[GitHub] clintropolis opened a new pull request #6974: sql support for dynamic parameters

[GitBox]

clintropolis opened a new pull request #6974: sql support for dynamic parameters
URL: https://github.com/apache/incubator-druid/pull/6974
 
 
   This PR adds support for parameterized SQL queries of the form:
   
   ```
   SELECT COUNT(*) FROM data_source WHERE foo = ? AND __time > ?
   ```
   
   Over the HTTP API :
   
   ```json
   {
     "query" : "SELECT COUNT(*) FROM data_source WHERE foo = ? AND __time > ?",
     "parameters": [
       { "ordinal": 1, "type": "VARCHAR", "value": "bar"},
       { "ordinal": 2, "type": "TIMESTAMP", "value": "2000-01-01 00:00:00" }
     ]
   }
   ```
   
   JDBC:
   ```
   PreparedStatement statement = connection.prepareStatement("SELECT COUNT(*) 
AS cnt FROM druid.foo WHERE dim1 = ? OR dim1 = ?");
   statement.setString(1, "abc");
   statement.setString(2, "def");
   final ResultSet resultSet = statement.executeQuery(query);
   ```
   

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