How do I read data from Ignite KV-storage using jdbc? - sql

Question

It is ok putting/getting data from KV-store for me, using custom class for value.
Also it is ok INSERTING/SELECTING data from table, created using jdbc. This way i'm getting cache named SQL_PUBLIC_TABLENAME.
But I can't find way to INSERT/SELECT data from KV-store using SQL queries. I've created custom value class and defined fields using #QuerySqlField annotation like that:
#QuerySqlField(index = true)
public Integer id;
#QuerySqlField(index = true)
public String records_offset;
#QuerySqlField(index = true)
public Integer session_id;
Then I defined cache using xml-config this way:
<property name="cacheConfiguration">
<bean class="org.apache.ignite.configuration.CacheConfiguration">
<!-- Set a cache name. -->
<property name="name" value="test"/>
<property name="queryEntities">
<list>
<bean class="org.apache.ignite.cache.QueryEntity">
<property name="keyType" value="java.lang.Integer"/>
<property name="valueType" value="CDR"/>
<property name="tableName" value="CDR"/>
<property name="fields">
<map>
<entry key="id" value="java.lang.Long"/>
<entry key="records_offset" value="java.lang.String"/>
<entry key="session_id" value="java.lang.Integer"/>
</map>
</property>
</bean>
</list>
</property>
<!-- Set cache mode. -->
<property name="cacheMode" value="PARTITIONED"/>
</bean>
</property>
I've got cache that I can put/get data in/from, and also I can connect to Ignite using sqlline tool, where I can see CDR table (among others created throug jdbc) with test schema:
0: jdbc:ignite:thin://127.0.0.1/> !tables
+--------------------------------+--------------------------------+--------------------------------+
| TABLE_CAT | TABLE_SCHEM | TABLE_NAME |
+--------------------------------+--------------------------------+--------------------------------+
| | PUBLIC | CITY |
| | test | CDR |
| | PUBLIC | PERSON |
| | PUBLIC | TEST2 |
| | PUBLIC | LOL |
| | PUBLIC | TEST |
+--------------------------------+--------------------------------+--------------------------------+
But I can't neither read nor put data into that CDR table:
0: jdbc:ignite:thin://127.0.0.1/> DROP table CDR;
Error: Table doesn't exist: CDR (state=42000,code=0)
java.sql.SQLException: Table doesn't exist: CDR
at org.apache.ignite.internal.jdbc.thin.JdbcThinConnection.sendRequest(JdbcThinConnection.java:671)
at org.apache.ignite.internal.jdbc.thin.JdbcThinStatement.execute0(JdbcThinStatement.java:130)
at org.apache.ignite.internal.jdbc.thin.JdbcThinStatement.execute(JdbcThinStatement.java:299)
at sqlline.Commands.execute(Commands.java:823)
at sqlline.Commands.sql(Commands.java:733)
at sqlline.SqlLine.dispatch(SqlLine.java:795)
at sqlline.SqlLine.begin(SqlLine.java:668)
at sqlline.SqlLine.start(SqlLine.java:373)
at sqlline.SqlLine.main(SqlLine.java:265)
0: jdbc:ignite:thin://127.0.0.1/> select * from CDR;
Error: Failed to parse query: select * from CDR (state=42000,code=0)
java.sql.SQLException: Failed to parse query: select * from CDR
at org.apache.ignite.internal.jdbc.thin.JdbcThinConnection.sendRequest(JdbcThinConnection.java:671)
at org.apache.ignite.internal.jdbc.thin.JdbcThinStatement.execute0(JdbcThinStatement.java:130)
at org.apache.ignite.internal.jdbc.thin.JdbcThinStatement.execute(JdbcThinStatement.java:299)
at sqlline.Commands.execute(Commands.java:823)
at sqlline.Commands.sql(Commands.java:733)
at sqlline.SqlLine.dispatch(SqlLine.java:795)
at sqlline.SqlLine.begin(SqlLine.java:668)
at sqlline.SqlLine.start(SqlLine.java:373)
at sqlline.SqlLine.main(SqlLine.java:265)
0: jdbc:ignite:thin://127.0.0.1/> insert into CDR(ID, RECORDS_OFFSET, SESSION_ID) values (23, '12', 123);
Error: Failed to parse query: insert into CDR(ID, RECORDS_OFFSET, SESSION_ID) values (23, '12', 123) (state=42000,code=0)
java.sql.SQLException: Failed to parse query: insert into CDR(ID, RECORDS_OFFSET, SESSION_ID) values (23, '12', 123)
at org.apache.ignite.internal.jdbc.thin.JdbcThinConnection.sendRequest(JdbcThinConnection.java:671)
at org.apache.ignite.internal.jdbc.thin.JdbcThinStatement.execute0(JdbcThinStatement.java:130)
at org.apache.ignite.internal.jdbc.thin.JdbcThinStatement.execute(JdbcThinStatement.java:299)
at sqlline.Commands.execute(Commands.java:823)
at sqlline.Commands.sql(Commands.java:733)
at sqlline.SqlLine.dispatch(SqlLine.java:795)
at sqlline.SqlLine.begin(SqlLine.java:668)
at sqlline.SqlLine.start(SqlLine.java:373)
at sqlline.SqlLine.main(SqlLine.java:265)
0: jdbc:ignite:thin://127.0.0.1/>

Answer 1

You need to use schema name to access this table:
select * from "test".CDR;
or
select * from "test.CDR";
Also, if this won't help, try to set CacheConfiguration.setSqlSchema using uppercase, for example, "PUBLIC" and use this schema name