57 lines
1.8 KiB
Go
57 lines
1.8 KiB
Go
// Copyright 2015 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package server
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// ColumnInfo contains information of a column
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type ColumnInfo struct {
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Schema string
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Table string
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OrgTable string
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Name string
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OrgName string
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ColumnLength uint32
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Charset uint16
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Flag uint16
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Decimal uint8
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Type uint8
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DefaultValueLength uint64
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DefaultValue []byte
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}
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// Dump dumps ColumnInfo to bytes.
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func (column *ColumnInfo) Dump(buffer []byte) []byte {
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buffer = dumpLengthEncodedString(buffer, []byte("def"))
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buffer = dumpLengthEncodedString(buffer, []byte(column.Schema))
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buffer = dumpLengthEncodedString(buffer, []byte(column.Table))
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buffer = dumpLengthEncodedString(buffer, []byte(column.OrgTable))
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buffer = dumpLengthEncodedString(buffer, []byte(column.Name))
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buffer = dumpLengthEncodedString(buffer, []byte(column.OrgName))
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buffer = append(buffer, 0x0c)
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buffer = dumpUint16(buffer, column.Charset)
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buffer = dumpUint32(buffer, column.ColumnLength)
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buffer = append(buffer, column.Type)
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buffer = dumpUint16(buffer, column.Flag)
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buffer = append(buffer, column.Decimal)
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buffer = append(buffer, 0, 0)
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if column.DefaultValue != nil {
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buffer = dumpUint64(buffer, uint64(len(column.DefaultValue)))
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buffer = append(buffer, column.DefaultValue...)
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}
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return buffer
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}
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