN products p ON ro.id =
p.user_id";
+
+ String[] tableNames = TableNameExtractor.resolveTableName(nestedCteQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 3, "Should resolve three tables");
+ assertTrue(Arrays.asList(tableNames).contains("users"), "Should contain
users table");
+ assertTrue(Arrays.asList(tableNames).contains("orders"), "Should contain
orders table");
+ assertTrue(Arrays.asList(tableNames).contains("products"), "Should contain
products table");
+ }
+
+ @Test
+ public void testResolveTableNameWithSubqueryAlias() {
+ // Test with subquery alias
+ String subqueryQuery = "SELECT t.name FROM (SELECT * FROM users WHERE
active = true) AS t "
+ + "JOIN orders o ON t.id = o.user_id";
+
+ String[] tableNames = TableNameExtractor.resolveTableName(subqueryQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 2, "Should resolve two tables");
+ assertTrue(Arrays.asList(tableNames).contains("users"), "Should contain
users table from subquery");
+ assertTrue(Arrays.asList(tableNames).contains("orders"), "Should contain
orders table");
+ }
+
+ @Test
+ public void testResolveTableNameWithComplexJoinAndAliases() {
+ // Test with multiple JOINs and various alias styles
+ String complexQuery = "SELECT u.name, o.total, p.title "
+ + "FROM users AS u "
+ + "INNER JOIN orders o ON u.id = o.user_id "
+ + "LEFT JOIN order_items oi ON o.id = oi.order_id "
+ + "RIGHT JOIN products AS p ON oi.product_id = p.id "
+ + "WHERE u.active = true";
+
+ String[] tableNames = TableNameExtractor.resolveTableName(complexQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 4, "Should resolve four tables");
+ assertTrue(Arrays.asList(tableNames).contains("users"), "Should contain
users table");
+ assertTrue(Arrays.asList(tableNames).contains("orders"), "Should contain
orders table");
+ assertTrue(Arrays.asList(tableNames).contains("order_items"), "Should
contain order_items table");
+ assertTrue(Arrays.asList(tableNames).contains("products"), "Should contain
products table");
+ }
+
+ @Test
+ public void testResolveTableNameWithJoinConditionSubquery() {
+ // Test with subquery in join condition
+ String joinSubqueryQuery = "SELECT u.name, o.total "
+ + "FROM users u "
+ + "JOIN orders o ON u.id = o.user_id "
+ + "AND o.id IN (SELECT order_id FROM order_items WHERE quantity > 5)";
+
+ String[] tableNames =
TableNameExtractor.resolveTableName(joinSubqueryQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 3, "Should resolve three tables");
+ assertTrue(Arrays.asList(tableNames).contains("users"), "Should contain
users table");
+ assertTrue(Arrays.asList(tableNames).contains("orders"), "Should contain
orders table");
+ assertTrue(Arrays.asList(tableNames).contains("order_items"),
+ "Should contain order_items table from subquery");
+ }
+
+ @Test
+ public void testResolveTableNameWithOrderBy() {
+ // Test with ORDER BY clause
+ String orderByQuery = "SELECT * FROM users ORDER BY name";
+ String[] tableNames = TableNameExtractor.resolveTableName(orderByQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 1, "Should resolve exactly one table");
+ assertEquals(tableNames[0], "users", "Should resolve the correct table
name");
+ }
+
+ @Test
+ public void testResolveTableNameWithOrderBySubquery() {
+ // Test with subquery in ORDER BY clause (rare but possible)
+ String orderBySubqueryQuery = "SELECT * FROM users u ORDER BY "
+ + "(SELECT COUNT(*) FROM orders o WHERE o.user_id = u.id)";
+ String[] tableNames =
TableNameExtractor.resolveTableName(orderBySubqueryQuery);
+
+ assertNotNull(tableNames, "Table names should not be null");
+ assertEquals(tableNames.length, 2, "Should resolve two tables");
+ assertTrue(Arrays.asList(tableNames).contains("users"), "Should contain
users table");
+ assertTrue(Arrays.asList(tableNames).contains("orders"), "Should contain
orders table");
+ }
+
+ @Test(expectedExceptions = RuntimeException.class)
+ public void testResolveTableNameWithInvalidQuery() {
+ String[] tableNames = TableNameExtractor.resolveTableName("INVALID SQL
QUERY");
+ }
+
+ @Test(expectedExceptions = RuntimeException.class)
+ public void testResolveTableNameWithOnlySetStatements() {
+ TableNameExtractor.resolveTableName("SET useMultistageEngine=true;");
+ }
+
+ @Test(expectedExceptions = RuntimeException.class)
+ public void testResolveTableNameWithNullQuery() {
+ TableNameExtractor.resolveTableName(null);
+ }
+
+ @Test(expectedExceptions = RuntimeException.class)
+ public void testResolveTableNameWithEmptyQuery() {
+ TableNameExtractor.resolveTableName("");
+ }
+
+ /**
+ * Data provider for SQL queries and their expected table names.
