forked from pingcap/tidb
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathtables.go
490 lines (464 loc) · 17.8 KB
/
tables.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
// Copyright 2016 PingCAP, 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package infoschema
import (
"fmt"
"sort"
"github.com/pingcap/tidb/column"
"github.com/pingcap/tidb/meta/autoid"
"github.com/pingcap/tidb/model"
"github.com/pingcap/tidb/mysql"
"github.com/pingcap/tidb/table"
"github.com/pingcap/tidb/table/tables"
"github.com/pingcap/tidb/util/charset"
"github.com/pingcap/tidb/util/types"
)
const (
tableSchemata = "SCHEMATA"
tableTables = "TABLES"
tableColumns = "COLUMNS"
tableStatistics = "STATISTICS"
tableCharacterSets = "CHARACTER_SETS"
tableCollations = "COLLATIONS"
tableFiles = "FILES"
catalogVal = "def"
tableProfiling = "PROFILING"
tablePartitions = "PARTITIONS"
)
type columnInfo struct {
name string
tp byte
size int
flag uint
deflt interface{}
elems []string
}
func buildColumnInfo(tableName string, col columnInfo) *model.ColumnInfo {
mCharset := charset.CharsetBin
mCollation := charset.CharsetBin
mFlag := mysql.UnsignedFlag
if col.tp == mysql.TypeVarchar || col.tp == mysql.TypeBlob {
mCharset = mysql.DefaultCharset
mCollation = mysql.DefaultCollationName
mFlag = 0
}
fieldType := types.FieldType{
Charset: mCharset,
Collate: mCollation,
Tp: col.tp,
Flen: col.size,
Flag: uint(mFlag),
}
return &model.ColumnInfo{
Name: model.NewCIStr(col.name),
FieldType: fieldType,
State: model.StatePublic,
}
}
func buildTableMeta(tableName string, cs []columnInfo) *model.TableInfo {
cols := make([]*model.ColumnInfo, 0, len(cs))
for _, c := range cs {
cols = append(cols, buildColumnInfo(tableName, c))
}
for i, col := range cols {
col.Offset = i
}
return &model.TableInfo{
Name: model.NewCIStr(tableName),
Columns: cols,
State: model.StatePublic,
}
}
var schemataCols = []columnInfo{
{"CATALOG_NAME", mysql.TypeVarchar, 512, 0, nil, nil},
{"SCHEMA_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"DEFAULT_CHARACTER_SET_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"DEFAULT_COLLATION_NAME", mysql.TypeVarchar, 32, 0, nil, nil},
{"SQL_PATH", mysql.TypeVarchar, 512, 0, nil, nil},
}
var tablesCols = []columnInfo{
{"TABLE_CATALOG", mysql.TypeVarchar, 512, 0, nil, nil},
{"TABLE_SCHEMA", mysql.TypeVarchar, 64, 0, nil, nil},
{"TABLE_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"TABLE_TYPE", mysql.TypeVarchar, 64, 0, nil, nil},
{"ENGINE", mysql.TypeVarchar, 64, 0, nil, nil},
{"VERSION", mysql.TypeLonglong, 21, 0, nil, nil},
{"ROW_FORMAT", mysql.TypeVarchar, 10, 0, nil, nil},
{"TABLE_ROWS", mysql.TypeLonglong, 21, 0, nil, nil},
{"AVG_ROW_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"DATA_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"MAX_DATA_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"INDEX_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"DATA_FREE", mysql.TypeLonglong, 21, 0, nil, nil},
{"AUTO_INCREMENT", mysql.TypeLonglong, 21, 0, nil, nil},
{"CREATE_TIME", mysql.TypeDatetime, 19, 0, nil, nil},
{"UPDATE_TIME", mysql.TypeDatetime, 19, 0, nil, nil},
{"CHECK_TIME", mysql.TypeDatetime, 19, 0, nil, nil},
{"TABLE_COLLATION", mysql.TypeVarchar, 32, 0, nil, nil},
{"CHECK_SUM", mysql.TypeLonglong, 21, 0, nil, nil},
