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assign_routines.go
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assign_routines.go
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// Copyright 2022 Dolthub, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package analyzer
import (
"github.com/gabereiser/go-mysql-server/sql"
"github.com/gabereiser/go-mysql-server/sql/plan"
"github.com/gabereiser/go-mysql-server/sql/transform"
)
// RoutineTable is a Table that depends on a procedures and functions.
type RoutineTable interface {
sql.Table
// AssignProcedures assigns a map of db-procedures to the routines table.
AssignProcedures(p map[string][]*plan.Procedure) sql.Table
// TODO: also should assign FUNCTIONS
}
// assignRoutines sets the catalog in the required nodes.
func assignRoutines(ctx *sql.Context, a *Analyzer, n sql.Node, scope *Scope, sel RuleSelector) (sql.Node, transform.TreeIdentity, error) {
span, ctx := ctx.Span("assign_routines")
defer span.End()
return transform.Node(n, func(n sql.Node) (sql.Node, transform.TreeIdentity, error) {
if !n.Resolved() {
return n, transform.SameTree, nil
}
switch node := n.(type) {
case *plan.ResolvedTable:
nc := *node
ct, ok := nc.Table.(RoutineTable)
var err error
scope, err = loadStoredProcedures(ctx, a, n, scope, sel)
if err != nil {
return nil, false, err
}
dbs := a.Catalog.AllDatabases(ctx)
pm := make(map[string][]*plan.Procedure)
for _, db := range dbs {
if scope != nil && scope.procedures != nil {
pm[db.Name()] = scope.procedures.AllForDatabase(db.Name())
}
}
if ok {
nc.Table = ct.AssignProcedures(pm)
return &nc, transform.NewTree, nil
}
return node, transform.SameTree, nil
default:
return node, transform.SameTree, nil
}
})
}