[Bug] BE crash when using ARRAY_MAP and ARRAY_GENERATE

[luohaha]

Steps to reproduce the behavior (Required)

1. CREATE TABLE

   CREATE TABLE B
   (
   id INT NOT NULL COMMENT "",
   data_array ARRAY<STRING> NULL COMMENT ""
   ) ENGINE=OLAP
   PRIMARY KEY(`id`)
   DISTRIBUTED BY HASH(`id`) BUCKETS 1
   PROPERTIES (
   "replication_num" = "1"
   );

2. INSERT INTO

   INSERT INTO B (id, data_array)
   VALUES 
   (1, ARRAY_MAP(
   x -> CAST(x AS STRING), 
   ARRAY_GENERATE(1, 1000)
   )),
   (2, ARRAY_MAP(
   x -> CAST(x AS STRING), 
   ARRAY_GENERATE(1, 1000)
   )),
   (3, ARRAY_MAP(
   x -> CAST(x AS STRING), 
   ARRAY_GENERATE(1, 1000)
   )),
   (4, ARRAY_MAP(
   x -> CAST(x AS STRING), 
   ARRAY_GENERATE(1, 1000)
   )),
   (5, ARRAY_MAP(
   x -> CAST(x AS STRING), 
   ARRAY_GENERATE(1, 1000)
   ));

Expected behavior (Required)

Success

Real behavior (Required)

Be crash:

*** Aborted at 1723503069 (unix time) try "date -d @1723503069" if you are using GNU date ***
PC: @          0x51c5d75 starrocks::ArrayMapExpr::evaluate_checked()
*** SIGSEGV (@0x0) received by PID 2861 (TID 0x7f855594b700) from PID 0; stack trace: ***
    @          0x6bb1782 google::(anonymous namespace)::FailureSignalHandler()
    @     0x7f85d378f630 (unknown)
    @          0x51c5d75 starrocks::ArrayMapExpr::evaluate_checked()
    @          0x4890e03 starrocks::ExprContext::evaluate()
    @          0x489114f starrocks::ExprContext::evaluate()
    @          0x3a9254c starrocks::pipeline::UnionConstSourceOperator::pull_chunk()
    @          0x3a43d1d starrocks::pipeline::PipelineDriver::process()
    @          0x3a35c7e starrocks::pipeline::GlobalDriverExecutor::_worker_thread()
    @          0x305182c starrocks::ThreadPool::dispatch_thread()
    @          0x304b4aa starrocks::Thread::supervise_thread()
    @     0x7f85d3787ea5 start_thread
    @     0x7f85d2b88b0d __clone
    @                0x0 (unknown)

StarRocks version (Required)

• branch-3.2-d35c9a7

[chenminghua8]

The "starrocks::ArrayMapExpr::evaluate_checked(ExprContext context, Chunk chunk)" method does not handle the case where "chunk" is null. @silverbullet233 Are you already working on this task? If not, can you assign it to me?

[before-Sunrise]

The "starrocks::ArrayMapExpr::evaluate_checked(ExprContext context, Chunk chunk)" method does not handle the case where "chunk" is null. @silverbullet233 Are you already working on this task? If not, can you assign it to me?

this is not only ArrayMapExpr but also other expr can not handler nullptr, so I will handle it in other place. If you are willing to contribute, can pick some other interesting issues

[chenminghua8]

ok