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spark-instrumented-optimizer/sql/core/benchmarks/DateTimeBenchmark-jdk11-results.txt
Max Gekk bef5828e12 [SPARK-31630][SQL] Fix perf regression by skipping timestamps rebasing after some threshold 
### What changes were proposed in this pull request?
Skip timestamps rebasing after a global threshold when there is no difference between Julian and Gregorian calendars. This allows to avoid checking hash maps of switch points, and fixes perf regressions in `toJavaTimestamp()` and `fromJavaTimestamp()`.

### Why are the changes needed?
The changes fix perf regressions of conversions to/from external type `java.sql.Timestamp`.

Before (see the PR's results https://github.com/apache/spark/pull/28440):
```
================================================================================================
Conversion from/to external types
================================================================================================

OpenJDK 64-Bit Server VM 1.8.0_252-8u252-b09-1~18.04-b09 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2  2.50GHz
To/from Java's date-time:                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
From java.sql.Timestamp                             376            388          10         13.3          75.2       1.1X
Collect java.sql.Timestamp                         1878           1937          64          2.7         375.6       0.2X
```

After:
```
================================================================================================
Conversion from/to external types
================================================================================================

OpenJDK 64-Bit Server VM 1.8.0_252-8u252-b09-1~18.04-b09 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2  2.50GHz
To/from Java's date-time:                 Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------------------------------
From java.sql.Timestamp                             249            264          24         20.1          49.8       1.7X
Collect java.sql.Timestamp                         1503           1523          24          3.3         300.5       0.3X
```

Perf improvements in average of:

1. From java.sql.Timestamp is ~ 34%
2. To java.sql.Timestamps is ~16%

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
By existing test suites `DateTimeUtilsSuite` and `RebaseDateTimeSuite`.

Closes #28441 from MaxGekk/opt-rebase-common-threshold.

Authored-by: Max Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-05-05 14:11:53 +00:00