{"CREATE_OPTIONS", mysql.TypeVarchar, 255, 0, nil, nil},
{"TABLE_COMMENT", mysql.TypeVarchar, 2048, 0, nil, nil},
}
var columnsCols = []columnInfo{
{"TABLE_CATALOG", mysql.TypeVarchar, 512, 0, nil, nil},
{"TABLE_SCHEMA", mysql.TypeVarchar, 64, 0, nil, nil},
{"TABLE_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"COLUMN_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"ORIGINAL_POSITION", mysql.TypeLonglong, 64, 0, nil, nil},
{"COLUMN_DEFAULT", mysql.TypeBlob, 196606, 0, nil, nil},
{"IS_NULLABLE", mysql.TypeVarchar, 3, 0, nil, nil},
{"DATA_TYPE", mysql.TypeVarchar, 64, 0, nil, nil},
{"CHARACTER_MAXIMUM_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"CHARACTOR_OCTET_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"NUMERIC_PRECISION", mysql.TypeLonglong, 21, 0, nil, nil},
{"NUMERIC_SCALE", mysql.TypeLonglong, 21, 0, nil, nil},
{"DATETIME_PRECISION", mysql.TypeLonglong, 21, 0, nil, nil},
{"CHARACTER_SET_NAME", mysql.TypeVarchar, 32, 0, nil, nil},
{"COLLATION_NAME", mysql.TypeVarchar, 32, 0, nil, nil},
{"COLUMN_TYPE", mysql.TypeBlob, 196606, 0, nil, nil},
{"COLUMN_KEY", mysql.TypeVarchar, 3, 0, nil, nil},
{"EXTRA", mysql.TypeVarchar, 30, 0, nil, nil},
{"PRIVILEGES", mysql.TypeVarchar, 80, 0, nil, nil},
{"COLUMN_COMMENT", mysql.TypeVarchar, 1024, 0, nil, nil},
}
var statisticsCols = []columnInfo{
{"TABLE_CATALOG", mysql.TypeVarchar, 512, 0, nil, nil},
{"TABLE_SCHEMA", mysql.TypeVarchar, 64, 0, nil, nil},
{"TABLE_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"NON_UNIQUE", mysql.TypeVarchar, 1, 0, nil, nil},
{"INDEX_SCHEMA", mysql.TypeVarchar, 64, 0, nil, nil},
{"INDEX_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"SEQ_IN_INDEX", mysql.TypeLonglong, 2, 0, nil, nil},
{"COLUMN_NAME", mysql.TypeVarchar, 21, 0, nil, nil},
{"COLLATION", mysql.TypeVarchar, 1, 0, nil, nil},
{"CARDINALITY", mysql.TypeLonglong, 21, 0, nil, nil},
{"SUB_PART", mysql.TypeLonglong, 3, 0, nil, nil},
{"PACKED", mysql.TypeVarchar, 10, 0, nil, nil},
{"NULLABLE", mysql.TypeVarchar, 3, 0, nil, nil},
{"INDEX_TYPE", mysql.TypeVarchar, 16, 0, nil, nil},
{"COMMENT", mysql.TypeVarchar, 16, 0, nil, nil},
{"INDEX_COMMENT", mysql.TypeVarchar, 1024, 0, nil, nil},
}
var profilingCols = []columnInfo{
{"QUERY_ID", mysql.TypeLong, 20, 0, nil, nil},
{"SEQ", mysql.TypeLong, 20, 0, nil, nil},
{"STATE", mysql.TypeVarchar, 30, 0, nil, nil},
{"DURATION", mysql.TypeNewDecimal, 9, 0, nil, nil},
{"CPU_USER", mysql.TypeNewDecimal, 9, 0, nil, nil},
{"CPU_SYSTEM", mysql.TypeNewDecimal, 9, 0, nil, nil},
{"CONTEXT_VOLUNTARY", mysql.TypeLong, 20, 0, nil, nil},
{"CONTEXT_INVOLUNTARY", mysql.TypeLong, 20, 0, nil, nil},
{"BLOCK_OPS_IN", mysql.TypeLong, 20, 0, nil, nil},
{"BLOCK_OPS_OUT", mysql.TypeLong, 20, 0, nil, nil},
{"MESSAGES_SENT", mysql.TypeLong, 20, 0, nil, nil},
{"MESSAGES_RECEIVED", mysql.TypeLong, 20, 0, nil, nil},
{"PAGE_FAULTS_MAJOR", mysql.TypeLong, 20, 0, nil, nil},
{"PAGE_FAULTS_MINOR", mysql.TypeLong, 20, 0, nil, nil},
{"SWAPS", mysql.TypeLong, 20, 0, nil, nil},
{"SOURCE_FUNCTION", mysql.TypeVarchar, 30, 0, nil, nil},
{"SOURCE_FILE", mysql.TypeVarchar, 20, 0, nil, nil},
{"SOURCE_LINE", mysql.TypeLong, 20, 0, nil, nil},
}
var charsetCols = []columnInfo{
{"CHARACTER_SET_NAME", mysql.TypeVarchar, 32, 0, nil, nil},
