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new 379e4910547 [FLINK-32232][table] Supports parse truncate table
statement (#22691)
379e4910547 is described below
commit 379e4910547cbbcf79dcbb251aa4b3c1cf80c6a0
Author: yuxia Luo <[email protected]>
AuthorDate: Thu Jun 8 16:30:14 2023 +0800
[FLINK-32232][table] Supports parse truncate table statement (#22691)
---
.../src/main/codegen/data/Parser.tdd | 2 +
.../src/main/codegen/includes/parserImpls.ftl | 15 +++++
.../flink/sql/parser/dml/SqlTruncateTable.java | 71 ++++++++++++++++++++++
.../flink/sql/parser/FlinkSqlParserImplTest.java | 5 ++
4 files changed, 93 insertions(+)
diff --git a/flink-table/flink-sql-parser/src/main/codegen/data/Parser.tdd
b/flink-table/flink-sql-parser/src/main/codegen/data/Parser.tdd
index 6715f858666..27289112a3e 100644
--- a/flink-table/flink-sql-parser/src/main/codegen/data/Parser.tdd
+++ b/flink-table/flink-sql-parser/src/main/codegen/data/Parser.tdd
@@ -81,6 +81,7 @@
"org.apache.flink.sql.parser.dml.RichSqlInsert"
"org.apache.flink.sql.parser.dml.RichSqlInsertKeyword"
"org.apache.flink.sql.parser.dml.SqlBeginStatementSet"
+ "org.apache.flink.sql.parser.dml.SqlTruncateTable"
"org.apache.flink.sql.parser.dml.SqlCompileAndExecutePlan"
"org.apache.flink.sql.parser.dml.SqlEndStatementSet"
"org.apache.flink.sql.parser.dml.SqlExecute"
@@ -575,6 +576,7 @@
"SqlAnalyzeTable()"
"SqlStopJob()"
"SqlShowJobs()"
+ "SqlTruncateTable()"
]
# List of methods for parsing custom literals.
diff --git
a/flink-table/flink-sql-parser/src/main/codegen/includes/parserImpls.ftl
b/flink-table/flink-sql-parser/src/main/codegen/includes/parserImpls.ftl
index a7954f6182d..60cb2e038c9 100644
--- a/flink-table/flink-sql-parser/src/main/codegen/includes/parserImpls.ftl
+++ b/flink-table/flink-sql-parser/src/main/codegen/includes/parserImpls.ftl
@@ -2437,3 +2437,18 @@ SqlStopJob SqlStopJob() :
return new SqlStopJob(getPos(), jobId, isWithSavepoint, isWithDrain);
}
}
+
+/**
+ * Parses a TRUNCATE TABLE statement.
+ */
+SqlTruncateTable SqlTruncateTable() :
+{
+ SqlIdentifier sqlIdentifier;
+}
+{
+ <TRUNCATE> <TABLE>
+ sqlIdentifier = CompoundIdentifier()
+ {
+ return new SqlTruncateTable(getPos(), sqlIdentifier);
+ }
+}
diff --git
a/flink-table/flink-sql-parser/src/main/java/org/apache/flink/sql/parser/dml/SqlTruncateTable.java
b/flink-table/flink-sql-parser/src/main/java/org/apache/flink/sql/parser/dml/SqlTruncateTable.java
new file mode 100644
index 00000000000..6084f6cc1b6
--- /dev/null
+++
b/flink-table/flink-sql-parser/src/main/java/org/apache/flink/sql/parser/dml/SqlTruncateTable.java
@@ -0,0 +1,71 @@
+/*
+ * 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.flink.sql.parser.dml;
+
+import org.apache.calcite.sql.SqlCall;
+import org.apache.calcite.sql.SqlIdentifier;
+import org.apache.calcite.sql.SqlKind;
+import org.apache.calcite.sql.SqlNode;
+import org.apache.calcite.sql.SqlOperator;
+import org.apache.calcite.sql.SqlSpecialOperator;
+import org.apache.calcite.sql.SqlWriter;
+import org.apache.calcite.sql.parser.SqlParserPos;
+
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * SqlNode to describe TRUNCATE TABLE statement.
+ *
+ * <p>We parse TRUNCATE TABLE statement in Flink since Calcite doesn't support
TRUNCATE TABLE
+ * statement currently. Should remove the parse logic for TRUNCATE TABLE
statement from Flink after
+ * the Calcite used by Flink includes [CALCITE-5688].
+ */
+public class SqlTruncateTable extends SqlCall {
+
+ private final SqlIdentifier tableNameIdentifier;
+
+ public static final SqlSpecialOperator OPERATOR =
+ new SqlSpecialOperator("TRUNCATE TABLE", SqlKind.OTHER);
+
+ public SqlTruncateTable(SqlParserPos pos, SqlIdentifier
tableNameIdentifier) {
+ super(pos);
+ this.tableNameIdentifier = tableNameIdentifier;
+ }
+
+ @Override
+ public SqlOperator getOperator() {
+ return OPERATOR;
+ }
+
+ @Override
+ public List<SqlNode> getOperandList() {
+ return Collections.singletonList(tableNameIdentifier);
+ }
+
+ public String[] fullTableName() {
+ return tableNameIdentifier.names.toArray(new String[0]);
+ }
+
+ @Override
+ public void unparse(SqlWriter writer, int leftPrec, int rightPrec) {
+ writer.keyword("TRUNCATE TABLE");
+ tableNameIdentifier.unparse(writer, leftPrec, rightPrec);
+ }
+}
diff --git
a/flink-table/flink-sql-parser/src/test/java/org/apache/flink/sql/parser/FlinkSqlParserImplTest.java
b/flink-table/flink-sql-parser/src/test/java/org/apache/flink/sql/parser/FlinkSqlParserImplTest.java
index 86901433b68..1074bc681e3 100644
---
a/flink-table/flink-sql-parser/src/test/java/org/apache/flink/sql/parser/FlinkSqlParserImplTest.java
+++
b/flink-table/flink-sql-parser/src/test/java/org/apache/flink/sql/parser/FlinkSqlParserImplTest.java
@@ -2415,6 +2415,11 @@ class FlinkSqlParserImplTest extends SqlParserTest {
.fails("WITH DRAIN could only be used after WITH SAVEPOINT.");
}
+ @Test
+ void testTruncateTable() {
+ sql("truncate table t1").ok("TRUNCATE TABLE `T1`");
+ }
+
public static BaseMatcher<SqlNode> validated(String validatedSql) {
return new TypeSafeDiagnosingMatcher<SqlNode>() {
@Override
