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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#include <drizzled/sql_select.h>
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#include <drizzled/error.h>
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#include <drizzled/show.h>
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#include <drizzled/item/cmpfunc.h>
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#include <drizzled/item/cache_row.h>
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#include <drizzled/item/type_holder.h>
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#include <drizzled/item/sum.h>
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#include <drizzled/item/copy_string.h>
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#include <drizzled/function/str/conv_charset.h>
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#include <drizzled/sql_base.h>
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#include <drizzled/util/convert.h>
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#include <drizzled/plugin/client.h>
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#include <drizzled/time_functions.h>
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#include <drizzled/field/str.h>
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#include <drizzled/field/num.h>
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#include <drizzled/field/blob.h>
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#include <drizzled/field/date.h>
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#include <drizzled/field/datetime.h>
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#include <drizzled/field/decimal.h>
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#include <drizzled/field/double.h>
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#include <drizzled/field/enum.h>
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#include <drizzled/field/epoch.h>
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#include <drizzled/field/int32.h>
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#include <drizzled/field/int64.h>
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#include <drizzled/field/microtime.h>
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#include <drizzled/field/null.h>
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#include <drizzled/field/real.h>
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#include <drizzled/field/size.h>
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#include <drizzled/field/time.h>
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#include <drizzled/field/varstring.h>
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#include <drizzled/current_session.h>
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#include <drizzled/session.h>
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#include <drizzled/internal/m_string.h>
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#include "drizzled/sql_select.h"
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#include "drizzled/error.h"
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#include "drizzled/show.h"
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#include "drizzled/item/cmpfunc.h"
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#include "drizzled/item/cache_row.h"
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#include "drizzled/item/type_holder.h"
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#include "drizzled/item/sum.h"
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#include "drizzled/item/copy_string.h"
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#include "drizzled/function/str/conv_charset.h"
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#include "drizzled/sql_base.h"
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#include "drizzled/util/convert.h"
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#include "drizzled/plugin/client.h"
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#include "drizzled/time_functions.h"
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#include "drizzled/field/str.h"
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#include "drizzled/field/num.h"
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#include "drizzled/field/blob.h"
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#include "drizzled/field/date.h"
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#include "drizzled/field/datetime.h"
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#include "drizzled/field/decimal.h"
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#include "drizzled/field/double.h"
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#include "drizzled/field/enum.h"
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#include "drizzled/field/epoch.h"
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#include "drizzled/field/int32.h"
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#include "drizzled/field/int64.h"
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#include "drizzled/field/null.h"
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#include "drizzled/field/real.h"
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#include "drizzled/field/size.h"
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#include "drizzled/field/time.h"
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#include "drizzled/field/varstring.h"
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#include "drizzled/internal/m_string.h"
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String *Item::val_string_from_decimal(String *str)
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type::Decimal dec_buf, *dec= val_decimal(&dec_buf);
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my_decimal dec_buf, *dec= val_decimal(&dec_buf);
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class_decimal_round(E_DEC_FATAL_ERROR, dec, decimals, false, &dec_buf);
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class_decimal2string(&dec_buf, 0, str);
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my_decimal_round(E_DEC_FATAL_ERROR, dec, decimals, false, &dec_buf);
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my_decimal2string(E_DEC_FATAL_ERROR, &dec_buf, 0, 0, 0, str);
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type::Decimal *Item::val_decimal_from_real(type::Decimal *decimal_value)
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my_decimal *Item::val_decimal_from_real(my_decimal *decimal_value)
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double nr= val_real();
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double2_class_decimal(E_DEC_FATAL_ERROR, nr, decimal_value);
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double2my_decimal(E_DEC_FATAL_ERROR, nr, decimal_value);
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return (decimal_value);
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type::Decimal *Item::val_decimal_from_int(type::Decimal *decimal_value)
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my_decimal *Item::val_decimal_from_int(my_decimal *decimal_value)
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int64_t nr= val_int();
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int2_class_decimal(E_DEC_FATAL_ERROR, nr, unsigned_flag, decimal_value);
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int2my_decimal(E_DEC_FATAL_ERROR, nr, unsigned_flag, decimal_value);
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return decimal_value;
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type::Decimal *Item::val_decimal_from_string(type::Decimal *decimal_value)
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my_decimal *Item::val_decimal_from_string(my_decimal *decimal_value)
