[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-20 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=624984=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-624984
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 20/Jul/21 09:50
Start Date: 20/Jul/21 09:50
Worklog Time Spent: 10m 
  Work Description: szlta merged pull request #2463:
URL: https://github.com/apache/hive/pull/2463


   


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Issue Time Tracking
---

Worklog Id: (was: 624984)
Time Spent: 2.5h  (was: 2h 20m)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
> Fix For: 4.0.0
>
>  Time Spent: 2.5h
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-19 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=624221=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-624221
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 19/Jul/21 08:21
Start Date: 19/Jul/21 08:21
Worklog Time Spent: 10m 
  Work Description: szlta merged pull request #2463:
URL: https://github.com/apache/hive/pull/2463


   


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Issue Time Tracking
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Worklog Id: (was: 624221)
Time Spent: 2h 20m  (was: 2h 10m)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 2h 20m
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-15 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622945=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622945
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 15/Jul/21 09:50
Start Date: 15/Jul/21 09:50
Worklog Time Spent: 10m 
  Work Description: szlta commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r670311756



##
File path: 
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergMetaHook.java
##
@@ -505,19 +512,83 @@ private void 
handleReplaceColumns(org.apache.hadoop.hive.metastore.api.Table hms
 }
 
 for (FieldSchema updatedCol : schemaDifference.getTypeChanged()) {
-  Type newType = 
HiveSchemaUtil.convert(TypeInfoUtils.getTypeInfoFromTypeString(updatedCol.getType()));
-  if (!(newType instanceof Type.PrimitiveType)) {
-throw new MetaException(String.format("Cannot promote type of column: 
'%s' to a non-primitive type: %s.",
-updatedCol.getName(), newType));
-  }
-  updateSchema.updateColumn(updatedCol.getName(), (Type.PrimitiveType) 
newType, updatedCol.getComment());
+  updateSchema.updateColumn(updatedCol.getName(), 
getPrimitiveTypeOrThrow(updatedCol), updatedCol.getComment());
 }
 
 for (FieldSchema updatedCol : schemaDifference.getCommentChanged()) {
   updateSchema.updateColumnDoc(updatedCol.getName(), 
updatedCol.getComment());
 }
   }
 
+  private void handleChangeColumn(org.apache.hadoop.hive.metastore.api.Table 
hmsTable) throws MetaException {
+List hmsCols = hmsTable.getSd().getCols();
+List icebergCols = 
HiveSchemaUtil.convert(icebergTable.schema());
+// compute schema difference for renames, type/comment changes
+HiveSchemaUtil.SchemaDifference schemaDifference = 
HiveSchemaUtil.getSchemaDiff(hmsCols, icebergCols, true);
+// check column reorder (which could happen even in the absence of any 
rename, type or comment change)
+Map renameMapping = ImmutableMap.of();
+if (!schemaDifference.getMissingFromSecond().isEmpty()) {
+  renameMapping = ImmutableMap.of(
+  schemaDifference.getMissingFromSecond().get(0).getName(),
+  schemaDifference.getMissingFromFirst().get(0).getName());
+}
+Pair> outOfOrder = 
HiveSchemaUtil.getFirstOutOfOrderColumn(hmsCols, icebergCols,
+renameMapping);
+
+if (!schemaDifference.isEmpty() || outOfOrder != null) {
+  updateSchema = icebergTable.updateSchema();
+} else {
+  // we should get here if the user didn't change anything about the column
+  // i.e. no changes to the name, type, comment or order
+  LOG.info("Found no difference between new and old schema for ALTER TABLE 
CHANGE COLUMN for" +
+  " table: {}. There will be no Iceberg commit.", 
hmsTable.getTableName());
+  return;
+}
+
+// case 1: column name has been renamed
+if (!schemaDifference.getMissingFromSecond().isEmpty()) {
+  FieldSchema updatedField = 
schemaDifference.getMissingFromSecond().get(0);
+  FieldSchema oldField = schemaDifference.getMissingFromFirst().get(0);
+  updateSchema.renameColumn(oldField.getName(), updatedField.getName());
+
+  // check if type/comment changed too
+  if (!Objects.equals(oldField.getType(), updatedField.getType())) {
+updateSchema.updateColumn(oldField.getName(), 
getPrimitiveTypeOrThrow(updatedField), updatedField.getComment());
+  } else if (!Objects.equals(oldField.getComment(), 
updatedField.getComment())) {
+updateSchema.updateColumnDoc(oldField.getName(), 
updatedField.getComment());
+  }
+
+// case 2: only column type and/or comment changed
+} else if (!schemaDifference.getTypeChanged().isEmpty()) {
+  FieldSchema updatedField = schemaDifference.getTypeChanged().get(0);
+  updateSchema.updateColumn(updatedField.getName(), 
getPrimitiveTypeOrThrow(updatedField),
+  updatedField.getComment());
+
+// case 3: only comment changed
+} else if (!schemaDifference.getCommentChanged().isEmpty()) {
+  FieldSchema updatedField = schemaDifference.getCommentChanged().get(0);
+  updateSchema.updateColumnDoc(updatedField.getName(), 
updatedField.getComment());
+}

