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QuestDB is high performance SQL time series database
/*******************************************************************************
* ___ _ ____ ____
* / _ \ _ _ ___ ___| |_| _ \| __ )
* | | | | | | |/ _ \/ __| __| | | | _ \
* | |_| | |_| | __/\__ \ |_| |_| | |_) |
* \__\_\\__,_|\___||___/\__|____/|____/
*
* Copyright (c) 2014-2019 Appsicle
* Copyright (c) 2019-2024 QuestDB
*
* 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.questdb.griffin;
import io.questdb.std.ObjList;
public final class OperatorExpression {
public static final int BINARY = 2;
public static final int SET = 3;
public static final int UNARY = 1;
private static final OperatorRegistry legacyRegistry = new OperatorRegistry(
new ObjList<>() {{
add(new OperatorExpression(Operator.UnaryMinus, 3, false, UNARY));
add(new OperatorExpression(Operator.UnaryComplement, 3, false, UNARY));
add(new OperatorExpression(Operator.UnarySetNegation, 11, false, UNARY));
add(new OperatorExpression(Operator.Dot, 1, false, BINARY));
add(new OperatorExpression(Operator.DoubleColon, 2, true, BINARY));
// arithmetic operators, UnaryMinus and UnaryComplement defined above are strongest from this block
add(new OperatorExpression(Operator.Multiplication, 3, true, BINARY));
add(new OperatorExpression(Operator.Division, 3, true, BINARY));
add(new OperatorExpression(Operator.Modulo, 3, true, BINARY));
add(new OperatorExpression(Operator.Plus, 4, true, BINARY));
add(new OperatorExpression(Operator.Minus, 4, true, BINARY));
// IP operators
add(new OperatorExpression(Operator.IpContainsStrictLeft, 4, true, BINARY));
add(new OperatorExpression(Operator.IpContainsStrictRight, 4, true, BINARY));
add(new OperatorExpression(Operator.IpContainsLeft, 4, true, BINARY));
add(new OperatorExpression(Operator.IpContainsRight, 4, true, BINARY));
// concatenation
add(new OperatorExpression(Operator.Concatenation, 5, true, BINARY));
// bitwise operators
add(new OperatorExpression(Operator.BitAnd, 8, true, BINARY));
add(new OperatorExpression(Operator.BitXor, 9, true, BINARY));
add(new OperatorExpression(Operator.BitOr, 10, true, BINARY));
// set operators
add(new OperatorExpression(Operator.In, 7, true, SET, false));
add(new OperatorExpression(Operator.Between, 7, true, SET, false)); // ternary operator
add(new OperatorExpression(Operator.Within, 7, true, SET, false));
// boolean operators
add(new OperatorExpression(Operator.Less, 6, true, BINARY));
add(new OperatorExpression(Operator.LessOrEqual, 6, true, BINARY));
add(new OperatorExpression(Operator.Greater, 6, true, BINARY));
add(new OperatorExpression(Operator.GreaterOrEqual, 6, true, BINARY));
add(new OperatorExpression(Operator.Equal, 7, true, BINARY));
add(new OperatorExpression(Operator.NotEqual, 7, true, BINARY));
add(new OperatorExpression(Operator.NotEqualSqlStyle, 7, true, BINARY));
add(new OperatorExpression(Operator.LikeRegex, 7, true, BINARY));
add(new OperatorExpression(Operator.NotLikeRegex, 7, true, BINARY));
add(new OperatorExpression(Operator.LikeSqlStyle, 7, true, BINARY, false));
add(new OperatorExpression(Operator.ILikeSqlStyle, 7, true, BINARY, false));
// logical operators
add(new OperatorExpression(Operator.BinaryNot, 11, true, UNARY, false));
add(new OperatorExpression(Operator.BinaryAnd, 11, true, BINARY, false));
add(new OperatorExpression(Operator.BinaryOr, 11, true, BINARY, false));
}});
private static final OperatorRegistry registry = new OperatorRegistry(
new ObjList<>() {{
add(new OperatorExpression(Operator.DeclareVariableAssignment, 100, false, BINARY));
add(new OperatorExpression(Operator.UnaryMinus, 3, false, UNARY));
add(new OperatorExpression(Operator.UnaryComplement, 3, false, UNARY));
add(new OperatorExpression(Operator.UnarySetNegation, 11, false, UNARY));
add(new OperatorExpression(Operator.Dot, 1, false, BINARY));
add(new OperatorExpression(Operator.DoubleColon, 2, true, BINARY));
// arithmetic operators, UnaryMinus and UnaryComplement defined above are strongest from this block
add(new OperatorExpression(Operator.Multiplication, 4, true, BINARY));
