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Add general function to evaluate a sql query. Add function to evaluate

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dulints in host variables.
This commit is contained in:
jan 2006-04-12 10:40:22 +00:00
parent b6e02dd207
commit 7631ed9cde
6 changed files with 81 additions and 21 deletions
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20
dict/dict0crea.c
View file

@ -1246,7 +1246,7 @@ dict_create_or_check_foreign_constraint_tables(void)
}
/********************************************************************
Evaluate the given SQL statement. */
Evaluate the given foreign key SQL statement. */
ulint
dict_foreign_eval_sql(
@ -1258,26 +1258,10 @@ dict_foreign_eval_sql(
dict_foreign_t* foreign,/* in: foreign */
trx_t* trx) /* in: transaction */
{
que_thr_t* thr;
que_t* graph;
ulint error;
FILE* ef = dict_foreign_err_file;
graph = pars_sql(info, sql);
ut_a(graph);
graph->trx = trx;
trx->graph = NULL;
graph->fork_type = QUE_FORK_MYSQL_INTERFACE;
ut_a(thr = que_fork_start_command(graph));
que_run_threads(thr);
error = trx->error_state;
que_graph_free(graph);
error = que_eval_sql(info, sql, trx);
if (error == DB_DUPLICATE_KEY) {
mutex_enter(&dict_foreign_err_mutex);

2
include/dict0dict.h
View file

@ -909,7 +909,6 @@ dict_tables_have_same_db(
dbname '/' tablename */
const char* name2); /* in: table name in the form
dbname '/' tablename */
/*************************************************************************
Scans from pointer onwards. Stops if is at the start of a copy of
'string' where characters are compared without case sensitivity. Stops
@ -921,7 +920,6 @@ dict_scan_to(
/* out: scanned up to this */
const char* ptr, /* in: scan from */
const char* string);/* in: look for this */
/* Buffers for storing detailed information about the latest foreign key
and unique key errors */
extern FILE* dict_foreign_err_file;

16
include/pars0pars.h
View file

@ -505,6 +505,22 @@ pars_info_add_int4_literal(
lint val); /* in: value */
/********************************************************************
Equivalent to:
char buf[8];
mach_write_to_8(buf, val);
pars_info_add_literal(info, name, buf, 8, DATA_BINARY, 0);
except that the buffer is dynamically allocated from the info struct's
heap. */
void
pars_info_add_dulint_literal(
/*=========================*/
pars_info_t* info, /* in: info struct */
const char* name, /* in: name */
dulint val); /* in: value */
/********************************************************************
Add user function. */
void

9
include/que0que.h
View file

@ -331,8 +331,15 @@ void
que_node_print_info(
/*================*/
que_node_t* node); /* in: query graph node */
/*************************************************************************
Evaluate the given SQL */
ulint
que_eval_sql(
/*=========*/
pars_info_t* info, /* out: error code or DB_SUCCESS */
const char* sql, /* in: info struct, or NULL */
trx_t* trx); /* in: trx */
/* Query graph query thread node: the fields are protected by the kernel
mutex with the exceptions named below */

24
pars/pars0pars.c
View file

@ -2016,6 +2016,30 @@ pars_info_add_int4_literal(
pars_info_add_literal(info, name, buf, 4, DATA_INT, 0);
}
/********************************************************************
Equivalent to:
char buf[8];
mach_write_to_8(buf, val);
pars_info_add_literal(info, name, buf, 8, DATA_FIXBINARY, 0);
except that the buffer is dynamically allocated from the info struct's
heap. */
void
pars_info_add_dulint_literal(
/*=========================*/
pars_info_t* info, /* in: info struct */
const char* name, /* in: name */
dulint val) /* in: value */
{
byte* buf = mem_heap_alloc(info->heap, 8);
mach_write_to_8(buf, val);
pars_info_add_literal(info, name, buf, 8, DATA_FIXBINARY, 0);
}
/********************************************************************
Add user function. */

31
que/que0que.c
View file

@ -25,6 +25,7 @@ Created 5/27/1996 Heikki Tuuri
#include "log0log.h"
#include "eval0proc.h"
#include "eval0eval.h"
#include "pars0types.h"
#define QUE_PARALLELIZE_LIMIT (64 * 256 * 256 * 256)
#define QUE_ROUND_ROBIN_LIMIT (64 * 256 * 256 * 256)
@ -1365,3 +1366,33 @@ loop:
goto loop;
}
/*************************************************************************
Evaluate the given SQL */
ulint
que_eval_sql(
/*=========*/
pars_info_t* info, /* out: error code or DB_SUCCESS */
const char* sql, /* in: info struct, or NULL */
trx_t* trx) /* in: trx */
{
que_thr_t* thr;
que_t* graph;
graph = pars_sql(info, sql);
ut_a(graph);
graph->trx = trx;
trx->graph = NULL;
graph->fork_type = QUE_FORK_MYSQL_INTERFACE;
ut_a(thr = que_fork_start_command(graph));
que_run_threads(thr);
que_graph_free(graph);
return(trx->error_state);
}