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From ramkrish86 <...@git.apache.org>
Subject [GitHub] phoenix pull request: Phoenix-180
Date Thu, 11 Sep 2014 12:37:29 GMT
Github user ramkrish86 commented on a diff in the pull request:

    https://github.com/apache/phoenix/pull/12#discussion_r17418000
  
    --- Diff: phoenix-core/src/main/java/org/apache/phoenix/schema/MetaDataClient.java ---
    @@ -462,6 +477,71 @@ public MutationState createTable(CreateTableStatement statement,
byte[][] splits
             return connection.getQueryServices().updateData(plan);
         }
     
    +    public long updateStatistics(UpdateStatisticsStatement updateStatisticsStmt) throws
SQLException {
    +        String tableName = updateStatisticsStmt.getTable().getName().getTableName();
    +        // Check before updating the stats if we have reached the configured time to
reupdate the stats once again
    +        long minTimeForStatsUpdate = connection.getQueryServices().getProps()
    +                .getLong(StatisticsConstants.MIN_STATS_FREQ_UPDATION, StatisticsConstants.DEFAULT_STATS_FREQ_UPDATION);
    +        // TODO : Check if we need the table key type of table name here. 
    +        // May be we can avoid multiple calls from the 
    +        // same connection
    +        byte[] tenantIdBytes = QueryConstants.EMPTY_BYTE_ARRAY;
    +        // TODO : If tenantId is not null we may have to get the actual table name (PTable.getPhysicalName)
    +        if (connection.getTenantId() != null) {
    +            tenantIdBytes = connection.getTenantId().getBytes();
    +        }
    +        byte[] schemaNameBytes = QueryConstants.EMPTY_BYTE_ARRAY;
    +        if (connection.getSchema() != null) {
    +            schemaNameBytes = Bytes.toBytes(connection.getSchema());
    +        }
    +        try {
    +            if (inProgress.get() > 0) {
    +                // Already in progress
    +                return 0;
    +            }
    +            inProgress.incrementAndGet();
    +            // Always invalidate the cache
    +            connection.getQueryServices().clearCacheForTable(tenantIdBytes, schemaNameBytes,
Bytes.toBytes(tableName));
    +            String schema = Bytes.toString(schemaNameBytes);
    +            // Clear the cache also. So that for cases like major compaction also we
would be able to use the stats
    +            updateCache(schema, tableName, true);
    +            String query = "SELECT " + "LAST_STATS_UPDATE_TIME_IN_MS " + " FROM " + SYSTEM_CATALOG_SCHEMA
+ "."
    --- End diff --
    
         last_stats_updated -
    
    You want this column itself to be date?


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