{"DEFAULT_COLLATE_NAME", mysql.TypeVarchar, 32, 0, nil, nil},
{"DESCRIPTION", mysql.TypeVarchar, 60, 0, nil, nil},
{"MAXLEN", mysql.TypeLonglong, 3, 0, nil, nil},
}
var collationsCols = []columnInfo{
{"COLLATION_NAME", mysql.TypeVarchar, 32, 0, nil, nil},
{"CHARACTER_SET_NAME", mysql.TypeVarchar, 32, 0, nil, nil},
{"ID", mysql.TypeLonglong, 11, 0, nil, nil},
{"IS_DEFAULT", mysql.TypeVarchar, 3, 0, nil, nil},
{"IS_COMPILED", mysql.TypeVarchar, 3, 0, nil, nil},
{"SORTLEN", mysql.TypeLonglong, 3, 0, nil, nil},
}
// See: https://dev.mysql.com/doc/refman/5.7/en/partitions-table.html
var partitionsCols = []columnInfo{
{"TABLE_CATALOG", mysql.TypeVarchar, 512, 0, nil, nil},
{"TABLE_SCHEMA", mysql.TypeVarchar, 64, 0, nil, nil},
{"TABLE_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"PARTITION_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"SUBPARTITION_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"PARTITION_ORDINAL_POSITION", mysql.TypeLonglong, 21, 0, nil, nil},
{"SUBPARTITION_ORDINAL_POSITION", mysql.TypeLonglong, 21, 0, nil, nil},
{"PARTITION_METHOD", mysql.TypeVarchar, 18, 0, nil, nil},
{"SUBPARTITION_METHOD", mysql.TypeVarchar, 12, 0, nil, nil},
{"PARTITION_EXPRESSION", mysql.TypeLongBlob, types.UnspecifiedLength, 0, nil, nil},
{"SUBPARTITION_EXPRESSION", mysql.TypeLongBlob, types.UnspecifiedLength, 0, nil, nil},
{"PARTITION_DESCRIPTION", mysql.TypeLongBlob, types.UnspecifiedLength, 0, nil, nil},
{"TABLE_ROWS", mysql.TypeLonglong, 21, 0, nil, nil},
{"AVG_ROW_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"DATA_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"MAX_DATA_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"INDEX_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"DATA_FREE", mysql.TypeLonglong, 21, 0, nil, nil},
{"CREATE_TIME", mysql.TypeDatetime, 0, 0, nil, nil},
{"UPDATE_TIME", mysql.TypeDatetime, 0, 0, nil, nil},
{"CHECK_TIME", mysql.TypeDatetime, 0, 0, nil, nil},
{"CHECKSUM", mysql.TypeLonglong, 21, 0, nil, nil},
{"PARTITION_COMMENT", mysql.TypeVarchar, 80, 0, nil, nil},
{"NODEGROUP", mysql.TypeVarchar, 12, 0, nil, nil},
{"TABLESPACE_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
}
func dataForCharacterSets() (records [][]types.Datum) {
records = append(records,
types.MakeDatums("ascii", "ascii_general_ci", "US ASCII", 1),
types.MakeDatums("binary", "binary", "Binary pseudo charset", 1),
types.MakeDatums("latin1", "latin1_swedish_ci", "cp1252 West European", 1),
types.MakeDatums("utf8", "utf8_general_ci", "UTF-8 Unicode", 3),
types.MakeDatums("utf8mb4", "utf8mb4_general_ci", "UTF-8 Unicode", 4),
)
return records
}
func dataForColltions() (records [][]types.Datum) {
records = append(records,
types.MakeDatums("ascii_general_ci", "ascii", 1, "Yes", "Yes", 1),
types.MakeDatums("binary", "binary", 2, "Yes", "Yes", 1),
types.MakeDatums("latin1_swedish_ci", "latin1", 3, "Yes", "Yes", 1),
types.MakeDatums("utf8_general_ci", "utf8", 4, "Yes", "Yes", 1),
types.MakeDatums("utf8mb4_general_ci", "utf8mb4", 5, "Yes", "Yes", 1),
)
return records
}
var filesCols = []columnInfo{
{"FILE_ID", mysql.TypeLonglong, 4, 0, nil, nil},
{"FILE_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"FILE_TYPE", mysql.TypeVarchar, 20, 0, nil, nil},
{"TABLESPACE_NAME", mysql.TypeVarchar, 20, 0, nil, nil},
