-
Notifications
You must be signed in to change notification settings - Fork 4
/
meta.go
273 lines (254 loc) · 7.73 KB
/
meta.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
package pg
import (
"github.com/viant/sqlx/metadata/database"
"github.com/viant/sqlx/metadata/info"
"github.com/viant/sqlx/metadata/info/dialect"
"github.com/viant/sqlx/metadata/registry"
"log"
)
const product = "PostgreSQL"
var pgSQL9 = database.Product{
Name: product,
DriverPkg: "pq",
Major: 9,
}
//PqSQL9 return PostgreSQL 9.x product
func PqSQL9() *database.Product {
return &pgSQL9
}
func init() {
err := registry.Register(
info.NewQuery(info.KindVersion, "SELECT version()", pgSQL9),
info.NewQuery(info.KindSchemas, `SELECT
CATALOG_NAME,
SCHEMA_NAME,
COALESCE(SQL_PATH,'') AS SQL_PATH,
DEFAULT_CHARACTER_SET_NAME,
DEFAULT_COLLATION_NAME AS DEFAULT_COLLATION_NAME
FROM information_schema.schemata
`, pgSQL9,
info.NewCriterion(info.Catalog, "CATALOG_NAME"),
),
info.NewQuery(info.KindSchema, `SELECT
CATALOG_NAME,
SCHEMA_NAME,
COALESCE(SQL_PATH,'') AS SQL_PATH,
DEFAULT_CHARACTER_SET_NAME,
DEFAULT_COLLATION_NAME AS DEFAULT_COLLATION_NAME
FROM information_schema.schemata
`, pgSQL9,
info.NewCriterion(info.Catalog, "CATALOG_NAME"),
info.NewCriterion(info.Schema, "SCHEMA_NAME"),
),
info.NewQuery(info.KindSchema, `SELECT
CATALOG_NAME,
SCHEMA_NAME,
COALESCE(SQL_PATH,'') AS SQL_PATH,
DEFAULT_CHARACTER_SET_NAME,
DEFAULT_COLLATION_NAME AS DEFAULT_COLLATION_NAME
FROM information_schema.schemata
`, pgSQL9,
info.NewCriterion(info.Catalog, "CATALOG_NAME"),
info.NewCriterion(info.Schema, "SCHEMA_NAME"),
),
info.NewQuery(info.KindTables, `SELECT
TABLE_CATALOG,
TABLE_SCHEMA,
TABLE_TYPE,
TABLE_NAME,
AUTO_INCREMENT,
CREATE_TIME,
UPDATE_TIME,
TABLE_ROWS,
VERSION,
ENGINE
FROM INFORMATION_SCHEMA.TABLES`,
pgSQL9,
info.NewCriterion(info.Catalog, "CATALOG_NAME"),
info.NewCriterion(info.Schema, "SCHEMA_NAME"),
),
info.NewQuery(info.KindTables, `SELECT
TABLE_CATALOG,
TABLE_SCHEMA,
TABLE_NAME,
TABLE_TYPE,
AUTO_INCREMENT,
CREATE_TIME,
UPDATE_TIME,
TABLE_ROWS,
VERSION,
ENGINE
FROM INFORMATION_SCHEMA.TABLES`,
pgSQL9,
info.NewCriterion(info.Catalog, "TABLE_CATALOG"),
info.NewCriterion(info.Schema, "TABLE_SCHEMA"),
),
info.NewQuery(info.KindTable, `SELECT
TABLE_CATALOG AS TABLE_CATALOG,
TABLE_SCHEMA AS TABLE_SCHEMA,
TABLE_NAME AS TABLE_NAME,
COLUMN_NAME AS COLUMN_NAME,
ORDINAL_POSITION AS ORDINAL_POSITION,
DATA_TYPE AS DATA_TYPE,
CHARACTER_MAXIMUM_LENGTH AS CHARACTER_MAXIMUM_LENGTH,
NUMERIC_PRECISION AS NUMERIC_PRECISION,