Review comment:
   Thanks!




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Issue Time Tracking
---

Worklog Id: (was: 622945)
Time Spent: 2h 10m  (was: 2h)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: 

[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622543=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622543
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 15:12
Start Date: 14/Jul/21 15:12
Worklog Time Spent: 10m 
  Work Description: marton-bod commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669708908



##
File path: 
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergMetaHook.java
##
@@ -505,19 +512,83 @@ private void 
handleReplaceColumns(org.apache.hadoop.hive.metastore.api.Table hms
 }
 
 for (FieldSchema updatedCol : schemaDifference.getTypeChanged()) {
-  Type newType = 
HiveSchemaUtil.convert(TypeInfoUtils.getTypeInfoFromTypeString(updatedCol.getType()));
-  if (!(newType instanceof Type.PrimitiveType)) {
-throw new MetaException(String.format("Cannot promote type of column: 
'%s' to a non-primitive type: %s.",
-updatedCol.getName(), newType));
-  }
-  updateSchema.updateColumn(updatedCol.getName(), (Type.PrimitiveType) 
newType, updatedCol.getComment());
+  updateSchema.updateColumn(updatedCol.getName(), 
getPrimitiveTypeOrThrow(updatedCol), updatedCol.getComment());
 }
 
 for (FieldSchema updatedCol : schemaDifference.getCommentChanged()) {
   updateSchema.updateColumnDoc(updatedCol.getName(), 
updatedCol.getComment());
 }
   }
 
+  private void handleChangeColumn(org.apache.hadoop.hive.metastore.api.Table 
hmsTable) throws MetaException {
+List hmsCols = hmsTable.getSd().getCols();
+List icebergCols = 
HiveSchemaUtil.convert(icebergTable.schema());
+// compute schema difference for renames, type/comment changes
+HiveSchemaUtil.SchemaDifference schemaDifference = 
HiveSchemaUtil.getSchemaDiff(hmsCols, icebergCols, true);
+// check column reorder (which could happen even in the absence of any 
rename, type or comment change)
+Map renameMapping = ImmutableMap.of();
+if (!schemaDifference.getMissingFromSecond().isEmpty()) {
+  renameMapping = ImmutableMap.of(
+  schemaDifference.getMissingFromSecond().get(0).getName(),
+  schemaDifference.getMissingFromFirst().get(0).getName());
+}
+Pair> outOfOrder = 
HiveSchemaUtil.getFirstOutOfOrderColumn(hmsCols, icebergCols,
+renameMapping);
+
+if (!schemaDifference.isEmpty() || outOfOrder != null) {
+  updateSchema = icebergTable.updateSchema();
+} else {
+  // we should get here if the user didn't change anything about the column
+  // i.e. no changes to the name, type, comment or order
+  LOG.info("Found no difference between new and old schema for ALTER TABLE 
CHANGE COLUMN for" +
+  " table: {}. There will be no Iceberg commit.", 
hmsTable.getTableName());
+  return;
+}
+
+// case 1: column name has been renamed
+if (!schemaDifference.getMissingFromSecond().isEmpty()) {
+  FieldSchema updatedField = 
schemaDifference.getMissingFromSecond().get(0);
+  FieldSchema oldField = schemaDifference.getMissingFromFirst().get(0);
+  updateSchema.renameColumn(oldField.getName(), updatedField.getName());
+
+  // check if type/comment changed too
+  if (!Objects.equals(oldField.getType(), updatedField.getType())) {
+updateSchema.updateColumn(oldField.getName(), 
getPrimitiveTypeOrThrow(updatedField), updatedField.getComment());
+  } else if (!Objects.equals(oldField.getComment(), 
updatedField.getComment())) {
+updateSchema.updateColumnDoc(oldField.getName(), 
updatedField.getComment());
+  }
+
+// case 2: only column type and/or comment changed
+} else if (!schemaDifference.getTypeChanged().isEmpty()) {
+  FieldSchema updatedField = schemaDifference.getTypeChanged().get(0);
+  updateSchema.updateColumn(updatedField.getName(), 
getPrimitiveTypeOrThrow(updatedField),
+  updatedField.getComment());
+
+// case 3: only comment changed
+} else if (!schemaDifference.getCommentChanged().isEmpty()) {
+  FieldSchema updatedField = schemaDifference.getCommentChanged().get(0);
+  updateSchema.updateColumnDoc(updatedField.getName(), 
updatedField.getComment());
+}

