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[TD-2635]<feature>: support next fill option.

This commit is contained in:
Haojun Liao 2021-01-15 15:08:25 +08:00
parent b15eb99494
commit a9360afaf0
7 changed files with 305 additions and 283 deletions
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11
src/client/src/tscLocalMerge.c
View File

@ -979,14 +979,13 @@ static void doFillResult(SSqlObj *pSql, SLocalReducer *pLocalReducer, bool doneO
pQueryInfo->limit.offset -= newRows;
pRes->numOfRows = 0;
int32_t rpoints = taosNumOfRemainRows(pFillInfo);
if (rpoints <= 0) {
if (!taosFillHasMoreResults(pFillInfo)) {
if (!doneOutput) { // reduce procedure has not completed yet, but current results for fill are exhausted
break;
}
// all output in current group are completed
int32_t totalRemainRows = (int32_t)getNumOfResWithFill(pFillInfo, actualETime, pLocalReducer->resColModel->capacity);
int32_t totalRemainRows = (int32_t)getNumOfResultsAfterFillGap(pFillInfo, actualETime, pLocalReducer->resColModel->capacity);
if (totalRemainRows <= 0) {
break;
}
@ -1337,14 +1336,14 @@ static bool doBuildFilledResultForGroup(SSqlObj *pSql) {
SLocalReducer *pLocalReducer = pRes->pLocalReducer;
SFillInfo *pFillInfo = pLocalReducer->pFillInfo;
if (pFillInfo != NULL && taosNumOfRemainRows(pFillInfo) > 0) {
if (pFillInfo != NULL && taosFillHasMoreResults(pFillInfo)) {
assert(pQueryInfo->fillType != TSDB_FILL_NONE);
tFilePage *pFinalDataBuf = pLocalReducer->pResultBuf;
int64_t etime = *(int64_t *)(pFinalDataBuf->data + TSDB_KEYSIZE * (pFillInfo->numOfRows - 1));
// the first column must be the timestamp column
int32_t rows = (int32_t) getNumOfResWithFill(pFillInfo, etime, pLocalReducer->resColModel->capacity);
int32_t rows = (int32_t) getNumOfResultsAfterFillGap(pFillInfo, etime, pLocalReducer->resColModel->capacity);
if (rows > 0) { // do fill gap
doFillResult(pSql, pLocalReducer, false);
}
@ -1373,7 +1372,7 @@ static bool doHandleLastRemainData(SSqlObj *pSql) {
((pRes->numOfRowsGroup < pQueryInfo->limit.limit && pQueryInfo->limit.limit > 0) || (pQueryInfo->limit.limit < 0))) {
int64_t etime = (pQueryInfo->order.order == TSDB_ORDER_ASC)? pQueryInfo->window.ekey : pQueryInfo->window.skey;
int32_t rows = (int32_t)getNumOfResWithFill(pFillInfo, etime, pLocalReducer->resColModel->capacity);
int32_t rows = (int32_t)getNumOfResultsAfterFillGap(pFillInfo, etime, pLocalReducer->resColModel->capacity);
if (rows > 0) {
doFillResult(pSql, pLocalReducer, true);
}

2
src/client/src/tscSQLParser.c
View File

@ -4514,6 +4514,8 @@ int32_t parseFillClause(SSqlCmd* pCmd, SQueryInfo* pQueryInfo, SQuerySQL* pQuery
}
} else if (strncasecmp(pItem->pVar.pz, "prev", 4) == 0 && pItem->pVar.nLen == 4) {
pQueryInfo->fillType = TSDB_FILL_PREV;
} else if (strncasecmp(pItem->pVar.pz, "next", 4) == 0 && pItem->pVar.nLen == 4) {
pQueryInfo->fillType = TSDB_FILL_NEXT;
} else if (strncasecmp(pItem->pVar.pz, "linear", 6) == 0 && pItem->pVar.nLen == 6) {
pQueryInfo->fillType = TSDB_FILL_LINEAR;
} else if (strncasecmp(pItem->pVar.pz, "value", 5) == 0 && pItem->pVar.nLen == 5) {

8
src/common/src/ttypes.c
View File

@ -524,15 +524,18 @@ void assignVal(char *val, const char *src, int32_t len, int32_t type) {
switch (type) {
case TSDB_DATA_TYPE_BOOL:
case TSDB_DATA_TYPE_TINYINT:
case TSDB_DATA_TYPE_UTINYINT:
*((int8_t *)val) = GET_INT8_VAL(src);
break;
case TSDB_DATA_TYPE_SMALLINT:
case TSDB_DATA_TYPE_USMALLINT:
*((int16_t *)val) = GET_INT16_VAL(src);
break;
case TSDB_DATA_TYPE_INT: {
case TSDB_DATA_TYPE_INT:
case TSDB_DATA_TYPE_UINT:
*((int32_t *)val) = GET_INT32_VAL(src);
