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new a5a092ab9f [feature](nereids)support 'ISNULL' expression (#14967)
a5a092ab9f is described below
commit a5a092ab9f63b477892da3c8f357e8d82476a3cb
Author: minghong <[email protected]>
AuthorDate: Mon Dec 12 22:38:54 2022 +0800
[feature](nereids)support 'ISNULL' expression (#14967)
---
fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisLexer.g4 | 1 +
fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisParser.g4 | 2 ++
.../java/org/apache/doris/nereids/parser/LogicalPlanBuilder.java | 6 ++++++
3 files changed, 9 insertions(+)
diff --git a/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisLexer.g4
b/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisLexer.g4
index a38a56c160..87a452b699 100644
--- a/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisLexer.g4
+++ b/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisLexer.g4
@@ -215,6 +215,7 @@ INTERSECT: 'INTERSECT';
INTERVAL: 'INTERVAL';
INTO: 'INTO';
IS: 'IS';
+ISNULL: 'ISNULL';
ITEMS: 'ITEMS';
JOIN: 'JOIN';
KEYS: 'KEYS';
diff --git a/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisParser.g4
b/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisParser.g4
index a5574ec63c..19543bce74 100644
--- a/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisParser.g4
+++ b/fe/fe-core/src/main/antlr4/org/apache/doris/nereids/DorisParser.g4
@@ -241,6 +241,7 @@ expression
booleanExpression
: NOT booleanExpression #logicalNot
| EXISTS LEFT_PAREN query RIGHT_PAREN #exist
+ | ISNULL LEFT_PAREN valueExpression RIGHT_PAREN #isnull
| valueExpression predicate? #predicated
| left=booleanExpression operator=AND right=booleanExpression
#logicalBinary
| left=booleanExpression operator=OR right=booleanExpression
#logicalBinary
@@ -469,6 +470,7 @@ ansiNonReserved
| INPUTFORMAT
| INSERT
| INTERVAL
+ | ISNULL
| ITEMS
| KEYS
| LAST
diff --git
a/fe/fe-core/src/main/java/org/apache/doris/nereids/parser/LogicalPlanBuilder.java
b/fe/fe-core/src/main/java/org/apache/doris/nereids/parser/LogicalPlanBuilder.java
index 300784cdff..f824f0e875 100644
---
a/fe/fe-core/src/main/java/org/apache/doris/nereids/parser/LogicalPlanBuilder.java
+++
b/fe/fe-core/src/main/java/org/apache/doris/nereids/parser/LogicalPlanBuilder.java
@@ -48,6 +48,7 @@ import
org.apache.doris.nereids.DorisParser.IdentifierListContext;
import org.apache.doris.nereids.DorisParser.IdentifierSeqContext;
import org.apache.doris.nereids.DorisParser.IntegerLiteralContext;
import org.apache.doris.nereids.DorisParser.IntervalContext;
+import org.apache.doris.nereids.DorisParser.IsnullContext;
import org.apache.doris.nereids.DorisParser.JoinCriteriaContext;
import org.apache.doris.nereids.DorisParser.JoinRelationContext;
import org.apache.doris.nereids.DorisParser.LimitClauseContext;
@@ -1329,6 +1330,11 @@ public class LogicalPlanBuilder extends
DorisParserBaseVisitor<Object> {
return ParserUtils.withOrigin(context, () -> new
Exists(typedVisit(context.query()), false));
}
+ @Override
+ public Expression visitIsnull(IsnullContext context) {
+ return ParserUtils.withOrigin(context, () -> new
IsNull(typedVisit(context.valueExpression())));
+ }
+
public List<Expression> withInList(PredicateContext ctx) {
return
ctx.expression().stream().map(this::getExpression).collect(ImmutableList.toImmutableList());
}
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