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MXS-1196: Hide implicit translations

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The embedded library, when used in Oracle mode, reports the use of
"concat" as "concat_operator_oracle" and the use of "decode" as "case.
This commit is contained in:
Johan Wikman 2017-05-18 13:58:54 +03:00
parent 6c334aa12c
commit ee54f3ac61
1 changed files with 46 additions and 0 deletions
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46
query_classifier/qc_mysqlembedded/qc_mysqlembedded.cc
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@ -95,6 +95,49 @@ typedef struct parsing_info_st
#endif
} parsing_info_t;
/**
* Defines what a particular name should be mapped to.
*/
typedef struct name_mapping
{
const char* from;
const char* to;
} NAME_MAPPING;
static NAME_MAPPING function_name_mappings_default[] =
{
{ NULL, NULL }
};
static NAME_MAPPING function_name_mappings_oracle[] =
{
{ "concat_operator_oracle", "concat" },
{ "case", "decode" },
{ NULL, NULL }
};
static NAME_MAPPING* function_name_mappings = function_name_mappings_default;
static const char* map_function_name(const char* from)
{
NAME_MAPPING* map = function_name_mappings;
const char* to = NULL;
while (!to && map->from)
{
if (strcasecmp(from, map->from) == 0)
{
to = map->to;
}
else
{
++map;
}
}
return to ? to : from;
}
#define QTYPE_LESS_RESTRICTIVE_THAN_WRITE(t) (t<QUERY_TYPE_WRITE ? true : false)
static THD* get_or_create_thd_for_parsing(MYSQL* mysql, char* query_str);
@ -2101,6 +2144,8 @@ static void add_function_info(parsing_info_t* info,
{
ss_dassert(name);
name = map_function_name(name);
QC_FUNCTION_INFO item = { (char*)name, usage };
size_t i;
@ -2827,6 +2872,7 @@ int32_t qc_mysql_setup(const char* zArgs)
if (strcmp(value, "MODE_ORACLE") == 0)
{
sql_mode = MODE_ORACLE;
function_name_mappings = function_name_mappings_oracle;
}
else
{