wehub-resource-sync
90 lines
2.7 KiB
Go
90 lines
2.7 KiB
Go
// Copyright 2023 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 ast
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/cockroachdb/errors"
|
|
vitess "github.com/dolthub/vitess/go/vt/sqlparser"
|
|
|
|
"github.com/dolthub/doltgresql/postgres/parser/sem/tree"
|
|
"github.com/dolthub/doltgresql/server/config"
|
|
)
|
|
|
|
// nodeSetVar handles *tree.SetVar nodes.
|
|
func nodeSetVar(ctx *Context, node *tree.SetVar) (vitess.Statement, error) {
|
|
if node == nil {
|
|
return nil, nil
|
|
}
|
|
// USE statement alias
|
|
if node.Name == "database" {
|
|
// strip off all quotes from the database name
|
|
dbName := strings.TrimPrefix(strings.TrimSuffix(node.Values[0].String(), "'"), "'")
|
|
dbName = strings.TrimPrefix(strings.TrimSuffix(dbName, "\""), "\"")
|
|
dbName = strings.TrimPrefix(strings.TrimSuffix(dbName, "`"), "`")
|
|
return &vitess.Use{DBName: vitess.NewTableIdent(dbName)}, nil
|
|
}
|
|
if node.Namespace == "" && !config.IsValidPostgresConfigParameter(node.Name) && !config.IsValidDoltConfigParameter(node.Name) {
|
|
return nil, errors.Errorf(`ERROR: unrecognized configuration parameter "%s"`, node.Name)
|
|
}
|
|
if node.IsLocal {
|
|
// TODO: takes effect for only the current transaction rather than the current session.
|
|
return nil, errors.Errorf("SET LOCAL is not yet supported")
|
|
}
|
|
var expr vitess.Expr
|
|
var err error
|
|
if len(node.Values) == 0 {
|
|
// sanity check
|
|
return nil, errors.Errorf(`ERROR: syntax error at or near ";"'`)
|
|
} else if len(node.Values) > 1 {
|
|
vals := make([]string, len(node.Values))
|
|
for i, val := range node.Values {
|
|
vals[i] = val.String()
|
|
}
|
|
expr = &vitess.ColName{
|
|
Name: vitess.NewColIdent(strings.Join(vals, ", ")),
|
|
}
|
|
} else {
|
|
expr, err = nodeExpr(ctx, node.Values[0])
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
if node.Namespace == "" {
|
|
return &vitess.Set{
|
|
Exprs: vitess.SetVarExprs{&vitess.SetVarExpr{
|
|
Scope: vitess.SetScope_Session,
|
|
Name: &vitess.ColName{
|
|
Name: vitess.NewColIdent(node.Name),
|
|
},
|
|
Expr: expr,
|
|
}},
|
|
}, nil
|
|
} else {
|
|
return &vitess.Set{
|
|
Exprs: vitess.SetVarExprs{&vitess.SetVarExpr{
|
|
Scope: vitess.SetScope_User,
|
|
Name: &vitess.ColName{
|
|
Name: vitess.NewColIdent(fmt.Sprintf("%s.%s", node.Namespace, node.Name)),
|
|
},
|
|
Expr: expr,
|
|
}},
|
|
}, nil
|
|
}
|
|
}
|