Attila Jeges has uploaded a new patch set (#4). ( http://gerrit.cloudera.org:8080/13363 )
Change subject: IMPALA-7369: part 1: Implement TRUNC, DATE_TRUNC, EXTRACT, DATE_PART functions for DATE ...................................................................... IMPALA-7369: part 1: Implement TRUNC, DATE_TRUNC, EXTRACT, DATE_PART functions for DATE These functions are somewhat similar in that each of them takes a DATE argument and a time unit to work with. They work identically to the corresponding TIMESTAMP functions. The only difference is that the DATE functions don't accept time-of-day units. TRUNC(DATE d, STRING unit) Truncates a DATE value to the specified time unit. The 'unit' argument is case insensitive. This argument string can be one of: SYYYY, YYYY, YEAR, SYEAR, YYY, YY, Y: Year. Q: Quarter. MONTH, MON, MM, RM: Month. WW: Same day of the week as the first day of the year. W: Same day of the week as the first day of the month. DDD, DD, J: Day. DAY, DY, D: Starting day (Monday) of the week. The impelementation mirrors Impala's TRUNC(TIMESTAMP ts, STRING unit) function. Hive and Oracle SQL have a similar function too. Reference: http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions201.htm . DATE_TRUNC(STRING unit, DATE d) Truncates a DATE value to the specified precision. The 'unit' argument is case insensitive. This argument string can be one of: DAY, WEEK, MONTH, YEAR, DECADE, CENTURY, MILLENNIUM. The implementation mirrors Impala's DATE_TRUNC(STRING unit, TIMESTAMP ts) function. Vertica has a similar function too. Reference: https://my.vertica.com/docs/8.1.x/HTML/index.htm#Authoring/ SQLReferenceManual/Functions/Date-Time/DATE_TRUNC.htm . EXTRACT(DATE d, STRING unit), EXTRACT(unit FROM DATE d) Returns one of the numeric date fields from a DATE value. The 'unit' string can be one of YEAR, QUARTER, MONTH, DAY. This argument value is case-insensitive. The implementation mirrors that Impala's EXTRACT(TIMESTAMP ts, STRING unit). Hive and Oracle SQL have a similar function too. Reference: http://docs.oracle.com/cd/B19306_01/server.102/b14200/functions050.htm . DATE_PART(STRING unit, DATE date) Similar to EXTRACT(), with the argument order reversed. Supports the same date units as EXTRACT(). The implementation mirrors Impala's DATE_PART(STRING unit, TIMESTAMP ts) function. Change-Id: I843358a45eb5faa2c134994600546fc1d0a797c8 --- M be/src/benchmarks/CMakeLists.txt A be/src/benchmarks/date-benchmark.cc M be/src/exprs/expr-test.cc M be/src/exprs/udf-builtins-ir.cc M be/src/exprs/udf-builtins.cc M be/src/exprs/udf-builtins.h M be/src/runtime/date-test.cc M be/src/runtime/date-value.cc M be/src/runtime/date-value.h M common/function-registry/impala_functions.py M fe/src/main/java/org/apache/impala/analysis/ExtractFromExpr.java M fe/src/test/java/org/apache/impala/analysis/AnalyzeExprsTest.java 12 files changed, 1,331 insertions(+), 302 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/63/13363/4 -- To view, visit http://gerrit.cloudera.org:8080/13363 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: I843358a45eb5faa2c134994600546fc1d0a797c8 Gerrit-Change-Number: 13363 Gerrit-PatchSet: 4 Gerrit-Owner: Attila Jeges <atti...@cloudera.com> Gerrit-Reviewer: Attila Jeges <atti...@cloudera.com> Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Zoltan Borok-Nagy <borokna...@cloudera.com>