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end_ptr= (char*) res->ptr()+ res->length();
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if (decimal_value->store(E_DEC_FATAL_ERROR & ~E_DEC_BAD_NUM,
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if (str2my_decimal(E_DEC_FATAL_ERROR & ~E_DEC_BAD_NUM,
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res->charset()) & E_DEC_BAD_NUM)
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decimal_value) & E_DEC_BAD_NUM)
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push_warning_printf(&getSession(),
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push_warning_printf(current_session,
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DRIZZLE_ERROR::WARN_LEVEL_WARN,
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ER_TRUNCATED_WRONG_VALUE,
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ER(ER_TRUNCATED_WRONG_VALUE), "DECIMAL",
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return decimal_value;
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type::Decimal *Item::val_decimal_from_date(type::Decimal *decimal_value)
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my_decimal *Item::val_decimal_from_date(my_decimal *decimal_value)
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if (get_date(ltime, TIME_FUZZY_DATE))
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if (get_date(<ime, TIME_FUZZY_DATE))
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decimal_value->set_zero();
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my_decimal_set_zero(decimal_value);
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null_value= 1; // set NULL, stop processing
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return date2_class_decimal(<ime, decimal_value);
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return date2my_decimal(<ime, decimal_value);
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type::Decimal *Item::val_decimal_from_time(type::Decimal *decimal_value)
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my_decimal *Item::val_decimal_from_time(my_decimal *decimal_value)
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if (get_time(<ime))
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decimal_value->set_zero();
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my_decimal_set_zero(decimal_value);
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return date2_class_decimal(<ime, decimal_value);
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return date2my_decimal(<ime, decimal_value);
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double Item::val_real_from_decimal()
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/* Note that fix_fields may not be called for Item_avg_field items */
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type::Decimal value_buff, *dec_val= val_decimal(&value_buff);
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my_decimal value_buff, *dec_val= val_decimal(&value_buff);
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class_decimal2double(E_DEC_FATAL_ERROR, dec_val, &result);
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my_decimal2double(E_DEC_FATAL_ERROR, dec_val, &result);
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/* Note that fix_fields may not be called for Item_avg_field items */
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type::Decimal value, *dec_val= val_decimal(&value);
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my_decimal value, *dec_val= val_decimal(&value);
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dec_val->val_int32(E_DEC_FATAL_ERROR, unsigned_flag, &result);
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my_decimal2int(E_DEC_FATAL_ERROR, dec_val, unsigned_flag, &result);
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bool Item::save_time_in_field(Field *field)
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int Item::save_time_in_field(Field *field)
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if (get_time(<ime))
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return set_field_to_null(field);
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field->set_notnull();
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return field->store_time(ltime, type::DRIZZLE_TIMESTAMP_TIME);
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return field->store_time(<ime, DRIZZLE_TIMESTAMP_TIME);
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bool Item::save_date_in_field(Field *field)
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int Item::save_date_in_field(Field *field)
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if (get_date(ltime, TIME_FUZZY_DATE))
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if (get_date(<ime, TIME_FUZZY_DATE))
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return set_field_to_null(field);
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field->set_notnull();
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return field->store_time(ltime, type::DRIZZLE_TIMESTAMP_DATETIME);
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return field->store_time(<ime, DRIZZLE_TIMESTAMP_DATETIME);
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with_sum_func(false),
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is_autogenerated_name(true),
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with_subselect(false),
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collation(&my_charset_bin, DERIVATION_COERCIBLE),
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_session(*current_session)
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collation(&my_charset_bin, DERIVATION_COERCIBLE)
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cmp_context= (Item_result)-1;
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/* Put item in free list so that we can free all items at end */
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next= getSession().free_list;
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getSession().free_list= this;
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Session *session= current_session;
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next= session->free_list;
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session->free_list= this;
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Item constructor can be called during execution other then SQL_COM
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command => we should check session->getLex()->current_select on zero (session->lex
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command => we should check session->lex->current_select on zero (session->lex
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can be uninitialised)
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if (getSession().getLex()->current_select)
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if (session->lex->current_select)
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enum_parsing_place place= getSession().getLex()->current_select->parsing_place;
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enum_parsing_place place= session->lex->current_select->parsing_place;
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if (place == SELECT_LIST || place == IN_HAVING)
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getSession().getLex()->current_select->select_n_having_items++;
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session->lex->current_select->select_n_having_items++;
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is_autogenerated_name(item->is_autogenerated_name),
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with_subselect(item->with_subselect),
