Github user vesense commented on the issue:
https://github.com/apache/storm/pull/1751
example SQL:
_NOTE: All the `\n` should be removed before you test it_
```
CREATE EXTERNAL TABLE ORDERS (ID INT PRIMARY KEY, UNIT_PRICE INT, QUANTITY
INT)
STORED AS
INPUTFORMAT org.apache.storm.sql.runtime.serde.avro.AvroScheme
OUTPUTFORMAT org.apache.storm.sql.runtime.serde.avro.AvroSerializer
LOCATION 'kafka://localhost:2181/brokers?topic=orders'
TBLPROPERTIES '
{
"producer": {
"bootstrap.servers": "localhost:9092",
"acks": "1",
"key.serializer":
"org.apache.org.apache.storm.kafka.IntSerializer",
"value.serializer":
"org.apache.org.apache.storm.kafka.ByteBufferSerializer"
},
"input.avro.schema": "
{\"type\": \"record\",
\"name\": \"orders\",
\"fields\" : [
{\"name\": \"id\", \"type\": \"int\"},
{\"name\": \"unit_price\", \"type\": \"int\"},
{\"name\": \"quantity\", \"type\": \"int\"},
{\"name\": \"timestamp\", \"type\": \"long\"}
]
}
",
"output.avro.schema": "
{\"type\": \"record\",
\"name\": \"orders\",
\"fields\" : [
{\"name\": \"id\", \"type\": \"int\"},
{\"name\": \"unit_price\", \"type\": \"int\"},
{\"name\": \"quantity\", \"type\": \"int\"}
]
}
"
}'
CREATE EXTERNAL TABLE LARGE_ORDERS (ID INT PRIMARY KEY, TOTAL INT)
STORED AS
INPUTFORMAT org.apache.storm.sql.runtime.serde.avro.AvroScheme
OUTPUTFORMAT org.apache.storm.sql.runtime.serde.avro.AvroSerializer
LOCATION 'kafka://localhost:2181/brokers?topic=large_orders'
TBLPROPERTIES '
{
"producer": {
"bootstrap.servers": "localhost:9092",
"acks": "1",
"key.serializer":
"org.apache.org.apache.storm.kafka.IntSerializer",
"value.serializer":
"org.apache.org.apache.storm.kafka.ByteBufferSerializer"
},
"input.avro.schema": "
{\"type\": \"record\",
\"name\": \"large_orders\",
\"fields\" : [
{\"name\": \"id\", \"type\": \"int\"},
{\"name\": \"total\", \"type\": \"int\"},
{\"name\": \"timestamp\", \"type\": \"long\"}
]
}
",
"output.avro.schema": "
{\"type\": \"record\",
\"name\": \"large_orders\",
\"fields\" : [
{\"name\": \"id\", \"type\": \"int\"},
{\"name\": \"total\", \"type\": \"int\"}
]
}
"
}'
INSERT INTO LARGE_ORDERS
SELECT ID, UNIT_PRICE * QUANTITY AS TOTAL FROM ORDERS WHERE UNIT_PRICE *
QUANTITY > 50
```
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