From 35698da9c9e9b82201efb74ccba6aec37b3b68bd Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Sat, 2 Jul 2022 15:47:42 +0800
Subject: [PATCH] enh(query): add cast from binary/nchar -> timestamp for
 date-time string

---
 source/libs/scalar/src/sclfunc.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/source/libs/scalar/src/sclfunc.c b/source/libs/scalar/src/sclfunc.c
index 3a219b78b5..0f3c9271c0 100644
--- a/source/libs/scalar/src/sclfunc.c
+++ b/source/libs/scalar/src/sclfunc.c
@@ -934,9 +934,14 @@ int32_t castFunction(SScalarParam *pInput, int32_t inputNum, SScalarParam *pOutp
         break;
       }
       case TSDB_DATA_TYPE_TIMESTAMP: {
+        int64_t timeVal;
         if (inputType == TSDB_DATA_TYPE_BINARY || inputType == TSDB_DATA_TYPE_NCHAR) {
-          //convert to 0
-          *(int64_t *)output = 0;
+          int32_t ret = convertStringToTimestamp(inputType, input, TSDB_TIME_PRECISION_MILLI, &timeVal);
+          if (ret != TSDB_CODE_SUCCESS) {
+            *(int64_t *)output = 0;
+          } else {
+            *(int64_t *)output = timeVal;
+          }
         } else {
           GET_TYPED_DATA(*(int64_t *)output, int64_t, inputType, input);
         }