{"TABLE_CATALOG", mysql.TypeVarchar, 64, 0, nil, nil},
{"TABLE_SCHEMA", mysql.TypeVarchar, 64, 0, nil, nil},
{"TABLE_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"LOGFILE_GROUP_NAME", mysql.TypeVarchar, 64, 0, nil, nil},
{"LOGFILE_GROUP_NUMBER", mysql.TypeLonglong, 32, 0, nil, nil},
{"ENGINE", mysql.TypeVarchar, 64, 0, nil, nil},
{"FULLTEXT_KEYS", mysql.TypeVarchar, 64, 0, nil, nil},
{"DELETED_ROWS", mysql.TypeLonglong, 4, 0, nil, nil},
{"UPDATE_COUNT", mysql.TypeLonglong, 4, 0, nil, nil},
{"FREE_EXTENTS", mysql.TypeLonglong, 4, 0, nil, nil},
{"TOTAL_EXTENTS", mysql.TypeLonglong, 4, 0, nil, nil},
{"EXTENT_SIZE", mysql.TypeLonglong, 4, 0, nil, nil},
{"INITIAL_SIZE", mysql.TypeLonglong, 21, 0, nil, nil},
{"MAXIMUM_SIZE", mysql.TypeLonglong, 21, 0, nil, nil},
{"AUTOEXTEND_SIZE", mysql.TypeLonglong, 21, 0, nil, nil},
{"CREATION_TIME", mysql.TypeDatetime, -1, 0, nil, nil},
{"LAST_UPDATE_TIME", mysql.TypeDatetime, -1, 0, nil, nil},
{"LAST_ACCESS_TIME", mysql.TypeDatetime, -1, 0, nil, nil},
{"RECOVER_TIME", mysql.TypeLonglong, 4, 0, nil, nil},
{"TRANSACTION_COUNTER", mysql.TypeLonglong, 4, 0, nil, nil},
{"VERSION", mysql.TypeLonglong, 21, 0, nil, nil},
{"ROW_FORMAT", mysql.TypeVarchar, 21, 0, nil, nil},
{"TABLE_ROWS", mysql.TypeLonglong, 21, 0, nil, nil},
{"AVG_ROW_LENGTH", mysql.TypeLonglong, 21, 0, nil, nil},
{"DATA_FREE", mysql.TypeLonglong, 21, 0, nil, nil},
{"CREATE_TIME", mysql.TypeDatetime, -1, 0, nil, nil},
{"UPDATE_TIME", mysql.TypeDatetime, -1, 0, nil, nil},
{"CHECK_TIME", mysql.TypeDatetime, -1, 0, nil, nil},
{"CHECKSUM", mysql.TypeLonglong, 21, 0, nil, nil},
{"STATUS", mysql.TypeVarchar, 20, 0, nil, nil},
{"EXTRA", mysql.TypeVarchar, 255, 0, nil, nil},
}
func dataForSchemata(schemas []string) [][]types.Datum {
sort.Strings(schemas)
rows := [][]types.Datum{}
for _, schema := range schemas {
record := types.MakeDatums(
catalogVal, // CATALOG_NAME
schema, // SCHEMA_NAME
mysql.DefaultCharset, // DEFAULT_CHARACTER_SET_NAME
mysql.DefaultCollationName, // DEFAULT_COLLATION_NAME
nil,
)
rows = append(rows, record)
}
return rows
}
func dataForTables(schemas []*model.DBInfo) [][]types.Datum {
rows := [][]types.Datum{}
for _, schema := range schemas {
for _, table := range schema.Tables {
record := types.MakeDatums(
catalogVal, // TABLE_CATALOG
schema.Name.O, // TABLE_SCHEMA
table.Name.O, // TABLE_NAME
"BASE_TABLE", // TABLE_TYPE
"InnoDB", // ENGINE
uint64(10), // VERSION
"Compact", // ROW_FORMAT
uint64(0), // TABLE_ROWS
uint64(0), // AVG_ROW_LENGTH
uint64(16384), // DATA_LENGTH
uint64(0), // MAX_DATA_LENGTH
uint64(0), // INDEX_LENGTH
uint64(0), // DATA_FREE
nil, // AUTO_INCREMENT
nil, // CREATE_TIME
nil, // UPDATE_TIME
nil, // CHECK_TIME
"latin1_swedish_ci", // TABLE_COLLATION
nil, // CHECKSUM
"", // CREATE_OPTIONS
"", // TABLE_COMMENT
)
rows = append(rows, record)
}
}
return rows
}
func dataForColumns(schemas []*model.DBInfo) [][]types.Datum {
rows := [][]types.Datum{}
for _, schema := range schemas {
for _, table := range schema.Tables {
rs := dataForColumnsInTable(schema, table)
for _, r := range rs {
rows = append(rows, r)
}
}
}
return rows
}
func dataForColumnsInTable(schema *model.DBInfo, table *model.TableInfo) [][]types.Datum {
rows := [][]types.Datum{}
for i, col := range table.Columns {
colLen := col.Flen