break;
}
case TSDB_DATA_TYPE_FLOAT:
SET_FLOAT_VAL(val, GET_FLOAT_VAL(src));
break;
@ -540,6 +543,7 @@ void assignVal(char *val, const char *src, int32_t len, int32_t type) {
SET_DOUBLE_VAL(val, GET_DOUBLE_VAL(src));
break;
case TSDB_DATA_TYPE_BIGINT:
case TSDB_DATA_TYPE_UBIGINT:
case TSDB_DATA_TYPE_TIMESTAMP:
*((int64_t *)val) = GET_INT64_VAL(src);
break;

35
src/inc/taosmsg.h
View File

@ -153,30 +153,31 @@ enum _mgmt_table {
#define TSDB_ALTER_TABLE_DROP_COLUMN 6
#define TSDB_ALTER_TABLE_CHANGE_COLUMN 7
#define TSDB_FILL_NONE 0
#define TSDB_FILL_NULL 1
#define TSDB_FILL_SET_VALUE 2
#define TSDB_FILL_LINEAR 3
#define TSDB_FILL_PREV 4
#define TSDB_FILL_NONE 0
#define TSDB_FILL_NULL 1
#define TSDB_FILL_SET_VALUE 2
#define TSDB_FILL_LINEAR 3
#define TSDB_FILL_PREV 4
#define TSDB_FILL_NEXT 5
#define TSDB_ALTER_USER_PASSWD 0x1
#define TSDB_ALTER_USER_PASSWD 0x1
#define TSDB_ALTER_USER_PRIVILEGES 0x2
#define TSDB_KILL_MSG_LEN 30
#define TSDB_KILL_MSG_LEN 30
#define TSDB_VN_READ_ACCCESS ((char)0x1)
#define TSDB_VN_WRITE_ACCCESS ((char)0x2)
#define TSDB_VN_READ_ACCCESS ((char)0x1)
#define TSDB_VN_WRITE_ACCCESS ((char)0x2)
#define TSDB_VN_ALL_ACCCESS (TSDB_VN_READ_ACCCESS | TSDB_VN_WRITE_ACCCESS)
#define TSDB_COL_NORMAL 0x0u // the normal column of the table
#define TSDB_COL_TAG 0x1u // the tag column type
#define TSDB_COL_UDC 0x2u // the user specified normal string column, it is a dummy column
#define TSDB_COL_NULL 0x4u // the column filter NULL or not
#define TSDB_COL_NORMAL 0x0u // the normal column of the table
#define TSDB_COL_TAG 0x1u // the tag column type
#define TSDB_COL_UDC 0x2u // the user specified normal string column, it is a dummy column
#define TSDB_COL_NULL 0x4u // the column filter NULL or not
#define TSDB_COL_IS_TAG(f) (((f&(~(TSDB_COL_NULL)))&TSDB_COL_TAG) != 0)
#define TSDB_COL_IS_NORMAL_COL(f) ((f&(~(TSDB_COL_NULL))) == TSDB_COL_NORMAL)
#define TSDB_COL_IS_UD_COL(f) ((f&(~(TSDB_COL_NULL))) == TSDB_COL_UDC)
#define TSDB_COL_REQ_NULL(f) (((f)&TSDB_COL_NULL) != 0)
#define TSDB_COL_IS_TAG(f) (((f&(~(TSDB_COL_NULL)))&TSDB_COL_TAG) != 0)
#define TSDB_COL_IS_NORMAL_COL(f) ((f&(~(TSDB_COL_NULL))) == TSDB_COL_NORMAL)
#define TSDB_COL_IS_UD_COL(f) ((f&(~(TSDB_COL_NULL))) == TSDB_COL_UDC)
#define TSDB_COL_REQ_NULL(f) (((f)&TSDB_COL_NULL) != 0)
extern char *taosMsg[];

4
src/query/inc/qFill.h
View File

@ -82,9 +82,9 @@ void taosFillCopyInputDataFromFilePage(SFillInfo* pFillInfo, const tFilePage** p
void taosFillCopyInputDataFromOneFilePage(SFillInfo* pFillInfo, const tFilePage* pInput);
int64_t getNumOfResWithFill(SFillInfo* pFillInfo, int64_t ekey, int32_t maxNumOfRows);
bool taosFillHasMoreResults(SFillInfo* pFillInfo);
int32_t taosNumOfRemainRows(SFillInfo *pFillInfo);
int64_t getNumOfResultsAfterFillGap(SFillInfo* pFillInfo, int64_t ekey, int32_t maxNumOfRows);
int32_t taosGetLinearInterpolationVal(int32_t type, SPoint *point1, SPoint *point2, SPoint *point);

14
src/query/src/qExecutor.c
View File

@ -4176,7 +4176,7 @@ static void stableApplyFunctionsOnBlock(SQueryRuntimeEnv *pRuntimeEnv, SDataBloc
}
}
bool queryHasRemainResForTableQuery(SQueryRuntimeEnv* pRuntimeEnv) {
bool hasNotReturnedResults(SQueryRuntimeEnv* pRuntimeEnv) {
SQuery *pQuery = pRuntimeEnv->pQuery;
SFillInfo *pFillInfo = pRuntimeEnv->pFillInfo;
@ -4186,8 +4186,7 @@ bool queryHasRemainResForTableQuery(SQueryRuntimeEnv* pRuntimeEnv) {
if (pQuery->fillType != TSDB_FILL_NONE && !isPointInterpoQuery(pQuery)) {
// There are results not returned to client yet, so filling applied to the remain result is required firstly.