+ * This makes it easy to add new test cases by simply adding entries to this
array.
+ *
+ * @return Object[][] where each Object[] contains: [testName (String),
sqlQuery (String),
+ * expectedTableNames (String[] or null)]
+ * Each entry in the returned array is an Object[] of length 3, structured
as follows:
+ * <ul>
+ * <li><b>testName</b> (String): A descriptive name for the test case.</li>
+ * <li><b>sqlQuery</b> (String): The SQL query to be tested.</li>
+ * <li><b>expectedTableNames</b> (String[]): The expected table names to be
extracted from the query,
+ * or {@code null} if no table names are expected (e.g., for invalid or
empty queries).</li>
+ * </ul>
+ * This makes it easy to add new test cases by simply adding entries to this
array.
+ */
+ @DataProvider(name = "sqlQueries")
+ public Object[][] sqlQueriesDataProvider() {
+ return new Object[][]{
+ // Basic queries
+ {
+ "Simple SELECT",
+ "SELECT * FROM users",
+ new String[]{"users"},
+ false
+ },
+ {
+ "SELECT with WHERE",
+ "SELECT name FROM users WHERE age > 18",
+ new String[]{"users"},
+ false
+ },
+ {
+ "SELECT with LIMIT",
+ "SELECT * FROM products LIMIT 10",
+ new String[]{"products"},
+ false
+ },
+
+ // Aliases
+ {
+ "Explicit alias",
+ "SELECT u.name FROM users u",
+ new String[]{"users"},
+ false
+ },
+ {
+ "Implicit alias",
+ "SELECT u.name FROM users u JOIN orders o ON u.id = o.user_id",
+ new String[]{"users", "orders"},
+ false
+ },
+ {
+ "Multiple aliases",
+ "SELECT t1.col1, t2.col2 FROM table1 t1, table2 t2",
+ new String[]{"table1", "table2"},
+ false
+ },
+
+ // JOINs
+ {
+ "INNER JOIN",
+ "SELECT * FROM users u INNER JOIN orders o ON u.id = o.user_id",
+ new String[]{"users", "orders"},
+ false
+ },
+ {
+ "LEFT JOIN",
+ "SELECT * FROM users u LEFT JOIN orders o ON u.id = o.user_id",
+ new String[]{"users", "orders"},
+ false
+ },
+ {
+ "RIGHT JOIN",
+ "SELECT * FROM users u RIGHT JOIN orders o ON u.id = o.user_id",
+ new String[]{"users", "orders"},
+ false
+ },
+ {
+ "FULL JOIN",
+ "SELECT * FROM users u FULL JOIN orders o ON u.id = o.user_id",
+ new String[]{"users", "orders"},
+ false
+ },
+ {
+ "Multiple JOINs",
+ "SELECT * FROM users u JOIN orders o ON u.id = o.user_id JOIN
products p ON o.product_id = p.id",
+ new String[]{"users", "orders", "products"},
+ false
+ },
+
+ // CTEs (Common Table Expressions)
+ {
+ "Simple CTE",
+ "WITH active_users AS (SELECT * FROM users WHERE active = true) "
+ + "SELECT * FROM active_users",
+ new String[]{"users"},
+ false
+ },
+ {
+ "Multiple CTEs",
+ "WITH active_users AS (SELECT * FROM users WHERE active = true), "
+ + "recent_orders AS (SELECT * FROM orders WHERE created_date >
'2024-01-01') "
+ + "SELECT au.name, ro.order_id FROM active_users au JOIN
recent_orders ro ON au.id = ro.user_id",
+ new String[]{"users", "orders"},
+ false
+ },
+ {
+ "Nested CTE",
+ "WITH user_stats AS (SELECT user_id, COUNT(*) as order_count FROM
orders GROUP BY user_id), "
+ + "top_users AS (SELECT * FROM user_stats WHERE order_count >
10) "
+ + "SELECT u.name, tu.order_count FROM users u JOIN top_users
tu ON u.id = tu.user_id",
+ new String[]{"orders", "users"},
+ false
+ },
+
+ // Subqueries
+ {
+ "Subquery in FROM",
+ "SELECT * FROM (SELECT * FROM users WHERE active = true) AS
active_users",
+ new String[]{"users"},
+ false
+ },
+ {
+ "Subquery in JOIN",
+ "SELECT u.name FROM users u JOIN (SELECT user_id FROM orders WHERE
amount > 100) o ON u.id = o.user_id",
+ new String[]{"users", "orders"},
+ false
+ },
+ {
+ "Subquery in WHERE",
