48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "taosudf.h"
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DLL_EXPORT int32_t bit_and_init() { return 0; }
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DLL_EXPORT int32_t bit_and_destroy() { return 0; }
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DLL_EXPORT int32_t bit_and(SUdfDataBlock* block, SUdfColumn* resultCol) {
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if (block->numOfCols < 2) {
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return TSDB_CODE_UDF_INVALID_INPUT;
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}
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for (int32_t i = 0; i < block->numOfCols; ++i) {
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SUdfColumn* col = block->udfCols[i];
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if (!(col->colMeta.type == TSDB_DATA_TYPE_INT)) {
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return TSDB_CODE_UDF_INVALID_INPUT;
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}
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}
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SUdfColumnData* resultData = &resultCol->colData;
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for (int32_t i = 0; i < block->numOfRows; ++i) {
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if (udfColDataIsNull(block->udfCols[0], i)) {
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udfColDataSetNull(resultCol, i);
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continue;
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}
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int32_t result = *(int32_t*)udfColDataGetData(block->udfCols[0], i);
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int j = 1;
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for (; j < block->numOfCols; ++j) {
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if (udfColDataIsNull(block->udfCols[j], i)) {
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udfColDataSetNull(resultCol, i);
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break;
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}
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char* colData = udfColDataGetData(block->udfCols[j], i);
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result &= *(int32_t*)colData;
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}
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if (j == block->numOfCols) {
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udfColDataSet(resultCol, i, (char*)&result, false);
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}
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}
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resultData->numOfRows = block->numOfRows;
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return TSDB_CODE_SUCCESS;
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}
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