Github user andyyangcn commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/833#discussion_r87964197
--- Diff: core/sql/common/stringinfo.h ---
@@ -0,0 +1,137 @@
+#ifndef STRINGINFO_H
+#define STRINGINFO_H
+
+#include <sys/types.h>
+#include <stdarg.h>
+
+#ifndef NULL
+#define NULL ((void *) 0)
+#endif
+
+/*-------------------------
+ * StringInfoData holds information about an extensible string.
+ * data is the current buffer for the string (allocated with
palloc).
+ * len is the current string length. There is
guaranteed to be
+ * a terminating '\0' at data[len], although this
is not very
+ * useful when the string holds binary data rather
than text.
+ * maxlen is the allocated size in bytes of 'data', i.e. the
maximum
+ * string size (including the terminating '\0'
char) that we can
+ * currently store in 'data' without having to
reallocate
+ * more space. We must always have maxlen > len.
+ * cursor is initialized to zero by makeStringInfo or
initStringInfo,
+ * but is not otherwise touched by the
stringinfo.c routines.
+ * Some routines use it to scan through a
StringInfo.
+ *-------------------------
+ */
+typedef struct StringInfoData
+{
+ char *data;
+ int len;
+ int maxlen;
+ int cursor;
+} StringInfoData;
+
+typedef StringInfoData *StringInfo;
--- End diff --
Done.
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