NUMERIC_SCALE AS "NUMERIC_SCALE",
IS_NULLABLE AS IS_NULLABLE,
COLUMN_DEFAULT AS COLUMN_DEFAULT
FROM INFORMATION_SCHEMA.COLUMNS`,
pgSQL9,
info.NewCriterion(info.Catalog, "TABLE_CATALOG"),
info.NewCriterion(info.Schema, "TABLE_SCHEMA"),
info.NewCriterion(info.Table, "TABLE_NAME"),
),
info.NewQuery(info.KindSequences, `SELECT
t.TABLE_CATALOG AS SEQUENCE_CATALOG,
t.TABLE_SCHEMA AS SEQUENCE_SCHEMA,
c.TABLE_NAME AS SEQUENCE_NAME,
c.COLUMN_TYPE AS DATA_TYPE,
c.MAX_VALUE,
t.AUTO_INCREMENT AS "SEQUENCE_VALUE"
FROM
(SELECT
TABLE_SCHEMA,
TABLE_NAME,
COLUMN_TYPE,
CASE
WHEN COLUMN_TYPE LIKE 'tinyint(1)' THEN 127
WHEN COLUMN_TYPE LIKE 'tinyint(1) unsigned' THEN 255
WHEN COLUMN_TYPE LIKE 'smallint(%)' THEN 32767
WHEN COLUMN_TYPE LIKE 'smallint(%) unsigned' THEN 65535
WHEN COLUMN_TYPE LIKE 'mediumint(%)' THEN 8388607
WHEN COLUMN_TYPE LIKE 'mediumint(%) unsigned' THEN 16777215
WHEN COLUMN_TYPE LIKE 'int(%)' THEN 2147483647
WHEN COLUMN_TYPE LIKE 'int(%) unsigned' THEN 4294967295
WHEN COLUMN_TYPE LIKE 'bigint(%)' THEN 9223372036854775807
WHEN COLUMN_TYPE LIKE 'bigint(%) unsigned' THEN 0
ELSE 0
END AS "MAX_VALUE"
FROM
INFORMATION_SCHEMA.COLUMNS
WHERE EXTRA LIKE '%auto_increment%'
) c
JOIN INFORMATION_SCHEMA.TABLES t ON (t.TABLE_SCHEMA = c.TABLE_SCHEMA AND t.TABLE_NAME = c.TABLE_NAME)
`,
pgSQL9,
info.NewCriterion(info.Catalog, "t.TABLE_CATALOG"),
info.NewCriterion(info.Schema, "t.TABLE_SCHEMA"),
info.NewCriterion(info.Sequence, "t.TABLE_NAME"),
),
info.NewQuery(info.KindIndexes, `SELECT
TABLE_CATALOG,
TABLE_SCHEMA,
TABLE_NAME,
INDEX_SCHEMA,
INDEX_NAME,
INDEX_TYPE,
CASE WHEN NON_UNIQUE = 1 THEN 1 ELSE 0 END AS INDEX_UNIQUE,
GROUP_CONCAT(COLUMN_NAME) AS INDEX_COLUMNS
FROM INFORMATION_SCHEMA.STATISTICS
$WHERE
GROUP BY 1, 2, 3, 4, 5, 6, 7
`, pgSQL9,
info.NewCriterion(info.Catalog, "TABLE_CATALOG"),
info.NewCriterion(info.Schema, "TABLE_SCHEMA"),
info.NewCriterion(info.Table, "TABLE_NAME"),
),
info.NewQuery(info.KindIndex, `SELECT
TABLE_CATALOG,
TABLE_SCHEMA,
TABLE_NAME,
INDEX_NAME,
COLUMN_NAME,
COLLATION,
SEQ_IN_INDEX INDEX_POSITION
FROM INFORMATION_SCHEMA.STATISTICS
`, pgSQL9,
info.NewCriterion(info.Catalog, "TABLE_CATALOG"),
info.NewCriterion(info.Schema, "TABLE_SCHEMA"),
info.NewCriterion(info.Table, "TABLE_NAME"),
info.NewCriterion(info.Index, "INDEX_NAME"),
),
info.NewQuery(info.KindPrimaryKeys, `SELECT
c.CONSTRAINT_NAME,
s.CONSTRAINT_TYPE,
s.CONSTRAINT_CATALOG,
s.CONSTRAINT_SCHEMA,
c.TABLE_NAME,
c.COLUMN_NAME,
COALESCE(c.REFERENCED_TABLE_NAME, '') AS REFERENCED_TABLE_NAME,