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================================================================================================
datetime +/- interval
================================================================================================
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datetime +/- interval: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
date + interval(m) 1496 1569 104 6.7 149.6 1.0X
date + interval(m, d) 1514 1526 17 6.6 151.4 1.0X
date + interval(m, d, ms) 6231 6253 30 1.6 623.1 0.2X
date - interval(m) 1481 1487 9 6.8 148.1 1.0X
date - interval(m, d) 1550 1552 2 6.5 155.0 1.0X
date - interval(m, d, ms) 6269 6272 4 1.6 626.9 0.2X
timestamp + interval(m) 3017 3056 54 3.3 301.7 0.5X
timestamp + interval(m, d) 3146 3148 3 3.2 314.6 0.5X
timestamp + interval(m, d, ms) 3446 3460 20 2.9 344.6 0.4X
timestamp - interval(m) 3045 3059 19 3.3 304.5 0.5X
timestamp - interval(m, d) 3147 3164 25 3.2 314.7 0.5X
timestamp - interval(m, d, ms) 3425 3442 25 2.9 342.5 0.4X
================================================================================================
Extract components
================================================================================================
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cast to timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
cast to timestamp wholestage off 332 336 5 30.1 33.2 1.0X
cast to timestamp wholestage on 333 344 10 30.0 33.3 1.0X
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year of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
year of timestamp wholestage off 1246 1257 16 8.0 124.6 1.0X
year of timestamp wholestage on 1209 1218 12 8.3 120.9 1.0X
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quarter of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
quarter of timestamp wholestage off 1608 1616 11 6.2 160.8 1.0X
quarter of timestamp wholestage on 1540 1552 10 6.5 154.0 1.0X
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month of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
month of timestamp wholestage off 1242 1246 6 8.1 124.2 1.0X
month of timestamp wholestage on 1202 1212 11 8.3 120.2 1.0X
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weekofyear of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
weekofyear of timestamp wholestage off 1879 1885 8 5.3 187.9 1.0X
weekofyear of timestamp wholestage on 1832 1845 10 5.5 183.2 1.0X
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day of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
day of timestamp wholestage off 1236 1239 4 8.1 123.6 1.0X
day of timestamp wholestage on 1206 1219 17 8.3 120.6 1.0X
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dayofyear of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
dayofyear of timestamp wholestage off 1308 1309 1 7.6 130.8 1.0X
dayofyear of timestamp wholestage on 1239 1255 15 8.1 123.9 1.1X
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dayofmonth of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
dayofmonth of timestamp wholestage off 1259 1263 5 7.9 125.9 1.0X
dayofmonth of timestamp wholestage on 1201 1205 5 8.3 120.1 1.0X
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dayofweek of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
dayofweek of timestamp wholestage off 1406 1410 6 7.1 140.6 1.0X
dayofweek of timestamp wholestage on 1387 1402 15 7.2 138.7 1.0X
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weekday of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
weekday of timestamp wholestage off 1355 1367 18 7.4 135.5 1.0X
weekday of timestamp wholestage on 1311 1321 10 7.6 131.1 1.0X
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hour of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
hour of timestamp wholestage off 996 997 2 10.0 99.6 1.0X
hour of timestamp wholestage on 930 936 6 10.7 93.0 1.1X
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minute of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
minute of timestamp wholestage off 1005 1012 10 9.9 100.5 1.0X
minute of timestamp wholestage on 949 952 3 10.5 94.9 1.1X
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second of timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
second of timestamp wholestage off 1013 1014 1 9.9 101.3 1.0X
second of timestamp wholestage on 933 934 2 10.7 93.3 1.1X
================================================================================================
Current date and time
================================================================================================
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current_date: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
current_date wholestage off 291 293 2 34.3 29.1 1.0X
current_date wholestage on 280 284 3 35.7 28.0 1.0X
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current_timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
current_timestamp wholestage off 311 324 18 32.1 31.1 1.0X
current_timestamp wholestage on 275 364 85 36.3 27.5 1.1X
================================================================================================
Date arithmetic
================================================================================================
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cast to date: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
cast to date wholestage off 1077 1079 3 9.3 107.7 1.0X
cast to date wholestage on 1018 1030 14 9.8 101.8 1.1X
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last_day: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
last_day wholestage off 1257 1260 4 8.0 125.7 1.0X
last_day wholestage on 1218 1227 14 8.2 121.8 1.0X
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next_day: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
next_day wholestage off 1140 1141 1 8.8 114.0 1.0X
next_day wholestage on 1067 1076 11 9.4 106.7 1.1X
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date_add: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
date_add wholestage off 1062 1064 3 9.4 106.2 1.0X
date_add wholestage on 1046 1055 11 9.6 104.6 1.0X
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date_sub: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
date_sub wholestage off 1082 1083 1 9.2 108.2 1.0X
date_sub wholestage on 1047 1056 12 9.6 104.7 1.0X
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add_months: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
add_months wholestage off 1430 1431 1 7.0 143.0 1.0X
add_months wholestage on 1441 1446 8 6.9 144.1 1.0X
================================================================================================
Formatting dates
================================================================================================
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format date: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
format date wholestage off 5442 5549 150 1.8 544.2 1.0X
format date wholestage on 5529 5655 236 1.8 552.9 1.0X
================================================================================================
Formatting timestamps
================================================================================================
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from_unixtime: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
from_unixtime wholestage off 7416 7440 34 1.3 741.6 1.0X
from_unixtime wholestage on 7372 7391 17 1.4 737.2 1.0X
================================================================================================
Convert timestamps
================================================================================================
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from_utc_timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
from_utc_timestamp wholestage off 1316 1320 6 7.6 131.6 1.0X
from_utc_timestamp wholestage on 1268 1272 4 7.9 126.8 1.0X
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to_utc_timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
to_utc_timestamp wholestage off 1653 1657 6 6.0 165.3 1.0X
to_utc_timestamp wholestage on 1594 1599 4 6.3 159.4 1.0X
================================================================================================
Intervals
