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new b4f0f39e77 [feature](Nereids) implement uncheckedCast method in
VarcharLiteral (#12468)
b4f0f39e77 is described below
commit b4f0f39e77a51fd5b4490447aa45f01464b1330d
Author: Kikyou1997 <33112463+kikyou1...@users.noreply.github.com>
AuthorDate: Fri Sep 9 00:33:37 2022 +0800
[feature](Nereids) implement uncheckedCast method in VarcharLiteral (#12468)
Implement uncheckedCast on VarcharLiteral for a temp way to let
TimestampArithmetic work.
We should remove these code and do implicit cast in TypeCoercion rule in
future.
---
.../trees/expressions/literal/VarcharLiteral.java | 30 ++++++++++++-
.../doris/nereids/util/AnalyzeFunctionTest.java | 52 ++++++++++++++++++++++
.../org/apache/doris/nereids/util/PlanChecker.java | 4 ++
3 files changed, 85 insertions(+), 1 deletion(-)
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/literal/VarcharLiteral.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/literal/VarcharLiteral.java
index 99e40811d7..393214aa18 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/literal/VarcharLiteral.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/trees/expressions/literal/VarcharLiteral.java
@@ -19,7 +19,10 @@ package org.apache.doris.nereids.trees.expressions.literal;
import org.apache.doris.analysis.LiteralExpr;
import org.apache.doris.analysis.StringLiteral;
+import org.apache.doris.nereids.exceptions.AnalysisException;
+import org.apache.doris.nereids.trees.expressions.Expression;
import org.apache.doris.nereids.trees.expressions.visitor.ExpressionVisitor;
+import org.apache.doris.nereids.types.DataType;
import org.apache.doris.nereids.types.VarcharType;
import com.google.common.base.Preconditions;
@@ -27,7 +30,8 @@ import com.google.common.base.Preconditions;
import java.util.Objects;
/**
- * varchar type literal
+ * Varchar type literal, in theory,
+ * the difference from StringLiteral is that VarcharLiteral keeps the length
information.
*/
public class VarcharLiteral extends Literal {
@@ -63,4 +67,28 @@ public class VarcharLiteral extends Literal {
public String toString() {
return "'" + value + "'";
}
+
+ // Temporary way to process type coercion in TimestampArithmetic, should
be replaced by TypeCoercion rule.
+ @Override
+ protected Expression uncheckedCastTo(DataType targetType) throws
AnalysisException {
+ if (getDataType().equals(targetType)) {
+ return this;
+ }
+ if (targetType.isDateType()) {
+ return convertToDate(targetType);
+ } else if (targetType.isIntType()) {
+ return new IntegerLiteral(Integer.parseInt(value));
+ }
+ return this;
+ }
+
+ private DateLiteral convertToDate(DataType targetType) throws
AnalysisException {
+ DateLiteral dateLiteral = null;
+ if (targetType.isDate()) {
+ dateLiteral = new DateLiteral(value);
+ } else if (targetType.isDateTime()) {
+ dateLiteral = new DateTimeLiteral(value);
+ }
+ return dateLiteral;
+ }
}
diff --git
a/fe/fe-core/src/test/java/org/apache/doris/nereids/util/AnalyzeFunctionTest.java
b/fe/fe-core/src/test/java/org/apache/doris/nereids/util/AnalyzeFunctionTest.java
new file mode 100644
index 0000000000..878d57fe22
--- /dev/null
+++
b/fe/fe-core/src/test/java/org/apache/doris/nereids/util/AnalyzeFunctionTest.java
@@ -0,0 +1,52 @@
+// 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.doris.nereids.util;
+
+import org.apache.doris.nereids.parser.NereidsParser;
+import org.apache.doris.nereids.trees.expressions.literal.VarcharLiteral;
+import org.apache.doris.nereids.trees.plans.logical.LogicalFilter;
+import org.apache.doris.nereids.trees.plans.logical.LogicalPlan;
+import org.apache.doris.utframe.TestWithFeService;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.Set;
+
+public class AnalyzeFunctionTest extends TestWithFeService {
+
+ private final NereidsParser parser = new NereidsParser();
+
+ @Override
+ protected void runBeforeAll() throws Exception {
+ createDatabase("test");
+ connectContext.setDatabase("default_cluster:test");
+ createTables("CREATE TABLE t1 (col1 date, col2 int) DISTRIBUTED BY
HASH(col2)\n" + "BUCKETS 1\n" + "PROPERTIES(\n"
+ + " \"replication_num\"=\"1\"\n" + ");");
+ }
+
+ @Test
+ public void testTimeArithmExpr() {
+ String sql = "SELECT * FROM t1 WHERE col1 < date '1994-01-01' +
interval '1' year";
+ LogicalPlan logicalPlan = (LogicalPlan)
PlanChecker.from(connectContext)
+ .analyze(sql).getCascadesContext().getMemo().copyOut();
+ Assertions.assertTrue(logicalPlan
+ .<Set<LogicalFilter>>collect(LogicalFilter.class::isInstance)
+ .stream().map(f ->
f.getPredicates()).noneMatch(VarcharLiteral.class::isInstance));
+ }
+}
diff --git
a/fe/fe-core/src/test/java/org/apache/doris/nereids/util/PlanChecker.java
b/fe/fe-core/src/test/java/org/apache/doris/nereids/util/PlanChecker.java
index af4c86277c..d23d43e3e3 100644
--- a/fe/fe-core/src/test/java/org/apache/doris/nereids/util/PlanChecker.java
+++ b/fe/fe-core/src/test/java/org/apache/doris/nereids/util/PlanChecker.java
@@ -270,4 +270,8 @@ public class PlanChecker {
public static PlanChecker from(CascadesContext cascadesContext) {
return new PlanChecker(cascadesContext);
}
+
+ public CascadesContext getCascadesContext() {
+ return cascadesContext;
+ }
}
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