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collation(item->collation),
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cmp_context(item->cmp_context),
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cmp_context(item->cmp_context)
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/* Put this item in the session's free list */
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next= getSession().free_list;
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getSession().free_list= this;
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next= session->free_list;
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session->free_list= this;
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uint32_t Item::float_length(uint32_t decimals_par) const
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Item_result restype= result_type();
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if ((restype == DECIMAL_RESULT) || (restype == INT_RESULT))
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return min(class_decimal_length_to_precision(max_length, decimals, unsigned_flag),
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return min(my_decimal_length_to_precision(max_length, decimals, unsigned_flag),
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(uint32_t) DECIMAL_MAX_PRECISION);
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return min(max_length, (uint32_t) DECIMAL_MAX_PRECISION);
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int Item::decimal_int_part() const
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return class_decimal_int_part(decimal_precision(), decimals);
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return my_decimal_int_part(decimal_precision(), decimals);
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void Item::print(String *str, enum_query_type)
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if (orig_len != length && ! is_autogenerated_name)
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push_warning_printf(&getSession(),
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push_warning_printf(current_session,
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DRIZZLE_ERROR::WARN_LEVEL_WARN,
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ER_NAME_BECOMES_EMPTY,
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ER(ER_NAME_BECOMES_EMPTY),
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str + length - orig_len);
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push_warning_printf(&getSession(),
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push_warning_printf(current_session,
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DRIZZLE_ERROR::WARN_LEVEL_WARN,
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ER_REMOVED_SPACES,
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ER(ER_REMOVED_SPACES),
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return conv->safe ? conv : NULL;
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bool Item::get_date(type::Time <ime,uint32_t fuzzydate)
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bool Item::get_date(DRIZZLE_TIME *ltime,uint32_t fuzzydate)
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else if (result_type() == STRING_RESULT)
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char buff[type::Time::MAX_STRING_LENGTH];
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String tmp(buff,sizeof(buff), &my_charset_bin),*res;
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if (!(res=val_str(&tmp)) ||
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str_to_datetime_with_warn(&getSession(), res->ptr(), res->length(),
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<ime, fuzzydate) <= type::DRIZZLE_TIMESTAMP_ERROR)
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int64_t value= val_int();
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type::datetime_t date_value;
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ltime.convert(date_value, value, fuzzydate);
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if (not type::is_valid(date_value))
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char buff[DECIMAL_LONGLONG_DIGITS], *end;
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end= internal::int64_t10_to_str(value, buff, -10);
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make_truncated_value_warning(&getSession(), DRIZZLE_ERROR::WARN_LEVEL_WARN,
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buff, (int) (end-buff), type::DRIZZLE_TIMESTAMP_NONE, NULL);
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if (result_type() == STRING_RESULT)
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String tmp(buff,sizeof(buff), &my_charset_bin),*res;
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if (!(res=val_str(&tmp)) ||
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str_to_datetime_with_warn(res->ptr(), res->length(),
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ltime, fuzzydate) <= DRIZZLE_TIMESTAMP_ERROR)
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int64_t value= val_int();
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if (number_to_datetime(value, ltime, fuzzydate, &was_cut) == -1L)
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end= internal::int64_t10_to_str(value, buff, -10);
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make_truncated_value_warning(current_session, DRIZZLE_ERROR::WARN_LEVEL_WARN,
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buff, (int) (end-buff), DRIZZLE_TIMESTAMP_NONE,
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memset(ltime, 0, sizeof(*ltime));
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bool Item::get_time(type::Time <ime)
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bool Item::get_time(DRIZZLE_TIME *ltime)
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char buff[type::Time::MAX_STRING_LENGTH];
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String tmp(buff,sizeof(buff),&my_charset_bin),*res;
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if (!(res=val_str(&tmp)) or
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str_to_time_with_warn(&getSession(), res->ptr(), res->length(), <ime))
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if (!(res=val_str(&tmp)) ||
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str_to_time_with_warn(res->ptr(), res->length(), ltime))
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memset(ltime, 0, sizeof(*ltime));
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bool Item::get_date_result(type::Time <ime,uint32_t fuzzydate)
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bool Item::get_date_result(DRIZZLE_TIME *ltime,uint32_t fuzzydate)
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return get_date(ltime, fuzzydate);
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return get_date(ltime,fuzzydate);
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bool Item::is_null()
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name, decimals, 0, unsigned_flag);
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case DRIZZLE_TYPE_NULL:
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field= new Field_null((unsigned char*) 0, max_length, name);
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field= new Field_null((unsigned char*) 0, max_length, name, &my_charset_bin);
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case DRIZZLE_TYPE_DATE:
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field= new Field_date(maybe_null, name);
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case DRIZZLE_TYPE_MICROTIME:
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field= new field::Microtime(maybe_null, name);
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field= new Field_date(maybe_null, name, &my_charset_bin);
