-
Notifications
You must be signed in to change notification settings - Fork 477
/
data_type.rs
382 lines (365 loc) · 15.2 KB
/
data_type.rs
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
// 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,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#[cfg(not(feature = "std"))]
use alloc::{boxed::Box, string::String, vec::Vec};
use core::fmt;
#[cfg(feature = "serde")]
use serde::{Deserialize, Serialize};
use crate::ast::ObjectName;
use super::value::escape_single_quote_string;
/// SQL data types
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub enum DataType {
/// Fixed-length character type e.g. CHARACTER(10)
Character(Option<CharacterLength>),
/// Fixed-length char type e.g. CHAR(10)
Char(Option<CharacterLength>),
/// Character varying type e.g. CHARACTER VARYING(10)
CharacterVarying(Option<CharacterLength>),
/// Char varying type e.g. CHAR VARYING(10)
CharVarying(Option<CharacterLength>),
/// Variable-length character type e.g. VARCHAR(10)
Varchar(Option<CharacterLength>),
/// Variable-length character type e.g. NVARCHAR(10)
Nvarchar(Option<u64>),
/// Uuid type
Uuid,
/// Large character object with optional length e.g. CLOB, CLOB(1000), [standard], [Oracle]
///
/// [standard]: https://jakewheat.github.io/sql-overview/sql-2016-foundation-grammar.html#character-large-object-type
/// [Oracle]: https://docs.oracle.com/javadb/10.10.1.2/ref/rrefclob.html
Clob(Option<u64>),
/// Fixed-length binary type with optional length e.g. [standard], [MS SQL Server]
///
/// [standard]: https://jakewheat.github.io/sql-overview/sql-2016-foundation-grammar.html#binary-string-type
/// [MS SQL Server]: https://learn.microsoft.com/pt-br/sql/t-sql/data-types/binary-and-varbinary-transact-sql?view=sql-server-ver16
Binary(Option<u64>),
/// Variable-length binary with optional length type e.g. [standard], [MS SQL Server]
///
/// [standard]: https://jakewheat.github.io/sql-overview/sql-2016-foundation-grammar.html#binary-string-type
/// [MS SQL Server]: https://learn.microsoft.com/pt-br/sql/t-sql/data-types/binary-and-varbinary-transact-sql?view=sql-server-ver16
Varbinary(Option<u64>),
/// Large binary object with optional length e.g. BLOB, BLOB(1000), [standard], [Oracle]
///
/// [standard]: https://jakewheat.github.io/sql-overview/sql-2016-foundation-grammar.html#binary-large-object-string-type
/// [Oracle]: https://docs.oracle.com/javadb/10.8.3.0/ref/rrefblob.html
Blob(Option<u64>),
/// Decimal type with optional precision and scale e.g. DECIMAL(10,2)
Decimal(ExactNumberInfo),
/// Floating point with optional precision e.g. FLOAT(8)
Float(Option<u64>),
/// Tiny integer with optional display width e.g. TINYINT or TINYINT(3)
TinyInt(Option<u64>),
/// Unsigned tiny integer with optional display width e.g. TINYINT UNSIGNED or TINYINT(3) UNSIGNED
UnsignedTinyInt(Option<u64>),
/// Small integer with optional display width e.g. SMALLINT or SMALLINT(5)
SmallInt(Option<u64>),
/// Unsigned small integer with optional display width e.g. SMALLINT UNSIGNED or SMALLINT(5) UNSIGNED
UnsignedSmallInt(Option<u64>),
/// MySQL medium integer ([1]) with optional display width e.g. MEDIUMINT or MEDIUMINT(5)
///
/// [1]: https://dev.mysql.com/doc/refman/8.0/en/integer-types.html
MediumInt(Option<u64>),
/// Unsigned medium integer ([1]) with optional display width e.g. MEDIUMINT UNSIGNED or MEDIUMINT(5) UNSIGNED
///
/// [1]: https://dev.mysql.com/doc/refman/8.0/en/integer-types.html
UnsignedMediumInt(Option<u64>),
/// Integer with optional display width e.g. INT or INT(11)
Int(Option<u64>),
/// Integer with optional display width e.g. INTEGER or INTEGER(11)
Integer(Option<u64>),
/// Unsigned integer with optional display width e.g. INT UNSIGNED or INT(11) UNSIGNED
UnsignedInt(Option<u64>),
/// Unsigned integer with optional display width e.g. INTGER UNSIGNED or INTEGER(11) UNSIGNED
UnsignedInteger(Option<u64>),
/// Big integer with optional display width e.g. BIGINT or BIGINT(20)
BigInt(Option<u64>),
/// Unsigned big integer with optional display width e.g. BIGINT UNSIGNED or BIGINT(20) UNSIGNED
UnsignedBigInt(Option<u64>),
/// Floating point e.g. REAL
Real,
/// Double
Double,
/// Double PRECISION e.g. [standard], [postgresql]
///
/// [standard]: https://jakewheat.github.io/sql-overview/sql-2016-foundation-grammar.html#approximate-numeric-type
/// [postgresql]: https://www.postgresql.org/docs/current/datatype-numeric.html
