Package io.trino.sql

Class ExpressionUtils

java.lang.Object

io.trino.sql.ExpressionUtils

public final class ExpressionUtils
extends Object

Method Summary

Modifier and Type	Method	Description
static Expression	and(Expression... expressions)
static Expression	and(Collection<Expression> expressions)
static Expression	combineConjuncts(Metadata metadata, Expression... expressions)
static Expression	combineConjuncts(Metadata metadata, Collection<Expression> expressions)
static Expression	combineConjunctsWithDuplicates(Collection<Expression> expressions)
static Expression	combineDisjuncts(Metadata metadata, Expression... expressions)
static Expression	combineDisjuncts(Metadata metadata, Collection<Expression> expressions)
static Expression	combineDisjunctsWithDefault(Metadata metadata, Collection<Expression> expressions, Expression emptyDefault)
static Expression	combinePredicates(Metadata metadata, LogicalExpression.Operator operator, Expression... expressions)
static Expression	combinePredicates(Metadata metadata, LogicalExpression.Operator operator, Collection<Expression> expressions)
static Function<Expression,Expression>	expressionOrNullSymbols(Predicate<Symbol>... nullSymbolScopes)
static List<Expression>	extractConjuncts(Expression expression)
static List<Expression>	extractDisjuncts(Expression expression)
static List<Expression>	extractPredicates(LogicalExpression expression)
static List<Expression>	extractPredicates(LogicalExpression.Operator operator, Expression expression)
static Expression	filterConjuncts(Metadata metadata, Expression expression, Predicate<Expression> predicate)
static Expression	filterDeterministicConjuncts(Metadata metadata, Expression expression)
static Expression	filterNonDeterministicConjuncts(Metadata metadata, Expression expression)
static Map<NodeRef<Expression>,Type>	getExpressionTypes(PlannerContext plannerContext, Session session, Expression expression, TypeProvider types)	Deprecated. Use TypeAnalyzer.getTypes(Session, TypeProvider, Expression).
static boolean	isEffectivelyLiteral(PlannerContext plannerContext, Session session, Expression expression)	Returns whether expression is effectively literal.
static Expression	logicalExpression(LogicalExpression.Operator operator, Collection<Expression> expressions)
static Expression	or(Expression... expressions)
static Expression	or(Collection<Expression> expressions)
static Expression	rewriteIdentifiersToSymbolReferences(Expression expression)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

extractConjuncts

public static List<Expression> extractConjuncts(Expression expression)

extractDisjuncts

public static List<Expression> extractDisjuncts(Expression expression)

extractPredicates

public static List<Expression> extractPredicates(LogicalExpression expression)

extractPredicates

public static List<Expression> extractPredicates(LogicalExpression.Operator operator,
 Expression expression)

and

public static Expression and(Expression... expressions)

and

public static Expression and(Collection<Expression> expressions)

or

public static Expression or(Expression... expressions)

or

public static Expression or(Collection<Expression> expressions)

logicalExpression

public static Expression logicalExpression(LogicalExpression.Operator operator,
 Collection<Expression> expressions)

combinePredicates

public static Expression combinePredicates(Metadata metadata,
 LogicalExpression.Operator operator,
 Expression... expressions)

combinePredicates

public static Expression combinePredicates(Metadata metadata,
 LogicalExpression.Operator operator,
 Collection<Expression> expressions)

combineConjuncts

public static Expression combineConjuncts(Metadata metadata,
 Expression... expressions)

combineConjuncts

public static Expression combineConjuncts(Metadata metadata,
 Collection<Expression> expressions)

combineConjunctsWithDuplicates

public static Expression combineConjunctsWithDuplicates(Collection<Expression> expressions)

combineDisjuncts

public static Expression combineDisjuncts(Metadata metadata,
 Expression... expressions)

combineDisjuncts

public static Expression combineDisjuncts(Metadata metadata,
 Collection<Expression> expressions)

combineDisjunctsWithDefault

public static Expression combineDisjunctsWithDefault(Metadata metadata,
 Collection<Expression> expressions,
 Expression emptyDefault)

filterDeterministicConjuncts

public static Expression filterDeterministicConjuncts(Metadata metadata,
 Expression expression)

filterNonDeterministicConjuncts

public static Expression filterNonDeterministicConjuncts(Metadata metadata,
 Expression expression)

filterConjuncts

public static Expression filterConjuncts(Metadata metadata,
 Expression expression,
 Predicate<Expression> predicate)

expressionOrNullSymbols

@SafeVarargs
public static Function<Expression,Expression> expressionOrNullSymbols(Predicate<Symbol>... nullSymbolScopes)

isEffectivelyLiteral

public static boolean isEffectivelyLiteral(PlannerContext plannerContext,
 Session session,
 Expression expression)

Returns whether expression is effectively literal. An effectively literal expression is a simple constant value, or null, in either Literal form, or other form returned by LiteralEncoder. In particular, other constant expressions like a deterministic function call with constant arguments are not considered effectively literal.

getExpressionTypes

@Deprecated
public static Map<NodeRef<Expression>,Type> getExpressionTypes(PlannerContext plannerContext,
 Session session,
 Expression expression,
 TypeProvider types)

Deprecated.

Use TypeAnalyzer.getTypes(Session, TypeProvider, Expression).

rewriteIdentifiersToSymbolReferences

public static Expression rewriteIdentifiersToSymbolReferences(Expression expression)