SELECT 
    T1.event, 
    T1.origin, 
    CASE WHEN T1.event > 50 THEN 'High' ELSE 'Low' END 
FROM telemetry T1 
INNER JOIN telemetry T2 ON T1.created < T2.created 
WHERE (cast(T1.origin as SYMBOL)) IS NULL AND NOW() = NOW() 
ORDER BY (cast(T1.origin as SYMBOL)) NOT IN ('{}') 
LIMIT NULL;

2026-02-09T13:46:03.161178Z C i.q.c.h.p.JsonQueryProcessorState [1093069874965] internal error [ex=java.lang.AssertionError
	at io.questdb.griffin.engine.table.FilteredRecordCursorFactory.<init>(FilteredRecordCursorFactory.java:44)
	at io.questdb.griffin.SqlCodeGenerator.generateJoins(SqlCodeGenerator.java:4194)
	at io.questdb.griffin.SqlCodeGenerator.generateSelect(SqlCodeGenerator.java:5344)
	at io.questdb.griffin.SqlCodeGenerator.generateQuery0(SqlCodeGenerator.java:4839)
	at io.questdb.griffin.SqlCodeGenerator.generateQuery(SqlCodeGenerator.java:4814)
	at io.questdb.griffin.SqlCodeGenerator.generateSubQuery(SqlCodeGenerator.java:6851)
	at io.questdb.griffin.SqlCodeGenerator.generateSelectChoose(SqlCodeGenerator.java:5358)
	at io.questdb.griffin.SqlCodeGenerator.generateSelect(SqlCodeGenerator.java:5335)
	at io.questdb.griffin.SqlCodeGenerator.generateQuery0(SqlCodeGenerator.java:4839)
	at io.questdb.griffin.SqlCodeGenerator.generateQuery(SqlCodeGenerator.java:4814)
	at io.questdb.griffin.SqlCodeGenerator.generateSubQuery(SqlCodeGenerator.java:6851)
	at io.questdb.griffin.SqlCodeGenerator.generateSelectVirtual(SqlCodeGenerator.java:5991)
	at io.questdb.griffin.SqlCodeGenerator.generateSelect(SqlCodeGenerator.java:5337)
	at io.questdb.griffin.SqlCodeGenerator.generateQuery0(SqlCodeGenerator.java:4839)
	at io.questdb.griffin.SqlCodeGenerator.generateQuery(SqlCodeGenerator.java:4814)
	at io.questdb.griffin.SqlCodeGenerator.generateSubQuery(SqlCodeGenerator.java:6851)
	at io.questdb.griffin.SqlCodeGenerator.generateSelectChoose(SqlCodeGenerator.java:5358)
	at io.questdb.griffin.SqlCodeGenerator.generateSelect(SqlCodeGenerator.java:5335)
	at io.questdb.griffin.SqlCodeGenerator.generateQuery0(SqlCodeGenerator.java:4839)
	at io.questdb.griffin.SqlCodeGenerator.generateQuery(SqlCodeGenerator.java:4814)
	at io.questdb.griffin.SqlCodeGenerator.generate(SqlCodeGenerator.java:682)
	at io.questdb.griffin.SqlCompilerImpl.generateSelectOneShot(SqlCompilerImpl.java:4862)
	at io.questdb.griffin.SqlCompilerImpl.generateSelectWithRetries(SqlCompilerImpl.java:545)
	at io.questdb.griffin.SqlCompilerImpl.compileUsingModel(SqlCompilerImpl.java:3473)
	at io.questdb.griffin.SqlCompilerImpl.compileInner(SqlCompilerImpl.java:2830)
	at io.questdb.griffin.SqlCompilerImpl.compile(SqlCompilerImpl.java:414)
	at io.questdb.cairo.pool.SqlCompilerPool$C.compile(SqlCompilerPool.java:145)
	at io.questdb.cutlass.http.processors.JsonQueryProcessor.compileAndExecuteQuery(JsonQueryProcessor.java:493)
	at io.questdb.cutlass.http.processors.JsonQueryProcessor.execute0(JsonQueryProcessor.java:219)
	at io.questdb.cutlass.http.processors.JsonQueryProcessor.onRequestComplete(JsonQueryProcessor.java:309)
	at io.questdb.cutlass.http.HttpConnectionContext.handleClientRecv(HttpConnectionContext.java:985)
	at io.questdb.cutlass.http.HttpConnectionContext.handleClientOperation(HttpConnectionContext.java:323)
	at io.questdb.cutlass.http.HttpServer.handleClientOperation(HttpServer.java:350)
	at io.questdb.cutlass.http.HttpServer$1.lambda$$0(HttpServer.java:114)
	at io.questdb.network.AbstractIODispatcher.processIOQueue(AbstractIODispatcher.java:224)
	at io.questdb.cutlass.http.HttpServer$1.run(HttpServer.java:118)
	at io.questdb.mp.Worker.run(Worker.java:152)