Github user anoopsharma00 commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/552#discussion_r67918004
--- Diff: core/sql/common/NAType.cpp ---
@@ -670,6 +671,84 @@ short NAType::convertTypeToText(char * text, //
OUTPUT
displayCaseSpecific);
}
+short NAType::getMyTypeAsHiveText(NAString * outputStr) // output
+{
+ Lng32 fs_datatype = getFSDatatype();
+
+ switch (fs_datatype)
+ {
+ case REC_MIN_F_CHAR_H ... REC_MAX_F_CHAR_H:
+ *outputStr = "string";
+ break;
+
+ case REC_MIN_V_CHAR_H ... REC_MAX_V_CHAR_H:
+ {
+ SQLVarChar * ct = (SQLVarChar*)this;
+ if (ct->wasHiveString())
+ *outputStr = "string";
--- End diff --
yes, that is correct.
Both hive string and varchar datatypes are represented as traf varchar
datatypes.
hive varchar has predefined length. hive string length is determined by a
session cqd.
The 'wasHiveString' field tells whether it was originally a string
datatype. This is
used during showddl command to show the original datatype.
At a later poing, It will also be used to limit the length of data that can
be put into a hive column.
For hive varchar, it will be limited by the pre-specified length. For hive
string, it will
be limited by the hive length cqd that is set for that session.
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