Module partiql_ast::ast

A PartiQL abstract syntax tree (AST).

This module contains the structures for the language AST. Two main entities in the module are Item and AstNode. AstNode represents an AST node and Item represents a PartiQL statement type, e.g. query, data definition language (DDL) data manipulation language (DML).

Structs

• Assignment
  Represents <expr> = <expr> in a DML SET operation. Note that in this case, = is representing an assignment operation and not the equality operator.
• AstNode
  Represents an AST node.
• Bag
• BagOpExpr
• Between
• BinOp
• Call
• CallAgg
• CallArgNamed
• CallArgNamedType
• CreateIndex
• CreateTable
• CustomType
• Ddl
• Delete
• Dml
• DropIndex
• DropTable
• ExprPair
  A generic pair of expressions. Used in the pub struct, searched_case and simple_case expr variants above.
• FromClause
  FROM clause of an SFW query
• FromLet
• GroupByExpr
  GROUP BY <grouping_strategy> <group_key>[, <group_key>]… [AS ]
• GroupKey
  [AS ]
• HavingClause
• In
• Insert
• InsertValue
• Join
• Let
• LetBinding
• Like
• LimitOffsetClause
• List
• NodeId
• OnConflict
  ON CONFLICT <expr> <conflict_action>
• OrderByExpr
  ORDER BY <sort_spec>…
• Path
• PathExpr
• ProjectAll
• ProjectExpr
• ProjectPivot
• Projection
• Query
• QueryTable
• Remove
• ReturningColumn
• ReturningElem
  <returning mapping> (<expr> [, <expr>]...)
• ReturningExpr
  RETURNING (<returning_elem> [, <returning_elem>]...)
• SearchedCase
• Select
• Set
• Sexp
• SimpleCase
• SortSpec
  [ASC | DESC] ?
• Struct
• SymbolPrimitive
• TopLevelQuery
• UniOp
• VarRef
• WhereClause
• WithClause
• WithElement

Enums

• BagOperator
• BinOpKind
• CallArg
• Case
• CaseSensitivity
  Is used to determine if variable lookup should be case-sensitive or not.
• ColumnComponent
• ConflictAction
  CONFLICT_ACTION <action>
• CustomTypeParam
• CustomTypePart
• DdlOp
• DmlOp
• Expr
  The expressions that can result in values.
• FromLetKind
  Indicates the type of FromLet, see the following for more details: https:///github.com/partiql/partiql-lang-kotlin/issues/242
• FromSource
• GroupingStrategy
  Desired grouping qualifier: ALL or PARTIAL. Note: the group_ prefix is needed to avoid naming clashes.
• Item
• JoinKind
  Indicates the logical type of join.
• JoinSpec
• Lit
  Lit is mostly inspired by SQL-92 Literals standard and PartiQL specification. See section 5.3 in the following: https://www.contrib.andrew.cmu.edu/~shadow/sql/sql1992.txt and Section 2 of the following (Figure 1: BNF Grammar for PartiQL Values): https://partiql.org/assets/PartiQL-Specification.pdf
• NullOrderingSpec
• OrderingSpec
• PathStep
  A “step” within a path expression; that is the components of the expression following the root.
• ProjectItem
  An item to be projected in a SELECT-list.
• ProjectionKind
  Indicates the type of projection in a SFW query.
• QuerySet
• ReturningMapping
  ( MODIFIED | ALL ) ( NEW | OLD )
• ScopeQualifier
  Indicates scope search order when resolving variables. Has no effect except within FROM sources.
• SetQuantifier
  Indicates if a set should be reduced to its distinct elements or not.
• Type
  Represents all possible PartiQL data types.
• UniOpKind

Type Aliases

• AstTypeMap