Review comment:
   Yes, it should. In that case, we'd have an entry in both the 
`commentChanged` and the `typeChanged` lists in the `schemaDifference`. There's 
a unit test covering this called `testAlterTableChangeColumnTypeAndComment`




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Issue Time Tracking

[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622542=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622542
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 15:11
Start Date: 14/Jul/21 15:11
Worklog Time Spent: 10m 
  Work Description: marton-bod commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669708042



##
File path: 
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergStorageHandler.java
##
@@ -86,6 +88,10 @@
   private static final Splitter TABLE_NAME_SPLITTER = Splitter.on("..");
   private static final String TABLE_NAME_SEPARATOR = "..";
 
+  private static final List ALLOWED_ALTER_OPS = 
ImmutableList.of(
+  AlterTableType.ADDPROPS, AlterTableType.DROPPROPS, 
AlterTableType.ADDCOLS,
+  AlterTableType.REPLACE_COLUMNS, AlterTableType.RENAME_COLUMN, 
AlterTableType.SETPARTITIONSPEC);
+

Review comment:
   Yes, good idea!




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Issue Time Tracking
---

Worklog Id: (was: 622542)
Time Spent: 1h 50m  (was: 1h 40m)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 1h 50m
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622541=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622541
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 15:08
Start Date: 14/Jul/21 15:08
Worklog Time Spent: 10m 
  Work Description: szlta commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669696347



##
File path: 
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergStorageHandler.java
##
@@ -86,6 +88,10 @@
   private static final Splitter TABLE_NAME_SPLITTER = Splitter.on("..");
   private static final String TABLE_NAME_SEPARATOR = "..";
 
+  private static final List ALLOWED_ALTER_OPS = 
ImmutableList.of(
+  AlterTableType.ADDPROPS, AlterTableType.DROPPROPS, 
AlterTableType.ADDCOLS,
+  AlterTableType.REPLACE_COLUMNS, AlterTableType.RENAME_COLUMN, 
AlterTableType.SETPARTITIONSPEC);
+

Review comment:
   Shouldn't we rely on EnumSet SUPPORTED_ALTER_OPS found 
in meta hook class here too?

##
File path: 
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergMetaHook.java
##
@@ -505,19 +512,83 @@ private void 
handleReplaceColumns(org.apache.hadoop.hive.metastore.api.Table hms
 }
 
 for (FieldSchema updatedCol : schemaDifference.getTypeChanged()) {
-  Type newType = 
HiveSchemaUtil.convert(TypeInfoUtils.getTypeInfoFromTypeString(updatedCol.getType()));
-  if (!(newType instanceof Type.PrimitiveType)) {
-throw new MetaException(String.format("Cannot promote type of column: 
'%s' to a non-primitive type: %s.",
-updatedCol.getName(), newType));
-  }
-  updateSchema.updateColumn(updatedCol.getName(), (Type.PrimitiveType) 
newType, updatedCol.getComment());
+  updateSchema.updateColumn(updatedCol.getName(), 
getPrimitiveTypeOrThrow(updatedCol), updatedCol.getComment());
 }
 
 for (FieldSchema updatedCol : schemaDifference.getCommentChanged()) {
   updateSchema.updateColumnDoc(updatedCol.getName(), 
updatedCol.getComment());
 }
   }
 
