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-rw-r--r--sql/item_cmpfunc.cc11
1 files changed, 6 insertions, 5 deletions
diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc
index e2faa51479c..7881ca1994c 100644
--- a/sql/item_cmpfunc.cc
+++ b/sql/item_cmpfunc.cc
@@ -4692,6 +4692,7 @@ bool Item_func_like::fix_fields(THD *thd, Item **ref)
String *escape_str= escape_item->val_str(&cmp.value1);
if (escape_str)
{
+ const char *escape_str_ptr= escape_str->ptr();
if (escape_used_in_parsing && (
(((thd->variables.sql_mode & MODE_NO_BACKSLASH_ESCAPES) &&
escape_str->numchars() != 1) ||
@@ -4706,9 +4707,9 @@ bool Item_func_like::fix_fields(THD *thd, Item **ref)
CHARSET_INFO *cs= escape_str->charset();
my_wc_t wc;
int rc= cs->cset->mb_wc(cs, &wc,
- (const uchar*) escape_str->ptr(),
- (const uchar*) escape_str->ptr() +
- escape_str->length());
+ (const uchar*) escape_str_ptr,
+ (const uchar*) escape_str_ptr +
+ escape_str->length());
escape= (int) (rc > 0 ? wc : '\\');
}
else
@@ -4725,13 +4726,13 @@ bool Item_func_like::fix_fields(THD *thd, Item **ref)
{
char ch;
uint errors;
- uint32 cnvlen= copy_and_convert(&ch, 1, cs, escape_str->ptr(),
+ uint32 cnvlen= copy_and_convert(&ch, 1, cs, escape_str_ptr,
escape_str->length(),
escape_str->charset(), &errors);
escape= cnvlen ? ch : '\\';
}
else
- escape= *(escape_str->ptr());
+ escape= escape_str_ptr ? *escape_str_ptr : '\\';
}
}
else