add(new OperatorExpression(Operator.Division, 4, true, BINARY));
add(new OperatorExpression(Operator.Modulo, 4, true, BINARY));
add(new OperatorExpression(Operator.Plus, 5, true, BINARY));
add(new OperatorExpression(Operator.Minus, 5, true, BINARY));
// IP operators
add(new OperatorExpression(Operator.IpContainsStrictLeft, 6, true, BINARY));
add(new OperatorExpression(Operator.IpContainsStrictRight, 6, true, BINARY));
add(new OperatorExpression(Operator.IpContainsLeft, 6, true, BINARY));
add(new OperatorExpression(Operator.IpContainsRight, 6, true, BINARY));
// concatenation
add(new OperatorExpression(Operator.Concatenation, 7, true, BINARY));
// bitwise operators
add(new OperatorExpression(Operator.BitAnd, 8, true, BINARY));
add(new OperatorExpression(Operator.BitXor, 9, true, BINARY));
add(new OperatorExpression(Operator.BitOr, 10, true, BINARY));
// set operators
add(new OperatorExpression(Operator.In, 11, false, SET, false));
add(new OperatorExpression(Operator.Between, 11, false, SET, false)); // ternary operator
add(new OperatorExpression(Operator.Within, 11, false, SET, false));
// boolean operators
add(new OperatorExpression(Operator.Less, 12, true, BINARY));
add(new OperatorExpression(Operator.LessOrEqual, 12, true, BINARY));
add(new OperatorExpression(Operator.Greater, 12, true, BINARY));
add(new OperatorExpression(Operator.GreaterOrEqual, 12, true, BINARY));
add(new OperatorExpression(Operator.Equal, 13, true, BINARY));
add(new OperatorExpression(Operator.NotEqual, 13, true, BINARY));
add(new OperatorExpression(Operator.NotEqualSqlStyle, 13, true, BINARY));
add(new OperatorExpression(Operator.LikeRegex, 13, true, BINARY));
add(new OperatorExpression(Operator.NotLikeRegex, 13, true, BINARY));
add(new OperatorExpression(Operator.LikeSqlStyle, 13, true, BINARY, false));
add(new OperatorExpression(Operator.ILikeSqlStyle, 13, true, BINARY, false));
// logical operators
add(new OperatorExpression(Operator.BinaryNot, 14, false, UNARY, false));
add(new OperatorExpression(Operator.BinaryAnd, 15, true, BINARY, false));
add(new OperatorExpression(Operator.BinaryOr, 16, true, BINARY, false));
}});
final boolean leftAssociative;
final OperatorExpression.Operator operator;
final int precedence;
final boolean symbol;
final int type;
private OperatorExpression(OperatorExpression.Operator operator, int precedence, boolean leftAssociative, int type, boolean symbol) {
this.operator = operator;
this.precedence = precedence;
this.leftAssociative = leftAssociative;
this.type = type;
this.symbol = symbol;
}
private OperatorExpression(OperatorExpression.Operator operator, int precedence, boolean leftAssociative, int type) {
this.operator = operator;
this.precedence = precedence;
this.leftAssociative = leftAssociative;
this.type = type;
this.symbol = true;
}
public static OperatorRegistry chooseRegistry(boolean cairoSqlLegacyOperatorPrecedence) {
return cairoSqlLegacyOperatorPrecedence ? legacyRegistry : registry;
}
public static OperatorRegistry getLegacyRegistry() {
return legacyRegistry;
}
public static OperatorRegistry getRegistry() {
return registry;
}
public int getType() {
return type;
}
public boolean greaterPrecedence(int otherPrecedence) {
return (leftAssociative && precedence >= otherPrecedence) || (!leftAssociative && precedence > otherPrecedence);
}
public enum Operator {
DeclareVariableAssignment(":="),
UnaryMinus("-"),
UnaryComplement("~"),
UnarySetNegation("not"),
Dot("."),
DoubleColon("::"),
Multiplication("*"),
Division("/"),
Modulo("%"),
Plus("+"),
Minus("-"),
IpContainsStrictLeft("<<"),
IpContainsStrictRight(">>"),
IpContainsLeft("<<="),
IpContainsRight(">>="),
Concatenation("||"),
BitAnd("&"),
BitXor("^"),
BitOr("|"),
In("in"),
Between("between"),
Within("within"),
Less("<"),
LessOrEqual("<="),
Greater(">"),
GreaterOrEqual(">="),
Equal("="),
NotEqual("!="),
NotEqualSqlStyle("<>"),
LikeRegex("~"),
NotLikeRegex("!~"),
LikeSqlStyle("like"),
ILikeSqlStyle("ilike"),
BinaryNot("not"),
BinaryAnd("and"),
BinaryOr("or");
public final String token;
Operator(String token) {
this.token = token;
}
}
}
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