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https://issues.apache.org/jira/browse/PHOENIX-6186?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17221823#comment-17221823
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ASF GitHub Bot commented on PHOENIX-6186:
-----------------------------------------
gjacoby126 commented on a change in pull request #935:
URL: https://github.com/apache/phoenix/pull/935#discussion_r513080213
##########
File path: phoenix-core/src/it/java/org/apache/phoenix/end2end/ViewIT.java
##########
@@ -387,6 +388,31 @@ public void testViewUsesTableLocalIndex() throws Exception
{
}
}
+ @Test
+ public void testCreateViewTimestamp() throws Exception {
+ Properties props = new Properties();
+ final String schemaName = "S_" + generateUniqueName();
+ final String tableName = "T_" + generateUniqueName();
+ final String viewName = "V_" + generateUniqueName();
+ final String dataTableFullName = SchemaUtil.getTableName(schemaName,
tableName);
+ final String viewFullName = SchemaUtil.getTableName(schemaName,
viewName);
+ String tableDDL =
+ "CREATE TABLE " + dataTableFullName + " (\n" + "ID1 VARCHAR(15)
NOT NULL,\n"
+ + "ID2 VARCHAR(15) NOT NULL,\n" + "CREATED_DATE DATE,\n"
+ + "CREATION_TIME BIGINT,\n" + "LAST_USED DATE,\n"
+ + "CONSTRAINT PK PRIMARY KEY (ID1, ID2)) ";
+ String viewDDL = "CREATE VIEW " + viewFullName + " AS SELECT * " +
+ "FROM " + dataTableFullName;
+ long startTS = EnvironmentEdgeManager.currentTimeMillis();
+ try (Connection conn = DriverManager.getConnection(getUrl(), props)) {
+ conn.createStatement().execute(tableDDL);
+ conn.createStatement().execute(viewDDL);
+ conn.commit();
Review comment:
Done
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> Store table metadata last modified timestamp in PTable / System.Catalog
> -----------------------------------------------------------------------
>
> Key: PHOENIX-6186
> URL: https://issues.apache.org/jira/browse/PHOENIX-6186
> Project: Phoenix
> Issue Type: New Feature
> Reporter: Geoffrey Jacoby
> Assignee: Geoffrey Jacoby
> Priority: Major
> Fix For: 4.16.0
>
> Attachments: PHOENIX-6186-4.x.patch
>
>
> There are many reasons why it's useful to know when a particular table's
> metadata was last modified. It's helpful when solving cache coherency
> problems, and also in order to interact with external schema registries which
> may have multiple versions of a particular schema and require a timestamp to
> resolve ambiguities.
> This JIRA will add a last modified timestamp field to System.Catalog, to be
> updated both when creating a table/view and also when adding or removing a
> column. Changing purely internal Phoenix properties will not update the
> timestamp.
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