+ "SELECT * FROM users WHERE id IN (SELECT user_id FROM orders WHERE
amount > 100)",
+ new String[]{"users", "orders"},
+ false
+ },
+
+ // Multi-statement queries
+ {
+ "SET + SELECT",
+ "SET useMultistageEngine=true; SELECT * FROM users",
+ new String[]{"users"},
+ false
+ },
+ {
+ "Multiple SETs",
+ "SET useMultistageEngine=true; SET timeoutMs=10000; SELECT * FROM
products",
+ new String[]{"products"},
+ false
+ },
+ {
+ "SET + JOIN",
+ "SET useMultistageEngine=true; SELECT u.name FROM users u JOIN
orders o ON u.id = o.user_id",
+ new String[]{"users", "orders"},
+ false
+ },
+
+ // Complex queries
+ {
+ "Complex query with all features",
+ "SET useMultistageEngine=true; "
+ + "WITH user_stats AS (SELECT user_id, COUNT(*) as order_count
FROM orders GROUP BY user_id) "
+ + "SELECT u.name, us.order_count "
+ + "FROM users u "
+ + "JOIN user_stats us ON u.id = us.user_id "
+ + "JOIN (SELECT user_id FROM products WHERE category =
'electronics') p ON u.id = p.user_id "
+ + "WHERE us.order_count > 5 "
+ + "ORDER BY us.order_count DESC",
+ new String[]{"orders", "users", "products"},
+ false
+ },
+
+ // Edge cases
+ {
+ "Table with underscore",
+ "SELECT * FROM user_profiles",
+ new String[]{"user_profiles"},
+ false
+ },
+ {
+ "Table with numbers",
+ "SELECT * FROM table_2024",
+ new String[]{"table_2024"},
+ false
+ },
+ {
+ "Multiple tables same name",
+ "SELECT * FROM users u1 JOIN users u2 ON u1.id = u2.referrer_id",
+ new String[]{"users"},
+ false
+ },
+
+ // Queries that should throw exception
+ {
+ "Only SET statements",
+ "SET useMultistageEngine=true; SET timeoutMs=10000;",
+ null,
+ true
+ },
+ {
+ "Empty query",
+ "",
+ null,
+ true
+ },
+ {
+ "Null query",
+ null,
+ null,
+ true
+ },
+ {
+ "Invalid SQL",
+ "INVALID SQL QUERY",
+ null,
+ true
+ },
+
+ // Additional queries from BaseClusterIntegrationTestSet
+ // Basic aggregation queries
+ {
+ "SUM INTEGER",
+ "SELECT SUM(ActualElapsedTime) FROM mytable",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "SUM FLOAT",
+ "SELECT SUM(CAST(ActualElapsedTime AS FLOAT)) FROM mytable",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "SUM DOUBLE",
+ "SELECT SUM(CAST(ActualElapsedTime AS DOUBLE)) FROM mytable",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "COUNT with WHERE",
+ "SELECT COUNT(*) FROM mytable WHERE CarrierDelay=15 AND ArrDelay >
CarrierDelay LIMIT 1",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "MAX MIN",
+ "SELECT MAX(Quarter), MAX(FlightNum) FROM mytable LIMIT 8",
+ new String[]{"mytable"},
+ false
+ },
+
+ // Complex SELECT with arithmetic and functions
+ {
+ "Arithmetic in SELECT",
+ "SELECT ArrDelay, CarrierDelay, (ArrDelay - CarrierDelay) AS diff,
"
+ + "substring(DestStateName, 4, 8) as stateSubStr FROM mytable
WHERE CarrierDelay=15 AND "
+ + "ArrDelay > CarrierDelay ORDER BY diff, ArrDelay,
CarrierDelay LIMIT 100000",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "Arithmetic operations",
+ "SELECT ArrTime, ArrTime * 10 FROM mytable WHERE DaysSinceEpoch >=
16312",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "Complex arithmetic",
+ "SELECT ArrTime, ArrTime + ArrTime * 9 - ArrTime * 10 FROM mytable
WHERE DaysSinceEpoch >= 16312",
+ new String[]{"mytable"},
+ false
+ },
+
+ // GROUP BY queries
+ {
+ "GROUP BY with aggregation",
+ "SELECT COUNT(*), MAX(ArrTime), MIN(ArrTime), DaysSinceEpoch FROM
mytable GROUP BY DaysSinceEpoch",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "GROUP BY with ORDER BY",
