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https://issues.apache.org/jira/browse/PHOENIX-7032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17782359#comment-17782359
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ASF GitHub Bot commented on PHOENIX-7032:
-----------------------------------------

jpisaac commented on PR #1701:
URL: https://github.com/apache/phoenix/pull/1701#issuecomment-1791738636

   Create index on SYSTEM.CATALOG fails with the following exception. 
   Note the SYSTEM.CATALOG exists and EXECUTE UPGRADE has already been called. 
I think some checks for index table creation is failing.
   
   : jdbc:phoenix:localhost> CREATE INDEX IF NOT EXISTS SYS_TABLE_TYPE_INDEX ON 
SYSTEM.CATALOG(TENANT_ID, TABLE_SCHEM, TABLE_NAME, TABLE_TYPE, VIEW_TYPE) WHERE 
TABLE_TYPE IS NOT NULL;
   Error: Operation not allowed since cluster hasn't been upgraded. Call 
EXECUTE UPGRADE. (state=INT13,code=2011)
   org.apache.phoenix.exception.UpgradeRequiredException: Operation not allowed 
since cluster hasn't been upgraded. Call EXECUTE UPGRADE.
        at 
org.apache.phoenix.query.ConnectionQueryServicesImpl.ensureTableCreated(ConnectionQueryServicesImpl.java:1553)
        at 
org.apache.phoenix.query.ConnectionQueryServicesImpl.createTable(ConnectionQueryServicesImpl.java:2118)
        at 
org.apache.phoenix.schema.MetaDataClient.createTableInternal(MetaDataClient.java:3056)
        at 
org.apache.phoenix.schema.MetaDataClient.createIndex(MetaDataClient.java:1557)
        at 
org.apache.phoenix.compile.CreateIndexCompiler$1.execute(CreateIndexCompiler.java:222)
        at 
org.apache.phoenix.jdbc.PhoenixStatement$2.call(PhoenixStatement.java:559)
        at 
org.apache.phoenix.jdbc.PhoenixStatement$2.call(PhoenixStatement.java:525)
        at org.apache.phoenix.call.CallRunner.run(CallRunner.java:53)
        at 
org.apache.phoenix.jdbc.PhoenixStatement.executeMutation(PhoenixStatement.java:524)
        at 
org.apache.phoenix.jdbc.PhoenixStatement.executeMutation(PhoenixStatement.java:512)
        at 
org.apache.phoenix.jdbc.PhoenixStatement.execute(PhoenixStatement.java:2216)
        at sqlline.Commands.execute(Commands.java:814)
        at sqlline.Commands.sql(Commands.java:754)
        at sqlline.SqlLine.dispatch(SqlLine.java:646)
        at sqlline.SqlLine.begin(SqlLine.java:510)
        at sqlline.SqlLine.start(SqlLine.java:233)
        at sqlline.SqlLine.main(SqlLine.java:175)
   




> Partial Global Secondary Indexes
> --------------------------------
>
>                 Key: PHOENIX-7032
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-7032
>             Project: Phoenix
>          Issue Type: New Feature
>            Reporter: Kadir Ozdemir
>            Assignee: Kadir Ozdemir
>            Priority: Major
>
> The secondary indexes supported in Phoenix have been full indexes such that 
> for every data table row there is an index row. Generating an index row for 
> every data table row is not always required. For example, some use cases do 
> not require index rows for the data table rows in which indexed column values 
> are null. Such indexes are called sparse indexes. Partial indexes generalize 
> the concept of sparse indexing and allow users to specify the subset of the 
> data table rows for which index rows will be maintained. This subset is 
> specified using a WHERE clause added to the CREATE INDEX DDL statement.
> Partial secondary indexes were first proposed by Michael Stonebraker 
> [here|https://dsf.berkeley.edu/papers/ERL-M89-17.pdf]. Since then several SQL 
> databases (e.g., 
> [Postgres|https://www.postgresql.org/docs/current/indexes-partial.html] and 
> [SQLite|https://www.sqlite.org/partialindex.html])  and NoSQL databases 
> (e.g., [MongoDB|https://www.mongodb.com/docs/manual/core/index-partial/]) 
> have supported some form of partial indexes. It is challenging to allow 
> arbitrary WHERE clauses in DDL statements. For example, Postgres does not 
> allow subqueries in these where clauses and SQLite supports much more 
> restrictive where clauses. 
> Supporting arbitrary where clauses creates challenges for query optimizers in 
> deciding the usability of a partial index for a given query. If the set of 
> data table rows that satisfy the query is a subset of the data table rows 
> that the partial index points back, then the query can use the index. Thus, 
> the query optimizer has to decide if the WHERE clause of the query implies 
> the WHERE clause of the index. 
> Michael Stonebraker [here|https://dsf.berkeley.edu/papers/ERL-M89-17.pdf] 
> suggests that an index WHERE clause is a conjunct of simple terms, i.e: 
> i-clause-1 and i-clause-2 and ... and i-clause-m where each clause is of the 
> form <column> <operator> <constant>. Hence, the qualification can be 
> evaluated for each tuple in the indicated relation without consulting 
> additional tuples. 
> Phoenix partial indexes will initially support a more general set of index 
> WHERE clauses that can be evaluated on a single row with the following 
> exceptions
>  * Subqueries are not allowed.
>  * Like expressions are allowed with very limited support such that an index 
> WHERE clause with like expressions can imply/contain a query if the query has 
> the same like expressions that the index WHERE clause has.
>  * Comparison between columns are allowed without supporting transitivity, 
> for example, a > b and b > c does not imply a > c.
> Partial indexes will be supported initially for global secondary indexes, 
> i.e.,  covered global indexes and uncovered global indexes. The local 
> secondary indexes will be supported in future.



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