+  private void handleChangeColumn(org.apache.hadoop.hive.metastore.api.Table 
hmsTable) throws MetaException {
+List hmsCols = hmsTable.getSd().getCols();
+List icebergCols = 
HiveSchemaUtil.convert(icebergTable.schema());
+// compute schema difference for renames, type/comment changes
+HiveSchemaUtil.SchemaDifference schemaDifference = 
HiveSchemaUtil.getSchemaDiff(hmsCols, icebergCols, true);
+// check column reorder (which could happen even in the absence of any 
rename, type or comment change)
+Map renameMapping = ImmutableMap.of();
+if (!schemaDifference.getMissingFromSecond().isEmpty()) {
+  renameMapping = ImmutableMap.of(
+  schemaDifference.getMissingFromSecond().get(0).getName(),
+  schemaDifference.getMissingFromFirst().get(0).getName());
+}
+Pair> outOfOrder = 
HiveSchemaUtil.getFirstOutOfOrderColumn(hmsCols, icebergCols,
+renameMapping);
+
+if (!schemaDifference.isEmpty() || outOfOrder != null) {
+  updateSchema = icebergTable.updateSchema();
+} else {
+  // we should get here if the user didn't change anything about the column
+  // i.e. no changes to the name, type, comment or order
+  LOG.info("Found no difference between new and old schema for ALTER TABLE 
CHANGE COLUMN for" +
+  " table: {}. There will be no Iceberg commit.", 
hmsTable.getTableName());
+  return;
+}
+
+// case 1: column name has been renamed
+if (!schemaDifference.getMissingFromSecond().isEmpty()) {
+  FieldSchema updatedField = 
schemaDifference.getMissingFromSecond().get(0);
+  FieldSchema oldField = schemaDifference.getMissingFromFirst().get(0);
+  updateSchema.renameColumn(oldField.getName(), updatedField.getName());
+
+  // check if type/comment changed too
+  if (!Objects.equals(oldField.getType(), updatedField.getType())) {
+updateSchema.updateColumn(oldField.getName(), 
getPrimitiveTypeOrThrow(updatedField), updatedField.getComment());
+  } else if (!Objects.equals(oldField.getComment(), 
updatedField.getComment())) {
+updateSchema.updateColumnDoc(oldField.getName(), 
updatedField.getComment());
+  }
+
+// case 2: only column type and/or comment changed
+} else if (!schemaDifference.getTypeChanged().isEmpty()) {
+  FieldSchema updatedField = schemaDifference.getTypeChanged().get(0);
+  updateSchema.updateColumn(updatedField.getName(), 
getPrimitiveTypeOrThrow(updatedField),
+  updatedField.getComment());
+
+// case 3: only comment changed
+} else if (!schemaDifference.getCommentChanged().isEmpty()) {
+  FieldSchema updatedField = schemaDifference.getCommentChanged().get(0);
+  

[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622502=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622502
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 13:28
Start Date: 14/Jul/21 13:28
Worklog Time Spent: 10m 
  Work Description: marton-bod commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669615214



##
File path: 
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergMetaHook.java
##
@@ -505,19 +512,82 @@ private void 
handleReplaceColumns(org.apache.hadoop.hive.metastore.api.Table hms
 }
 
 for (FieldSchema updatedCol : schemaDifference.getTypeChanged()) {
-  Type newType = 
HiveSchemaUtil.convert(TypeInfoUtils.getTypeInfoFromTypeString(updatedCol.getType()));
-  if (!(newType instanceof Type.PrimitiveType)) {
-throw new MetaException(String.format("Cannot promote type of column: 
'%s' to a non-primitive type: %s.",
-updatedCol.getName(), newType));
-  }
-  updateSchema.updateColumn(updatedCol.getName(), (Type.PrimitiveType) 
newType, updatedCol.getComment());
+  updateSchema.updateColumn(updatedCol.getName(), 
getPrimitiveTypeOrThrow(updatedCol), updatedCol.getComment());
 }
 
 for (FieldSchema updatedCol : schemaDifference.getCommentChanged()) {
   updateSchema.updateColumnDoc(updatedCol.getName(), 
updatedCol.getComment());
 }
   }
 
