Module ast

Source

Expand description

SQL Abstract Syntax Tree (AST) types

Modules§

analyze 🔒
data_type 🔒
ddl 🔒: AST types specific to CREATE/ALTER variants of crate::ast::Statement (commonly referred to as Data Definition Language, or DDL)
legacy_source 🔒: Content of this file can be deleted once we stop supporting create source syntax v1. New features shall NOT touch this file.
operator 🔒
query 🔒
statement 🔒
value 🔒

Macros§

impl_fmt_display
impl_parse_to

Structs§

AlterUserStatement
Array: For array type ARRAY[..] or [..]
Assignment: SQL assignment foo = { expr | DEFAULT } as used in SQLUpdate
AstString: String literal. The difference with String is that it is displayed with single-quotes.
CdcTableInfo
CloseCursorStatement
ColumnDef: SQL column definition
ColumnOptionDef: An optionally-named ColumnOption: [ CONSTRAINT <name> ] <column-option>.
ConnectionRefValue
Corresponding: CORRESPONDING [ BY <left paren> <corresponding column list> <right paren> ]
CreateConnectionStatement
CreateFunctionBody: Postgres specific feature.
CreateFunctionWithOptions
CreateSecretStatement
CreateSinkStatement
CreateSourceStatement
CreateSubscriptionStatement
CreateUserStatement
CstyleEscapedString
Cte: A single CTE (used after WITH): alias [(col1, col2, ...)] AS ( query )
DeclareCursorStatement
DisplaySeparated
DollarQuotedString
DropStatement
EscapeChar: An escape character, to represent ‘’ or a single character.
ExplainOptions
Fetch
FetchCursorStatement
FormatEncodeOptions: FORMAT ... ENCODE ... [(a=b, ...)] [KEY ENCODE ...]
Function: A function call
FunctionArgList: A list of function arguments, including additional modifiers like DISTINCT or ORDER BY. This basically holds all the information between the ( and ) in a function call.
FunctionDesc: Function describe in DROP FUNCTION.
Ident: An identifier, decomposed into its value or character data and the quote style.
JobIdents
Join
LateralView: A hive LATERAL VIEW with potential column aliases
ObjectName: A name of a table, view, custom type, etc., possibly multi-part, i.e. db.schema.obj
OperateFunctionArg: Function argument in CREATE FUNCTION.
OrderByExpr: An ORDER BY expression
QualifiedOperator: Qualified custom operator https://www.postgresql.org/docs/15/sql-expressions.html#SQL-EXPRESSIONS-OPERATOR-CALLS
Query: The most complete variant of a SELECT query expression, optionally including WITH, UNION / other set operations, and ORDER BY.
RowSchemaLocation
SecretRefValue
Select: A restricted variant of SELECT (without CTEs/ORDER BY), which may appear either as the only body item of an SQLQuery, or as an operand to a set operation like UNION.
SourceWatermark: The watermark on source. WATERMARK FOR <column> AS (<expr>)
SqlOption
StructField
TableAlias
TableColumnDef: Table column definition
TableWithJoins
Top
UserOptions
Values
WebhookSourceInfo: secure secret definition for webhook source
WindowFrame: Specifies the data processed by a window function, e.g. RANGE UNBOUNDED PRECEDING or ROWS BETWEEN 5 PRECEDING AND CURRENT ROW.
WindowSpec: A window specification (i.e. OVER (PARTITION BY .. ORDER BY .. etc.))
With
WithProperties