if colLen == types.UnspecifiedLength {
colLen = mysql.GetDefaultFieldLength(col.Tp)
}
decimal := col.Decimal
if decimal == types.UnspecifiedLength {
decimal = 0
}
columnType := col.FieldType.CompactStr()
columnDesc := column.NewColDesc(&column.Col{ColumnInfo: *col})
var columnDefault interface{}
if columnDesc.DefaultValue != nil {
columnDefault = fmt.Sprintf("%v", columnDesc.DefaultValue)
}
record := types.MakeDatums(
catalogVal, // TABLE_CATALOG
schema.Name.O, // TABLE_SCHEMA
table.Name.O, // TABLE_NAME
col.Name.O, // COLUMN_NAME
i+1, // ORIGINAL_POSITION
columnDefault, // COLUMN_DEFAULT
columnDesc.Null, // IS_NULLABLE
types.TypeToStr(col.Tp, col.Charset), // DATA_TYPE
colLen, // CHARACTER_MAXIMUM_LENGTH
colLen, // CHARACTOR_OCTET_LENGTH
decimal, // NUMERIC_PRECISION
0, // NUMERIC_SCALE
0, // DATETIME_PRECISION
col.Charset, // CHARACTER_SET_NAME
col.Collate, // COLLATION_NAME
columnType, // COLUMN_TYPE
columnDesc.Key, // COLUMN_KEY
columnDesc.Extra, // EXTRA
"select,insert,update,references", // PRIVILEGES
"", // COLUMN_COMMENT
)
rows = append(rows, record)
}
return rows
}
func dataForStatistics(schemas []*model.DBInfo) [][]types.Datum {
rows := [][]types.Datum{}
for _, schema := range schemas {
for _, table := range schema.Tables {
rs := dataForStatisticsInTable(schema, table)
for _, r := range rs {
rows = append(rows, r)
}
}
}
return rows
}
func dataForStatisticsInTable(schema *model.DBInfo, table *model.TableInfo) [][]types.Datum {
rows := [][]types.Datum{}
if table.PKIsHandle {
for _, col := range table.Columns {
if mysql.HasPriKeyFlag(col.Flag) {
record := types.MakeDatums(
catalogVal, // TABLE_CATALOG
schema.Name.O, // TABLE_SCHEMA
table.Name.O, // TABLE_NAME
"0", // NON_UNIQUE
schema.Name.O, // INDEX_SCHEMA
"PRIMARY", // INDEX_NAME
1, // SEQ_IN_INDEX
col.Name.O, // COLUMN_NAME
"A", // COLLATION
0, // CARDINALITY
nil, // SUB_PART
nil, // PACKED
"", // NULLABLE
"BTREE", // INDEX_TYPE
"", // COMMENT
"", // INDEX_COMMENT
)
rows = append(rows, record)
}
}
}
nameToCol := make(map[string]*model.ColumnInfo, len(table.Columns))
for _, c := range table.Columns {
nameToCol[c.Name.L] = c
}
for _, index := range table.Indices {
nonUnique := "1"
if index.Unique {
nonUnique = "0"
}
for i, key := range index.Columns {
col := nameToCol[key.Name.L]
nullable := "YES"
if mysql.HasNotNullFlag(col.Flag) {
nullable = ""
}
record := types.MakeDatums(
catalogVal, // TABLE_CATALOG
schema.Name.O, // TABLE_SCHEMA
table.Name.O, // TABLE_NAME
nonUnique, // NON_UNIQUE
schema.Name.O, // INDEX_SCHEMA
index.Name.O, // INDEX_NAME
i+1, // SEQ_IN_INDEX
key.Name.O, // COLUMN_NAME
"A", // COLLATION
0, // CARDINALITY
nil, // SUB_PART
nil, // PACKED
nullable, // NULLABLE
"BTREE", // INDEX_TYPE
"", // COMMENT
"", // INDEX_COMMENT
)
rows = append(rows, record)
}
}
return rows
}
var tableNameToColumns = map[string]([]columnInfo){
tableSchemata: schemataCols,
tableTables: tablesCols,
tableColumns: columnsCols,
tableStatistics: statisticsCols,
tableCharacterSets: charsetCols,
tableCollations: collationsCols,
tableFiles: filesCols,
tableProfiling: profilingCols,
tablePartitions: partitionsCols,
}
func createMemoryTable(meta *model.TableInfo, alloc autoid.Allocator) (table.Table, error) {
tbl, _ := tables.MemoryTableFromMeta(alloc, meta)
return tbl, nil
}