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case DRIZZLE_TYPE_TIMESTAMP:
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field= new field::Epoch(maybe_null, name);
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field= new field::Epoch(maybe_null, name, &my_charset_bin);
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case DRIZZLE_TYPE_DATETIME:
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field= new Field_datetime(maybe_null, name);
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field= new Field_datetime(maybe_null, name, &my_charset_bin);
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case DRIZZLE_TYPE_TIME:
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field= new field::Time(maybe_null, name);
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field= new field::Time(maybe_null, name, &my_charset_bin);
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case DRIZZLE_TYPE_BOOLEAN:
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case DRIZZLE_TYPE_UUID:
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case DRIZZLE_TYPE_ENUM:
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case DRIZZLE_TYPE_VARCHAR:
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uint32_t Item::max_char_length() const
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return max_length / collation.collation->mbmaxlen;
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void Item::fix_length_and_charset(uint32_t max_char_length_arg, CHARSET_INFO *cs)
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max_length= char_to_byte_length_safe(max_char_length_arg, cs->mbmaxlen);
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collation.collation= cs;
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void Item::fix_char_length(uint32_t max_char_length_arg)
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max_length= char_to_byte_length_safe(max_char_length_arg, collation.collation->mbmaxlen);
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void Item::fix_char_length_uint64_t(uint64_t max_char_length_arg)
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uint64_t max_result_length= max_char_length_arg *
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collation.collation->mbmaxlen;
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if (max_result_length >= MAX_BLOB_WIDTH)
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max_length= MAX_BLOB_WIDTH;
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max_length= max_result_length;
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void Item::fix_length_and_charset_datetime(uint32_t max_char_length_arg)
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collation.set(&my_charset_bin);
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fix_char_length(max_char_length_arg);
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Item_result item_cmp_type(Item_result a,Item_result b)
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if (a == STRING_RESULT && b == STRING_RESULT)
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if (res_type == DECIMAL_RESULT)
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type::Decimal item_buf, *item_val,
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my_decimal item_buf, *item_val,
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field_buf, *field_val;
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item_val= item->val_decimal(&item_buf);
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if (item->null_value)
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return 1; // This must be true
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field_val= field->val_decimal(&field_buf);
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return !class_decimal_cmp(item_val, field_val);
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return !my_decimal_cmp(item_val, field_val);
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double result= item->val_real();
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case STRING_RESULT:
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assert(item->collation.collation);
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enum enum_field_types type;
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DATE/TIME fields have STRING_RESULT result type.
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To preserve type they needed to be handled separately.
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if (field::isDateTime(item->field_type()))
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if ((type= item->field_type()) == DRIZZLE_TYPE_DATETIME ||
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type == DRIZZLE_TYPE_TIME ||
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type == DRIZZLE_TYPE_DATE ||
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type == DRIZZLE_TYPE_TIMESTAMP)
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new_field= item->tmp_table_field_from_field_type(table, 1);
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std::ostream& operator<<(std::ostream& output, const Item &item)
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switch (item.type())
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case drizzled::Item::SUBSELECT_ITEM :
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case drizzled::Item::FIELD_ITEM :
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case drizzled::Item::SUM_FUNC_ITEM :
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case drizzled::Item::STRING_ITEM :
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case drizzled::Item::INT_ITEM :
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case drizzled::Item::REAL_ITEM :
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case drizzled::Item::NULL_ITEM :
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case drizzled::Item::VARBIN_ITEM :
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case drizzled::Item::COPY_STR_ITEM :
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case drizzled::Item::FIELD_AVG_ITEM :
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case drizzled::Item::DEFAULT_VALUE_ITEM :
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case drizzled::Item::PROC_ITEM :
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case drizzled::Item::COND_ITEM :
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case drizzled::Item::REF_ITEM :
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case drizzled::Item::FIELD_STD_ITEM :
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case drizzled::Item::FIELD_VARIANCE_ITEM :
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case drizzled::Item::INSERT_VALUE_ITEM :
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case drizzled::Item::ROW_ITEM:
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case drizzled::Item::CACHE_ITEM :
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case drizzled::Item::TYPE_HOLDER :
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case drizzled::Item::PARAM_ITEM :
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case drizzled::Item::DECIMAL_ITEM :
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case drizzled::Item::FUNC_ITEM :
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case drizzled::Item::BOOLEAN_ITEM :
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output << item.full_name();
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output << drizzled::display::type(item.type());
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output << item.name;
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output << drizzled::display::type(item.type());
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return output; // for multiple << operators.