enh(index): update index filter

source/libs/executor/src/indexoperator.c

@@ -21,7 +21,9 @@
 
 typedef struct SIFCtx {
   int32_t   code;
-  SHashObj *pRes; /* element is SScalarParam */
+  SHashObj *pRes;    /* element is SScalarParam */
+  bool      noExec;  // true: just iterate condition tree, and add hint to executor plan
+  // SIdxFltStatus st;
 } SIFCtx;
 
 #define SIF_ERR_RET(c)                \
@@ -55,11 +57,12 @@ typedef struct SIFParam {
   SArray *result;
   char *  condValue;
 
-  uint8_t  colValType;
-  col_id_t colId;
-  int64_t  suid;  // add later
-  char     dbName[TSDB_DB_NAME_LEN];
-  char     colName[TSDB_COL_NAME_LEN];
+  SIdxFltStatus status;
+  uint8_t       colValType;
+  col_id_t      colId;
+  int64_t       suid;  // add later
+  char          dbName[TSDB_DB_NAME_LEN];
+  char          colName[TSDB_COL_NAME_LEN];
 } SIFParam;
 
 static int32_t sifGetFuncFromSql(EOperatorType src, EIndexQueryType *dst) {
@@ -82,6 +85,9 @@ static int32_t sifGetFuncFromSql(EOperatorType src, EIndexQueryType *dst) {
 }
 
 typedef int32_t (*sif_func_t)(SIFParam *left, SIFParam *rigth, SIFParam *output);
+
+static sif_func_t sifNullFunc = NULL;
+// typedef struct SIFWalkParm
 // construct tag filter operator later
 static void destroyTagFilterOperatorInfo(void *param) {
   STagFilterOperatorInfo *pInfo = (STagFilterOperatorInfo *)param;
@@ -114,6 +120,24 @@ static int32_t sifValidateColumn(SColumnNode *cn) {
   return TSDB_CODE_SUCCESS;
 }
 
+static SIdxFltStatus sifMergeCond(ELogicConditionType type, SIdxFltStatus ls, SIdxFltStatus rs) {
+  // enh rule later
+  if (type == LOGIC_COND_TYPE_AND) {
+    if (ls == SFLT_NOT_INDEX || rs == SFLT_NOT_INDEX) {
+      if (ls == SFLT_NOT_INDEX)
+        return rs;
+      else
+        return ls;
+    }
+    return SFLT_COARSE_INDEX;
+  } else if (type == LOGIC_COND_TYPE_OR) {
+    return SFLT_COARSE_INDEX;
+  } else if (type == LOGIC_COND_TYPE_NOT) {
+    return SFLT_NOT_INDEX;
+  }
+  return SFLT_NOT_INDEX;
+}
+
 static int32_t sifGetValueFromNode(SNode *node, char **value) {
   // covert data From snode;
   SValueNode *vn = (SValueNode *)node;
@@ -257,11 +281,11 @@ static int32_t sifDoIndex(SIFParam *left, SIFParam *right, int8_t operType, SIFP
   if (tm == NULL) {
     return TSDB_CODE_QRY_OUT_OF_MEMORY;
   }
-  SIndexMultiTermQuery *mtm = indexMultiTermQueryCreate(MUST);
 
   EIndexQueryType qtype = 0;
   SIF_ERR_RET(sifGetFuncFromSql(operType, &qtype));
 
+  SIndexMultiTermQuery *mtm = indexMultiTermQueryCreate(MUST);
   indexMultiTermQueryAdd(mtm, tm, qtype);
   int ret = indexSearch(NULL, mtm, output->result);
   indexMultiTermQueryDestroy(mtm);
@@ -319,6 +343,7 @@ static int32_t sifNotMatchFunc(SIFParam *left, SIFParam *right, SIFParam *output
   int id = OP_TYPE_NMATCH;
   return sifDoIndex(left, right, id, output);
 }
+
 static int32_t sifDefaultFunc(SIFParam *left, SIFParam *right, SIFParam *output) {
   // add more except
   return TSDB_CODE_QRY_INVALID_INPUT;
@@ -352,9 +377,9 @@ static sif_func_t sifGetOperFn(int32_t funcId) {
     case OP_TYPE_NMATCH:
       return sifNotMatchFunc;
     default:
-      return sifDefaultFunc;
+      return sifNullFunc;
   }
-  return sifDefaultFunc;
+  return sifNullFunc;
 }
 static int32_t sifExecOper(SOperatorNode *node, SIFCtx *ctx, SIFParam *output) {
   int32_t code = 0;
@@ -367,6 +392,11 @@ static int32_t sifExecOper(SOperatorNode *node, SIFCtx *ctx, SIFParam *output) {
   SIF_ERR_RET(sifInitOperParams(&params, node, ctx));
 
   sif_func_t operFn = sifGetOperFn(node->opType);
+  if (ctx->noExec && operFn == NULL) {
+    output->status = SFLT_NOT_INDEX;
+  } else {
+    output->status = SFLT_ACCURATE_INDEX;
+  }
 
   return operFn(&params[0], nParam > 1 ? &params[1] : NULL, output);
 _return:
@@ -385,14 +415,20 @@ static int32_t sifExecLogic(SLogicConditionNode *node, SIFCtx *ctx, SIFParam *ou
   SIFParam *params = NULL;
   SIF_ERR_RET(sifInitParamList(&params, node->pParameterList, ctx));
 
