From f03f1cf3aa98d72419010c558eb524b7e15c5f97 Mon Sep 17 00:00:00 2001
From: Ganlin Zhao <ganlinzhao@hotmail.com>
Date: Wed, 2 Mar 2022 16:16:54 +0800
Subject: [PATCH] [TD-13589]<feature>(query): Improve Histogram function output
 as JSON string

---
 src/query/src/qAggMain.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/query/src/qAggMain.c b/src/query/src/qAggMain.c
index d85896f1a5..04efee90ec 100644
--- a/src/query/src/qAggMain.c
+++ b/src/query/src/qAggMain.c
@@ -5100,10 +5100,10 @@ static void histogram_func_finalizer(SQLFunctionCtx *pCtx) {
     int sz;
     if (!pRes->normalized) {
       int64_t count = (int64_t)pRes->orderedBins[i].count;
-      sz = sprintf(pCtx->pOutput + VARSTR_HEADER_SIZE, "(%g:%g]:%"PRId64,
+      sz = sprintf(pCtx->pOutput + VARSTR_HEADER_SIZE, "{\"lower_bin\":%g, \"upper_bin\":%g, \"count\":%"PRId64"}",
                    pRes->orderedBins[i].lower, pRes->orderedBins[i].upper, count);
     } else {
-      sz = sprintf(pCtx->pOutput + VARSTR_HEADER_SIZE, "(%g:%g]:%lf",
+      sz = sprintf(pCtx->pOutput + VARSTR_HEADER_SIZE, "{\"lower_bin\":%g, \"upper_bin\":%g, \"count\":%lf}",
                    pRes->orderedBins[i].lower, pRes->orderedBins[i].upper, pRes->orderedBins[i].count);
     }
     varDataSetLen(pCtx->pOutput, sz);
-- 
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