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Document string and decimal meta

This commit is contained in:
Gregory Eremin 2018-11-08 20:45:05 +01:00
parent aa2b3ad7b1
commit ec8e2e9a9c
1 changed files with 9 additions and 5 deletions
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14
binlog/event_table_map.go
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@ -55,17 +55,21 @@ func decodeColumnMeta(data []byte, cols []byte) []uint16 {
meta := make([]uint16, len(cols)) meta := make([]uint16, len(cols))
for i, typ := range cols { for i, typ := range cols {
switch mysql.ColumnType(typ) { switch mysql.ColumnType(typ) {
case mysql.ColumnTypeString, case mysql.ColumnTypeString:
mysql.ColumnTypeNewDecimal: // 1st: Type
// 2nd: Length
// TODO: Is that correct? meta[i] = uint16(data[pos])<<8 | uint16(data[pos+1])
pos += 2
case mysql.ColumnTypeNewDecimal:
// 1st: Precision
// 2nd: Decimal places
meta[i] = uint16(data[pos])<<8 | uint16(data[pos+1]) meta[i] = uint16(data[pos])<<8 | uint16(data[pos+1])
pos += 2 pos += 2
case mysql.ColumnTypeVarchar, case mysql.ColumnTypeVarchar,
mysql.ColumnTypeVarstring, mysql.ColumnTypeVarstring,
mysql.ColumnTypeBit: mysql.ColumnTypeBit:
// TODO: Is that correct? // Likely it's length
meta[i] = mysql.DecodeUint16(data[pos:]) meta[i] = mysql.DecodeUint16(data[pos:])
pos += 2 pos += 2
case mysql.ColumnTypeFloat, case mysql.ColumnTypeFloat,