+ "SELECT DaysSinceEpoch, COUNT(*), MAX(ArrTime), MIN(ArrTime) FROM
mytable GROUP BY DaysSinceEpoch",
+ new String[]{"mytable"},
+ false
+ },
+
+ // HAVING clauses
+ {
+ "HAVING clause",
+ "SELECT COUNT(*) AS Count, DaysSinceEpoch FROM mytable GROUP BY
DaysSinceEpoch HAVING Count > 350",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "HAVING with arithmetic",
+ "SELECT MAX(ArrDelay) - MAX(AirTime) AS Diff, DaysSinceEpoch FROM
mytable "
+ + "GROUP BY DaysSinceEpoch HAVING Diff * 2 > 1000 ORDER BY
Diff ASC",
+ new String[]{"mytable"},
+ false
+ },
+
+ // LIKE patterns
+ {
+ "LIKE pattern",
+ "SELECT count(*) FROM mytable WHERE OriginState LIKE 'A_'",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "LIKE with %",
+ "SELECT count(*) FROM mytable WHERE DestCityName LIKE 'C%'",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "LIKE with _ and %",
+ "SELECT count(*) FROM mytable WHERE DestCityName LIKE '_h%'",
+ new String[]{"mytable"},
+ false
+ },
+
+ // NOT operators
+ {
+ "NOT BETWEEN",
+ "SELECT count(*) FROM mytable WHERE OriginState NOT BETWEEN 'DE'
AND 'PA'",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "NOT LIKE",
+ "SELECT count(*) FROM mytable WHERE OriginState NOT LIKE 'A_'",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "NOT with parentheses",
+ "SELECT count(*) FROM mytable WHERE NOT (DaysSinceEpoch = 16312
AND Carrier = 'DL')",
+ new String[]{"mytable"},
+ false
+ },
+
+ // CAST operations
+ {
+ "CAST operations",
+ "SELECT SUM(CAST(CAST(ArrTime AS VARCHAR) AS LONG)) FROM mytable "
+ + "WHERE DaysSinceEpoch <> 16312 AND Carrier = 'DL'",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "CAST with ORDER BY",
+ "SELECT CAST(CAST(ArrTime AS STRING) AS BIGINT) FROM mytable "
+ + "WHERE DaysSinceEpoch <> 16312 AND Carrier = 'DL' ORDER BY
ArrTime DESC",
+ new String[]{"mytable"},
+ false
+ },
+
+ // DateTime functions
+ {
+ "DateTimeConvert",
+ "SELECT
dateTimeConvert(DaysSinceEpoch,'1:DAYS:EPOCH','1:HOURS:EPOCH','1:HOURS'),
COUNT(*) FROM mytable "
+ + "GROUP BY
dateTimeConvert(DaysSinceEpoch,'1:DAYS:EPOCH','1:HOURS:EPOCH','1:HOURS') "
+ + "ORDER BY COUNT(*),
dateTimeConvert(DaysSinceEpoch,'1:DAYS:EPOCH','1:HOURS:EPOCH','1:HOURS') DESC",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "TimeConvert",
+ "SELECT timeConvert(DaysSinceEpoch,'DAYS','SECONDS'), COUNT(*)
FROM mytable "
+ + "GROUP BY timeConvert(DaysSinceEpoch,'DAYS','SECONDS') "
+ + "ORDER BY COUNT(*),
timeConvert(DaysSinceEpoch,'DAYS','SECONDS') DESC",
+ new String[]{"mytable"},
+ false
+ },
+
+ // CASE WHEN statements
+ {
+ "CASE WHEN with aggregation",
+ "SELECT AirlineID, "
+ + "CASE WHEN Sum(ArrDelay) < 0 THEN 0 WHEN SUM(ArrDelay) > 0
THEN SUM(ArrDelay) END AS SumArrDelay "
+ + "FROM mytable GROUP BY AirlineID",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "CASE WHEN without GROUP BY",
+ "SELECT CASE WHEN Sum(ArrDelay) < 0 THEN 0 WHEN SUM(ArrDelay) > 0
THEN SUM(ArrDelay) END AS SumArrDelay "
+ + "FROM mytable",
+ new String[]{"mytable"},
+ false
+ },
+
+ // Post-aggregation operations
+ {
+ "Post-aggregation in ORDER BY",
+ "SELECT MAX(ArrTime) FROM mytable GROUP BY DaysSinceEpoch ORDER BY
MAX(ArrTime) - MIN(ArrTime)",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "Post-aggregation in SELECT",
+ "SELECT MAX(ArrDelay) + MAX(AirTime) FROM mytable",
+ new String[]{"mytable"},
+ false
+ },
+
+ // Virtual columns (these should be treated as regular columns for
table name extraction)
+ {
+ "Virtual columns",
