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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
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St, Fifth Floor, Boston, MA 02110-1301 USA
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place, Suite 330, Boston, MA 02111-1307 USA
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*****************************************************************************/
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/**************************************************//**
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@file include/eval0eval.h
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/******************************************************
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SQL evaluator: evaluates simple data structures, like expressions, in
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eval_node_free_val_buf(
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/*===================*/
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que_node_t* node); /*!< in: query graph node */
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/*****************************************************************//**
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que_node_t* node); /* in: query graph node */
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/*********************************************************************
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Evaluates a symbol table symbol. */
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sym_node_t* sym_node); /*!< in: symbol table node */
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/*****************************************************************//**
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sym_node_t* sym_node); /* in: symbol table node */
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/*********************************************************************
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Evaluates an expression. */
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que_node_t* exp_node); /*!< in: expression */
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/*****************************************************************//**
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que_node_t* exp_node); /* in: expression */
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/*********************************************************************
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Sets an integer value as the value of an expression node. */
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eval_node_set_int_val(
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/*==================*/
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que_node_t* node, /*!< in: expression node */
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lint val); /*!< in: value to set */
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/*****************************************************************//**
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Gets an integer value from an expression node.
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@return integer value */
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que_node_t* node, /* in: expression node */
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lint val); /* in: value to set */
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/*********************************************************************
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Gets an integer value from an expression node. */
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eval_node_get_int_val(
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/*==================*/
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que_node_t* node); /*!< in: expression node */
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/*****************************************************************//**
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/* out: integer value */
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que_node_t* node); /* in: expression node */
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/*********************************************************************
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Copies a binary string value as the value of a query graph node. Allocates a
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new buffer if necessary. */
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eval_node_copy_and_alloc_val(
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/*=========================*/
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que_node_t* node, /*!< in: query graph node */
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const byte* str, /*!< in: binary string */
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ulint len); /*!< in: string length or UNIV_SQL_NULL */
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/*****************************************************************//**
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que_node_t* node, /* in: query graph node */
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const byte* str, /* in: binary string */
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ulint len); /* in: string length or UNIV_SQL_NULL */
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/*********************************************************************
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Copies a query node value to another node. */
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eval_node_copy_val(
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/*===============*/
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que_node_t* node1, /*!< in: node to copy to */
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que_node_t* node2); /*!< in: node to copy from */
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/*****************************************************************//**
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Gets a iboolean value from a query node.
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@return iboolean value */
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que_node_t* node1, /* in: node to copy to */
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que_node_t* node2); /* in: node to copy from */
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/*********************************************************************
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Gets a iboolean value from a query node. */
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eval_node_get_ibool_val(
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/*====================*/
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que_node_t* node); /*!< in: query graph node */
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/*****************************************************************//**
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Evaluates a comparison node.
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@return the result of the comparison */
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/* out: iboolean value */
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que_node_t* node); /* in: query graph node */
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/*********************************************************************
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Evaluates a comparison node. */
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func_node_t* cmp_node); /*!< in: comparison node */
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/* out: the result of the comparison */
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func_node_t* cmp_node); /* in: comparison node */
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#ifndef UNIV_NONINL