int32_t remain = taosNumOfRemainRows(pFillInfo);
if (remain > 0) {
if (taosFillHasMoreResults(pFillInfo)) {
return true;
}
@ -4201,7 +4200,7 @@ bool queryHasRemainResForTableQuery(SQueryRuntimeEnv* pRuntimeEnv) {
* first result row in the actual result set will fill nothing.
*/
if (Q_STATUS_EQUAL(pQuery->status, QUERY_COMPLETED)) {
int32_t numOfTotal = (int32_t)getNumOfResWithFill(pFillInfo, pQuery->window.ekey, (int32_t)pQuery->rec.capacity);
int32_t numOfTotal = (int32_t)getNumOfResultsAfterFillGap(pFillInfo, pQuery->window.ekey, (int32_t)pQuery->rec.capacity);
return numOfTotal > 0;
}
@ -4269,7 +4268,7 @@ static void doCopyQueryResultToMsg(SQInfo *pQInfo, int32_t numOfRows, char *data
setQueryStatus(pQuery, QUERY_OVER);
}
} else {
if (!queryHasRemainResForTableQuery(&pQInfo->runtimeEnv)) {
if (!hasNotReturnedResults(&pQInfo->runtimeEnv)) {
setQueryStatus(pQuery, QUERY_OVER);
}
}
@ -4296,7 +4295,6 @@ int32_t doFillGapsInResults(SQueryRuntimeEnv* pRuntimeEnv, tFilePage **pDst, int
pQInfo, pFillInfo->numOfRows, ret, pQuery->limit.offset, ret - pQuery->limit.offset, 0);
ret -= (int32_t)pQuery->limit.offset;
// todo !!!!there exactly number of interpo is not valid.
for (int32_t i = 0; i < pQuery->numOfOutput; ++i) {
memmove(pDst[i]->data, pDst[i]->data + pQuery->pExpr1[i].bytes * pQuery->limit.offset,
ret * pQuery->pExpr1[i].bytes);
@ -4314,7 +4312,7 @@ int32_t doFillGapsInResults(SQueryRuntimeEnv* pRuntimeEnv, tFilePage **pDst, int
ret = 0;
}
if (!queryHasRemainResForTableQuery(pRuntimeEnv)) {
if (!hasNotReturnedResults(pRuntimeEnv)) {
return ret;
}
}
@ -5774,7 +5772,7 @@ static void tableQueryImpl(SQInfo *pQInfo) {
SQueryRuntimeEnv *pRuntimeEnv = &pQInfo->runtimeEnv;
SQuery * pQuery = pRuntimeEnv->pQuery;
if (queryHasRemainResForTableQuery(pRuntimeEnv)) {
if (hasNotReturnedResults(pRuntimeEnv)) {
if (pQuery->fillType != TSDB_FILL_NONE) {
/*
* There are remain results that are not returned due to result interpolation

514
src/query/src/qFill.c
View File

@ -25,6 +25,251 @@
#include "queryLog.h"
#define FILL_IS_ASC_FILL(_f) ((_f)->order == TSDB_ORDER_ASC)
#define DO_INTERPOLATION(_v1, _v2, _k1, _k2, _k) ((_v1) + ((_v2) - (_v1)) * (((double)(_k)) - ((double)(_k1))) / (((double)(_k2)) - ((double)(_k1))))
static void setTagsValue(SFillInfo* pFillInfo, tFilePage** data, int32_t genRows) {
for(int32_t j = 0; j < pFillInfo->numOfCols; ++j) {
SFillColInfo* pCol = &pFillInfo->pFillCol[j];
if (TSDB_COL_IS_NORMAL_COL(pCol->flag)) {
continue;
}
char* val1 = elePtrAt(data[j]->data, pCol->col.bytes, genRows);
assert(pCol->tagIndex >= 0 && pCol->tagIndex < pFillInfo->numOfTags);
SFillTagColInfo* pTag = &pFillInfo->pTags[pCol->tagIndex];
assert (pTag->col.colId == pCol->col.colId);
assignVal(val1, pTag->tagVal, pCol->col.bytes, pCol->col.type);
}
}
static void setNullValueForRow(SFillInfo* pFillInfo, tFilePage** data, int32_t numOfCol, int32_t rowIndex) {
// the first are always the timestamp column, so start from the second column.