+ "SELECT $docId, $segmentName, $hostName FROM mytable",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "Virtual columns with WHERE",
+ "SELECT $docId, $segmentName, $hostName FROM mytable WHERE $docId
< 5 LIMIT 50",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "Virtual columns with GROUP BY",
+ "SELECT max($docId) FROM mytable GROUP BY $segmentName",
+ new String[]{"mytable"},
+ false
+ },
+
+ // Complex WHERE conditions
+ {
+ "Complex WHERE with multiple conditions",
+ "SELECT count(*) FROM mytable WHERE AirlineID > 20355 AND "
+ + "OriginState BETWEEN 'PA' AND 'DE' AND DepTime <> 2202 LIMIT
21",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "WHERE with arithmetic",
+ "SELECT ArrTime, ArrTime + ArrTime * 9 - ArrTime * 10 FROM mytable
WHERE ArrTime - 100 > 0",
+ new String[]{"mytable"},
+ false
+ },
+
+ // Subquery patterns (from V2 tests)
+ {
+ "IN_SUBQUERY",
+ "SELECT COUNT(*) FROM mytable WHERE INSUBQUERY(DestAirportID, "
+ + "'SELECT IDSET(DestAirportID) FROM mytable WHERE
DaysSinceEpoch = 16430') = 1",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "NOT IN_SUBQUERY",
+ "SELECT COUNT(*) FROM mytable WHERE INSUBQUERY(DestAirportID, "
+ + "'SELECT IDSET(DestAirportID) FROM mytable WHERE
DaysSinceEpoch = 16430') = 0",
+ new String[]{"mytable"},
+ false
+ },
+
+ // Multi-value column queries
+ {
+ "Multi-value IN",
+ "SELECT DistanceGroup FROM mytable WHERE \"Month\" BETWEEN 1 AND 1
AND "
+ + "arrayToMV(DivAirportSeqIDs) IN (1078102, 1142303, 1530402,
1172102, 1291503) OR SecurityDelay IN "
+ + "(1, 0, 14, -9999) LIMIT 10",
+ new String[]{"mytable"},
+ false
+ },
+
+ // Options and hints
+ {
+ "Query with options",
+ "SELECT count(*) FROM mytable WHERE OriginState LIKE 'A_'
option(orderedPreferredPools=0|1)",
+ new String[]{"mytable"},
+ false
+ },
+ {
+ "SET with query",
+ "SET orderedPreferredPools='0 | 1'; SELECT count(*) FROM mytable
WHERE OriginState LIKE 'A_'",
+ new String[]{"mytable"},
+ false
+ }
+ };
+ }
+
+ /**
+ * Test method that uses the DataProvider to test multiple SQL queries.
+ * This makes it easy to add new test cases by simply adding entries to the
data provider.
+ *
+ * @param testName The name of the test case for better reporting
+ * @param sqlQuery The SQL query to test
+ * @param expectedTableNames The expected table names that should be
extracted
+ */
+ @Test(dataProvider = "sqlQueries")
+ public void testResolveTableNameWithDataProvider(String testName, String
sqlQuery, String[] expectedTableNames,
+ boolean throwException) {
+ try {
+ // Extract table names from the SQL query
+ String[] actualTableNames =
TableNameExtractor.resolveTableName(sqlQuery);
+
+ if (expectedTableNames == null) {
+ // For queries that should return null (invalid, empty, etc.)
+ assertNull(actualTableNames, "Query should return null: " + testName);
+ } else {
+ // For valid queries, check that we got the expected table names
+ assertNotNull(actualTableNames, "Table names should not be null for: "
+ testName);
+ assertEquals(actualTableNames.length, expectedTableNames.length,
+ "Should extract correct number of tables for: " + testName);
+
+ // Convert arrays to sets for order-independent comparison
+ Set<String> actualSet = new HashSet<>(Arrays.asList(actualTableNames));
+ Set<String> expectedSet = new
HashSet<>(Arrays.asList(expectedTableNames));
+
+ assertEquals(actualSet, expectedSet,
+ "Should extract correct table names for: " + testName);
+ }
+ } catch (Exception e) {
+ assertTrue(throwException);
+ }
+ }
+}
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