[TD-11220]<feature>(query): time related functions

src/common/src/texpr.c

@@ -100,7 +100,13 @@ int32_t exprTreeValidateExprNode(tExprNode *pExpr) {
     if (!IS_NUMERIC_TYPE(leftType) || !IS_NUMERIC_TYPE(rightType)) {
       return TSDB_CODE_TSC_INVALID_OPERATION;
     }
-    if (leftType == TSDB_DATA_TYPE_TIMESTAMP || rightType == TSDB_DATA_TYPE_TIMESTAMP) {
+    if (IS_TIMESTAMP_TYPE(leftType) || IS_TIMESTAMP_TYPE(rightType)) {
+      //timestamp cannot be used in arithmetic
+      //operation with other data types
+      if (!IS_TIMESTAMP_TYPE(leftType) || !IS_TIMESTAMP_TYPE(rightType) ||
+          (pExpr->_node.optr != TSDB_BINARY_OP_ADD && pExpr->_node.optr != TSDB_BINARY_OP_SUBTRACT)) {
+        return TSDB_CODE_TSC_INVALID_OPERATION;
+      }
       pExpr->resultType = TSDB_DATA_TYPE_TIMESTAMP;
       pExpr->resultBytes = tDataTypes[TSDB_DATA_TYPE_TIMESTAMP].bytes;
     } else {

src/inc/ttype.h

@@ -208,7 +208,7 @@ typedef struct {
 #define IS_FLOAT_TYPE(_t)            ((_t) == TSDB_DATA_TYPE_FLOAT || (_t) == TSDB_DATA_TYPE_DOUBLE)
 #define IS_TIMESTAMP_TYPE(_t)        ((_t) == TSDB_DATA_TYPE_TIMESTAMP)
 
-#define IS_NUMERIC_TYPE(_t) ((IS_SIGNED_NUMERIC_TYPE(_t)) || (IS_UNSIGNED_NUMERIC_TYPE(_t)) || (IS_FLOAT_TYPE(_t)) || IS_TIMESTAMP_TYPE(_t))
+#define IS_NUMERIC_TYPE(_t) ((IS_SIGNED_NUMERIC_TYPE(_t)) || (IS_UNSIGNED_NUMERIC_TYPE(_t)) || (IS_FLOAT_TYPE(_t)) || (IS_TIMESTAMP_TYPE(_t)))
 
 #define IS_VALID_TINYINT(_t)    ((_t) > INT8_MIN  && (_t) <= INT8_MAX)
 #define IS_VALID_SMALLINT(_t)   ((_t) > INT16_MIN && (_t) <= INT16_MAX)