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[GitHub] [hive] belugabehr opened a new pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

belugabehr opened a new pull request #2002:
URL: https://github.com/apache/hive/pull/2002


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[GitHub] [hive] pgaref commented on a change in pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

Posted by GitBox <gi...@apache.org>.
pgaref commented on a change in pull request #2002:
URL: https://github.com/apache/hive/pull/2002#discussion_r637943868



##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/vector/expressions/TruncDateFromTimestamp.java
##########
@@ -147,18 +148,29 @@ protected void truncDate(ColumnVector inV, BytesColumnVector outV, int i) {
   }
 
   protected void processDate(BytesColumnVector outV, int i, Date date) {
-    if ("MONTH".equals(fmt) || "MON".equals(fmt) || "MM".equals(fmt)) {
+    switch (fmt) {
+    case "YEAR":
+    case "YYYY":
+    case "YY":
+      date.setMonth(1);

Review comment:
       Hey @belugabehr  -- it was actually the fall through that confused me, I see what you are doing now
   In the original code it was part of an else if statement taking care of both.
   




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[GitHub] [hive] pgaref commented on a change in pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

Posted by GitBox <gi...@apache.org>.
pgaref commented on a change in pull request #2002:
URL: https://github.com/apache/hive/pull/2002#discussion_r637813089



##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/vector/expressions/TruncDateFromTimestamp.java
##########
@@ -147,18 +148,29 @@ protected void truncDate(ColumnVector inV, BytesColumnVector outV, int i) {
   }
 
   protected void processDate(BytesColumnVector outV, int i, Date date) {
-    if ("MONTH".equals(fmt) || "MON".equals(fmt) || "MM".equals(fmt)) {
+    switch (fmt) {
+    case "YEAR":
+    case "YYYY":
+    case "YY":
+      date.setMonth(1);

Review comment:
       date.setMonth(1) might be missing here?




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[GitHub] [hive] pgaref commented on a change in pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

Posted by GitBox <gi...@apache.org>.
pgaref commented on a change in pull request #2002:
URL: https://github.com/apache/hive/pull/2002#discussion_r637943868



##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/vector/expressions/TruncDateFromTimestamp.java
##########
@@ -147,18 +148,29 @@ protected void truncDate(ColumnVector inV, BytesColumnVector outV, int i) {
   }
 
   protected void processDate(BytesColumnVector outV, int i, Date date) {
-    if ("MONTH".equals(fmt) || "MON".equals(fmt) || "MM".equals(fmt)) {
+    switch (fmt) {
+    case "YEAR":
+    case "YYYY":
+    case "YY":
+      date.setMonth(1);

Review comment:
       Hey @belugabehr  -- it was actually the fall through that confused me, I see what you are doing now
   In the original call it was part of an else if statement taking care of both.
   




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[GitHub] [hive] belugabehr commented on pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

Posted by GitBox <gi...@apache.org>.
belugabehr commented on pull request #2002:
URL: https://github.com/apache/hive/pull/2002#issuecomment-784617451


   @miklosgergely Minor improvement if you have any PR review cycles.


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[GitHub] [hive] belugabehr commented on pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

Posted by GitBox <gi...@apache.org>.
belugabehr commented on pull request #2002:
URL: https://github.com/apache/hive/pull/2002#issuecomment-846606241


   @miklosgergely  :)


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[GitHub] [hive] belugabehr merged pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

Posted by GitBox <gi...@apache.org>.
belugabehr merged pull request #2002:
URL: https://github.com/apache/hive/pull/2002


   


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[GitHub] [hive] pgaref commented on a change in pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

Posted by GitBox <gi...@apache.org>.
pgaref commented on a change in pull request #2002:
URL: https://github.com/apache/hive/pull/2002#discussion_r637943868



##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/vector/expressions/TruncDateFromTimestamp.java
##########
@@ -147,18 +148,29 @@ protected void truncDate(ColumnVector inV, BytesColumnVector outV, int i) {
   }
 
   protected void processDate(BytesColumnVector outV, int i, Date date) {
-    if ("MONTH".equals(fmt) || "MON".equals(fmt) || "MM".equals(fmt)) {
+    switch (fmt) {
+    case "YEAR":
+    case "YYYY":
+    case "YY":
+      date.setMonth(1);

Review comment:
       Hey @belugabehr  -- it was actually the fall through that confused me, I see what you are doing now
   In the [original code it was part of an else if statement taking care of both](https://github.com/apache/hive/pull/2002/files#diff-9a5478214c2ce29fdb4ea633ae8c9adc6a163b44fc987458686fc82cd02d3e22L160).
   




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[GitHub] [hive] belugabehr commented on pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

Posted by GitBox <gi...@apache.org>.
belugabehr commented on pull request #2002:
URL: https://github.com/apache/hive/pull/2002#issuecomment-846656268


   @pgaref If you are available for a quick review :)


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[GitHub] [hive] belugabehr commented on a change in pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

Posted by GitBox <gi...@apache.org>.
belugabehr commented on a change in pull request #2002:
URL: https://github.com/apache/hive/pull/2002#discussion_r637940606



##########
File path: ql/src/java/org/apache/hadoop/hive/ql/exec/vector/expressions/TruncDateFromTimestamp.java
##########
@@ -147,18 +148,29 @@ protected void truncDate(ColumnVector inV, BytesColumnVector outV, int i) {
   }
 
   protected void processDate(BytesColumnVector outV, int i, Date date) {
-    if ("MONTH".equals(fmt) || "MON".equals(fmt) || "MM".equals(fmt)) {
+    switch (fmt) {
+    case "YEAR":
+    case "YYYY":
+    case "YY":
+      date.setMonth(1);

Review comment:
       @pgaref Thanks so much for taking a look.  I'm not sure however what your comment means.
   
   The year stuff get `Month=1` and `dayOfMonth=1`.  The Month stuff gets only `dayOfMonth=1`.
   
   This switch statement "falls through" to cover both outcomes.




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[GitHub] [hive] belugabehr closed pull request #2002: HIVE-24810: Use JDK 8 String Switch in TruncDateFromTimestamp

Posted by GitBox <gi...@apache.org>.
belugabehr closed pull request #2002:
URL: https://github.com/apache/hive/pull/2002


   


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