for (int32_t i = 1; i < numOfCol; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
char* output = elePtrAt(data[i]->data, pCol->col.bytes, rowIndex);
setNull(output, pCol->col.type, pCol->col.bytes);
}
}
static void doFillOneRowResult(SFillInfo* pFillInfo, tFilePage** data, char** srcData, int64_t ts, bool outOfBound) {
char* prev = pFillInfo->prevValues;
char* next = pFillInfo->nextValues;
SPoint point1, point2, point;
int32_t step = GET_FORWARD_DIRECTION_FACTOR(pFillInfo->order);
// set the primary timestamp column value
int32_t index = pFillInfo->numOfCurrent;
char* val = elePtrAt(data[0]->data, TSDB_KEYSIZE, index);
*(TSKEY*) val = pFillInfo->currentKey;
// set the other values
if (pFillInfo->type == TSDB_FILL_PREV) {
char* p = FILL_IS_ASC_FILL(pFillInfo) ? prev : next;
if (p != NULL) {
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
char* output = elePtrAt(data[i]->data, pCol->col.bytes, index);
assignVal(output, p + pCol->col.offset, pCol->col.bytes, pCol->col.type);
}
} else { // no prev value yet, set the value for NULL
setNullValueForRow(pFillInfo, data, pFillInfo->numOfCols, index);
}
} else if (pFillInfo->type == TSDB_FILL_NEXT) {
char* p = FILL_IS_ASC_FILL(pFillInfo)? next : prev;
if (p != NULL) {
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
char* output = elePtrAt(data[i]->data, pCol->col.bytes, index);
assignVal(output, p + pCol->col.offset, pCol->col.bytes, pCol->col.type);
}
} else { // no prev value yet, set the value for NULL
setNullValueForRow(pFillInfo, data, pFillInfo->numOfCols, index);
}
} else if (pFillInfo->type == TSDB_FILL_LINEAR) {
// TODO : linear interpolation supports NULL value
if (prev != NULL && !outOfBound) {
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
int16_t type = pCol->col.type;
int16_t bytes = pCol->col.bytes;
char *val1 = elePtrAt(data[i]->data, pCol->col.bytes, index);
if (type == TSDB_DATA_TYPE_BINARY|| type == TSDB_DATA_TYPE_NCHAR || type == TSDB_DATA_TYPE_BOOL) {
setNull(val1, pCol->col.type, bytes);
continue;
}
point1 = (SPoint){.key = *(TSKEY*)(prev), .val = prev + pCol->col.offset};
point2 = (SPoint){.key = ts, .val = srcData[i] + pFillInfo->index * bytes};
point = (SPoint){.key = pFillInfo->currentKey, .val = val1};
taosGetLinearInterpolationVal(type, &point1, &point2, &point);
}
} else {
setNullValueForRow(pFillInfo, data, pFillInfo->numOfCols, index);
}
} else { /* fill the default value */
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
char* val1 = elePtrAt(data[i]->data, pCol->col.bytes, index);
assignVal(val1, (char*)&pCol->fillVal.i, pCol->col.bytes, pCol->col.type);
}
}
setTagsValue(pFillInfo, data, index);
pFillInfo->currentKey = taosTimeAdd(pFillInfo->currentKey, pFillInfo->interval.sliding * step, pFillInfo->interval.slidingUnit, pFillInfo->precision);
pFillInfo->numOfCurrent++;
}
static void initBeforeAfterDataBuf(SFillInfo* pFillInfo, char** next) {
if (*next != NULL) {
return;
}
*next = calloc(1, pFillInfo->rowSize);
for (int i = 1; i < pFillInfo->numOfCols; i++) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
setNull(*next + pCol->col.offset, pCol->col.type, pCol->col.bytes);
}
}
static void copyCurrentRowIntoBuf(SFillInfo* pFillInfo, char** srcData, char* buf) {
int32_t rowIndex = pFillInfo->index;
for (int32_t i = 0; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
memcpy(buf + pCol->col.offset, srcData[i] + rowIndex * pCol->col.bytes, pCol->col.bytes);
