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Added Innobase to source distribution
Docs/manual.texi: Added Innobase documentation configure.in: Incremented version include/my_base.h: Added option for Innobase myisam/mi_check.c: cleanup mysql-test/t/bdb.test: cleanup mysql-test/t/innobase.test: Extended with new tests from bdb.test mysql-test/t/merge.test: Added test of SHOW create mysys/my_init.c: Fix for UNIXWARE 7 scripts/mysql_install_db.sh: Always write how to start mysqld scripts/safe_mysqld.sh: Fixed type sql/ha_innobase.cc: Update to new version sql/ha_innobase.h: Update to new version sql/handler.h: Added 'update_table_comment()' and 'append_create_info()' sql/sql_delete.cc: Fixes for Innobase sql/sql_select.cc: Fixes for Innobase sql/sql_show.cc: Append create information (for MERGE tables) sql/sql_update.cc: Fixes for Innobase
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248
innobase/include/data0type.ic
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248
innobase/include/data0type.ic
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/******************************************************
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Data types
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(c) 1996 Innobase Oy
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Created 1/16/1996 Heikki Tuuri
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*******************************************************/
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#include "mach0data.h"
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/*************************************************************************
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Sets a data type structure. */
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UNIV_INLINE
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void
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dtype_set(
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/*======*/
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dtype_t* type, /* in: type struct to init */
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ulint mtype, /* in: main data type */
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ulint prtype, /* in: precise type */
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ulint len, /* in: length of type */
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ulint prec) /* in: precision of type */
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{
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ut_ad(type);
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ut_ad(mtype <= DATA_MTYPE_MAX);
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type->mtype = mtype;
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type->prtype = prtype;
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type->len = len;
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type->prec = prec;
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ut_ad(dtype_validate(type));
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}
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/*************************************************************************
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Copies a data type structure. */
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UNIV_INLINE
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void
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dtype_copy(
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/*=======*/
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dtype_t* type1, /* in: type struct to copy to */
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dtype_t* type2) /* in: type struct to copy from */
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{
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*type1 = *type2;
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ut_ad(dtype_validate(type1));
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}
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/*************************************************************************
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Gets the SQL main data type. */
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UNIV_INLINE
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ulint
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dtype_get_mtype(
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/*============*/
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dtype_t* type)
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{
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ut_ad(type);
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return(type->mtype);
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}
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/*************************************************************************
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Gets the precise data type. */
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UNIV_INLINE
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ulint
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dtype_get_prtype(
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/*=============*/
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dtype_t* type)
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{
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ut_ad(type);
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return(type->prtype);
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}
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/*************************************************************************
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Gets the type length. */
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UNIV_INLINE
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ulint
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dtype_get_len(
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/*==========*/
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dtype_t* type)
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{
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ut_ad(type);
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return(type->len);
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}
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/*************************************************************************
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Gets the type precision. */
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UNIV_INLINE
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ulint
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dtype_get_prec(
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/*===========*/
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dtype_t* type)
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{
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ut_ad(type);
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return(type->prec);
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}
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/*************************************************************************
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Gets the padding character code for the type. */
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UNIV_INLINE
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ulint
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dtype_get_pad_char(
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/*===============*/
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/* out: padding character code, or
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ULINT_UNDEFINED if no padding specified */
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dtype_t* type) /* in: type */
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{
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if (type->mtype == DATA_CHAR) {
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/* space is the padding character for all char strings */
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return((ulint)' ');
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}
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ut_ad((type->mtype == DATA_BINARY) || (type->mtype == DATA_VARCHAR));
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/* No padding specified */
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return(ULINT_UNDEFINED);
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}
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/*************************************************************************
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Transforms the character code so that it is ordered appropriately for the
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language. */
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UNIV_INLINE
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ulint
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dtype_collate(
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/*==========*/
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/* out: collation order position */
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dtype_t* type, /* in: type */
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ulint code) /* in: character code stored in database
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record */
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{
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ut_ad((type->mtype == DATA_CHAR) || (type->mtype == DATA_VARCHAR));
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return(toupper(code));
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}
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/**************************************************************************
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Stores to a type the information which determines its alphabetical
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ordering. */
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UNIV_INLINE
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void
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dtype_store_for_order_and_null_size(
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/*================================*/
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byte* buf, /* in: buffer for DATA_ORDER_NULL_TYPE_BUF_SIZE
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bytes */
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dtype_t* type) /* in: type struct */
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{
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ut_ad(4 == DATA_ORDER_NULL_TYPE_BUF_SIZE);
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ut_ad(type->prtype < 256);
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buf[0] = (byte)(type->mtype & 0xFF);
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buf[1] = (byte)(type->prtype & 0xFF);
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mach_write_to_2(buf + 2, type->len & 0xFFFF);
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}
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/**************************************************************************
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Reads of a type the stored information which determines its alphabetical
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ordering. */
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UNIV_INLINE
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void
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dtype_read_for_order_and_null_size(
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/*===============================*/
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dtype_t* type, /* in: type struct */
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byte* buf) /* in: buffer for type order info */
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{
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ut_ad(4 == DATA_ORDER_NULL_TYPE_BUF_SIZE);
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type->mtype = buf[0];
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type->prtype = buf[1];
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type->len = mach_read_from_2(buf + 2);
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}
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/***************************************************************************
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Returns the size of a fixed size data type, 0 if not a fixed size type. */
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UNIV_INLINE
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ulint
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dtype_get_fixed_size(
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/*=================*/
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/* out: fixed size, or 0 */
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dtype_t* type) /* in: type */
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{
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ulint mtype;
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mtype = dtype_get_mtype(type);
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switch (mtype) {
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case DATA_CHAR:
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case DATA_FIXBINARY:
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case DATA_INT:
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case DATA_FLOAT:
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case DATA_DOUBLE:
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case DATA_MYSQL:
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return(dtype_get_len(type));
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case DATA_SYS: if (type->prtype == DATA_ROW_ID) {
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return(DATA_ROW_ID_LEN);
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} else {
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return(0);
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}
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case DATA_VARCHAR:
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case DATA_BINARY:
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case DATA_DECIMAL:
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case DATA_VARMYSQL:
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case DATA_BLOB:
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return(0);
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default: ut_a(0);
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}
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return(0);
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}
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/***************************************************************************
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Returns a stored SQL NULL size for a type. For fixed length types it is
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the fixed length of the type, otherwise 0. */
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UNIV_INLINE
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ulint
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dtype_get_sql_null_size(
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/*====================*/
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/* out: SQL null storage size */
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dtype_t* type) /* in: type */
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{
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return(dtype_get_fixed_size(type));
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}
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/***************************************************************************
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Returns TRUE if a type is of a fixed size. */
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UNIV_INLINE
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ibool
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dtype_is_fixed_size(
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/*================*/
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/* out: TRUE if fixed size */
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dtype_t* type) /* in: type */
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{
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ulint size;
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size = dtype_get_fixed_size(type);
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if (size) {
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return(TRUE);
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}
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return(FALSE);
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}
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