MDEV-12420: add full list of pcre error messages

sql/item_cmpfunc.cc

@@ -5193,15 +5193,77 @@ void Regexp_processor_pcre::pcre_exec_warn(int rc) const
   */
   switch (rc)
   {
+  case PCRE_ERROR_NULL:
+    errmsg= "pcre_exec: null arguement passed";
+    break;
+  case PCRE_ERROR_BADOPTION:
+    errmsg= "pcre_exec: bad option";
+    break;
+  case PCRE_ERROR_BADMAGIC:
+    errmsg= "pcre_exec: bad magic - not a compiled regex";
+    break;
+  case PCRE_ERROR_UNKNOWN_OPCODE:
+    errmsg= "pcre_exec: error in compiled regex";
+    break;
   case PCRE_ERROR_NOMEMORY:
     errmsg= "pcre_exec: Out of memory";
     break;
+  case PCRE_ERROR_NOSUBSTRING:
+    errmsg= "pcre_exec: no substring";
+    break;
+  case PCRE_ERROR_MATCHLIMIT:
+    errmsg= "pcre_exec: match limit exceeded";
+    break;
+  case PCRE_ERROR_CALLOUT:
+    errmsg= "pcre_exec: callout error";
+    break;
   case PCRE_ERROR_BADUTF8:
     errmsg= "pcre_exec: Invalid utf8 byte sequence in the subject string";
     break;
+  case PCRE_ERROR_BADUTF8_OFFSET:
+    errmsg= "pcre_exec: Started at invalid location within utf8 byte sequence";
+    break;
+  case PCRE_ERROR_PARTIAL:
+    errmsg= "pcre_exec: partial match";
+    break;
+  case PCRE_ERROR_INTERNAL:
+    errmsg= "pcre_exec: internal error";
+    break;
+  case PCRE_ERROR_BADCOUNT:
+    errmsg= "pcre_exec: ovesize is negative";
+    break;
+  case PCRE_ERROR_RECURSIONLIMIT:
+    my_snprintf(buf, sizeof(buf), "pcre_exec: recursion limit of %ld exceeded",
+                m_pcre_extra.match_limit_recursion);
+    errmsg= buf;
+    break;
+  case PCRE_ERROR_BADNEWLINE:
+    errmsg= "pcre_exec: bad newline options";
+    break;
+  case PCRE_ERROR_BADOFFSET:
+    errmsg= "pcre_exec: start offset negative or greater than string length";
+    break;
+  case PCRE_ERROR_SHORTUTF8:
+    errmsg= "pcre_exec: ended in middle of utf8 sequence";
+    break;
+  case PCRE_ERROR_JIT_STACKLIMIT:
+    errmsg= "pcre_exec: insufficient stack memory for JIT compile";
+    break;
   case PCRE_ERROR_RECURSELOOP:
     errmsg= "pcre_exec: Recursion loop detected";
     break;
+  case PCRE_ERROR_BADMODE:
+    errmsg= "pcre_exec: compiled pattern passed to wrong bit library function";
+    break;
+  case PCRE_ERROR_BADENDIANNESS:
+    errmsg= "pcre_exec: compiled pattern passed to wrong endianness processor";
+    break;
+  case PCRE_ERROR_JIT_BADOPTION:
+    errmsg= "pcre_exec: bad jit option";
+    break;
+  case PCRE_ERROR_BADLENGTH:
+    errmsg= "pcre_exec: negative length";
+    break;
   default:
     /*
       As other error codes should normally not happen,