fixidx

func FixFieldIndexes ¶

func FixFieldIndexes(scope *plan.Scope, logFn func(string, ...any), schema sql.Schema, exp sql.Expression) (sql.Expression, transform.TreeIdentity, error)

FixFieldIndexes transforms the given expression by correcting the indexes of columns in GetField expressions, according to the schema given. Used when combining multiple tables together into a single join result, or when otherwise changing / combining schemas in the node tree.

func FixFieldIndexesForExpressions ¶

func FixFieldIndexesForExpressions(ctx *sql.Context, logFn func(string, ...any), node sql.Node, scope *plan.Scope) (sql.Node, transform.TreeIdentity, error)

FixFieldIndexesForExpressions transforms the expressions in the Node given, fixing the field indexes.

func FixFieldIndexesForNode ¶

func FixFieldIndexesForNode(ctx *sql.Context, logFn func(string, ...any), scope *plan.Scope, n sql.Node) (sql.Node, transform.TreeIdentity, error)

func FixFieldIndexesForTableNode ¶

func FixFieldIndexesForTableNode(ctx *sql.Context, logFn func(string, ...any), node sql.Node, scope *plan.Scope) (sql.Node, transform.TreeIdentity, error)

FixFieldIndexesForTableNode transforms the expressions in the Node given, fixing the field indexes. This is useful for Table nodes that have expressions but no children.

func FixFieldIndexesOnExpressions ¶

func FixFieldIndexesOnExpressions(scope *plan.Scope, logFn func(string, ...any), schema sql.Schema, expressions ...sql.Expression) ([]sql.Expression, transform.TreeIdentity, error)

FixFieldIndexesOnExpressions executes FixFieldIndexes on a list of exprs.

func Schemas ¶

func Schemas(nodes []sql.Node) sql.Schema

Schemas returns the Schemas for the nodes given appended in to a single one