package querychecker

import "v.io/v23/query/engine/internal/querychecker"

Package querychecker performs a semantic check on an AST produced by the queryparser package.

For the foreseeasble future, only SelectStatements are supported. The following clauses are checked sequentially, SelectClause FromClause WhereClause (optional) LimitClause (optional) ResultsOffsetClause (optional)

Index ¶

• Constants
• Variables
• func Check(db ds.Database, s *queryparser.Statement) error
• func CompileIndexRanges(idxField *queryparser.Field, kind vdl.Kind, where *queryparser.WhereClause) *ds.IndexRanges
• func ContainsFieldOperand(f *queryparser.Field, expr *queryparser.Expression) bool
• func ContainsFunctionOperand(expr *queryparser.Expression) bool
• func ContainsKeyOperand(expr *queryparser.Expression) bool
• func ContainsValueFieldOperand(expr *queryparser.Expression) bool
• func IsExactField(f *queryparser.Field, o *queryparser.Operand) bool
• func IsExpr(o *queryparser.Operand) bool
• func IsField(o *queryparser.Operand) bool
• func IsFunction(o *queryparser.Operand) bool
• func IsKey(o *queryparser.Operand) bool
• func IsKeyField(f *queryparser.Field) bool
• func IsLogicalOperator(o *queryparser.BinaryOperator) bool
• func IsValueField(f *queryparser.Field) bool

Package Files ¶

doc.go query_checker.go

Constants ¶

Variables ¶

func Check ¶ Uses

func CompileIndexRanges ¶ Uses

Compute a list of secondary index ranges to optionally be used by query's Table.Scan.

func ContainsFieldOperand ¶ Uses

func ContainsFunctionOperand ¶ Uses

func ContainsKeyOperand ¶ Uses

func ContainsValueFieldOperand ¶ Uses

func IsExactField ¶ Uses

func IsExpr ¶ Uses

func IsField ¶ Uses

func IsFunction ¶ Uses

func IsKey ¶ Uses

func IsKeyField ¶ Uses

func IsLogicalOperator ¶ Uses

func IsValueField ¶ Uses