使用現有的常用 Hbase 表創建 Phoenix 表視圖

Question

我已經克隆了一個表，我正在嘗試根據https://phoenix.apache.org/faq.html#How_I_map_Phoenix_table_to_an_existing_HBase_table 為其創建一個 Phoenix 視圖。

假設我在下面有兩個 HBase 表。

hbase(main):008:0> describe 'USERINFO'
Table USERINFO is ENABLED                                                                                                                                                                                                           
USERINFO, {TABLE_ATTRIBUTES => {coprocessor$1 => '|org.apache.phoenix.coprocessor.ScanRegionObserver|805306366|', coprocessor$2 => '|org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver|805306366|', coprocessor$3 => '
|org.apache.phoenix.coprocessor.GroupedAggregateRegionObserver|805306366|', coprocessor$4 => '|org.apache.phoenix.coprocessor.ServerCachingEndpointImpl|805306366|', coprocessor$5 => '|org.apache.phoenix.hbase.index.Indexer|80530
6366|index.builder=org.apache.phoenix.index.PhoenixIndexBuilder,org.apache.hadoop.hbase.index.codec.class=org.apache.phoenix.index.PhoenixIndexCodec', coprocessor$6 => '|org.apache.hadoop.hbase.regionserver.LocalIndexSplitter|80
5306366|'}                                                                                                                                                                                                                          
COLUMN FAMILIES DESCRIPTION                                                                                                                                                                                                         
{NAME => '0', DATA_BLOCK_ENCODING => 'FAST_DIFF', BLOOMFILTER => 'ROW', REPLICATION_SCOPE => '0', VERSIONS => '1', COMPRESSION => 'SNAPPY', MIN_VERSIONS => '0', TTL => 'FOREVER', KEEP_DELETED_CELLS => 'FALSE', BLOCKSIZE => '6553
6', IN_MEMORY => 'false', BLOCKCACHE => 'true'}

hbase(main):006:0> describe 'USERPREFERENCE'
Table USERPREFERENCE is ENABLED                                                                                                                                                                                                     
USERPREFERENCE, {TABLE_ATTRIBUTES => {coprocessor$1 => '|org.apache.phoenix.coprocessor.ScanRegionObserver|805306366|', coprocessor$2 => '|org.apache.phoenix.coprocessor.UngroupedAggregateRegionObserver|805306366|', coprocessor$
3 => '|org.apache.phoenix.coprocessor.GroupedAggregateRegionObserver|805306366|', coprocessor$4 => '|org.apache.phoenix.coprocessor.ServerCachingEndpointImpl|805306366|', coprocessor$5 => '|org.apache.phoenix.hbase.index.Indexer
|805306366|index.builder=org.apache.phoenix.index.PhoenixIndexBuilder,org.apache.hadoop.hbase.index.codec.class=org.apache.phoenix.index.PhoenixIndexCodec', coprocessor$6 => '|org.apache.hadoop.hbase.regionserver.LocalIndexSplit
ter|805306366|'}                                                                                                                                                                                                                    
COLUMN FAMILIES DESCRIPTION                                                                                                                                                                                                         
{NAME => '0', DATA_BLOCK_ENCODING => 'FAST_DIFF', BLOOMFILTER => 'ROW', REPLICATION_SCOPE => '0', COMPRESSION => 'SNAPPY', VERSIONS => '1', TTL => 'FOREVER', MIN_VERSIONS => '0', KEEP_DELETED_CELLS => 'FALSE', BLOCKSIZE => '6553
6', IN_MEMORY => 'false', BLOCKCACHE => 'true'}                                                                                                                                                                                     

我會運行以下命令在 Phoenix 中創建表視圖嗎？

CREATE VIEW USERINFO ( pk VARCHAR PRIMARY KEY, "0".team VARCHAR, "0".firstname, "0".lastname )

CREATE VIEW USERPREFERENCE ( pk VARCHAR PRIMARY KEY, "0".firstname VARCHAR, "0".lastname )

這似乎不正確。 如何根據這種情況創建表格視圖？

Answer 1

所以我相信你缺少的是你需要指定每列的變量類型。 因此，從技術上講，您需要提及變量名的列類型，依此類推。

我嘗試並測試了這段代碼。 首先，我啟動了我的 hbase-shell（不要擔心 DCDR，它只是我的命名空間，我們的 DBA 幾乎已經鎖定了這個）：

create 'DCDR:USERINFOV2', {NAME => '0', VERSIONS => 5}

create 'DCDR:USERPREFERENCEV2', {NAME => '0', VERSIONS => 5}

然后我啟動我的鳳凰 shell：

CREATE VIEW "DCDR:USERINFOV2" ( pk VARCHAR PRIMARY KEY, "0".team VARCHAR, "0".firstname VARCHAR, "0".lastname VARCHAR);

CREATE VIEW "DCDR:USERPREFERENCEV2" ( pk VARCHAR PRIMARY KEY, "0".firstname VARCHAR, "0".lastname VARCHAR);

這給了我意見。 希望這對你有用。 如果沒有，請告訴我。