DoublePrecision,
/// Boolean
Boolean,
/// Date
Date,
/// Time
Time(TimezoneInfo),
/// Datetime
Datetime,
/// Timestamp
Timestamp(TimezoneInfo),
/// Interval
Interval,
/// Regclass used in postgresql serial
Regclass,
/// Text
Text,
/// String
String,
/// Bytea
Bytea,
/// Custom type such as enums
Custom(ObjectName),
/// Arrays
Array(Box<DataType>),
/// Enums
Enum(Vec<String>),
/// Set
Set(Vec<String>),
}
impl fmt::Display for DataType {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
DataType::Character(size) => format_character_string_type(f, "CHARACTER", size),
DataType::Char(size) => format_character_string_type(f, "CHAR", size),
DataType::CharacterVarying(size) => {
format_character_string_type(f, "CHARACTER VARYING", size)
}
DataType::CharVarying(size) => format_character_string_type(f, "CHAR VARYING", size),
DataType::Varchar(size) => format_character_string_type(f, "VARCHAR", size),
DataType::Nvarchar(size) => {
format_type_with_optional_length(f, "NVARCHAR", size, false)
}
DataType::Uuid => write!(f, "UUID"),
DataType::Clob(size) => format_type_with_optional_length(f, "CLOB", size, false),
DataType::Binary(size) => format_type_with_optional_length(f, "BINARY", size, false),
DataType::Varbinary(size) => {
format_type_with_optional_length(f, "VARBINARY", size, false)
}
DataType::Blob(size) => format_type_with_optional_length(f, "BLOB", size, false),
DataType::Decimal(info) => {
write!(f, "NUMERIC{}", info)
}
DataType::Float(size) => format_type_with_optional_length(f, "FLOAT", size, false),
DataType::TinyInt(zerofill) => {
format_type_with_optional_length(f, "TINYINT", zerofill, false)
}
DataType::UnsignedTinyInt(zerofill) => {
format_type_with_optional_length(f, "TINYINT", zerofill, true)
}
DataType::SmallInt(zerofill) => {
format_type_with_optional_length(f, "SMALLINT", zerofill, false)
}
DataType::UnsignedSmallInt(zerofill) => {
format_type_with_optional_length(f, "SMALLINT", zerofill, true)
}
DataType::MediumInt(zerofill) => {
format_type_with_optional_length(f, "MEDIUMINT", zerofill, false)
}
DataType::UnsignedMediumInt(zerofill) => {
format_type_with_optional_length(f, "MEDIUMINT", zerofill, true)
}
DataType::Int(zerofill) => format_type_with_optional_length(f, "INT", zerofill, false),
DataType::UnsignedInt(zerofill) => {
format_type_with_optional_length(f, "INT", zerofill, true)
}
DataType::Integer(zerofill) => {
format_type_with_optional_length(f, "INTEGER", zerofill, false)
}
DataType::UnsignedInteger(zerofill) => {
format_type_with_optional_length(f, "INTEGER", zerofill, true)
}
DataType::BigInt(zerofill) => {
format_type_with_optional_length(f, "BIGINT", zerofill, false)
}
DataType::UnsignedBigInt(zerofill) => {
format_type_with_optional_length(f, "BIGINT", zerofill, true)
}
DataType::Real => write!(f, "REAL"),
DataType::Double => write!(f, "DOUBLE"),
DataType::DoublePrecision => write!(f, "DOUBLE PRECISION"),
DataType::Boolean => write!(f, "BOOLEAN"),
DataType::Date => write!(f, "DATE"),
DataType::Time(timezone_info) => write!(f, "TIME{}", timezone_info),
DataType::Datetime => write!(f, "DATETIME"),
DataType::Timestamp(timezone_info) => write!(f, "TIMESTAMP{}", timezone_info),
DataType::Interval => write!(f, "INTERVAL"),
DataType::Regclass => write!(f, "REGCLASS"),
DataType::Text => write!(f, "TEXT"),
DataType::String => write!(f, "STRING"),
DataType::Bytea => write!(f, "BYTEA"),
DataType::Array(ty) => write!(f, "{}[]", ty),
DataType::Custom(ty) => write!(f, "{}", ty),
DataType::Enum(vals) => {
write!(f, "ENUM(")?;
for (i, v) in vals.iter().enumerate() {
if i != 0 {
write!(f, ", ")?;
}
write!(f, "'{}'", escape_single_quote_string(v))?;
}
write!(f, ")")
}
DataType::Set(vals) => {
write!(f, "SET(")?;
for (i, v) in vals.iter().enumerate() {
if i != 0 {
write!(f, ", ")?;
}
write!(f, "'{}'", escape_single_quote_string(v))?;
}
write!(f, ")")
}
}
}
}
fn format_type_with_optional_length(
f: &mut fmt::Formatter,
sql_type: &'static str,
len: &Option<u64>,
unsigned: bool,
) -> fmt::Result {
write!(f, "{}", sql_type)?;
if let Some(len) = len {
write!(f, "({})", len)?;
}
if unsigned {
write!(f, " UNSIGNED")?;
}
Ok(())
}
fn format_character_string_type(
f: &mut fmt::Formatter,
sql_type: &str,
size: &Option<CharacterLength>,
) -> fmt::Result {
write!(f, "{}", sql_type)?;
if let Some(size) = size {
write!(f, "({})", size)?;
}
Ok(())
}
/// Timestamp and Time data types information about TimeZone formatting.
