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Support BETWEEN in Delta check constraints
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113 changes: 113 additions & 0 deletions
113
...trino-delta-lake/src/main/java/io/trino/plugin/deltalake/expression/BetweenPredicate.java
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/* | ||
* Licensed 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 io.trino.plugin.deltalake.expression; | ||
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import java.util.Objects; | ||
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import static com.google.common.base.MoreObjects.toStringHelper; | ||
import static java.util.Objects.requireNonNull; | ||
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public class BetweenPredicate | ||
extends SparkExpression | ||
{ | ||
public enum Operator | ||
{ | ||
BETWEEN("BETWEEN"), | ||
NOT_BETWEEN("NOT BETWEEN"); | ||
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private final String value; | ||
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Operator(String value) | ||
{ | ||
this.value = value; | ||
} | ||
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public String getValue() | ||
{ | ||
return value; | ||
} | ||
} | ||
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private final Operator operator; | ||
private final SparkExpression value; | ||
private final SparkExpression min; | ||
private final SparkExpression max; | ||
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public BetweenPredicate(Operator operator, SparkExpression value, SparkExpression min, SparkExpression max) | ||
{ | ||
this.operator = requireNonNull(operator, "operator is null"); | ||
this.value = requireNonNull(value, "value is null"); | ||
this.min = requireNonNull(min, "min is null"); | ||
this.max = requireNonNull(max, "max is null"); | ||
} | ||
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public Operator getOperator() | ||
{ | ||
return operator; | ||
} | ||
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public SparkExpression getValue() | ||
{ | ||
return value; | ||
} | ||
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public SparkExpression getMin() | ||
{ | ||
return min; | ||
} | ||
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public SparkExpression getMax() | ||
{ | ||
return max; | ||
} | ||
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@Override | ||
<R, C> R accept(SparkExpressionTreeVisitor<R, C> visitor, C context) | ||
{ | ||
return visitor.visitBetweenExpression(this, context); | ||
} | ||
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@Override | ||
public boolean equals(Object o) | ||
{ | ||
if (this == o) { | ||
return true; | ||
} | ||
if (o == null || getClass() != o.getClass()) { | ||
return false; | ||
} | ||
BetweenPredicate that = (BetweenPredicate) o; | ||
return operator == that.operator && | ||
Objects.equals(value, that.value) && | ||
Objects.equals(min, that.min) && | ||
Objects.equals(max, that.max); | ||
} | ||
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@Override | ||
public int hashCode() | ||
{ | ||
return Objects.hash(operator, value, min, max); | ||
} | ||
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@Override | ||
public String toString() | ||
{ | ||
return toStringHelper(this) | ||
.add("operator", operator) | ||
.add("value", value) | ||
.add("min", min) | ||
.add("max", max) | ||
.toString(); | ||
} | ||
} |
33 changes: 33 additions & 0 deletions
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plugin/trino-delta-lake/src/main/java/io/trino/plugin/deltalake/expression/NullLiteral.java
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/* | ||
* Licensed 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 io.trino.plugin.deltalake.expression; | ||
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import static com.google.common.base.MoreObjects.toStringHelper; | ||
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public class NullLiteral | ||
extends Literal | ||
{ | ||
@Override | ||
public <R, C> R accept(SparkExpressionTreeVisitor<R, C> visitor, C context) | ||
{ | ||
return visitor.visitNullLiteral(this, context); | ||
} | ||
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@Override | ||
public String toString() | ||
{ | ||
return toStringHelper(this) | ||
.toString(); | ||
} | ||
} |
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