}
}
static int32_t fillResultImpl(SFillInfo* pFillInfo, tFilePage** data, int32_t outputRows) {
pFillInfo->numOfCurrent = 0;
char** srcData = pFillInfo->pData;
char** prev = &pFillInfo->prevValues;
char** next = &pFillInfo->nextValues;
int32_t step = GET_FORWARD_DIRECTION_FACTOR(pFillInfo->order);
if (FILL_IS_ASC_FILL(pFillInfo)) {
assert(pFillInfo->currentKey >= pFillInfo->start);
} else {
assert(pFillInfo->currentKey <= pFillInfo->start);
}
while (pFillInfo->numOfCurrent < outputRows) {
int64_t ts = ((int64_t*)pFillInfo->pData[0])[pFillInfo->index];
// set the next value for interpolation
if ((pFillInfo->currentKey < ts && FILL_IS_ASC_FILL(pFillInfo)) ||
(pFillInfo->currentKey > ts && !FILL_IS_ASC_FILL(pFillInfo))) {
initBeforeAfterDataBuf(pFillInfo, next);
copyCurrentRowIntoBuf(pFillInfo, srcData, *next);
}
if (((pFillInfo->currentKey < ts && FILL_IS_ASC_FILL(pFillInfo)) || (pFillInfo->currentKey > ts && !FILL_IS_ASC_FILL(pFillInfo))) &&
pFillInfo->numOfCurrent < outputRows) {
// fill the gap between two actual input rows
while (((pFillInfo->currentKey < ts && FILL_IS_ASC_FILL(pFillInfo)) ||
(pFillInfo->currentKey > ts && !FILL_IS_ASC_FILL(pFillInfo))) &&
pFillInfo->numOfCurrent < outputRows) {
doFillOneRowResult(pFillInfo, data, srcData, ts, false);
}
// output buffer is full, abort
if (pFillInfo->numOfCurrent == outputRows) {
pFillInfo->numOfTotal += pFillInfo->numOfCurrent;
return outputRows;
}
} else {
assert(pFillInfo->currentKey == ts);
initBeforeAfterDataBuf(pFillInfo, prev);
// assign rows to dst buffer
for (int32_t i = 0; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
char* output = elePtrAt(data[i]->data, pCol->col.bytes, pFillInfo->numOfCurrent);
char* src = elePtrAt(srcData[i], pCol->col.bytes, pFillInfo->index);
if (i == 0 || (pCol->functionId != TSDB_FUNC_COUNT && !isNull(src, pCol->col.type)) ||
(pCol->functionId == TSDB_FUNC_COUNT && GET_INT64_VAL(src) != 0)) {
assignVal(output, src, pCol->col.bytes, pCol->col.type);
memcpy(*prev + pCol->col.offset, src, pCol->col.bytes);
} else { // i > 0 and data is null , do interpolation
if (pFillInfo->type == TSDB_FILL_PREV) {
assignVal(output, *prev + pCol->col.offset, pCol->col.bytes, pCol->col.type);
} else if (pFillInfo->type == TSDB_FILL_LINEAR) {
assignVal(output, src, pCol->col.bytes, pCol->col.type);
memcpy(*prev + pCol->col.offset, src, pCol->col.bytes);
} else {
assignVal(output, (char*)&pCol->fillVal.i, pCol->col.bytes, pCol->col.type);
}
}
}
// set the tag value for final result
setTagsValue(pFillInfo, data, pFillInfo->numOfCurrent);
pFillInfo->currentKey = taosTimeAdd(pFillInfo->currentKey, pFillInfo->interval.sliding * step,
pFillInfo->interval.slidingUnit, pFillInfo->precision);
pFillInfo->index += 1;
pFillInfo->numOfCurrent += 1;
}
if (pFillInfo->index >= pFillInfo->numOfRows || pFillInfo->numOfCurrent >= outputRows) {
/* the raw data block is exhausted, next value does not exists */
if (pFillInfo->index >= pFillInfo->numOfRows) {
tfree(*next);
}
pFillInfo->numOfTotal += pFillInfo->numOfCurrent;
return pFillInfo->numOfCurrent;
}
}
return pFillInfo->numOfCurrent;
}
static int64_t appendFilledResult(SFillInfo* pFillInfo, tFilePage** output, int64_t resultCapacity) {
/*
* These data are generated according to fill strategy, since the current timestamp is out of the time window of
* real result set. Note that we need to keep the direct previous result rows, to generated the filled data.
