Files
upstream-sqlc/internal/sql/ast/delete_stmt.go
upstream-mirror 0f4df23290
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snapshot of https://github.com/sqlc-dev/sqlc.git (main, 2026-09-16; blobs > 131072B omitted)
2026-09-16 02:17:34 +05:00

92 lines
2.4 KiB
Go

package ast
import "github.com/sqlc-dev/sqlc/internal/sql/format"
type DeleteStmt struct {
Tag NodeTag[DeleteStmt] `json:"tag"`
Relations *List `json:"relations,omitempty"`
UsingClause *List `json:"using_clause,omitempty"`
WhereClause Node `json:"where_clause,omitempty"`
LimitCount Node `json:"limit_count,omitempty"`
ReturningList *List `json:"returning_list,omitempty"`
WithClause *WithClause `json:"with_clause,omitempty"`
// MySQL multi-table DELETE support
Targets *List `json:"targets,omitempty"` // Tables to delete from (e.g., jt.*, pt.*)
FromClause Node `json:"from_clause,omitempty"` // FROM clause with JOINs (Node to support JoinExpr)
// PostgreSQL 18 RETURNING WITH (OLD AS ..., NEW AS ...) aliases
ReturningOldAlias string `json:"returning_old_alias"`
ReturningNewAlias string `json:"returning_new_alias"`
}
func (n *DeleteStmt) Pos() int {
return 0
}
func (n *DeleteStmt) Format(buf *TrackedBuffer, d format.Dialect) {
if n == nil {
return
}
buf.Group()
defer buf.EndGroup()
if n.WithClause != nil {
buf.astFormat(n.WithClause, d)
// The boundary between the WITH clause and the statement's own
// first keyword; the group keeps a break inside the WITH clause
// from forcing the statement body apart clause by clause.
buf.boundary(n.Relations)
buf.Line()
buf.Group()
defer buf.EndGroup()
}
buf.WriteString("DELETE ")
// MySQL multi-table DELETE: DELETE t1.*, t2.* FROM t1 JOIN t2 ...
if items(n.Targets) {
buf.join(n.Targets, d, ", ")
buf.WriteString(" FROM ")
if set(n.FromClause) {
buf.astFormat(n.FromClause, d)
} else if items(n.Relations) {
buf.astFormat(n.Relations, d)
}
} else {
buf.WriteString("FROM ")
if items(n.Relations) {
buf.astFormat(n.Relations, d)
}
}
if items(n.UsingClause) {
buf.beforeClause(n.UsingClause, d)
buf.Line()
buf.WriteString("USING ")
buf.join(n.UsingClause, d, ", ")
}
if set(n.WhereClause) {
buf.beforeClause(n.WhereClause, d)
buf.Line()
buf.WriteString("WHERE ")
buf.condition(n.WhereClause, d)
}
if set(n.LimitCount) {
buf.beforeClause(n.LimitCount, d)
buf.Line()
buf.WriteString("LIMIT ")
buf.astFormat(n.LimitCount, d)
}
if items(n.ReturningList) {
buf.beforeClause(n.ReturningList, d)
buf.Line()
buf.WriteString("RETURNING ")
formatReturningOptions(buf, d, n.ReturningOldAlias, n.ReturningNewAlias)
buf.astFormat(n.ReturningList, d)
}
}