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

dulints in host variables.

dict/dict0crea.c

@@ -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);

include/dict0dict.h

@@ -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;

include/pars0pars.h

@@ -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

include/que0que.h

@@ -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 */
 

pars/pars0pars.c

@@ -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. */
 

que/que0que.c

@@ -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);
+}