*/
pFillInfo->numOfCurrent = 0;
while (pFillInfo->numOfCurrent < resultCapacity) {
doFillOneRowResult(pFillInfo, output, pFillInfo->pData, pFillInfo->start, true);
}
pFillInfo->numOfTotal += pFillInfo->numOfCurrent;
assert(pFillInfo->numOfCurrent == resultCapacity);
return resultCapacity;
}
// there are no duplicated tags in the SFillTagColInfo list
static int32_t setTagColumnInfo(SFillInfo* pFillInfo, int32_t numOfCols, int32_t capacity) {
@ -68,6 +313,14 @@ static int32_t setTagColumnInfo(SFillInfo* pFillInfo, int32_t numOfCols, int32_t
return rowsize;
}
static int32_t taosNumOfRemainRows(SFillInfo* pFillInfo) {
if (pFillInfo->numOfRows == 0 || (pFillInfo->numOfRows > 0 && pFillInfo->index >= pFillInfo->numOfRows)) {
return 0;
}
return pFillInfo->numOfRows - pFillInfo->index;
}
SFillInfo* taosInitFillInfo(int32_t order, TSKEY skey, int32_t numOfTags, int32_t capacity, int32_t numOfCols,
int64_t slidingTime, int8_t slidingUnit, int8_t precision, int32_t fillType,
SFillColInfo* pCol, void* handle) {
@ -76,22 +329,21 @@ SFillInfo* taosInitFillInfo(int32_t order, TSKEY skey, int32_t numOfTags, int32_
}
SFillInfo* pFillInfo = calloc(1, sizeof(SFillInfo));
taosResetFillInfo(pFillInfo, skey);
pFillInfo->order = order;
pFillInfo->type = fillType;
pFillInfo->pFillCol = pCol;
pFillInfo->order = order;
pFillInfo->type = fillType;
pFillInfo->pFillCol = pCol;
pFillInfo->numOfTags = numOfTags;
pFillInfo->numOfCols = numOfCols;
pFillInfo->precision = precision;
pFillInfo->alloc = capacity;
pFillInfo->handle = handle;
pFillInfo->interval.interval = slidingTime;
pFillInfo->interval.interval = slidingTime;
pFillInfo->interval.intervalUnit = slidingUnit;
pFillInfo->interval.sliding = slidingTime;
pFillInfo->interval.slidingUnit = slidingUnit;
pFillInfo->interval.sliding = slidingTime;
pFillInfo->interval.slidingUnit = slidingUnit;
pFillInfo->pData = malloc(POINTER_BYTES * numOfCols);
if (numOfTags > 0) {
@ -185,7 +437,11 @@ void taosFillCopyInputDataFromOneFilePage(SFillInfo* pFillInfo, const tFilePage*
}
}
int64_t getNumOfResWithFill(SFillInfo* pFillInfo, TSKEY ekey, int32_t maxNumOfRows) {
bool taosFillHasMoreResults(SFillInfo* pFillInfo) {
return taosNumOfRemainRows(pFillInfo) > 0;
}
int64_t getNumOfResultsAfterFillGap(SFillInfo* pFillInfo, TSKEY ekey, int32_t maxNumOfRows) {
int64_t* tsList = (int64_t*) pFillInfo->pData[0];
int32_t numOfRows = taosNumOfRemainRows(pFillInfo);
@ -223,16 +479,6 @@ int64_t getNumOfResWithFill(SFillInfo* pFillInfo, TSKEY ekey, int32_t maxNumOfRo
return (numOfRes > maxNumOfRows) ? maxNumOfRows : numOfRes;
}
int32_t taosNumOfRemainRows(SFillInfo* pFillInfo) {
if (pFillInfo->numOfRows == 0 || (pFillInfo->numOfRows > 0 && pFillInfo->index >= pFillInfo->numOfRows)) {
return 0;
}
return pFillInfo->numOfRows - pFillInfo->index;
}
#define DO_INTERPOLATION(_v1, _v2, _k1, _k2, _k) ((_v1) + ((_v2) - (_v1)) * (((double)(_k)) - ((double)(_k1))) / (((double)(_k2)) - ((double)(_k1))))
int32_t taosGetLinearInterpolationVal(int32_t type, SPoint* point1, SPoint* point2, SPoint* point) {
double v1 = -1;
double v2 = -1;
@ -256,243 +502,15 @@ int32_t taosGetLinearInterpolationVal(int32_t type, SPoint* point1, SPoint* poin
return TSDB_CODE_SUCCESS;
}
static void setTagsValue(SFillInfo* pFillInfo, tFilePage** data, int32_t genRows) {
for(int32_t j = 0; j < pFillInfo->numOfCols; ++j) {
SFillColInfo* pCol = &pFillInfo->pFillCol[j];
if (TSDB_COL_IS_NORMAL_COL(pCol->flag)) {
continue;
}
char* val1 = elePtrAt(data[j]->data, pCol->col.bytes, genRows);
assert(pCol->tagIndex >= 0 && pCol->tagIndex < pFillInfo->numOfTags);
SFillTagColInfo* pTag = &pFillInfo->pTags[pCol->tagIndex];
assert (pTag->col.colId == pCol->col.colId);
assignVal(val1, pTag->tagVal, pCol->col.bytes, pCol->col.type);
}
}
static void setNullValueForRow(SFillInfo* pFillInfo, tFilePage** data, int32_t numOfCol, int32_t rowIndex) {
// the first are always the timestamp column, so start from the second column.
