github.com/matrixorigin/matrixone@v0.7.0/pkg/vm/engine/tae/tables/utils.go (about)

     1  // Copyright 2021 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package tables
    16  
    17  import (
    18  	"bytes"
    19  
    20  	"github.com/matrixorigin/matrixone/pkg/container/types"
    21  	"github.com/matrixorigin/matrixone/pkg/objectio"
    22  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/buffer/base"
    23  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/catalog"
    24  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/common"
    25  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/containers"
    26  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/dataio/blockio"
    27  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/tables/evictable"
    28  )
    29  
    30  func LoadPersistedColumnData(
    31  	mgr base.INodeManager,
    32  	fs *objectio.ObjectFS,
    33  	id *common.ID,
    34  	def *catalog.ColDef,
    35  	location string,
    36  	buffer *bytes.Buffer) (vec containers.Vector, err error) {
    37  	return evictable.FetchColumnData(
    38  		id,
    39  		def,
    40  		location,
    41  		buffer,
    42  		mgr,
    43  		fs)
    44  }
    45  
    46  func ReadPersistedBlockRow(location string) int {
    47  	meta, err := blockio.DecodeMetaLocToMeta(location)
    48  	if err != nil {
    49  		panic(err)
    50  	}
    51  	return int(meta.GetRows())
    52  }
    53  
    54  func LoadPersistedDeletes(
    55  	mgr base.INodeManager,
    56  	fs *objectio.ObjectFS,
    57  	location string) (bat *containers.Batch, err error) {
    58  	bat = containers.NewBatch()
    59  	colNames := []string{catalog.PhyAddrColumnName, catalog.AttrCommitTs, catalog.AttrAborted}
    60  	colTypes := []types.Type{types.T_Rowid.ToType(), types.T_TS.ToType(), types.T_bool.ToType()}
    61  	for i := 0; i < 3; i++ {
    62  		vec, err := evictable.FetchDeltaData(nil, mgr, fs, location, uint16(i), colTypes[i])
    63  		if err != nil {
    64  			return bat, err
    65  		}
    66  		bat.AddVector(colNames[i], vec)
    67  	}
    68  	return
    69  }