feat: sql解析器替换、工单统一由‘我的流程’发起、流程定义支持自定义条件触发审批、资源隐藏编号、model支持物理删除等

server/internal/db/dbm/sqlparser/sqlstmt/select.go

@@ -0,0 +1,135 @@
+package sqlstmt
+
+type (
+	ISelectStmt interface {
+		INode
+
+		isSelect()
+	}
+
+	SelectStmt struct {
+		*Node
+	}
+
+	QuerySpecification struct {
+		*Node
+
+		SelectElements *SelectElements
+		From           *TableSources
+		Where          IExpr
+		Limit          *Limit
+	}
+
+	SimpleSelectStmt struct {
+		SelectStmt
+
+		QuerySpecification *QuerySpecification
+	}
+
+	UnionSelectStmt struct {
+		SelectStmt
+
+		UnionType          string
+		QuerySpecification *QuerySpecification
+		QueryExpr          *QueryExpr
+		UnionStmts         []*UnionStmt
+		Limit              *Limit
+	}
+
+	// 圆括号查询
+	ParenthesisSelect struct {
+		SelectStmt
+
+		QueryExpr *QueryExpr
+	}
+
+	QueryExpr struct {
+		*Node
+
+		QuerySpecification *QuerySpecification
+		QueryExpr          *QueryExpr
+	}
+)
+
+func (*SelectStmt) isSelect() {}
+
+// var _ (ISelectStmt) = (*SimpleSelectStmt)(nil)
+// var _ (ISelectStmt) = (*SelectStmt)(nil)
+// var _ (ISelectStmt) = (*ParenthesisSelect)(nil)
+
+type (
+	SelectElements struct {
+		*Node
+
+		Star     string // 查询所有
+		Elements []ISelectElement
+	}
+
+	ISelectElement interface {
+		INode
+	}
+
+	SelectStarElement struct {
+		*Node
+
+		FullId string
+	}
+
+	SelectColumnElement struct {
+		*Node
+
+		FullColumnName *ColumnName
+		Alias          string
+	}
+
+	SelectFunctionElement struct {
+		*Node
+
+		Alias string
+	}
+)
+
+type From struct {
+	TableSource *ITableSource
+}
+
+type Limit struct {
+	*Node
+
+	RowCount int
+	Offset   int
+}
+
+type (
+	IJoinPart interface {
+		INode
+	}
+
+	JoinPart struct {
+		*Node
+
+		TableSourceItem ITableSourceItem
+	}
+
+	InnerJoin struct {
+		JoinPart
+	}
+
+	OuterJoin struct {
+		JoinPart
+	}
+
+	NaturalJoin struct {
+		JoinPart
+	}
+)
+
+type (
+	UnionStmt struct {
+		*Node
+
+		UnionType          string
+		QuerySpecification *QuerySpecification
+		QueryExpr          *QueryExpr
+	}
+)