COALESCE(c.REFERENCED_COLUMN_NAME, '')REFERENCED_COLUMN_NAME,
CASE WHEN c.REFERENCED_TABLE_NAME IS NOT NULL THEN s.CONSTRAINT_SCHEMA ELSE '' END AS REFERENCED_TABLE_SCHEMA
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS s
JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE c ON c.CONSTRAINT_NAME = s.CONSTRAINT_NAME
AND c.CONSTRAINT_CATALOG = s.CONSTRAINT_CATALOG
AND c.CONSTRAINT_SCHEMA = s.CONSTRAINT_SCHEMA
AND c.TABLE_NAME = s.TABLE_NAME
WHERE s.CONSTRAINT_TYPE = 'PRIMARY KEY'
`, pgSQL9,
info.NewCriterion(info.Catalog, "s.CONSTRAINT_CATALOG"),
info.NewCriterion(info.Schema, "s.CONSTRAINT_SCHEMA"),
info.NewCriterion(info.Table, "c.TABLE_NAME"),
),
info.NewQuery(info.KindForeignKeys, `SELECT
c.CONSTRAINT_NAME,
s.CONSTRAINT_TYPE,
s.CONSTRAINT_CATALOG,
s.CONSTRAINT_SCHEMA,
c.TABLE_NAME,
c.COLUMN_NAME,
c.REFERENCED_TABLE_NAME,
c.REFERENCED_COLUMN_NAME,
s.CONSTRAINT_SCHEMA AS REFERENCED_TABLE_SCHEMA
FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS s
JOIN INFORMATION_SCHEMA.KEY_COLUMN_USAGE c ON c.CONSTRAINT_NAME = s.CONSTRAINT_NAME
AND c.CONSTRAINT_CATALOG = s.CONSTRAINT_CATALOG
AND c.CONSTRAINT_SCHEMA = s.CONSTRAINT_SCHEMA
AND c.TABLE_NAME = s.TABLE_NAME
WHERE s.CONSTRAINT_TYPE = 'FOREIGN KEY'
`, pgSQL9,
info.NewCriterion(info.Catalog, "s.CONSTRAINT_CATALOG"),
info.NewCriterion(info.Schema, "s.CONSTRAINT_SCHEMA"),
info.NewCriterion(info.Table, "c.TABLE_NAME"),
),
info.NewQuery(info.KindSession, `SELECT
CAST(pid AS varchar) AS PID,
datname AS CATALOG_NAME,
usename AS USER_NAME,
application_name AS APP_NAME,
'' AS SCHEMA_NAME
FROM pg_stat_activity
WHERE pid=pg_backend_pid() LIMIT 1;
`, pgSQL9),
info.NewQuery(info.KindForeignKeysCheckOn, `SET FOREIGN_KEY_CHECKS=1`,
pgSQL9,
info.NewCriterion(info.Catalog, ""),
info.NewCriterion(info.Schema, ""),
info.NewCriterion(info.Table, ""),
),
info.NewQuery(info.KindForeignKeysCheckOff, `SET FOREIGN_KEY_CHECKS=1`,
pgSQL9,
info.NewCriterion(info.Catalog, ""),
info.NewCriterion(info.Schema, ""),
info.NewCriterion(info.Table, ""),
),
)
if err != nil {
log.Printf("failed to register queries: %v", err)
}
registry.RegisterDialect(&info.Dialect{
Product: pgSQL9,
Placeholder: "$",
Transactional: true,
Insert: dialect.InsertWithMultiValues,
Upsert: dialect.UpsertTypeMergeInto,
Load: dialect.LoadTypeUnsupported,
CanAutoincrement: true,
CanLastInsertID: false,
CanReturning: true,
QuoteCharacter: '\'',
PlaceholderResolver: &PlaceholderGenerator{},
AutoincrementFunc: "nextval",
DefaultPresetIDStrategy: dialect.PresetIDStrategyUndefined,
})
}