Github user traflm commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/703#discussion_r78926449
--- Diff: core/sql/optimizer/SynthType.cpp ---
@@ -1010,7 +1010,81 @@ const NAType *BuiltinFunction::synthesizeType()
SQLChar(maxLength, typ1.supportsSQLnull());
}
break;
+
+ case ITM_ISIPV4:
+ case ITM_ISIPV6:
+ {
+ // type cast any params
+ ValueId vid1 = child(0)->getValueId();
+ SQLChar c1(ComSqlId::MAX_QUERY_ID_LEN);
+ vid1.coerceType(c1, NA_CHARACTER_TYPE);
+ //input type must be string
+ const NAType &typ1 = child(0)->getValueId().getType();
+
+ if (typ1.getTypeQualifier() != NA_CHARACTER_TYPE)
+ {
+ *CmpCommon::diags() << DgSqlCode(-4045) << DgString0("IS_IP");
+ return NULL;
+ }
+ retType = new HEAP
+ SQLSmall(TRUE, FALSE);
--- End diff --
this return value according to MySQL is an integer either 0 or 1. So I use
small int.
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