///
/// This is more related to a display information than real differences between each variant. To
/// guarantee compatibility with the input query we must maintain its exact information.
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub enum TimezoneInfo {
/// No information about time zone. E.g., TIMESTAMP
None,
/// Temporal type 'WITH TIME ZONE'. E.g., TIMESTAMP WITH TIME ZONE, [standard], [Oracle]
///
/// [standard]: https://jakewheat.github.io/sql-overview/sql-2016-foundation-grammar.html#datetime-type
/// [Oracle]: https://docs.oracle.com/en/database/oracle/oracle-database/12.2/nlspg/datetime-data-types-and-time-zone-support.html#GUID-3F1C388E-C651-43D5-ADBC-1A49E5C2CA05
WithTimeZone,
/// Temporal type 'WITHOUT TIME ZONE'. E.g., TIME WITHOUT TIME ZONE, [standard], [Postgresql]
///
/// [standard]: https://jakewheat.github.io/sql-overview/sql-2016-foundation-grammar.html#datetime-type
/// [Postgresql]: https://www.postgresql.org/docs/current/datatype-datetime.html
WithoutTimeZone,
/// Postgresql specific `WITH TIME ZONE` formatting, for both TIME and TIMESTAMP. E.g., TIMETZ, [Postgresql]
///
/// [Postgresql]: https://www.postgresql.org/docs/current/datatype-datetime.html
Tz,
}
impl fmt::Display for TimezoneInfo {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
TimezoneInfo::None => {
write!(f, "")
}
TimezoneInfo::WithTimeZone => {
write!(f, " WITH TIME ZONE")
}
TimezoneInfo::WithoutTimeZone => {
write!(f, " WITHOUT TIME ZONE")
}
TimezoneInfo::Tz => {
// TZ is the only one that is displayed BEFORE the precision, so the datatype display
// must be aware of that. Check <https://www.postgresql.org/docs/14/datatype-datetime.html>
// for more information
write!(f, "TZ")
}
}
}
}
/// Additional information for `NUMERIC`, `DECIMAL`, and `DEC` data types
/// following the 2016 [standard].
///
/// [standard]: https://jakewheat.github.io/sql-overview/sql-2016-foundation-grammar.html#exact-numeric-type
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub enum ExactNumberInfo {
/// No additional information e.g. `DECIMAL`
None,
/// Only precision information e.g. `DECIMAL(10)`
Precision(u64),
/// Precision and scale information e.g. `DECIMAL(10,2)`
PrecisionAndScale(u64, u64),
}
impl fmt::Display for ExactNumberInfo {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
ExactNumberInfo::None => {
write!(f, "")
}
ExactNumberInfo::Precision(p) => {
write!(f, "({p})")
}
ExactNumberInfo::PrecisionAndScale(p, s) => {
write!(f, "({p},{s})")
}
}
}
}
/// Information about [character length][1], including length and possibly unit.
///
/// [1]: https://jakewheat.github.io/sql-overview/sql-2016-foundation-grammar.html#character-length
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub struct CharacterLength {
/// Default (if VARYING) or maximum (if not VARYING) length
pub length: u64,
/// Optional unit. If not informed, the ANSI handles it as CHARACTERS implicitly
pub unit: Option<CharLengthUnits>,
}
impl fmt::Display for CharacterLength {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "{}", self.length)?;
if let Some(unit) = &self.unit {
write!(f, " {}", unit)?;
}
Ok(())
}
}
/// Possible units for characters, initially based on 2016 ANSI [standard][1].
///
/// [1]: https://jakewheat.github.io/sql-overview/sql-2016-foundation-grammar.html#char-length-units
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
pub enum CharLengthUnits {
/// CHARACTERS unit
Characters,
/// OCTETS unit
Octets,
}
impl fmt::Display for CharLengthUnits {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match self {
Self::Characters => {
write!(f, "CHARACTERS")
}
Self::Octets => {
write!(f, "OCTETS")
}
}
}
}