+  private void handleChangeColumn(org.apache.hadoop.hive.metastore.api.Table 
hmsTable) throws MetaException {
+List hmsCols = hmsTable.getSd().getCols();
+List icebergCols = 
HiveSchemaUtil.convert(icebergTable.schema());
+// compute schema difference for renames, type/comment changes
+HiveSchemaUtil.SchemaDifference schemaDifference = 
HiveSchemaUtil.getSchemaDiff(hmsCols, icebergCols, true);
+// check column reorder (which could happen even in the absence of any 
rename, type or comment change)
+Map renameMapping = ImmutableMap.of();
+if (!schemaDifference.getMissingFromSecond().isEmpty()) {
+  renameMapping = ImmutableMap.of(
+  schemaDifference.getMissingFromSecond().get(0).getName(),
+  schemaDifference.getMissingFromFirst().get(0).getName());
+}
+Pair> outOfOrder = 
HiveSchemaUtil.getFirstOutOfOrderColumn(hmsCols, icebergCols,
+renameMapping);
+
+if (!schemaDifference.isEmpty() || outOfOrder != null) {
+  updateSchema = icebergTable.updateSchema();
+} else {
+  // we should get here if the user restated the exactly the existing 
column in the CHANGE COLUMN command

Review comment:
   Updated the comment, let me know if this clarifies it.




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Issue Time Tracking
---

Worklog Id: (was: 622502)
Time Spent: 1.5h  (was: 1h 20m)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 1.5h
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622485=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622485
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 12:48
Start Date: 14/Jul/21 12:48
Worklog Time Spent: 10m 
  Work Description: marton-bod commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669567104



##
File path: hbase-handler/src/test/results/negative/hbase_ddl.q.out
##
@@ -26,4 +26,4 @@ key   int It is a column 
key
 value  string  It is the column string value
 
  A masked pattern was here 
-FAILED: SemanticException [Error 10134]: ALTER TABLE can only be used for 
[ADDPROPS, DROPPROPS, ADDCOLS, REPLACE_COLUMNS, SETPARTITIONSPEC] to a 
non-native table  hbase_table_1
+FAILED: SemanticException [Error 10134]: ALTER TABLE can only be used for 
[ADDPROPS, DROPPROPS, ADDCOLS] to a non-native table  hbase_table_1

Review comment:
   Hbase would get this SemanticException:
   ```
   ALTER TABLE can only be used for [ADDPROPS, DROPPROPS, ADDCOLS] to a 
non-native table  hbase_table_1
   ```
   HBase (and all other storage handlers except for Iceberg at the moment), 
should get this exception for all alter commands other than SET/UNSET 
TBLPROPERTIES and ADD COLUMNS.




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Issue Time Tracking
---

Worklog Id: (was: 622485)
Time Spent: 1h 20m  (was: 1h 10m)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622482=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622482
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 12:30
Start Date: 14/Jul/21 12:30
Worklog Time Spent: 10m 
  Work Description: marton-bod commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669569756



##
File path: hbase-handler/src/test/results/negative/hbase_ddl.q.out
##
@@ -26,4 +26,4 @@ key   int It is a column 
key
 value  string  It is the column string value
 
  A masked pattern was here 
-FAILED: SemanticException [Error 10134]: ALTER TABLE can only be used for 
[ADDPROPS, DROPPROPS, ADDCOLS, REPLACE_COLUMNS, SETPARTITIONSPEC] to a 
non-native table  hbase_table_1
+FAILED: SemanticException [Error 10134]: ALTER TABLE can only be used for 
[ADDPROPS, DROPPROPS, ADDCOLS] to a non-native table  hbase_table_1

Review comment:
   Previously, when we were working on adding new alter commands for 
Iceberg, we kept adding these new operation types (rename columns, etc.) to the 
allowed list. However, there was only one global allowed list for all storage 
handler types. Now, the allowed list has been moved into the storage handler, 
so I've reverted the global list to its original form (before all our Iceberg 
changes started flowing in)