for (int32_t i = 1; i < numOfCol; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
char* output = elePtrAt(data[i]->data, pCol->col.bytes, rowIndex);
setNull(output, pCol->col.type, pCol->col.bytes);
}
}
static void doFillOneRowResult(SFillInfo* pFillInfo, tFilePage** data, char** srcData, int64_t ts, bool outOfBound) {
char* prev = pFillInfo->prevValues;
char* next = pFillInfo->nextValues;
SPoint point1, point2, point;
int32_t step = GET_FORWARD_DIRECTION_FACTOR(pFillInfo->order);
// set the primary timestamp column value
int32_t index = pFillInfo->numOfCurrent;
char* val = elePtrAt(data[0]->data, TSDB_KEYSIZE, index);
*(TSKEY*) val = pFillInfo->currentKey;
// set the other values
if (pFillInfo->type == TSDB_FILL_PREV) {
char* p = FILL_IS_ASC_FILL(pFillInfo) ? prev : next;
if (p != NULL) {
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
char* output = elePtrAt(data[i]->data, pCol->col.bytes, index);
assignVal(output, p + pCol->col.offset, pCol->col.bytes, pCol->col.type);
}
} else { // no prev value yet, set the value for NULL
setNullValueForRow(pFillInfo, data, pFillInfo->numOfCols, index);
}
} else if (pFillInfo->type == TSDB_FILL_LINEAR) {
// TODO : linear interpolation supports NULL value
if (prev != NULL && !outOfBound) {
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
int16_t type = pCol->col.type;
int16_t bytes = pCol->col.bytes;
char *val1 = elePtrAt(data[i]->data, pCol->col.bytes, index);
if (type == TSDB_DATA_TYPE_BINARY|| type == TSDB_DATA_TYPE_NCHAR || type == TSDB_DATA_TYPE_BOOL) {
setNull(val1, pCol->col.type, bytes);
continue;
}
point1 = (SPoint){.key = *(TSKEY*)(prev), .val = prev + pCol->col.offset};
point2 = (SPoint){.key = ts, .val = srcData[i] + pFillInfo->index * bytes};
point = (SPoint){.key = pFillInfo->currentKey, .val = val1};
taosGetLinearInterpolationVal(type, &point1, &point2, &point);
}
} else {
setNullValueForRow(pFillInfo, data, pFillInfo->numOfCols, index);
}
} else { /* fill the default value */
for (int32_t i = 1; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
char* val1 = elePtrAt(data[i]->data, pCol->col.bytes, index);
assignVal(val1, (char*)&pCol->fillVal.i, pCol->col.bytes, pCol->col.type);
}
}
setTagsValue(pFillInfo, data, index);
pFillInfo->currentKey = taosTimeAdd(pFillInfo->currentKey, pFillInfo->interval.sliding * step, pFillInfo->interval.slidingUnit, pFillInfo->precision);
pFillInfo->numOfCurrent++;
}
static void initBeforeAfterDataBuf(SFillInfo* pFillInfo, char** next) {
if (*next != NULL) {
return;
}
*next = calloc(1, pFillInfo->rowSize);
for (int i = 1; i < pFillInfo->numOfCols; i++) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
setNull(*next + pCol->col.offset, pCol->col.type, pCol->col.bytes);
}
}
static void copyCurrentRowIntoBuf(SFillInfo* pFillInfo, char** srcData, char* buf) {
int32_t rowIndex = pFillInfo->index;
for (int32_t i = 0; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
memcpy(buf + pCol->col.offset, srcData[i] + rowIndex * pCol->col.bytes, pCol->col.bytes);
}
}
static int32_t fillResultImpl(SFillInfo* pFillInfo, tFilePage** data, int32_t outputRows) {
pFillInfo->numOfCurrent = 0;
char** srcData = pFillInfo->pData;
char** prev = &pFillInfo->prevValues;
char** next = &pFillInfo->nextValues;
int32_t step = GET_FORWARD_DIRECTION_FACTOR(pFillInfo->order);
if (FILL_IS_ASC_FILL(pFillInfo)) {
assert(pFillInfo->currentKey >= pFillInfo->start);
} else {
assert(pFillInfo->currentKey <= pFillInfo->start);
}
while (pFillInfo->numOfCurrent < outputRows) {
int64_t ts = ((int64_t*)pFillInfo->pData[0])[pFillInfo->index];
if ((pFillInfo->currentKey < ts && FILL_IS_ASC_FILL(pFillInfo)) ||
(pFillInfo->currentKey > ts && !FILL_IS_ASC_FILL(pFillInfo))) {
/* set the next value for interpolation */
