fix(query): fix first(*) result incorrect for all NULL entry tables;

TD-15957

source/libs/function/inc/builtinsimpl.h

@@ -84,9 +84,9 @@ int32_t diffFunction(SqlFunctionCtx *pCtx);
 
 bool getFirstLastFuncEnv(struct SFunctionNode* pFunc, SFuncExecEnv* pEnv);
 int32_t firstFunction(SqlFunctionCtx *pCtx);
-int32_t firstCombine(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx);
 int32_t lastFunction(SqlFunctionCtx *pCtx);
-int32_t lastFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
+int32_t firstLastFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock);
+int32_t firstCombine(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx);
 int32_t lastCombine(SqlFunctionCtx* pDestCtx, SqlFunctionCtx* pSourceCtx);
 
 bool getTopBotFuncEnv(SFunctionNode* UNUSED_PARAM(pFunc), SFuncExecEnv* pEnv);

source/libs/function/src/builtins.c

@@ -1063,7 +1063,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .getEnvFunc   = getFirstLastFuncEnv,
     .initFunc     = functionSetup,
     .processFunc  = firstFunction,
-    .finalizeFunc = functionFinalize,
+    .finalizeFunc = firstLastFinalize,
     .combineFunc = firstCombine,
   },
   {
@@ -1074,7 +1074,7 @@ const SBuiltinFuncDefinition funcMgtBuiltins[] = {
     .getEnvFunc   = getFirstLastFuncEnv,
     .initFunc     = functionSetup,
     .processFunc  = lastFunction,
-    .finalizeFunc = lastFinalize,
+    .finalizeFunc = firstLastFinalize,
     .combineFunc  = lastCombine,
   },
   {

source/libs/function/src/builtinsimpl.c

@@ -2219,7 +2219,7 @@ int32_t lastFunction(SqlFunctionCtx* pCtx) {
   return TSDB_CODE_SUCCESS;
 }
 
-int32_t lastFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
+int32_t firstLastFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
   int32_t          slotId = pCtx->pExpr->base.resSchema.slotId;
   SColumnInfoData* pCol = taosArrayGet(pBlock->pDataBlock, slotId);