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Issue Time Tracking
---

Worklog Id: (was: 622482)
Time Spent: 1h 10m  (was: 1h)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622479=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622479
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 12:26
Start Date: 14/Jul/21 12:26
Worklog Time Spent: 10m 
  Work Description: marton-bod commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669567104



##
File path: hbase-handler/src/test/results/negative/hbase_ddl.q.out
##
@@ -26,4 +26,4 @@ key   int It is a column 
key
 value  string  It is the column string value
 
  A masked pattern was here 
-FAILED: SemanticException [Error 10134]: ALTER TABLE can only be used for 
[ADDPROPS, DROPPROPS, ADDCOLS, REPLACE_COLUMNS, SETPARTITIONSPEC] to a 
non-native table  hbase_table_1
+FAILED: SemanticException [Error 10134]: ALTER TABLE can only be used for 
[ADDPROPS, DROPPROPS, ADDCOLS] to a non-native table  hbase_table_1

Review comment:
   They get this SemanticException:
   ```
   ALTER TABLE can only be used for [ADDPROPS, DROPPROPS, ADDCOLS] to a 
non-native table  hbase_table_1
   ```
   HBase (and all other storage handlers except for Iceberg at the moment), 
should get this exception for alter commands other than SET/UNSET TBLPROPERTIES 
and ADD COLUMNS.




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Issue Time Tracking
---

Worklog Id: (was: 622479)
Time Spent: 1h  (was: 50m)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 1h
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622453=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622453
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 11:11
Start Date: 14/Jul/21 11:11
Worklog Time Spent: 10m 
  Work Description: pvary commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669514565



##
File path: hbase-handler/src/test/results/negative/hbase_ddl.q.out
##
@@ -26,4 +26,4 @@ key   int It is a column 
key
 value  string  It is the column string value
 
  A masked pattern was here 
-FAILED: SemanticException [Error 10134]: ALTER TABLE can only be used for 
[ADDPROPS, DROPPROPS, ADDCOLS, REPLACE_COLUMNS, SETPARTITIONSPEC] to a 
non-native table  hbase_table_1
+FAILED: SemanticException [Error 10134]: ALTER TABLE can only be used for 
[ADDPROPS, DROPPROPS, ADDCOLS] to a non-native table  hbase_table_1

Review comment:
   What happens with HBase tables if we try replacing columns and setting 
partition spec?




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Issue Time Tracking
---

Worklog Id: (was: 622453)
Time Spent: 50m  (was: 40m)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 50m
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622434=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622434
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 09:58
Start Date: 14/Jul/21 09:58
Worklog Time Spent: 10m 
  Work Description: marton-bod commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669468024



##
File path: 
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergMetaHook.java
##
@@ -505,19 +512,82 @@ private void 
handleReplaceColumns(org.apache.hadoop.hive.metastore.api.Table hms
 }
 
 for (FieldSchema updatedCol : schemaDifference.getTypeChanged()) {
-  Type newType = 
HiveSchemaUtil.convert(TypeInfoUtils.getTypeInfoFromTypeString(updatedCol.getType()));
-  if (!(newType instanceof Type.PrimitiveType)) {
-throw new MetaException(String.format("Cannot promote type of column: 
'%s' to a non-primitive type: %s.",
-updatedCol.getName(), newType));
-  }
-  updateSchema.updateColumn(updatedCol.getName(), (Type.PrimitiveType) 
newType, updatedCol.getComment());
+  updateSchema.updateColumn(updatedCol.getName(), 
getPrimitiveTypeOrThrow(updatedCol), updatedCol.getComment());
 }
 
 for (FieldSchema updatedCol : schemaDifference.getCommentChanged()) {
   updateSchema.updateColumnDoc(updatedCol.getName(), 
updatedCol.getComment());
 }
   }
 