-  for (int32_t m = 0; m < node->pParameterList->length; m++) {
-    // add impl later
-    if (node->condType == LOGIC_COND_TYPE_AND) {
-      taosArrayAddAll(output->result, params[m].result);
-    } else if (node->condType == LOGIC_COND_TYPE_OR) {
-      taosArrayAddAll(output->result, params[m].result);
-    } else if (node->condType == LOGIC_COND_TYPE_NOT) {
-      taosArrayAddAll(output->result, params[m].result);
+  if (ctx->noExec == false) {
+    for (int32_t m = 0; m < node->pParameterList->length; m++) {
+      // add impl later
+      if (node->condType == LOGIC_COND_TYPE_AND) {
+        taosArrayAddAll(output->result, params[m].result);
+      } else if (node->condType == LOGIC_COND_TYPE_OR) {
+        taosArrayAddAll(output->result, params[m].result);
+      } else if (node->condType == LOGIC_COND_TYPE_NOT) {
+        taosArrayAddAll(output->result, params[m].result);
+      }
+    }
+  } else {
+    for (int32_t m = 0; m < node->pParameterList->length; m++) {
+      output->status = sifMergeCond(node->condType, output->status, params[m].status);
     }
   }
 _return:
@@ -486,7 +522,7 @@ static int32_t sifCalculate(SNode *pNode, SIFParam *pDst) {
     return TSDB_CODE_QRY_INVALID_INPUT;
   }
   int32_t code = 0;
-  SIFCtx  ctx = {.code = 0};
+  SIFCtx  ctx = {.code = 0, .noExec = false};
   ctx.pRes = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_NO_LOCK);
   if (NULL == ctx.pRes) {
     qError("index-filter failed to taosHashInit");
@@ -510,6 +546,36 @@ static int32_t sifCalculate(SNode *pNode, SIFParam *pDst) {
   SIF_RET(code);
 }
 
+static int32_t sifGetFltHint(SNode *pNode, SIdxFltStatus *status) {
+  int32_t code = TSDB_CODE_SUCCESS;
+  if (pNode == NULL) {
+    return TSDB_CODE_QRY_INVALID_INPUT;
+  }
+
+  SIFCtx ctx = {.code = 0, .noExec = true};
+  ctx.pRes = taosHashInit(4, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_NO_LOCK);
+  if (NULL == ctx.pRes) {
+    qError("index-filter failed to taosHashInit");
+    return TSDB_CODE_QRY_OUT_OF_MEMORY;
+  }
+
+  nodesWalkExprPostOrder(pNode, sifCalcWalker, &ctx);
+
+  SIF_ERR_RET(ctx.code);
+
+  SIFParam *res = (SIFParam *)taosHashGet(ctx.pRes, (void *)&pNode, POINTER_BYTES);
+  if (res == NULL) {
+    qError("no valid res in hash, node:(%p), type(%d)", (void *)&pNode, nodeType(pNode));
+    SIF_ERR_RET(TSDB_CODE_QRY_APP_ERROR);
+  }
+  *status = res->status;
+
+  sifFreeParam(res);
+  taosHashRemove(ctx.pRes, (void *)&pNode, POINTER_BYTES);
+
+  SIF_RET(code);
+}
+
 int32_t doFilterTag(const SNode *pFilterNode, SArray *result) {
   if (pFilterNode == NULL) {
     return TSDB_CODE_SUCCESS;
@@ -528,10 +594,14 @@ int32_t doFilterTag(const SNode *pFilterNode, SArray *result) {
 }
 
 SIdxFltStatus idxGetFltStatus(SNode *pFilterNode) {
+  SIdxFltStatus st = SFLT_NOT_INDEX;
   if (pFilterNode == NULL) {
     return SFLT_NOT_INDEX;
   }
+  SFilterInfo *filter = NULL;
+  // todo move to the initialization function
+  SIF_ERR_RET(filterInitFromNode((SNode *)pFilterNode, &filter, 0));
 
-  // impl later
-  return SFLT_ACCURATE_INDEX;
+  SIF_ERR_RET(sifGetFltHint((SNode *)pFilterNode, &st));
+  return st;
 }