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/*
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 override
{
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 override
{
return native_functions_hash_oracle.find(thd, name);
}
Item *make_item_func_replace(THD *thd,
Item *subj,
Item *find,
Item *replace) const override;
Item *make_item_func_substr(THD *thd,
const Lex_substring_spec_st &spec) const override;
Item *make_item_func_trim(THD *thd, const Lex_trim_st &spec) const override;
};
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 override
{
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_routine &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);
}
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