+  private void handleChangeColumn(org.apache.hadoop.hive.metastore.api.Table 
hmsTable) throws MetaException {
+List hmsCols = hmsTable.getSd().getCols();
+List icebergCols = 
HiveSchemaUtil.convert(icebergTable.schema());
+// compute schema difference for renames, type/comment changes
+HiveSchemaUtil.SchemaDifference schemaDifference = 
HiveSchemaUtil.getSchemaDiff(hmsCols, icebergCols, true);
+// check column reorder (which could happen even in the absence of any 
rename, type or comment change)
+Map renameMapping = ImmutableMap.of();
+if (!schemaDifference.getMissingFromSecond().isEmpty()) {
+  renameMapping = ImmutableMap.of(
+  schemaDifference.getMissingFromSecond().get(0).getName(),
+  schemaDifference.getMissingFromFirst().get(0).getName());
+}
+Pair> outOfOrder = 
HiveSchemaUtil.getFirstOutOfOrderColumn(hmsCols, icebergCols,
+renameMapping);
+
+if (!schemaDifference.isEmpty() || outOfOrder != null) {
+  updateSchema = icebergTable.updateSchema();
+} else {
+  // we should get here if the user restated the exactly the existing 
column in the CHANGE COLUMN command

Review comment:
   If the comment is not clear to you, it needs to be fixed :) Will do it




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Issue Time Tracking
---

Worklog Id: (was: 622434)
Time Spent: 40m  (was: 0.5h)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 40m
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622432=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622432
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 09:47
Start Date: 14/Jul/21 09:47
Worklog Time Spent: 10m 
  Work Description: pvary commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669460802



##
File path: 
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergMetaHook.java
##
@@ -505,19 +512,82 @@ private void 
handleReplaceColumns(org.apache.hadoop.hive.metastore.api.Table hms
 }
 
 for (FieldSchema updatedCol : schemaDifference.getTypeChanged()) {
-  Type newType = 
HiveSchemaUtil.convert(TypeInfoUtils.getTypeInfoFromTypeString(updatedCol.getType()));
-  if (!(newType instanceof Type.PrimitiveType)) {
-throw new MetaException(String.format("Cannot promote type of column: 
'%s' to a non-primitive type: %s.",
-updatedCol.getName(), newType));
-  }
-  updateSchema.updateColumn(updatedCol.getName(), (Type.PrimitiveType) 
newType, updatedCol.getComment());
+  updateSchema.updateColumn(updatedCol.getName(), 
getPrimitiveTypeOrThrow(updatedCol), updatedCol.getComment());
 }
 
 for (FieldSchema updatedCol : schemaDifference.getCommentChanged()) {
   updateSchema.updateColumnDoc(updatedCol.getName(), 
updatedCol.getComment());
 }
   }
 
+  private void handleChangeColumn(org.apache.hadoop.hive.metastore.api.Table 
hmsTable) throws MetaException {
+List hmsCols = hmsTable.getSd().getCols();
+List icebergCols = 
HiveSchemaUtil.convert(icebergTable.schema());
+// compute schema difference for renames, type/comment changes
+HiveSchemaUtil.SchemaDifference schemaDifference = 
HiveSchemaUtil.getSchemaDiff(hmsCols, icebergCols, true);
+// check column reorder (which could happen even in the absence of any 
rename, type or comment change)
+Map renameMapping = ImmutableMap.of();
+if (!schemaDifference.getMissingFromSecond().isEmpty()) {
+  renameMapping = ImmutableMap.of(
+  schemaDifference.getMissingFromSecond().get(0).getName(),
+  schemaDifference.getMissingFromFirst().get(0).getName());
+}
+Pair> outOfOrder = 
HiveSchemaUtil.getFirstOutOfOrderColumn(hmsCols, icebergCols,
+renameMapping);
+
+if (!schemaDifference.isEmpty() || outOfOrder != null) {
+  updateSchema = icebergTable.updateSchema();
+} else {
+  // we should get here if the user restated the exactly the existing 
column in the CHANGE COLUMN command

Review comment:
   Please fix the comment, I do not get it  




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Issue Time Tracking
---

Worklog Id: (was: 622432)
Time Spent: 20m  (was: 10m)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 20m
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-14 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=622433=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-622433
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 14/Jul/21 09:47
Start Date: 14/Jul/21 09:47
Worklog Time Spent: 10m 
  Work Description: pvary commented on a change in pull request #2463:
URL: https://github.com/apache/hive/pull/2463#discussion_r669460952