initBeforeAfterDataBuf(pFillInfo, next);
copyCurrentRowIntoBuf(pFillInfo, srcData, *next);
}
if (((pFillInfo->currentKey < ts && FILL_IS_ASC_FILL(pFillInfo)) || (pFillInfo->currentKey > ts && !FILL_IS_ASC_FILL(pFillInfo))) &&
pFillInfo->numOfCurrent < outputRows) {
// fill the gap between two actual input rows
while (((pFillInfo->currentKey < ts && FILL_IS_ASC_FILL(pFillInfo)) ||
(pFillInfo->currentKey > ts && !FILL_IS_ASC_FILL(pFillInfo))) &&
pFillInfo->numOfCurrent < outputRows) {
doFillOneRowResult(pFillInfo, data, srcData, ts, false);
}
// output buffer is full, abort
if (pFillInfo->numOfCurrent == outputRows) {
pFillInfo->numOfTotal += pFillInfo->numOfCurrent;
return outputRows;
}
} else {
assert(pFillInfo->currentKey == ts);
initBeforeAfterDataBuf(pFillInfo, prev);
// assign rows to dst buffer
for (int32_t i = 0; i < pFillInfo->numOfCols; ++i) {
SFillColInfo* pCol = &pFillInfo->pFillCol[i];
if (TSDB_COL_IS_TAG(pCol->flag)) {
continue;
}
char* output = elePtrAt(data[i]->data, pCol->col.bytes, pFillInfo->numOfCurrent);
char* src = elePtrAt(srcData[i], pCol->col.bytes, pFillInfo->index);
if (i == 0 || (pCol->functionId != TSDB_FUNC_COUNT && !isNull(src, pCol->col.type)) ||
(pCol->functionId == TSDB_FUNC_COUNT && GET_INT64_VAL(src) != 0)) {
assignVal(output, src, pCol->col.bytes, pCol->col.type);
memcpy(*prev + pCol->col.offset, src, pCol->col.bytes);
} else { // i > 0 and data is null , do interpolation
if (pFillInfo->type == TSDB_FILL_PREV) {
assignVal(output, *prev + pCol->col.offset, pCol->col.bytes, pCol->col.type);
} else if (pFillInfo->type == TSDB_FILL_LINEAR) {
assignVal(output, src, pCol->col.bytes, pCol->col.type);
memcpy(*prev + pCol->col.offset, src, pCol->col.bytes);
} else {
assignVal(output, (char*)&pCol->fillVal.i, pCol->col.bytes, pCol->col.type);
}
}
}
// set the tag value for final result
setTagsValue(pFillInfo, data, pFillInfo->numOfCurrent);
pFillInfo->currentKey = taosTimeAdd(pFillInfo->currentKey, pFillInfo->interval.sliding * step,
pFillInfo->interval.slidingUnit, pFillInfo->precision);
pFillInfo->index += 1;
pFillInfo->numOfCurrent += 1;
}
if (pFillInfo->index >= pFillInfo->numOfRows || pFillInfo->numOfCurrent >= outputRows) {
/* the raw data block is exhausted, next value does not exists */
if (pFillInfo->index >= pFillInfo->numOfRows) {
tfree(*next);
}
pFillInfo->numOfTotal += pFillInfo->numOfCurrent;
return pFillInfo->numOfCurrent;
}
}
return pFillInfo->numOfCurrent;
}
static int64_t fillExternalResults(SFillInfo* pFillInfo, tFilePage** output, int64_t resultCapacity) {
/*
* These data are generated according to fill strategy, since the current timestamp is out of the time window of
* real result set. Note that we need to keep the direct previous result rows, to generated the filled data.
*/
pFillInfo->numOfCurrent = 0;
while (pFillInfo->numOfCurrent < resultCapacity) {
doFillOneRowResult(pFillInfo, output, pFillInfo->pData, pFillInfo->start, true);
}
pFillInfo->numOfTotal += pFillInfo->numOfCurrent;
assert(pFillInfo->numOfCurrent == resultCapacity);
return resultCapacity;
}
int64_t taosFillResultDataBlock(SFillInfo* pFillInfo, tFilePage** output, int32_t capacity) {
int32_t remain = taosNumOfRemainRows(pFillInfo);
int64_t numOfRes = getNumOfResWithFill(pFillInfo, pFillInfo->end, capacity);
int64_t numOfRes = getNumOfResultsAfterFillGap(pFillInfo, pFillInfo->end, capacity);
assert(numOfRes <= capacity);
// no data existed for fill operation now, append result according to the fill strategy
if (remain == 0) {
fillExternalResults(pFillInfo, output, numOfRes);
appendFilledResult(pFillInfo, output, numOfRes);
} else {
fillResultImpl(pFillInfo, output, (int32_t) numOfRes);
assert(numOfRes == pFillInfo->numOfCurrent);