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Data obfuscator: development [#CLICKHOUSE-2]

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This commit is contained in:
Alexey Milovidov 2018-06-15 12:21:53 +03:00
parent 3de1efa2c2
commit 47bded3520
1 changed files with 10 additions and 9 deletions
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19
dbms/programs/anonymizer/main.cpp
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@ -344,16 +344,17 @@ public:
for (size_t i = 0; i < size; ++i)
{
UInt32 src_time = src_data[i];
UInt32 src_date = date_lut.toDate(src_time);
UInt32 src_datetime = src_data[i];
UInt32 src_date = date_lut.toDate(src_datetime);
Int32 src_diff = src_time - src_prev_value;
Int32 res_diff = transform(src_diff, seed);
Int32 src_diff = src_datetime - src_prev_value;
Int32 res_diff = transformSigned(src_diff, seed);
UInt32 new_time = res_prev_value + res_diff;
res_data[i] = src_date + new_time % 86400; /// Don't care about tz changes and daylight saving time.
UInt32 new_datetime = res_prev_value + res_diff;
UInt32 new_time = new_datetime - date_lut.toDate(new_datetime);
res_data[i] = src_date + new_time;
src_prev_value = src_time;
src_prev_value = src_datetime;
res_prev_value = res_data[i];
}
@ -482,9 +483,9 @@ public:
while (true)
{
bool inside = pos < end;
const bool inside = pos < end;
CodePoint next_code_point;
CodePoint next_code_point {};
if (inside)
next_code_point = readCodePoint(pos, end);