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infoschema, executor, txn: change some field name in TIDB_TRX table (#25061)

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龙方淞
2021-06-03 19:06:26 +08:00
committed by GitHub
parent 3846378f71
commit 6900a46221
2 changed files with 4 additions and 3 deletions
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3
docs/design/2021-04-26-lock-view.md
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@ -49,7 +49,8 @@ Several tables will be provided in `information_schema`. Some tables has both lo
| `DB` | `varchar` | |
| `SET_COUNT` | `int` | Modified keys of the current transaction |
| `LOCKED_COUNT` | `int` | Locked keys of the current transaction |
| `MEM_BUFFER_SIZE` | `int` | Size occupied by the transaction's membuffer |
| `MEM_BUFFER_KEYS` | `int` | Entries in transaction's membuffer |
| `MEM_BUFFER_BYTES` | `int` | Size occupied by the transaction's membuffer |
* Life span of rows:
* Create on first writing or locking operation in a transaction

4
infoschema/tables.go
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@ -1356,8 +1356,8 @@ var tableTiDBTrxCols = []columnInfo{
{name: "CURRENT_SQL_DIGEST", tp: mysql.TypeVarchar, size: 64, comment: "Digest of the sql the transaction are currently running"},
{name: "STATE", tp: mysql.TypeEnum, enumElems: txninfo.TxnRunningStateStrs, comment: "Current running state of the transaction"},
{name: "WAITING_START_TIME", tp: mysql.TypeTimestamp, decimal: 6, size: 26, comment: "Current lock waiting's start time"},
{name: "LEN", tp: mysql.TypeLonglong, size: 64, comment: "How many entries are in MemDB"},
{name: "SIZE", tp: mysql.TypeLonglong, size: 64, comment: "MemDB used memory"},
{name: "MEM_BUFFER_KEYS", tp: mysql.TypeLonglong, size: 64, comment: "How many entries are in MemDB"},
{name: "MEM_BUFFER_BYTES", tp: mysql.TypeLonglong, size: 64, comment: "MemDB used memory"},
{name: "SESSION_ID", tp: mysql.TypeLonglong, size: 21, flag: mysql.UnsignedFlag, comment: "Which session this transaction belongs to"},
{name: "USER", tp: mysql.TypeVarchar, size: 16, comment: "The user who open this session"},
{name: "DB", tp: mysql.TypeVarchar, size: 64, comment: "The schema this transaction works on"},