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
|
/*
Copyright (c) 2020, MariaDB Corporation.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
#include "mariadb.h"
#include "sql_type.h"
#include "sql_schema.h"
#include "sql_class.h"
class Schema_oracle: public Schema
{
public:
Schema_oracle(const LEX_CSTRING &name)
:Schema(name)
{ }
const Type_handler *map_data_type(THD *thd, const Type_handler *src)
const
{
if (src == &type_handler_newdate)
return thd->type_handler_for_datetime();
return src;
}
Create_func *find_native_function_builder(THD *thd, const LEX_CSTRING &name)
const
{
return native_functions_hash_oracle.find(thd, name);
}
Item *make_item_func_replace(THD *thd,
Item *subj,
Item *find,
Item *replace) const;
Item *make_item_func_substr(THD *thd,
const Lex_substring_spec_st &spec) const;
Item *make_item_func_trim(THD *thd, const Lex_trim_st &spec) const;
};
class Schema_maxdb: public Schema
{
public:
Schema_maxdb(const LEX_CSTRING &name)
:Schema(name)
{ }
const Type_handler *map_data_type(THD *thd, const Type_handler *src)
const
{
if (src == &type_handler_timestamp ||
src == &type_handler_timestamp2)
return thd->type_handler_for_datetime();
return src;
}
};
Schema mariadb_schema(Lex_cstring(STRING_WITH_LEN("mariadb_schema")));
Schema_oracle oracle_schema(Lex_cstring(STRING_WITH_LEN("oracle_schema")));
Schema_maxdb maxdb_schema(Lex_cstring(STRING_WITH_LEN("maxdb_schema")));
const Schema &oracle_schema_ref= oracle_schema;
Schema *Schema::find_by_name(const LEX_CSTRING &name)
{
DBUG_ASSERT(name.str);
if (mariadb_schema.eq_name(name))
return &mariadb_schema;
if (oracle_schema.eq_name(name))
return &oracle_schema;
if (maxdb_schema.eq_name(name))
return &maxdb_schema;
return NULL;
}
Schema *Schema::find_implied(THD *thd)
{
if (thd->variables.sql_mode & MODE_ORACLE)
return &oracle_schema;
if (thd->variables.sql_mode & MODE_MAXDB)
return &maxdb_schema;
return &mariadb_schema;
}
Create_func *
Schema::find_native_function_builder(THD *thd, const LEX_CSTRING &name) const
{
return native_functions_hash.find(thd, name);
}
Item *Schema::make_item_func_call_native(THD *thd,
const Lex_ident_sys &name,
List<Item> *args) const
{
Create_func *builder= find_native_function_builder(thd, name);
if (builder)
return builder->create_func(thd, &name, args);
my_error(ER_FUNCTION_NOT_DEFINED, MYF(0), name.str);
return NULL;
}
Item *Schema::make_item_func_replace(THD *thd,
Item *subj,
Item *find,
Item *replace) const
{
return new (thd->mem_root) Item_func_replace(thd, subj, find, replace);
}
Item *Schema::make_item_func_substr(THD *thd,
const Lex_substring_spec_st &spec) const
{
return spec.m_for ?
new (thd->mem_root) Item_func_substr(thd, spec.m_subject, spec.m_from,
spec.m_for) :
new (thd->mem_root) Item_func_substr(thd, spec.m_subject, spec.m_from);
}
Item *Schema::make_item_func_trim(THD *thd, const Lex_trim_st &spec) const
{
return spec.make_item_func_trim_std(thd);
}
Item *Schema_oracle::make_item_func_replace(THD *thd,
Item *subj,
Item *find,
Item *replace) const
{
return new (thd->mem_root) Item_func_replace_oracle(thd, subj, find, replace);
}
Item *Schema_oracle::make_item_func_substr(THD *thd,
const Lex_substring_spec_st &spec) const
{
return spec.m_for ?
new (thd->mem_root) Item_func_substr_oracle(thd, spec.m_subject,
spec.m_from,
spec.m_for) :
new (thd->mem_root) Item_func_substr_oracle(thd, spec.m_subject,
spec.m_from);
}
Item *Schema_oracle::make_item_func_trim(THD *thd,
const Lex_trim_st &spec) const
{
return spec.make_item_func_trim_oracle(thd);
}
|
