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CONC-691: Obtain sql statement from statement handle

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Added an option STMT_ATTR_SQL_STATEMENT in API function
mariadb_stmt_attr_get which returns a MARIADB_CONST_STRING
structure which contains SQL statement from last
mysql_stmt_prepare() call.
This commit is contained in:
Georg Richter
2024-12-12 12:07:34 +01:00
parent 6ca0574b7b
commit 3794a86544
4 changed files with 59 additions and 4 deletions
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18
libmariadb/mariadb_stmt.c
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@@ -80,6 +80,9 @@ typedef struct
} MADB_STMT_EXTENSION;
static my_bool net_stmt_close(MYSQL_STMT *stmt, my_bool remove);
extern MARIADB_CONST_STRING ma_const_string_copy_root(MA_MEM_ROOT *memroot,
const char *str,
size_t length);
static my_bool is_not_null= 0;
static my_bool is_null= 1;
@@ -1186,6 +1189,9 @@ unsigned long long STDCALL mysql_stmt_affected_rows(MYSQL_STMT *stmt)
my_bool STDCALL mysql_stmt_attr_get(MYSQL_STMT *stmt, enum enum_stmt_attr_type attr_type, void *value)
{
switch (attr_type) {
case STMT_ATTR_SQL_STATEMENT:
*(MARIADB_CONST_STRING *)value= stmt->sql;
break;
case STMT_ATTR_STATE:
*(enum mysql_stmt_state *)value= stmt->state;
break;
@@ -1841,6 +1847,8 @@ int STDCALL mysql_stmt_prepare(MYSQL_STMT *stmt, const char *query, unsigned lon
sizeof(stmt_id), 1, stmt))
goto fail;
}
stmt->sql= ma_const_string_copy_root(&stmt->mem_root, query, length);
if (mysql->methods->db_command(mysql, COM_STMT_PREPARE, query, length, 1, stmt))
goto fail;
@@ -2398,10 +2406,16 @@ MYSQL_RES * STDCALL mysql_stmt_result_metadata(MYSQL_STMT *stmt)
my_bool STDCALL mysql_stmt_reset(MYSQL_STMT *stmt)
{
my_bool rc= 0;
if (stmt->stmt_id > 0 &&
stmt->stmt_id != (unsigned long) -1)
return mysql_stmt_internal_reset(stmt, 0);
return 0;
rc= mysql_stmt_internal_reset(stmt, 0);
/* clear last sql statement */
stmt->sql.str= 0;
stmt->sql.length= 0;
return rc;
}
const char * STDCALL mysql_stmt_sqlstate(MYSQL_STMT *stmt)