================================================================================================
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cast interval: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
cast interval wholestage off 341 343 3 29.4 34.1 1.0X
cast interval wholestage on 279 282 1 35.8 27.9 1.2X
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datediff: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
datediff wholestage off 1862 1865 4 5.4 186.2 1.0X
datediff wholestage on 1769 1783 15 5.7 176.9 1.1X
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months_between: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
months_between wholestage off 5594 5599 7 1.8 559.4 1.0X
months_between wholestage on 5498 5508 11 1.8 549.8 1.0X
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window: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
window wholestage off 2044 2127 117 0.5 2044.3 1.0X
window wholestage on 48057 48109 54 0.0 48056.9 0.0X
================================================================================================
Truncation
================================================================================================
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date_trunc YEAR: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
date_trunc YEAR wholestage off 2540 2542 3 3.9 254.0 1.0X
date_trunc YEAR wholestage on 2486 2507 29 4.0 248.6 1.0X
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date_trunc YYYY: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
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date_trunc YYYY wholestage off 2542 2543 3 3.9 254.2 1.0X
date_trunc YYYY wholestage on 2491 2498 9 4.0 249.1 1.0X
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date_trunc YY: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
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date_trunc YY wholestage off 2545 2569 35 3.9 254.5 1.0X
date_trunc YY wholestage on 2487 2493 4 4.0 248.7 1.0X
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date_trunc MON: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
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date_trunc MON wholestage off 2590 2590 1 3.9 259.0 1.0X
date_trunc MON wholestage on 2506 2520 12 4.0 250.6 1.0X
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date_trunc MONTH: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
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date_trunc MONTH wholestage off 2595 2603 11 3.9 259.5 1.0X
date_trunc MONTH wholestage on 2505 2516 12 4.0 250.5 1.0X
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date_trunc MM: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
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date_trunc MM wholestage off 2605 2612 10 3.8 260.5 1.0X
date_trunc MM wholestage on 2501 2515 11 4.0 250.1 1.0X
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date_trunc DAY: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
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date_trunc DAY wholestage off 2225 2229 5 4.5 222.5 1.0X
date_trunc DAY wholestage on 2184 2196 9 4.6 218.4 1.0X
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date_trunc DD: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
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date_trunc DD wholestage off 2232 2236 6 4.5 223.2 1.0X
date_trunc DD wholestage on 2183 2190 6 4.6 218.3 1.0X
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date_trunc HOUR: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
date_trunc HOUR wholestage off 2194 2199 7 4.6 219.4 1.0X
date_trunc HOUR wholestage on 2160 2166 5 4.6 216.0 1.0X
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date_trunc MINUTE: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
date_trunc MINUTE wholestage off 390 396 9 25.7 39.0 1.0X
date_trunc MINUTE wholestage on 331 337 7 30.2 33.1 1.2X
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date_trunc SECOND: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
date_trunc SECOND wholestage off 375 381 8 26.7 37.5 1.0X
date_trunc SECOND wholestage on 332 346 14 30.1 33.2 1.1X
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date_trunc WEEK: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
date_trunc WEEK wholestage off 2439 2443 6 4.1 243.9 1.0X
date_trunc WEEK wholestage on 2390 2409 32 4.2 239.0 1.0X
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date_trunc QUARTER: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
date_trunc QUARTER wholestage off 3290 3292 4 3.0 329.0 1.0X
date_trunc QUARTER wholestage on 3214 3218 3 3.1 321.4 1.0X
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trunc year: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
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trunc year wholestage off 308 310 3 32.5 30.8 1.0X
trunc year wholestage on 289 293 6 34.7 28.9 1.1X
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trunc yyyy: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
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trunc yyyy wholestage off 309 311 3 32.4 30.9 1.0X
trunc yyyy wholestage on 289 294 7 34.6 28.9 1.1X
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
trunc yy: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
trunc yy wholestage off 311 311 0 32.2 31.1 1.0X
trunc yy wholestage on 288 294 7 34.7 28.8 1.1X
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
trunc mon: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
trunc mon wholestage off 313 313 0 32.0 31.3 1.0X
trunc mon wholestage on 287 290 2 34.8 28.7 1.1X
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
trunc month: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
trunc month wholestage off 310 310 0 32.3 31.0 1.0X
trunc month wholestage on 287 290 2 34.8 28.7 1.1X
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
trunc mm: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
trunc mm wholestage off 311 312 1 32.1 31.1 1.0X
trunc mm wholestage on 287 296 9 34.8 28.7 1.1X
================================================================================================
Parsing
================================================================================================
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
to timestamp str: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
to timestamp str wholestage off 169 170 1 5.9 168.9 1.0X
to timestamp str wholestage on 161 168 11 6.2 161.0 1.0X
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
to_timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
to_timestamp wholestage off 1360 1361 1 0.7 1359.6 1.0X
to_timestamp wholestage on 1362 1366 6 0.7 1362.0 1.0X
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
to_unix_timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
to_unix_timestamp wholestage off 1343 1346 4 0.7 1342.6 1.0X
to_unix_timestamp wholestage on 1356 1359 2 0.7 1356.2 1.0X
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
to date str: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
to date str wholestage off 227 230 4 4.4 227.0 1.0X
to date str wholestage on 299 302 3 3.3 299.0 0.8X
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
to_date: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
to_date wholestage off 3413 3440 38 0.3 3413.0 1.0X
to_date wholestage on 3392 3402 12 0.3 3392.3 1.0X
================================================================================================
Conversion from/to external types
================================================================================================
OpenJDK 64-Bit Server VM 11.0.7+10-post-Ubuntu-2ubuntu218.04 on Linux 4.15.0-1063-aws
Intel(R) Xeon(R) CPU E5-2670 v2 @ 2.50GHz
To/from Java's date-time: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
From java.sql.Date 410 415 7 12.2 82.0 1.0X
From java.time.LocalDate 332 333 1 15.1 66.4 1.2X
Collect java.sql.Date 1891 2542 829 2.6 378.1 0.2X
Collect java.time.LocalDate 1630 2138 441 3.1 326.0 0.3X
From java.sql.Timestamp 254 259 6 19.7 50.9 1.6X
From java.time.Instant 302 306 4 16.6 60.3 1.4X
Collect longs 1134 1265 117 4.4 226.8 0.4X
Collect java.sql.Timestamp 1441 1458 16 3.5 288.1 0.3X
Collect java.time.Instant 1680 1928 253 3.0 336.0 0.2X
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