##
File path: 
iceberg/iceberg-handler/src/main/java/org/apache/iceberg/mr/hive/HiveIcebergMetaHook.java
##
@@ -505,19 +512,82 @@ private void 
handleReplaceColumns(org.apache.hadoop.hive.metastore.api.Table hms
 }
 
 for (FieldSchema updatedCol : schemaDifference.getTypeChanged()) {
-  Type newType = 
HiveSchemaUtil.convert(TypeInfoUtils.getTypeInfoFromTypeString(updatedCol.getType()));
-  if (!(newType instanceof Type.PrimitiveType)) {
-throw new MetaException(String.format("Cannot promote type of column: 
'%s' to a non-primitive type: %s.",
-updatedCol.getName(), newType));
-  }
-  updateSchema.updateColumn(updatedCol.getName(), (Type.PrimitiveType) 
newType, updatedCol.getComment());
+  updateSchema.updateColumn(updatedCol.getName(), 
getPrimitiveTypeOrThrow(updatedCol), updatedCol.getComment());
 }
 
 for (FieldSchema updatedCol : schemaDifference.getCommentChanged()) {
   updateSchema.updateColumnDoc(updatedCol.getName(), 
updatedCol.getComment());
 }
   }
 
+  private void handleChangeColumn(org.apache.hadoop.hive.metastore.api.Table 
hmsTable) throws MetaException {
+List hmsCols = hmsTable.getSd().getCols();
+List icebergCols = 
HiveSchemaUtil.convert(icebergTable.schema());
+// compute schema difference for renames, type/comment changes
+HiveSchemaUtil.SchemaDifference schemaDifference = 
HiveSchemaUtil.getSchemaDiff(hmsCols, icebergCols, true);
+// check column reorder (which could happen even in the absence of any 
rename, type or comment change)
+Map renameMapping = ImmutableMap.of();
+if (!schemaDifference.getMissingFromSecond().isEmpty()) {
+  renameMapping = ImmutableMap.of(
+  schemaDifference.getMissingFromSecond().get(0).getName(),
+  schemaDifference.getMissingFromFirst().get(0).getName());
+}
+Pair> outOfOrder = 
HiveSchemaUtil.getFirstOutOfOrderColumn(hmsCols, icebergCols,
+renameMapping);
+
+if (!schemaDifference.isEmpty() || outOfOrder != null) {
+  updateSchema = icebergTable.updateSchema();
+} else {
+  // we should get here if the user restated the exactly the existing 
column in the CHANGE COLUMN command

Review comment:
   Or fix me  




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Issue Time Tracking
---

Worklog Id: (was: 622433)
Time Spent: 0.5h  (was: 20m)

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Labels: pull-request-available
>  Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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[jira] [Work logged] (HIVE-25256) Support ALTER TABLE CHANGE COLUMN for Iceberg

2021-07-09 Thread ASF GitHub Bot (Jira)


 [ 
https://issues.apache.org/jira/browse/HIVE-25256?focusedWorklogId=620978=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-620978
 ]

ASF GitHub Bot logged work on HIVE-25256:
-

Author: ASF GitHub Bot
Created on: 09/Jul/21 13:28
Start Date: 09/Jul/21 13:28
Worklog Time Spent: 10m 
  Work Description: marton-bod opened a new pull request #2463:
URL: https://github.com/apache/hive/pull/2463


   ### What changes were proposed in this pull request?
   Introduce support for `ALTER TABLE tbl CHANGE COLUMN`
   
   
   ### Why are the changes needed?
   Allows us to rename a column, change its type (only float->double, 
int->bigint, decimal changes), change its comment or change its order.
   
   
   ### Does this PR introduce _any_ user-facing change?
   yes, new query type for iceberg
   
   
   ### How was this patch tested?
   Unit tests
   


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Issue Time Tracking
---

Worklog Id: (was: 620978)
Remaining Estimate: 0h
Time Spent: 10m

> Support ALTER TABLE CHANGE COLUMN for Iceberg
> -
>
> Key: HIVE-25256
> URL: https://issues.apache.org/jira/browse/HIVE-25256
> Project: Hive
>  Issue Type: New Feature
>Reporter: Marton Bod
>Assignee: Marton Bod
>Priority: Major
>  Time Spent: 10m
>  Remaining Estimate: 0h
>
> In order to provide support for renaming/changing the data type of a single 
> column, we should add alter table change column support for Iceberg tables.



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