wehub-resource-sync
98 lines
3.5 KiB
Go
98 lines
3.5 KiB
Go
// Copyright 2024 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 functions
|
|
|
|
import (
|
|
"strings"
|
|
|
|
"github.com/cockroachdb/errors"
|
|
"github.com/dolthub/go-mysql-server/sql"
|
|
|
|
"github.com/dolthub/doltgresql/core"
|
|
"github.com/dolthub/doltgresql/core/id"
|
|
"github.com/dolthub/doltgresql/server/functions/framework"
|
|
pgtypes "github.com/dolthub/doltgresql/server/types"
|
|
)
|
|
|
|
// initSetVal registers the functions to the catalog.
|
|
func initSetVal() {
|
|
framework.RegisterFunction(setval_text_int64)
|
|
framework.RegisterFunction(setval_text_int64_boolean)
|
|
}
|
|
|
|
// setval_text_int64 represents the PostgreSQL function of the same name, taking the same parameters.
|
|
var setval_text_int64 = framework.Function2{
|
|
Name: "setval",
|
|
Return: pgtypes.Int64,
|
|
Parameters: [2]*pgtypes.DoltgresType{pgtypes.Text, pgtypes.Int64},
|
|
IsNonDeterministic: true,
|
|
Strict: true,
|
|
Callable: func(ctx *sql.Context, _ [3]*pgtypes.DoltgresType, val1 any, val2 any) (any, error) {
|
|
var unusedTypes [4]*pgtypes.DoltgresType
|
|
return setval_text_int64_boolean.Callable(ctx, unusedTypes, val1, val2, true)
|
|
},
|
|
}
|
|
|
|
// setval_text_int64_boolean represents the PostgreSQL function of the same name, taking the same parameters.
|
|
var setval_text_int64_boolean = framework.Function3{
|
|
Name: "setval",
|
|
Return: pgtypes.Int64,
|
|
Parameters: [3]*pgtypes.DoltgresType{pgtypes.Text, pgtypes.Int64, pgtypes.Bool},
|
|
IsNonDeterministic: true,
|
|
Strict: true,
|
|
Callable: func(ctx *sql.Context, _ [4]*pgtypes.DoltgresType, val1 any, val2 any, val3 any) (any, error) {
|
|
// TODO: this needs a database name to support inserts into other databases (including inserts on other branches than the current one)
|
|
collection, err := core.GetSequencesCollectionFromContext(ctx, ctx.GetCurrentDatabase())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
// TODO: this should take a regclass as the parameter to determine the schema
|
|
schema, relation, err := ParseRelationName(ctx, val1.(string))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return val2.(int64), collection.SetVal(ctx, id.NewSequence(schema, relation), val2.(int64), val3.(bool))
|
|
},
|
|
}
|
|
|
|
// ParseRelationName parses the schema and relation name from a relation name string, including trimming any
|
|
// identifier quotes used in the name. For example, passing in 'public."MyTable"' would return 'public' and 'MyTable'.
|
|
func ParseRelationName(ctx *sql.Context, name string) (schema string, relation string, err error) {
|
|
pathElems := strings.Split(name, ".")
|
|
switch len(pathElems) {
|
|
case 1:
|
|
schema, err = core.GetCurrentSchema(ctx)
|
|
if err != nil {
|
|
return "", "", err
|
|
}
|
|
relation = pathElems[0]
|
|
case 2:
|
|
schema = pathElems[0]
|
|
relation = pathElems[1]
|
|
case 3:
|
|
// database is not used atm
|
|
schema = pathElems[1]
|
|
relation = pathElems[2]
|
|
default:
|
|
return "", "", errors.Errorf(`cannot parse relation: %s`, name)
|
|
}
|
|
|
|
// Trim any quotes from the schema and the relation name
|
|
schema = strings.Trim(schema, `"`)
|
|
relation = strings.Trim(relation, `"`)
|
|
|
|
return schema, relation, nil
|
|
}
|