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merge to 87fd4ebd9977afb1e1193429dd75c7c82caab204 (#202)

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1. ix bugs in query layer.
2. remove some redundant code in BE
3. support specify multi helper node when starting FE
4. add proc 'cluster_load_statistic' to show load balance situation of Palo
This commit is contained in:
morningman
2018-06-08 08:42:23 +08:00
committed by GitHub
parent c4be57150b
commit 9f7b1ea6d4
32 changed files with 855 additions and 640 deletions
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11
be/src/exec/csv_scan_node.cpp
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@ -25,6 +25,7 @@
#include <thrift/protocol/TDebugProtocol.h>
#include "exec/text_converter.hpp"
#include "exprs/hll_hash_function.h"
#include "gen_cpp/PlanNodes_types.h"
#include "runtime/runtime_state.h"
#include "runtime/row_batch.h"
@ -652,19 +653,17 @@ void CsvScanNode::hll_hash(const char* src, int len, std::string* result) {
std::string str(src, len);
if (str != "\\N") {
uint64_t hash = HashUtil::murmur_hash64A(src, len, HashUtil::MURMUR_SEED);
char buf[11];
memset(buf, 0, 11);
char buf[HllHashFunctions::HLL_INIT_EXPLICT_SET_SIZE];
// expliclit set
buf[0] = HLL_DATA_EXPLICIT;
buf[1] = 1;
*((uint64_t*)(buf + 2)) = hash;
*result = std::string(buf, 11);
*result = std::string(buf, sizeof(buf));
} else {
char buf[2];
memset(buf, 0, 2);
char buf[HllHashFunctions::HLL_EMPTY_SET_SIZE];
// empty set
buf[0] = HLL_DATA_EMPTY;
*result = std::string(buf, 2);
*result = std::string(buf, sizeof(buf));
}
}