ast

Documentation

Index

• Constants
• func Convert(postgresStmt parser.Statement) (vitess.Statement, error)
• func NewNoOp(warnings []string) vitess.InjectedStatement
• func NotYetSupportedError(errorMsg string) (vitess.Statement, error)
• type Context
  • func NewContext(postgresStmt parser.Statement) *Context
  • func (ctx *Context) Auth() *auth.AuthContext

Constants

const DoltCreateTablePlaceholderSequenceName = "dolt_create_table_placeholder_sequence"

DoltCreateTablePlaceholderSequenceName is a Placeholder name used in translating computed columns to generated columns that involve a sequence, used later in analysis

Functions

func Convert

func Convert(postgresStmt parser.Statement) (vitess.Statement, error)

Convert converts a Postgres AST into a Vitess AST.

func NewNoOp

func NewNoOp(warnings []string) vitess.InjectedStatement

NewNoOp returns a new NoOp statement which does nothing and issues zero or more warnings when run. Used for statements that aren't directly supported but which we don't want to cause errors.

func NotYetSupportedError

func NotYetSupportedError(errorMsg string) (vitess.Statement, error)

NotYetSupportedError returns an unsupported error with the given message, or a NoOp statement if the environment variable DOLTGRES_IGNORE_UNSUPPORTED is set.

Types

type Context

type Context struct {
	// contains filtered or unexported fields
}

Context contains any relevant context for the AST conversion. For example, the auth system uses the context to determine which larger statement an expression exists in, which may influence how the expression should handle authorization.

func NewContext

func NewContext(postgresStmt parser.Statement) *Context

NewContext returns a new *Context.

func (*Context) Auth

func (ctx *Context) Auth() *auth.AuthContext

Auth returns the portion that handles authentication.